JP7639101B2 - Program, information processing method, and terminal - Google Patents

Description

This disclosure relates to programs, information processing methods, terminals, etc.

Recently, there are more and more opportunities for users to use chat services such as messaging services using terminals such as smartphones and personal computers. For example, Patent Literature 1 discloses technology related to messaging services.

JP 2014-160467 A

According to a first aspect of the present invention, a program to be executed by a terminal includes displaying a first chat room including a user of the terminal on a display unit of the terminal, displaying on the display unit a first display related to moving from the first chat room displayed on the display unit to a second chat room and displaying the second chat room on the display unit, and performing a first process related to the display of the second chat room by a control unit of the terminal based on an input to the terminal on which the first display is displayed.
According to a second aspect of the present invention, an information processing method for a terminal includes displaying a first chat room including a user of the terminal on a display unit of the terminal, displaying on the display unit a first display related to moving from the first chat room displayed on the display unit to a second chat room and displaying the second chat room on the display unit, and performing a first process related to the display of the second chat room by a control unit of the terminal based on an input to the terminal on which the first display is displayed.
According to a third aspect of the present invention, a terminal includes a display unit that displays a first chat room including a user of the terminal, moves from the displayed first chat room to a second chat room, and displays a first display related to displaying the second chat room, and a control unit that performs a first process related to the display of the second chat room based on an input to the terminal on which the first display is displayed.
According to a fourth aspect of the present invention, a terminal includes a processor that reads a program stored in a memory unit and executes processing based on the program, and the processor executes the following: displaying a first chat room including a user of the terminal on a display unit of the terminal; displaying on the display unit a first display related to moving from the first chat room displayed on the display unit to a second chat room and displaying the second chat room on the display unit; and performing a first process related to the display of the second chat room based on an input to the terminal on which the first display is displayed.

FIG. 1 is a diagram illustrating an example of a system configuration of a communication system according to an embodiment. FIG. 4 is a diagram showing an example of functions realized by a control unit of the server according to the first embodiment. FIG. 4 is a diagram showing an example of information stored in a storage unit of the server according to the first embodiment. FIG. 4 is a diagram showing an example of user registration data according to the first embodiment. FIG. 4 is a diagram showing an example of friend registration data according to the first embodiment. FIG. 4 is a diagram showing an example of functions realized by a control unit of the terminal according to the first embodiment. FIG. 4 is a diagram showing an example of information stored in a storage unit of the terminal according to the first embodiment. FIG. 11 is a diagram showing an example of a talk room pattern table according to the first embodiment. FIG. 4 is a diagram showing an example of a screen displayed on a display unit of the terminal according to the first embodiment. FIG. 4 is a diagram showing an example of a screen displayed on a display unit of the terminal according to the first embodiment. 10 is a flowchart showing an example of a flow of a process executed by the terminal according to the first embodiment; FIG. 13 is a diagram showing an example of a destination talk room candidate determination table according to the second embodiment. FIG. 11 is a diagram showing an example of a screen displayed on a display unit of a terminal according to a second embodiment. FIG. 11 is a diagram showing an example of a screen displayed on a display unit of a terminal according to a second embodiment. FIG. 11 is a diagram showing an example of a screen displayed on a display unit of a terminal according to a second embodiment. 10 is a flowchart showing an example of a flow of a process executed by a terminal according to a second embodiment; 10 is a flowchart showing an example of a flow of processes executed by each device according to a second modified example. FIG. 13 is a diagram showing an example of a talk room information display condition table according to the third embodiment. FIG. 13 is a diagram showing an example of a screen displayed on a display unit of a terminal according to a third embodiment. 13 is a flowchart showing an example of a flow of a process executed by a terminal according to a third embodiment; FIG. 13 is a diagram showing an example of a talk room information display deletion condition table according to the fourth embodiment. 13 is a flowchart showing an example of a flow of a process executed by a terminal according to a fourth embodiment; FIG. 13 is a diagram showing an example of a screen displayed on a display unit of a terminal according to a fifth embodiment. 13 is a flowchart showing an example of a flow of a process executed by a terminal according to a fifth embodiment; FIG. 23 is a diagram showing an example of a screen displayed on a display unit of a terminal according to a sixth embodiment. FIG. 23 is a diagram showing an example of a screen displayed on a display unit of a terminal according to a sixth embodiment. 23 is a flowchart showing an example of a flow of a process executed by a terminal according to the sixth embodiment; FIG. 13 is a diagram showing an example of a screen displayed on a display unit of a terminal according to a sixth modified example. FIG. 23 is a diagram showing an example of a screen displayed on a display unit of a terminal according to the seventh embodiment. FIG. 23 is a diagram showing an example of a screen displayed on a display unit of a terminal according to a seventh modified example. FIG. 23 is a diagram showing an example of a screen displayed on a display unit of a terminal according to a seventh modified example. FIG. 23 is a diagram showing an example of a screen displayed on a display unit of a terminal according to an eighth embodiment;

<System Configuration>
FIG. 1A is a diagram illustrating an example of a system configuration of a communication system 1 according to the present embodiment.
In the communication system 1, as an example and not a limitation, a server 10 and one or more terminals 20 (terminal 20A, terminal 20B, terminal 20C, . . . ) are connected via a network 30.

The server 10 has a function of providing a messaging service, which is an example of a chat service, to the terminal 20 owned by the user via the network 30. The server 10 can also be expressed as a messaging server, a messaging service server, etc. In this embodiment, the user of the server 10 is a messaging service provider, by way of example and not limitation.
The number of servers 10 and the number of terminals 20 connected to the network 30 are not limited.

The terminal 20 (terminal 20A, terminal 20B, terminal 20C, ...) may be any information processing terminal capable of implementing the functions described in each embodiment. Examples of the terminal 20 include, but are not limited to, a smartphone, a mobile phone (feature phone), a computer (such as, but not limited to, a desktop, laptop, tablet, etc.), a media computer platform (such as, but not limited to, a cable or satellite set-top box, a digital video recorder), a handheld computer device (such as, but not limited to, a PDA (personal digital assistant), an email client, etc.), a wearable device (such as, but not limited to, a glasses-type device, a watch-type device, etc.), a VR (Virtual Reality) terminal, a smart speaker (a device for voice recognition), or other types of computers or communication platforms. The terminal 20 may also be expressed as an information processing terminal.

The configurations of the terminals 20A, 20B, and 20C can be the same as one another, for example and not for limitation. In addition, if necessary, the terminal used by the user X may be expressed as the terminal 20X, and the user information in a predetermined service associated with the user X or the terminal 20X may or may not be expressed as the user information X.
The user information is information of a user associated with an account used by the user in a specific service. The user information includes, but is not limited to, information associated with a user, such as the user's name, the user's icon image, the user's age, the user's sex, the user's address, the user's hobbies and interests, and the user's identifier, which is input by the user or given by a specific service, and may be any one of these, or a combination of these, or may not be the same.

The network 30 serves to connect one or more terminals 20 and one or more servers 10. In other words, the network 30 refers to a communication network that provides a connection path so that the above-mentioned various devices can connect and then send and receive data.

One or more portions of network 30 may or may not be wired or wireless. Network 30 may include, by way of example and not limitation, an ad hoc network, an intranet, an extranet, a virtual private network (VPN), a local area network (LAN), a wireless LAN (WLAN), a wide area network (WAN), a wireless WAN (WWAN), a metropolitan area network (MAN), a portion of the Internet, a portion of the Public Switched Telephone Network (PSTN), a cellular network, integrated service digital networks (ISDN), wireless LAN, long term evolution (LTE), code division multiple access (CDMA), Bluetooth, satellite communications, or the like, or a combination of two or more thereof. Network 30 may include one or more networks 30.

The server 10 (not limited to, but an example of a server, information processing device, or information management device) has a function of providing a predetermined service (messaging service in the embodiment described below) to the terminal 20. The server 10 may be any device that is an information processing device that can realize the functions described in each embodiment. The server 10 includes, not limited to, a server device, a computer (not limited to, but an example of, a desktop, laptop, tablet, etc.), a media computer platform (not limited to, but an example of, a cable, satellite set-top box, digital video recorder, etc.), a handheld computer device (not limited to, but an example of, a PDA, email client, etc.), or other types of computers or communication platforms. The server 10 may also be expressed as an information processing device. When there is no need to distinguish between the server 10 and the terminal 20, the server 10 and the terminal 20 may or may not be expressed as information processing devices.

[Hardware (HW) configuration of each device]
The HW configuration of each device included in the communication system 1 will be described.

(1) Terminal Hardware Configuration FIG. 1A shows an example of the hardware configuration of the terminal 20.
The terminal 20 includes a control unit 21 (CPU: central processing unit), a storage unit 28, a communication I/F 22 (interface), an input/output unit 23, a clock unit 29A, and a position calculation information detection unit 29B. The HW components of the terminal 20 are connected to each other via a bus B, for example and not for limitation. It is not essential that the HW configuration of the terminal 20 includes all of the components. For example and not for limitation, the terminal 20 may or may not be configured such that individual components or multiple components are removable.

The communication I/F 22 transmits and receives various data via the network 30. The communication may be performed either wired or wirelessly, and any communication protocol may be used as long as mutual communication can be performed. The communication I/F 22 has a function of performing communication with various devices such as the server 10 via the network 30. The communication I/F 22 transmits various data to various devices such as the server 10 according to instructions from the control unit 21. The communication I/F 22 also receives various data transmitted from various devices such as the server 10 and transmits it to the control unit 21. The communication I/F 22 may also be simply referred to as a communication unit. When the communication I/F 22 is configured with a physically structured circuit, it may also be referred to as a communication circuit.

The input/output unit 23 includes a device for inputting various operations to the terminal 20, a device for outputting the results of processing performed by the terminal 20, etc. The input/output unit 23 may be an integrated input unit and an output unit, or may be separate input unit and output unit, or it may not be the case.

The input unit is realized by any one or combination of any type of device that can accept input from a user and transmit information related to the input to the control unit 21. Examples of the input unit include, but are not limited to, a touch panel, a touch display, hardware keys such as a keyboard, a pointing device such as a mouse, a camera (operation input via video images), and a microphone (operation input by voice).

The output unit is realized by any one or a combination of any type of device capable of outputting the results of processing by the control unit 21. Examples of the output unit include, but are not limited to, a touch panel, a touch display, a speaker (audio output), a lens (for example, but not limited to, 3D (three dimensions) output or hologram output), a printer, etc.

By way of example only, the input/output unit 23 includes, by way of example and not limitation, a display unit 24, a sound input unit 25, a sound output unit 26, and an imaging unit 27.

The display unit 24 is realized by any one of all types of devices or a combination thereof that can display according to the display data written to the frame buffer. Examples of the display unit 24 include, but are not limited to, touch panels, touch displays, monitors (for example, but not limited to, liquid crystal displays and organic electroluminescence displays (OELDs)), head mounted displays (HDMs), projection mapping, holograms, devices capable of displaying images, text information, etc. in air (which may or may not be a vacuum). Note that these display units 24 may or may not be capable of displaying display data in 3D.

The sound input unit 25 is used to input sound data (including voice data; the same applies below). The sound input unit 25 includes a microphone and the like.
The sound output unit 26 is used to output sound data and includes a speaker and the like.
The imaging unit 27 is used to obtain image data (including still image data and moving image data; the same applies below). The imaging unit 27 includes a camera and the like.

If the input/output unit 23 is a touch panel, the input/output unit 23 and the display unit 24 may be arranged facing each other and have approximately the same size and shape.

The clock unit 29A is a built-in clock of the terminal 20, and outputs time information (timekeeping information). The clock unit 29A is configured to include, for example and not limitation, a clock that uses a quartz oscillator. The clock unit 29A can also be expressed as a timekeeping unit or a time information detection unit, for example and not limitation.

The clock unit 29A may or may not have a clock that conforms to the NITZ (Network Identity and Time Zone) standard or the like.

The position calculation information detection unit 29B is a functional unit that detects (measures) information (hereinafter referred to as "position calculation information") necessary for the control unit 21 to calculate (measure) the position of its own terminal 20. The position calculation information detection unit 29B can also be expressed as a position calculation sensor unit, for example and not by way of limitation.

The position calculation information detection unit 29B includes, by way of example and not limitation, a satellite positioning sensor (satellite positioning unit) which is a sensor or unit for calculating the position of the terminal 20 using a satellite positioning system such as GPS (Global Positioning System), an inertial measurement sensor (inertial measurement unit (IMU (Inertial Measurement Unit))) which is a sensor or unit for calculating the position of the terminal 20 using an inertial navigation system, a UWB positioning sensor (UWB positioning unit) which is a sensor or unit for calculating the position of the terminal 20 using UWB (Ultra Wide Band), etc.

The satellite positioning unit includes, by way of example and not limitation, an RF receiving circuit that converts RF (Radio Frequency) signals, including positioning satellite signals transmitted from positioning satellites and received by an antenna (not shown), into digital signals, and a baseband processing circuit that performs correlation calculation processing or the like on the digital signals output from the RF receiving circuit to capture the positioning satellite signals, and outputs information such as satellite orbit data and time data extracted from the positioning satellite signals as information for position calculation.

The inertial measurement unit has an inertial sensor that detects information required to calculate the position of the terminal 20 by inertial navigation calculation. Examples of inertial sensors include, but are not limited to, a three-axis acceleration sensor and a three-axis gyro sensor, and output the acceleration detected by the acceleration sensor and the angular velocity detected by the gyro sensor as information for position calculation.

The UWB positioning unit includes, by way of example and not limitation, an ultra-wideband RF (Radio Frequency) receiving circuit that converts an ultra-wideband RF signal, including an ultra-wideband pulse signal for positioning transmitted from a positioning beacon and received by an antenna not shown, into a digital signal, and a relative position calculation processing circuit that calculates the relative position between the terminal 20 and the positioning beacon based on the digital signal output from the ultra-wideband RF receiving circuit.
As an example and not by way of limitation, the UWB positioning unit may or may not cause the terminal 20 to function as a positioning beacon by transmitting an ultra-wideband RF signal including an ultra-wideband pulse signal for positioning from an antenna not shown.

By way of example and not limitation, the control unit 21 calculates the position of its own terminal 20 at regular or specific timings based on the position calculation information detected by the position calculation information detection unit 29B. The terminal position is referred to as the "terminal position", and the calculated terminal position is referred to as the "calculated terminal position". The control unit 21 may, but may not, associate the calculated terminal position with the date and time when the calculated terminal position is calculated and store it in the storage unit 28 as calculated terminal position history data.

The control unit 21 has circuitry that is physically structured to execute the functions realized by the code or instructions contained in the program, and is realized, for example and not by way of limitation, by a data processing device built into hardware. As such, the control unit 21 may or may not be described as a control circuit.

The control unit 21 may include, by way of example and not limitation, a central processing unit (CPU), a microprocessor, a processor core, a multiprocessor, an application-specific integrated circuit (ASIC), and a field programmable gate array (FPGA).

The storage unit 28 has a function of storing various programs and various data required for the operation of the terminal 20. The storage unit 28 includes, by way of example and not limitation, various storage media such as a hard disk drive (HDD), a solid state drive (SSD), a flash memory, a random access memory (RAM), and a read only memory (ROM). In addition, the storage unit 28 may or may not be expressed as a memory.

The terminal 20 stores the program P in the memory unit 28, and by executing this program P, the control unit 21 executes the processing of each unit included in the control unit 21. In other words, the program P stored in the memory unit 28 causes the terminal 20 to realize each function executed by the control unit 21. Furthermore, this program P may or may not be expressed as a program module.

(2) HW Configuration of Server FIG. 1A shows an example of the HW configuration of the server 10. As shown in FIG.
The server 10 includes a control unit 11 (CPU), a storage unit 15, a communication I/F 14 (interface), an input/output unit 12, and a clock unit 19. The components of the HW of the server 10 are connected to each other via a bus B, for example and not for limitation. It is not essential that the HW of the server 10 includes all components as the configuration of the HW of the server 10. For example and not for limitation, the HW of the server 10 may or may not be configured such that individual components or multiple components are removable.

The control unit 11 has circuitry that is physically structured to execute the functions realized by the code or instructions contained in the program, and is realized, for example and not by way of limitation, by a data processing device built into hardware.

The control unit 11 is typically a central processing unit (CPU), but may also be a microprocessor, a processor core, a multiprocessor, an ASIC, or an FPGA, or may not be such a unit. In this disclosure, the control unit 11 is not limited to these.

The storage unit 15 has a function of storing various programs and various data required for the operation of the server 10. The storage unit 15 is realized by various storage media such as a HDD, SSD, and flash memory. However, in this disclosure, the storage unit 15 is not limited to these. Furthermore, the storage unit 15 may or may not be expressed as a memory.

The communication I/F 14 transmits and receives various data via the network 30. The communication may be performed either wired or wirelessly, and any communication protocol may be used as long as mutual communication can be performed. The communication I/F 14 has a function of performing communication with various devices such as the terminal 20 via the network 30. The communication I/F 14 transmits various data to various devices such as the terminal 20 according to instructions from the control unit 11. The communication I/F 14 also receives various data transmitted from various devices such as the terminal 20 and transmits it to the control unit 11. The communication I/F 14 may also be simply referred to as a communication unit. When the communication I/F 14 is composed of a physically structured circuit, it may also be referred to as a communication circuit.

The input/output unit 12 includes a device for inputting various operations to the server 10, a device for outputting the results of processing performed by the server 10, and the like. The input/output unit 12 may be an integrated input unit and an output unit, or may be separate input unit and output unit, or it may not be the case.

The input unit is realized by any one or combination of all types of devices that can accept input from a user and transmit information related to the input to the control unit 11. The input unit is typically realized by hardware keys such as a keyboard, or a pointing device such as a mouse. Note that the input unit may or may not include a touch panel, a camera (operation input via video images), or a microphone (operation input by voice), but is not limited to these.

The output unit is realized by any one or a combination of any type of device capable of outputting the results of processing by the control unit 11. Examples of the output unit include, but are not limited to, a touch panel, a touch display, a speaker (sound output), a lens (for example, but not limited to, 3D (three dimensions) output or hologram output), a printer, etc.

By way of example only, the input/output unit 12 includes a display unit 13, by way of example and not by way of limitation.

The display unit 13 is realized by a display or the like. The display is typically realized by a monitor (for example, but not limited to, a liquid crystal display or an organic electroluminescence display (OELD)). The display may or may not be a head mounted display (HDM) or the like. These displays may or may not be capable of displaying display data in 3D. In the present disclosure, displays are not limited to these.

The clock unit 19 is a built-in clock of the server 10, and outputs time information (timekeeping information). The clock unit 19 is configured to include, for example and not limitation, an RTC (Real Time Clock) as a hardware clock, a system clock, etc. The clock unit 19 can also be expressed as a timekeeping unit or a time information detection unit, for example and not limitation.

(3) Others The server 10 stores the program P in the storage unit 15, and by executing this program P, the control unit 11 executes the processes of each unit included in the control unit 11. In other words, the program P stored in the storage unit 15 causes the server 10 to realize each function executed by the control unit 11. This program P may or may not be expressed as a program module.
The same applies to other devices.

In each embodiment of the present disclosure, the description will be given assuming that the CPU of the terminal 20 and/or the server 10 executes the program P to realize the present invention.
The same applies to other devices.

The control unit 21 of the terminal 20 and/or the control unit 11 of the server 10 may or may not realize each process by a CPU having a control circuit, but may also realize each process by a logic circuit (hardware) formed in an integrated circuit (IC (Integrated Circuit) chip, LSI (Large Scale Integration)), or a dedicated circuit. These circuits may or may not be realized by one or more integrated circuits, and the multiple processes shown in each embodiment may or may not be realized by one integrated circuit. Furthermore, LSIs may be called VLSIs, super LSIs, ultra LSIs, etc., depending on the degree of integration. Therefore, the control unit 21 may or may not be expressed as a control circuit.
The same applies to other devices.

In addition, the program P (which may be, for example and not by way of limitation, a software program, computer program, or program module) of each embodiment of the present disclosure may or may not be provided in a state stored in a computer-readable storage medium. The storage medium is capable of storing the program P in a "non-transitory tangible medium." The program P may or may not be for realizing part of the functions of each embodiment of the present disclosure. Furthermore, the program P may or may not be a so-called difference file (difference program) that can realize the functions of each embodiment of the present disclosure in combination with a program P already recorded in a storage medium.

The storage medium may include one or more semiconductor-based or other integrated circuits (ICs) (such as, by way of example and not limitation, a field programmable gate array (FPGA) or an application specific IC (ASIC)), a hard disk drive (HDD), a hybrid hard drive (HHD), an optical disk, an optical disk drive (ODD), a magneto-optical disk, a magneto-optical drive, a floppy diskette, a floppy disk drive (FDD), a magnetic tape, a solid state drive (SSD), a RAM drive, a secure digital card, or a drive, any other suitable storage medium, or a suitable combination of two or more of these. The storage medium may be volatile, non-volatile, or a combination of volatile and non-volatile, as appropriate. It should be noted that the storage medium is not limited to these examples and may be any device or medium capable of storing the program P. Also, the storage medium may or may not be referred to as a memory.

The server 10 and/or the terminal 20 can realize the functions of the multiple functional units shown in each embodiment by reading out a program P stored in a storage medium and executing the read out program P.
The same applies to other devices.

Furthermore, the program P of the present disclosure may or may not be provided to the server 10 and/or the terminal 20 via any transmission medium capable of transmitting a program (such as a communication network or broadcast waves). The server 10 and/or the terminal 20 executes the program P downloaded via the Internet or the like, by way of example and not of limitation, to realize the functions of the multiple functional units shown in each embodiment.
The same applies to other devices.

In addition, each embodiment of the present disclosure may be realized in the form of a data signal in which the program P is embodied by electronic transmission.
At least a part of the processing in the server 10 and/or the terminal 20 may or may not be realized by cloud computing consisting of one or more computers.
At least a part or all of the processing in the terminal 20 may or may not be performed by the server 10. In this case, at least a part or all of the processing of each functional unit of the control unit 21 of the terminal 20 may or may not be performed by the server 10.
At least a part or all of the processing in the server 10 may or may not be performed by the terminal 20. In this case, at least a part or all of the processing of each functional unit of the control unit 11 of the server 10 may or may not be performed by the terminal 20.
Unless explicitly stated, the judgment configuration in the embodiments of the present disclosure is not essential, and a specified process may or may not be executed when the judgment condition is satisfied, or a specified process may or may not be executed when the judgment condition is not satisfied.

The programs disclosed herein are implemented using, by way of example and not limitation, scripting languages such as ActionScript and JavaScript (registered trademark), compiler languages such as Objective-C and Java (registered trademark), and markup languages such as HTML5.

<Example>
An embodiment to which the method of the present disclosure is applied will be described below.
Note that the embodiments and modifications described in this specification are merely examples of the present invention, and the present invention is not limited to the embodiments and modifications described in this specification.

A possible method for switching talk rooms on terminal 20 is to temporarily exit the currently displayed talk room, and then move to a screen for selecting the next talk room to be displayed based on a user's operation of temporarily exiting the currently displayed talk room and then moving to a screen for selecting the next talk room to be displayed. Then, based on the user's selection (designation) of the next talk room to be displayed, the next talk room is displayed. As a non-limiting example, the method is to temporarily exit the currently displayed talk room, and then select a talk room from a talk room list screen that displays a list of talk rooms.
However, this method requires complicated operations to switch talk rooms, which is insufficient in terms of user convenience.

Below, we will explain an embodiment in which the terminal 20 and the server 10 perform processing and control according to the user's purpose and motivation, using a messaging service as an example.

Furthermore, messaging services (MS) (including IMS) can be considered as one form of social networking services (SNS). Therefore, messaging services and social networking services may or may not be distinguished. In other words, social networking services may or may not include messaging services.

In the embodiment described below, the messaging service will be described as an instant messaging service (IMS) that transmits and receives simple messages between multiple devices via the server 10. In addition, the application for implementing this messaging service will be called a "messaging application" and will be illustrated and described as a "Messaging App" as appropriate.

In addition to simple text, messages can include various types of information that can be sent and received between devices, such as, but not limited to, image information (including at least one of still image information and moving image information), sound information (including voice information), operation information (including buttons, icons, etc.), specific information, communication information, and link information (URL, URI, etc.).

The text may include, by way of example and not limitation, at least one of national characters, extended characters, machine-dependent characters, numbers, symbols, graphics, and signs, all of which are represented by character codes.
The text does not have to include at least one of the above characters, extended characters, machine-dependent characters, numbers, symbols, figures, and signs, and may include other text.

The image information (image) may include, by way of example and not limitation, at least one of various types of image information such as icons, buttons, stamps, emojis, and banner images.

In this specification, information sent and received via messaging services is referred to as a "message," but this may also be expressed as "content" in a broader sense.
In this case, the content may include, by way of example and not limitation, various types of information that can be transmitted and received between devices, such as text, image information (including at least one of still image information and moving image information), sound information (including voice information), operation information (including buttons, icons, etc.), specific information, communication information, and link information (URL, URI, etc.).
Also, by way of example and not limitation, the message may be text, and the "content" may include both the message and information other than the message.

The messaging service herein is an example of a chat service.
The messaging service is configured to allow users to chat using chat rooms.
In the following description, a UI (User Interface) or GUI (Graphical User Interface) that allows each user to view content transmitted and received between terminals of multiple users will be referred to as a "talk room" as appropriate.
Note that the talk room may or may not be called a chat room.

In addition, talk rooms can include, by way of example and not limitation, one-to-one user talk rooms (hereinafter referred to as "one-to-one talk rooms") as well as talk rooms for groups including multiple users (hereinafter referred to as "group talk rooms"). In this case, a talk room refers to a UI or GUI that allows users in a group to view content sent and received between each terminal of a group including multiple users.

Additionally, chat rooms may include, by way of example and not limitation, chat rooms (hereinafter referred to as "open chat rooms") for anonymous chatting (hereinafter referred to as "open chat") separate from a user's account.
In this embodiment, by way of example and not limitation, in an open chat room of a messaging service, a user can create a group that anyone can join and chat with users other than those registered as friends.

In addition, in this specification, a user of the terminal 20 who uses the messaging service (messaging application) is referred to as a "general user", and an account of this general user is referred to as a "general account".
In contrast, a user of an OA provider device or OA provider terminal (not shown) that uses the messaging service is referred to as an "OA provider," and the account of this OA provider is referred to as an "official account."
In other words, in this specification, messaging service accounts include general accounts and official accounts.

As an example and not a limitation, an OA business having an official account can send and receive messages with other devices via the server 10 using an OA business device or an OA business terminal, just like a terminal 20 having a general account. As an example and not a limitation, just like when a message is sent to another terminal 20, a message sent from a terminal 20 of a user having a general account to an OA business device or an OA business terminal is also delivered to the OA business device or the OA business terminal via the server 10. Then, the history of the message is displayed as a talk room or the like on the display unit (not shown) of the OA business device or the OA business terminal.

In addition, talk rooms can include, by way of example and not limitation, a "one-to-one talk room" that is a one-to-one user talk room, a "group talk room" for a group that includes multiple users, and, by way of example and not limitation, a talk room with an OA provider (hereinafter referred to as an "OA talk room").

In the embodiment described below, "talk room information" is exemplified as information used to move (transition) from the first talk room to the second talk room.
The talk room information is information about a talk room associated with a talk room in the messaging service.
This talk room information may include, by way of example and not limitation, information associated with the talk room, such as the name of the talk room (text information), an icon image of the talk room (image information), and an identifier (identification information) of the talk room, which are entered by a user or assigned by a messaging service, and may be any one of these, or a combination of two or more of these, or may not be the case.

The talk room information is information selected (specified) by the user of the terminal 20, and is information for moving from the first talk room to the second talk room and displaying the second talk room. Therefore, the talk room information may or may not be expressed as information for selecting a talk room, information for specifying a talk room, destination talk room information, etc.

In the embodiment described below, roughly two types of talk room information are exemplified.
(1) Icon-type chat room information (hereinafter referred to as “icon-type chat room information”)
(2) Switcher-type talk room information (hereinafter referred to as “switcher-type talk room information”)

In addition, in the following embodiments, by way of example and not limitation, talk information is stored and managed in the memory unit 15 of the server 10, but talk information added and updated in the server 10 is transmitted to the terminal 20, and the talk information is also stored and held separately from the server 10 in the memory unit 28 of the terminal 20.

In this case, due to issues such as the memory capacity of server 10, the talk information stored and managed by server 10 can be deleted from the memory unit 15 of server 10 after a certain period of time (not limited to a certain period of time, but several weeks) has elapsed, for example and not by way of limitation.
On the other hand, the talk information data stored in the memory unit 28 of the terminal 20 can be retained and not deleted unless a deletion request is made by the user of the terminal 20 via the input unit.

However, this is merely an example and is not limited to this form.
As an example and not a limitation, talk information may not be retained on terminal 20, and talk information stored and managed on server 10 may be acquired by terminal 20 and displayed, or it may not be necessary to do so.

In the following description, it is assumed that the chat service is provided and managed by the server 10, and that the terminal 20 transmits and receives content via the server 10, but the present invention is not limited to this.
The present invention is not limited to a system including the terminal 20 and the server 10, but may also be applied to a system that does not include the server 10. This is, by way of example and not of limitation, the following system.
A system (distributed system) in which the functions of the server 10 are provided to the terminal 20. This can be realized, for example and not by way of limitation, by using blockchain technology.
A system in which terminals 20 perform wireless communication with each other. This can be realized, for example and without limitation, by performing communication in a peer-to-peer (P2P) system using a short-range wireless communication technology such as Bluetooth.

As a non-limiting example, if a system is applied in which terminals 20 communicate wirelessly with each other, the terminals 20 can transmit and receive content directly to each other via wireless communication without going through the server 10.

First Example
The first embodiment is an embodiment in which (1) icon-type talk room information is applied.
In the first embodiment, when a first chat room (a currently displayed talk room, as an example and not a limitation) is displayed on the display unit 24, the terminal 20 moves from the first chat room to a second chat room (a talk room to be displayed next, as an example and not a limitation) and displays a first display (icon-type talk room information, as an example and not a limitation) regarding displaying the second chat room on the display unit 24. Then, based on an input to this first display, the terminal 20 performs a first process (a process of switching talk rooms, as an example and not a limitation) regarding displaying the second chat room by the control unit 21 of the terminal 20.
By way of example and not limitation, at least one of the first chat room and the second chat room may be an open chat room as discussed above.
The contents described in the first embodiment are applicable to any of the other embodiments and other modified examples.

As mentioned above, an icon is a type of image information (image). Therefore, icon-type talk room information is a type of image-type talk room information and is an example of image-type talk room information.

In the following, a case where icon-type talk room information is applied is illustrated as an example, but is not limited to this.
As another example, and not a limitation, text-type talk room information represented by text such as characters may be applied.

[Functional configuration of each device]
(1) Server FIG. 1B is a diagram showing an example of functions realized by the control unit 11 of the server 10 in this embodiment.
The control unit 11 includes, as a functional unit, a messaging application management processing unit 111 for executing messaging application management processing in accordance with a messaging application management processing program 151 stored in the storage unit 15, for example and not for limitation.

FIG. 1-3 is a diagram showing an example of information stored in the storage unit 15 of the server 10 in this embodiment.
The memory unit 15 stores, by way of example and not limitation, a messaging application management processing program 151 executed as a messaging application management processing, account registration data 153, friend registration data 154, an account management database 155, and a talk information management database 159.

The account registration data 153 is registration data relating to an account of an application (messaging application in this example), and an example of the data configuration is shown in FIG. 1-4.
In the account registration data 153, for example and not by way of limitation, a user name, an application ID, and other registration information are stored in association with each other.

The user name is the name of the user of the terminal 20 who uses the application, and as a non-limiting example, the name registered by the user of the terminal 20 when using the application is stored.

The application ID is information used to identify an application account, or the account itself.
Note that the number of accounts owned by a single user is not limited to one, and a user may own multiple accounts.

This application ID is preferably a value unique to each account, and as a non-limiting example, a unique value (proper value) is set and stored by the server 10 for each account.
The application ID is information associated with the terminal 20 or the user of the terminal 20, and is an example of information related to the terminal or information related to the user of the terminal.

Other registration information may include, by way of example and not limitation, various types of information such as identification information for identifying the terminal 20, the telephone number (terminal telephone number) of the terminal 20, an email address (terminal email address), and authentication information such as passwords (login password, authentication password, etc.) used for various authentications in the application.

The identification information for identifying the terminal 20 may be, for example and not for limitation, a terminal ID (for example and not for limitation, an International Mobile Equipment Identity (IMEI)).
Furthermore, the identification information for identifying the user of the terminal 20 may be, for example and without limitation, an application ID. Note that a "user ID" may or may not be used instead of the application ID.

Furthermore, if the application allows only one account to be registered per terminal 20, then, as a non-limiting example, "identification information for identifying the terminal 20 = identification information for identifying the user of the terminal 20 = application ID" can be used.

Also, by way of example and not limitation, it may or may not be possible to assign multiple terminal IDs to one user ID.

Also, instead of various IDs such as application IDs, it is possible to apply a method of managing accounts using information such as terminal telephone numbers.
In this case, instead of storing ID information such as an application ID in the account registration data 153 , information such as a terminal telephone number can be stored in the account registration data 153 .

In addition to the information exemplified above, various other information can also be stored as other registered information.
For example and not for limitation, personal information and attribute information (for example and not for limitation, age, sex, place of residence, occupation, hobbies, etc.) of the user of the terminal 20 may be stored. For example and not for limitation, the user of the terminal 20 may be prompted to input and register this information when using the messaging application.

Also, by way of example and not limitation, a history of location information of the terminal 20 (hereinafter referred to as "terminal location information") may be stored.
In this case, as a non-limiting example, the terminal 20 transmits the terminal position information calculated based on the position calculation information detected by the position calculation information detection unit 29B to the server 10 at regular intervals. Alternatively, the terminal 20 transmits the terminal position information to the server 10 in response to a request from the server 10. The server 10 can then store the history of the terminal position information received and acquired from the terminal 20 in this manner as terminal position history data.

The friend registration data 154 is management data for friends in an application (messaging application in this example), and an example of the data configuration is shown in FIG. 1-5.
In the friend registration data 154, for example and not by way of limitation, an application ID, a friend application ID, and a friend username are stored in association with each other.

In the application ID, the application ID stored and registered in the account registration data 153 is stored.
The friend application ID stores the application ID of an account that has registered the account with this application ID as a friend.
The friend user name stores a user name that is stored and registered in the account registration data 153 in association with the friend application ID.

Note that since the friend user name can be identified from the friend application ID by referring to the account registration data 153, the friend user name may not be stored in the friend registration data 154.

The account management database 155 is a database for managing accounts stored in the account registration data 153, and by way of example and not limitation, the account management data is stored as management data for each application ID stored in the account registration data 153.
Each account management data includes, by way of example and not limitation, an application ID.

The talk information management database 159 is a database for managing talk information of each account of the messaging application.
The accounts include the general accounts mentioned above as well as, by way of example and not limitation, the official accounts mentioned above.

By way of example and not limitation, chat information refers to a series of chat contents including content (by way of example and not limitation, messages) exchanged between accounts (including one-to-one and group), and the history of content exchanges (history of sending and receiving content).

By way of example and not limitation, the server 10 receives content sent from the terminal 20 that sent the content, and performs a process of adding the received content to the corresponding chat room. Specifically, the server 10 adds the received content to the talk information of the corresponding chat room in the talk information management database 159 (talk storage unit) and updates it. The server 10 then sends the additions to the chat room (information about the content added to the chat room) to the terminal 20 of the destination user. This updates the content of the chat room displayed on the display unit 24 of the terminal 20.

(2) Terminal FIG. 1-6 is a diagram showing an example of functions realized by the control unit 21 of the terminal 20 in this embodiment.
The control unit 21 includes, as a functional unit, a messaging application processing unit 211 for executing messaging application processing according to a messaging application processing program 281 stored in the storage unit 28, for example and not by way of limitation.

FIG. 1-7 is a diagram showing an example of information stored in the storage unit 28 of the terminal 20 in this embodiment.
The memory unit 28 stores, by way of example and not limitation, a messaging application processing program 281 executed as messaging application processing, an application ID 283, friend data 284, terminal data 285, user data 287, and a talk-related information database 289.

In the application ID 283, the application ID of the messaging application of the own terminal 20 or the user of the own terminal 20 is stored.
It should be noted that the application ID 283 may or may not be capable of storing multiple application IDs.

Friend data 284 stores the application IDs of accounts that have the account of application ID 283 registered as a friend.
In addition, since the friend information is stored and managed on the server 10 side as the friend management data 154, the friend data 284 may not be stored in the storage unit 28 of the terminal 20. In this case, the terminal 20 can acquire the friend information from the server 10.

The terminal data 285 stores various data related to the terminal 20 itself.
As an example and not as a limitation, this may include terminal position history data, which is data on the history of terminal position information calculated by the control unit 21 of the terminal 20 based on the position calculation information detected by the position calculation information detection unit 29B.

The user data 287 stores various data relating to the user of the terminal 20 .
As a non-limiting example, personal information and attribute information of the user of the terminal 20 (such as age, sex, place of residence, occupation, hobbies, etc.) may be stored.
It is not necessary to store this information in the memory unit 28 of the terminal 20, and as a non-limiting example, the personal information and attribute information data of the user registered on the server 10 side may be obtained from the server 10.

The talk-related information database 289 is a database in which talk information and information related to this talk information (hereinafter collectively referred to as "talk-related information").
This talk related information database 289 includes the following data, by way of example and not limitation:
- Talk history data, which is data on the history of talk information corresponding to the account corresponding to application ID 283 (the user's own terminal 20, or the account of the user of the user's own terminal 20) - Talk room data in which information related to the talk room is stored - Talk room display history data, which is data on the history of the display of the talk room - Talk room operation history data, which is data on the history of operations in the talk room It is not necessary to store all of this data in the memory unit 28 of the terminal 20, and as an example and not a limitation, some of the data may be stored and managed by the server 10, and the terminal 20 may obtain information from the server 10.

<Talk room pattern table>
In this specification, the first talk room may be, by way of example and not limitation, a one-to-one talk room, a group talk room, or an OA talk room, and the second talk room may be, by way of example and not limitation, a one-to-one talk room, a group talk room, or an OA talk room.

An example of a talk room pattern in which the first talk room is a one-to-one talk room, a group talk room, or an OA talk room, and the second talk room is a one-to-one talk room, a group talk room, or an OA talk room, is described with reference to the talk room pattern table shown in Figure 1-8.

The talk room pattern table shows the talk room pattern name and the corresponding first and second talk rooms.

The talk room pattern name is a name that functions as identification information to identify the talk room pattern.

The talk room pattern name "PA-01" is a pattern in which the first talk room and the second talk room are both "one-to-one talk rooms."

The talk room pattern name "PA-02" is a pattern in which the first talk room is a "one-to-one talk room" and the second talk room is a "group talk room."

The talk room pattern name "PA-03" is a pattern in which the first talk room is a "one-to-one talk room" and the second talk room is an "OA talk room."

The talk room pattern name "PA-04" is a pattern in which the first talk room is a "group talk room" and the second talk room is a "one-to-one talk room."

The talk room pattern name "PA-05" is a pattern in which the first talk room and the second talk room are both "group talk rooms."

The talk room pattern name "PA-06" is a pattern in which the first talk room is a "group talk room" and the second talk room is an "OA talk room."

The talk room pattern name "PA-07" is a pattern in which the first talk room is an "OA talk room" and the second talk room is a "one-to-one talk room."

The talk room pattern name "PA-08" is a pattern in which the first talk room is an "OA talk room" and the second talk room is a "group talk room."

The talk room pattern name "PA-09" is a pattern in which the first talk room and the second talk room are both "OA talk rooms."

<Display screen>
Here, as an example and not a limitation, the talk room pattern is a talk room pattern name "PA-01" in which the first talk room is a one-to-one talk room and the second talk room is also a one-to-one talk room, and an example display screen for the second talk room after switching talk rooms will be described.

(1) First Display Screen Example FIG. 1-9 illustrates an example of a display screen in which the display of icon-type talk room information is erased when the talk room is switched.

Figure 1-9 shows an example of the transition of screens displayed on the display unit 24 of user A.A's terminal 20A.

The name of the messaging application is displayed in the center of the top of the screen as "Messaging App." In addition, the icon image and user name of the messaging application of the user of this terminal 20 (user A.A. in this example) are displayed in the top right of the screen.

In FIG. 1-9, as an example and not as a limitation, an icon-type talk room information display area ER1 is provided at the bottom of the screen of the currently displayed talk room, where one or more icon-type talk room information pieces (not as a limitation, but as an example of the first display) are displayed, allowing the user to select the talk room to move to.

In addition, on the left screen of FIG. 1-9, below the area at the top of the screen where the name of the messaging application and the like are displayed, a talk room name display area CLR containing the name of the talk room (hereinafter referred to as the "talk room name") is provided, by way of example and not limitation, as a type of area indicating which page (in this example, the talk room) in the messaging application is currently displayed. The talk room name display area CLR can also be considered an area indicating the page (in this example, the talk room) in the messaging application where the user is currently located.

In this example, the talk room name display area CLR displays, by way of example and not limitation, characters (in this example, "B.B") indicating that the talk room is a room in which user A.A can talk with user B.B.
Below that, a talk area is configured for user A.A and user B.B to talk in a dialogue format, with messages from the other user B.B displayed on the left side of the screen and messages from user A.A displayed on the right side of the screen.

The icon-type talk room information displayed in the icon-type talk room information display area ER1 displays, by way of example and not limitation, users who are registered as friends by the user of terminal 20A (user A.A.).
In this example, by way of example and not limitation, multiple icon-type talk room information are displayed, including a user name "User C.C." and a corresponding icon, and a user name "User D.D." and a corresponding icon.

The screen in the center of FIG. 1-9 shows, by way of example and not limitation, a state in which the user name "C.C." or the icon corresponding to the user name is tapped among multiple icon-type chat room information. In this case, the display switches from the chat room (first chat room) with user B.B. as the currently displayed partner to the chat room (second chat room) with user C.C. As a result, by way of example and not limitation, the screen shown on the right of FIG. 1-9 is displayed.

This screen is a talk room in which user A.A can talk with user C.C., and by way of example and not limitation, the talk room name display area CLR displays characters (in this example, "C.C") indicating that this is the talk room for the user name "C.C."

In addition, by way of example and not limitation, multiple pieces of icon-type chat room information have been erased from the icon-type chat room information display area ER1 at the bottom of the screen.

(2) Second Display Screen Example FIG. 1-10 illustrates an example of a display screen in which the display of icon-type talk room information continues when the talk room is switched.

1-10 is a diagram showing an example of a transition of a screen displayed on the display unit 24 of the terminal 20A of the user A.
The left screen in FIG. 1-10 is an example of a screen of a first chat room in which user A.A is talking to user B.B.
In this example, the icon-type talk room information display area ER1 displays, by way of example and not limitation, users who are registered as friends by the user of terminal 20A (user A.A.).
Specifically, by way of example and not limitation, multiple icon-type talk room information are displayed, including a user name "C.C" and a corresponding icon, a user name "D.D" and a corresponding icon, and a user name "E.E" and a corresponding icon.

The screen in the center of FIG. 1-10 shows, by way of example and not limitation, a state in which the user name "C.C." or the icon corresponding to the user name is tapped among multiple icon-type chat room information. In this case, the display switches from the chat room (first talk room) with user B.B. as the currently displayed partner to the chat room (second talk room) with user C.C. As a result, by way of example and not limitation, the screen shown on the right of FIG. 1-10 is displayed.

This screen is a talk room in which user A.A can talk with user C.C., and by way of example and not limitation, the talk room name display area CLR displays characters (in this example, "C.C") indicating that this is the talk room for the user name "C.C."

In addition, the icon-type talk room information display area ER1 at the bottom of the screen displays multiple pieces of icon-type talk room information, including, by way of example and not limitation, the user name "User D.D" and the corresponding icon, and the user name "User B.B" and the corresponding icon.

In addition, in any of the other embodiments and variations described below, when the talk room is switched, a configuration may be adopted in which the display of the icon-type talk room information continues, or a configuration may be adopted in which the display of the icon-type talk room information is erased.

<Processing>
FIG. 11 is a flowchart showing an example of the flow of processing executed by the control unit 21 of the terminal 20 in this embodiment.
Note that the process described below is merely an example of a process for implementing the method of the present disclosure, and is not limited to this process. Other steps may be added to this process, or some steps may be omitted (deleted).
This also applies to each of the flowcharts (processes) described below.

First, the control unit 21 of the terminal 20 causes the display unit 24 to display the first talk room based on the user's input to the input unit (A110).

Then, the control unit 21 of the terminal 20 causes the display unit 24 to display the icon-type talk room information (A120). In this case, as one method, but not by way of limitation, the server 10 determines users who are registered as friends by the user of the terminal 20 based on the friend management data 154, and transmits information such as the latest user names and icon images from the server 10 to the terminal 20. The control unit 21 of the terminal 20 can then display the icon-type talk room information based on the information received from the server 10.

Alternatively, information such as the user names and icon images of users who are registered as friends may be stored and saved in the memory unit 28 of the terminal 20, and the control unit 21 of the terminal 20 may read this information from the memory unit 28 and display the icon-type talk room information, but this is not essential.

The control unit 21 of the terminal 20 may display two or more pieces of icon-type talk room information on the display unit 24, or may display one piece of icon-type talk room information on the display unit 24.

Next, the control unit 21 of the terminal 20A determines, by way of example and not limitation, whether or not the user of the terminal 20 has made an input to the icon-type talk room information via the input unit (A130).
If there is no input for the icon-type talk room information (A130: NO), the control unit 21 of the terminal 20 ends the process.

On the other hand, if there is input for icon-type talk room information (A130: YES), the control unit 21 of the terminal 20 controls the display to switch from the first talk room displayed on the display unit 24 to the talk room (second talk room) corresponding to the icon-type talk room information input in A130.
Then, the control unit 21 of the terminal 20 ends the process.

As with the first talk room, after the second talk room is displayed, icon-type talk room information may or may not be displayed in the second talk room as well.

Effects of the First Embodiment
In this embodiment, the terminal 20 displays a first talk room (not limited to, an example of the first chat room) including the user of the terminal 20 on the display unit 24. The terminal 20 also displays icon-type talk room information (not limited to, an example of a first display relating to moving from the first chat room displayed on the display unit to the second chat room and displaying the second chat room on the display unit) corresponding to a second talk room (not limited to, an example of the second chat room) to be moved (transitioned) on the display unit 24. The terminal 20 then shows a configuration in which the control unit 21 performs a process (not limited to, an example of a first process) of switching from the displayed first talk room to the second talk room based on an input to the displayed icon-type talk room information (not limited to, an example of an input to the terminal on which the first display is displayed).
As an example of an effect of the embodiment obtained by such a configuration, it is possible to easily move from the first chat room to the second chat room based on an input to the terminal on which the first display is displayed, which eliminates the need for a complicated operation to switch chat rooms, thereby improving user convenience.

In this case, the icon-type talk room information can be displayed in the first talk room.
As an example of an effect of an embodiment obtained by such a configuration, it is possible for a user of a terminal to check a movable second chat room while displaying the first chat room.

In this case, the terminal 20 can perform a process of displaying the second talk room on the display unit 24 based on an input such as a tap operation on the icon-type talk room information displayed in the first talk room (not limited to this, but an example of an input to the first display).
As an example of an effect of an embodiment obtained by such a configuration, a user of a terminal can easily display a second chat room by making a second input to the first display while a first chat room is displayed.

Second Example
The second embodiment relates to a method for determining a destination chat room candidate (a second chat room to be a destination candidate).
The contents described in the second embodiment are applicable to any of the other embodiments and other modified examples.
Furthermore, the same components as those already mentioned are given the same reference numerals and will not be described again.

In this embodiment, a case will be described as an example in which the terminal 20 performs a process of determining a destination talk room candidate (hereinafter, referred to as a “destination talk room candidate determination process”).
Specifically, in this embodiment, the control unit 21 of the terminal 20 acquires various information (not limited to, an example of the first information) acquired based on input by the user of the terminal 20 to the input unit, and various information (not limited to, an example of the first information) already stored in the memory unit 28, and determines a candidate destination talk room based on the acquired information.

Alternatively, the terminal 20 acquires various pieces of information (not limited to this, but an example of the first information) stored and managed in the server 10 from the server 10. Then, the control unit 21 of the terminal 20 may or may not determine a candidate destination talk room based on the information acquired from the server 10.
Among the information used to determine destination talk room candidates (information necessary to determine destination talk room candidates), for information that is not stored in the memory unit 28 of the terminal 20 but is stored in the memory unit 15 of the server 10, the terminal 20 can obtain the information from the server 10 and then determine the destination talk room candidate.

<Table for deciding destination chat room candidates>
The destination talk room candidate determination table is a table that is referenced when the destination talk room candidate determination process is executed. FIG. 2-1 shows an example of the table configuration of the destination talk room candidate determination table.

Determining a candidate destination chat room can include, in addition to determining the destination chat room, by way of example and not limitation, proposing (suggesting) the determined destination chat room to the user.

In the table for determining destination talk room candidates, by way of example and not limitation, a category number which is the number of a category for determining destination talk room candidates, a number which is the number of a destination talk room candidate included in the category of this category number, a destination talk room candidate of this number, and a destination talk room candidate possibility which indicates whether or not this destination talk room candidate can be a destination talk room candidate are stored in association with each other.

It should be noted that this table is merely an example and is not limiting.
It is not necessary to store all of the above information in association with one another, and some of the information may not be stored.
Also, for ease of understanding, a "Category No." column is provided here, but this column does not necessarily have to be provided.
Furthermore, the destination talk room candidates may be determined by a program rather than by using the above table.
This also applies to the tables described in the other embodiments.

The destination chat room candidate eligibility is determined based on the corresponding destination chat room candidate. A "Yes (Yes)" is assigned to rooms that can be destination chat rooms, and an "No (No)" is assigned to rooms that cannot be destination chat rooms.
In this example, for No. "SP03-6", "SP04-2B", and "SP05-1B", "X (not possible)" is set as the destination talk room candidate, and "O (possible)" is set for the other conditions.

Below is a detailed explanation of each of the destination chat room candidates and how they are determined.

<Category No. "SP01">
Category No. "SP01" is a category of "number of displays, number of taps", and includes conditions No. "SP01-1" and "SP01-2" as examples, but are not limited thereto.
The number of displays may or may not correspond to the frequency of display, and the number of taps may or may not correspond to the frequency of tapping.
In addition, when the terminal 20 is a personal computer, the number of taps (tap frequency) can be read as the number of clicks (click frequency).

For No. "SP01-1,""talk rooms that have been displayed the most within a set time period" are defined as the talk room candidates to which the user is to move.
The set time can be, for example and without limitation, set in advance at the terminal 20 side or the server 10 side any time.
By way of example and not limitation, if a relatively short period of time (by way of example and not limitation, within a few hours) is set, a talk room that has been displayed a large number of times within the set period of time may be a talk room that the user currently has a high need to use, and therefore will be determined as a candidate destination talk room.
On the other hand, by way of example and not limitation, if a relatively long period of time (by way of example and not limitation, in days) is set, a talk room that has been displayed many times within the set period of time may be a talk room that the user uses frequently or frequently on a daily basis, and therefore will be determined to be a candidate destination talk room.

In determining the destination talk room candidates, as a non-limiting example, the terminal 20 can obtain the number of times that the talk rooms were displayed within a set time period stored in the talk room display history data of the talk-related information database 289, and determine the destination talk room candidates in order of the number of times.

For No. “SP01-2,” “talk rooms whose talk room information has been tapped many times within a set time period” are set as destination talk room candidates. In this case, the set time period can also be set arbitrarily.
As an example and not as a limitation, when a relatively short period of time (for example and not as a limitation, a period of within a few hours) is set, a talk room whose talk room information has been tapped a large number of times within the set period of time is determined to be a candidate destination talk room, because there is a possibility that this talk room information will be tapped again by the user of terminal 20 within a short period of time, and the talk room corresponding to that talk room information will be displayed.
On the other hand, by way of example and not limitation, if a relatively long period of time (by way of example and not limitation, a time in days) is set, a talk room whose talk room information is tapped many times within the set period is likely to be a talk room that the user uses frequently or frequently on a daily basis, and therefore will be determined to be a candidate destination talk room.

In determining the candidate destination talk rooms, by way of example and not limitation, the terminal 20 can obtain the number of times that the talk room information was tapped within a set time period stored in the talk room operation history data of the talk-related information database 289, and determine the candidate destination talk rooms in order of the number of times.

These conditions are, by way of example and not limitation, an example of conditions regarding the use of chat rooms by users of terminals.
Moreover, information such as the number of displays (display frequency) and the number of taps (tap frequency) is an example of information related to the user of the terminal and information related to the use of chat rooms by the user of the terminal.

<Category No. "SP02">
Category No. "SP02" is a category of "information on currently displayed talk room", and includes, by way of example and not limitation, destination talk room candidates No. "SP02-1" and "SP02-2".

For No. “SP02-1”, “talk rooms related to the context of the currently displayed talk room” are defined as the talk room destination candidates.
"Context in the displayed talk room" means, by way of example and not limitation, the context or back and forth determined based on content (by way of example and not limitation, text content, image content, audio content, etc.) sent by the user of terminal 20 in the talk room, and content received from a user other than the user of terminal 20 (the other user in the case of a "one-to-one talk room," a member of a group in the case of a "group talk room," or an OA provider in the case of an "OA talk room," hereinafter collectively referred to as the "other user").
If a talk room is related to the context of the currently displayed talk room, it means that the user is highly interested in the talk room and there is a possibility that the user will request to display this talk room, so it will be selected as a candidate for the destination talk room.

In determining the candidate destination talk room, by way of example and not limitation, the terminal 20 can determine the context based on the content stored in the talk history data in the talk-related information database 289, and determine the candidate destination talk room related to the determined context.

As a non-limiting example, if it is determined that a conversation about travel is taking place in a chat room, a travel-related chat room may be determined as a candidate destination chat room.

For No. “SP02-2”, “talk rooms related to other users in the currently displayed talk room” is defined as a talk room candidate to which the user should move.
By way of example and not limitation, "other users in the displayed talk room" refers to users in the talk room other than the user of the terminal 20. This "other users" includes the other user in a "one-to-one talk room", group members in a "group talk room", and the OA provider in an "OA talk room".
This means that a talk room related to another user in the currently displayed talk room is highly relevant to the user of terminal 20 and there is a possibility that the user will be asked to display this talk room, so it is determined to be a candidate for the destination talk room.

In determining the candidate destination talk rooms, by way of example and not limitation, the terminal 20 may obtain information related to talk rooms to which other users belong that is stored in the friend data 284, and determine the candidate destination talk rooms.

<Category No. "SP03">
Category No. "SP03" is a category of "attribute information of other talk rooms," and includes, by way of example and not limitation, destination talk room candidates No. "SP03-1" to "SP03-6."

For No. "SP03-1,""talk rooms with new messages" are specified as a candidate for the destination talk room.
A "talk room with new messages" refers to, by way of example and not limitation, a talk room that has received a new message.
A chat room containing new messages has a high viewing priority for the user and there is a possibility that the user will be asked to display this chat room, so this means that the chat room will be determined as a candidate destination chat room.

In determining the candidate destination talk room, by way of example and not limitation, the terminal 20 can obtain the presence or absence of new messages stored in the talk history data of the talk-related information database 289 and determine the candidate destination talk room.

The chat room in which the user is mentioned is defined as a candidate for the destination chat room for the user No. "SP03-2."
The "talk room in which I am mentioned" refers, by way of example and not limitation, to a talk room in which a message addressed to me (the user of the terminal 20) has been received.
This means that a chat room in which you are mentioned has a high viewing priority for the user and there is a possibility that you will be asked to display this chat room, so it will be selected as a candidate destination chat room.

In determining the candidate destination talk room, by way of example and not limitation, the terminal 20 can obtain the presence or absence of messages mentioning the user stored in the talk history data of the talk-related information database 289 and determine the candidate destination talk room.

For No. "SP03-3," "chat rooms with unread messages" are set as the destination chat room candidate.

Here, "read" can be defined as the opposite of "unread".
As a condition for determining that a message has been read (hereinafter referred to as a "read condition"), any of the following conditions may be applied, by way of example and not by way of limitation.
(A) A message is displayed.
(B) A certain amount of time (no set limit, but a few seconds to about 10 seconds) has passed since the message was displayed.
(C) After the message is displayed, the displayed message is tapped (clicked).
(D) After the message was displayed, a reply was made to the message.
(E) If the message is a video message, the video has been played.
(F) In the case where the message is a moving image message, a certain period of time (not limited to a certain period of time, for example, a few seconds to about 10 seconds) has elapsed since the moving image was played.

In this case, the "unread" state may be defined, by way of example and not limitation, as not meeting the read conditions listed above.
The "unread" state is one type of state in which the user has not yet viewed the message (content).

The "talk room with unread messages" refers to, by way of example and not by way of limitation, a talk room with messages in the above unread state.
A chat room containing unread messages has a high viewing priority for the user, and there is a possibility that the user will be asked to display this chat room, so this means that the chat room will be determined as a candidate destination chat room.

The destination talk room candidate may or may not be determined based on the number of unread messages (hereinafter, referred to as the "unread number").
As a non-limiting example, a talk room with a number of unread messages equal to or greater than a specified or set number (as a non-limiting example, the number of unread messages is 10 or more) may or may not be determined to be a candidate destination talk room.

On the other hand, chat rooms with an extremely large number of unread messages (for example, but not limited to, chat rooms with 30 or more unread messages) may not be selected as candidate destination chat rooms. This is because there is a possibility that the user has left the chat room without viewing it intentionally.

In addition, when displaying chat room information corresponding to a candidate destination chat room with unread messages, information that allows the user to identify the number of unread messages (for example, but not limited to, a number corresponding to the number of unread messages, an image for identifying the number of unread messages, etc.) may be displayed in a predetermined position (for example, but not limited to, the upper right corner of the chat room information), or it is not necessary to do so.

In determining the candidate destination talk room, by way of example and not limitation, the terminal 20 can obtain the presence or absence and number of unread messages stored in the talk history data of the talk-related information database 289 to determine the candidate destination talk room.

Information such as the number of unread messages is an example, but not a limitation, of information regarding the viewing of content displayed in the second chat room by users of the terminal.

In No. "SP03-4,""talk rooms registered in favorites" are defined as the talk room candidates to which the user can move.
"Talk rooms registered as favorites" refers, by way of example and not limitation, to talk rooms that the user of terminal 20 has registered as favorites in a messaging service in which the user of terminal 20 can register any talk room as a favorite.
A chat room that is registered as a favorite is considered to be important to the user and there is a possibility that the user will request to display this chat room, so this chat room will be determined as a candidate for the destination chat room.

In this embodiment, the talk room that the user of the terminal 20 has registered in his/her favorites has been shown as an example of a talk room candidate destination for No. "SP03-4", but the present invention is not limited to this.
As a non-limiting example of a candidate destination talk room for No. "SP03-4", in a case where the messaging application is configured to allow the user of terminal 20 to pin any talk room, the talk room may be one that the user of terminal 20 has pinned.
"Pinning a chat room" is a type of function that allows you to pin a frequently used chat room to a specific position on the screen (for example, but not limited to, the top of the screen), by way of example and not by way of limitation.

In determining the candidate destination talk room, by way of example and not limitation, the terminal 20 can obtain information on whether or not a talk room stored in the talk room data of the talk-related information database 289 is registered as a favorite, and use that information to determine the candidate destination talk room.

For No. "SP03-5", "talk rooms in a folder" are defined as the destination talk room candidates.
"Talk rooms in a folder" refers, by way of example and not limitation, to talk rooms that a user of terminal 20 has placed in a folder in a messaging service that allows the user of terminal 20 to divide any talk rooms into folders.
A chat room that is in a folder means that the chat room is highly important to the user and there is a possibility that the user will request to display the chat room, so the chat room will be determined as a candidate for the destination chat room.

In this embodiment, the messaging application has a "folder" function as a type of function that allows a user to organize arbitrary chat rooms, by way of example and not by way of limitation, and the folder can be named as desired by the user, by way of example and not by way of limitation.
Since users can place chat rooms of their choice in folders with names of their own choosing, multiple chat rooms can be organized to suit the user, improving user convenience.
Specifically, users can clearly organize their chat rooms by placing chat rooms related to their work (one-to-one chat rooms, group chat rooms, OA chat rooms, etc.) in a folder named "Work-related," and chat rooms related to personal matters unrelated to their work (family, friends, hobbies, etc.) (one-to-one chat rooms, group chat rooms, OA talk rooms, etc.) in a folder named "Private."

Note that, for example and not limitation, predetermined attribute information is set for this folder, and for example and not limitation, the folder may have a function of automatically dividing chat rooms into folders. The predetermined attribute information of a folder may be, for example and not limitation, "contains only chat rooms with unread messages" or "contains only OA chat rooms", etc.

In determining the candidate destination talk room, by way of example and not limitation, the terminal 20 can obtain information as to whether or not a talk room stored in the talk room data of the talk-related information database 289 is in a folder, and determine the candidate destination talk room.

For No. “SP03-6”, “a talk room set to hidden” is set as a destination talk room candidate. In the condition for No. “SP03-6”, “No (x)” is set as the destination talk room candidate.
"A talk room that is set to hidden" means, by way of example and not limitation, a talk room that the user of terminal 20 has set to hidden in a messaging service in which the user of terminal 20 can set any talk room to hidden.
A chat room that is set to hidden may be one that the user does not want to display, and therefore will not be selected as a candidate destination chat room.

In determining the candidate destination talk room, by way of example and not limitation, the terminal 20 can obtain information as to whether or not the talk room stored in the talk room data in the talk-related information database 289 is set to hidden, and determine the candidate destination talk room.

<Category No. "SP04">
Category No. "SP04" is a category of "user attribute information," and includes, by way of example and not limitation, destination talk room candidates No. "SP04-1,""SP04-2A," and "SP04-2B."

In No. "SP04-1,""talk rooms related to the user's hobbies and interests" are defined as the destination talk room candidates.
By way of example and not limitation, a "talk room related to the user's hobbies and preferences" is meant a talk room related to the type of talk room of an official account of an OA business that the user of terminal 20 has already registered as a friend of. By way of example and not limitation, this includes a case where, when the talk room type of an official account of an OA business that the user of terminal 20 has already registered as a friend of (Cafe A, as an example and not limitation), the talk room of an official account of another OA business (Cafe B, as an example and not limitation) is determined as a candidate destination talk room as a talk room related to the talk room.
This means that a chat room related to the user's hobbies and preferences is likely to match the user's hobbies and preferences, and there is a possibility that the user will be asked to display this chat room, so it will be determined as a candidate destination chat room.

In determining the candidate destination talk room, by way of example and not limitation, the terminal 20 may obtain information related to the type of talk room of the official account of the OA operator stored in the friend data 284, and determine the candidate destination talk room.

For No. “SP04-2A”, “talk rooms related to the user's location information” are defined as the destination talk room candidates.
A "talk room associated with the user's location information" refers, by way of example and not limitation, to a talk room associated with location information of a terminal capable of acquiring the location information of the terminal 20. As an example and not limitation, this includes acquiring location information of the user of the terminal 20, and determining, as a candidate destination talk room, an OA talk room of an official account of an OA operator of a store within a predetermined range (for example and not limitation, within 500 km) of the location information of the terminal 20.
Chat rooms related to the user's location information are expected to be of high interest to the user, and there is a high probability that these chat rooms will be displayed, which improves user convenience and means that they will be suggested as candidate chat rooms to move to.

In determining the candidate destination talk room, by way of example and not limitation, the terminal 20 can acquire position information detected by the position calculation information detection unit 29B and determine the candidate destination talk room.

For No. “SP04-2B”, “talk rooms related to the user's location information” are defined as the destination talk room candidates.
For example and not for limitation, when location information of the user of terminal 20 is acquired and the location information of terminal 20 is outside a predetermined range (for example and not for limitation, when the user is more than 100 km away from home), the user may be outside the usual range of activities that would normally be considered to be working, i.e., not working (spending leisure time), and therefore this includes cases where a work-related chat room is not determined as a candidate destination chat room.
The talk room in this example may be of low priority to the user, so it may not be determined as a destination talk room candidate.

<Category No. "SP05">
Category No. "SP05" is an "other" category, and includes, by way of example and not limitation, destination talk room candidates No. "SP05-1A,""SP05-1B," and "SP05-2."

For No. "SP05-1A,""work-related chat rooms on weekdays" are defined as the destination chat room candidates.
"Work-related talk rooms on weekdays" refers, by way of example and not limitation, to group talk rooms made up of work-related members of the workplace during weekdays (Monday to Friday) when the user of terminal 20 is likely to be at work.
If it is a weekday, a work-related talk room is considered to be of high importance to the user during the weekday period and is likely to be displayed, so this means that the talk room is determined to be a candidate for the destination talk room.

In determining the candidate destination talk room, by way of example and not by way of limitation, the terminal 20 can acquire clock information (timekeeping information) output by the clock unit 29A, and by way of example and not by way of limitation, the terminal 20 can acquire information as to whether or not the talk room stored in the talk room data in the talk-related information database 289 is a work-related talk room, and can determine the candidate destination talk room.

For No. "SP05-1B,""work-related chat rooms on holidays" are defined as the destination chat room candidates.
"Work-related talk rooms on holidays" refers, by way of example and not limitation, to group talk rooms made up of work-related members of the workplace during holidays (Saturdays and Sundays) when the user of terminal 20 is considered not to be at work.
When it is a holiday, work-related talk rooms are considered to be less important to the user during the holiday period and are less likely to be displayed, so they can be prevented from being selected as candidate destination talk rooms.

In determining the candidate destination talk room, by way of example and not by way of limitation, the terminal 20 can acquire clock information (timekeeping information) output by the clock unit 29A, and by way of example and not by way of limitation, the terminal 20 can acquire information as to whether or not the talk room stored in the talk room data in the talk-related information database 289 is a work-related talk room, and can determine the candidate destination talk room.

In No. “SP05-2”, “chat rooms related to another app when specific information is received in that app” are defined as the destination chat room candidates.
By "other app" is meant, by way of example and not limitation, an application for implementing a service other than a messaging application for implementing a messaging service. By way of example and not limitation, the other app may be a "weather application" for implementing a weather forecast service (hereinafter referred to as "weather service").

Furthermore, the "specific information" can be, for example and not limitation, information that is useful to a user of the terminal 20. For example and not limitation, when the above-mentioned weather application is applied, the specific information can be information in the weather application that the probability of precipitation within one hour is 50% or more.

In addition, "chat room related to the app" means, by way of example and not by way of limitation, an OA chat room of an official account of an OA business that provides a service realized by another app. By way of example and not by way of limitation, when the above-mentioned weather application is applied, "chat room related to the app" may be, by way of example and not by way of limitation, an OA chat room of an official account of an OA business that provides a weather application.

In this way, when specific information is received in another app, chat rooms related to that app are deemed important to the user and may be displayed, so they are determined to be candidates for destination chat rooms.

<Display screen>
2-2, 2-3, and 2-4 are diagrams showing an example of transition of screens displayed on the display unit 24 of the terminal 20A of the user A.

(1) First example of display screen Figure 2-2 is a diagram showing an example of a display screen when "a talk room related to the context of the currently displayed talk room" No. "SP02-1" is determined as the first destination talk room candidate in the first destination talk room candidate determination process.
Here, as an example and not as a limitation, we will show a case where, based on the term "travel" being present in a message sent by the user of terminal 20 in the first talk room, a talk room of an official account of a travel-related OA business (as examples and not a limitation, "domestic travel,""overseastravel,""hot spring inn," etc.) is determined to be a candidate destination talk room related to the term "travel."

The name of the messaging application is displayed in the center of the top of the screen as "Messaging App." In addition, the icon image and user name of the messaging application of the user of this terminal 20 (user A.A. in this example) are displayed in the top right of the screen.

In the screen on the left of FIG. 2-2, the talk room name display area CLR displays, by way of example and not limitation, text (in this example, "B.B") indicating that this is a talk room in which user A.A can talk with user B.B.

Below that, a talk area is configured for user A.A and user B.B to talk in a dialogue format, with messages from the other user B.B displayed on the left side of the screen and messages from user A.A displayed on the right side of the screen.
In this example, a message MS1 containing the term "travel" sent by user A.A is displayed.

In addition, at the bottom of the talk area, there is provided an icon-type talk room information display area ER1 that displays one or more icon-type talk room information (not limited to this, an example of the first display) that is configured to allow the user to select the talk room to move to.

The icon-type talk room information displayed in the icon-type talk room information display area ER1 displays, by way of example and not limitation, icon-type talk room information corresponding to the destination talk room candidate determined in the first destination talk room candidate determination process.
In this example, by way of example and not limitation, multiple icon-type chat room information is displayed, including the user name "Domestic Travel" and a corresponding icon, the user name "Overseas Travel" and a corresponding icon, and the user name "Hot Spring Inn" and a corresponding icon.

In addition, in this example, since the displayed icon-type talk room information corresponds to a talk room of an official account of an OA provider, information that allows a user to identify that the talk room is an official account of an OA provider is displayed in association with the icon-type talk room information. Specifically, as a non-limiting example, an icon containing the letters "OA" is displayed superimposed on the lower right corner of the icon-type talk room information.

The screen in the center of FIG. 2-2 shows, by way of example and not limitation, a state in which the OA company name "Domestic Travel" or the icon corresponding to it has been tapped among multiple icon-type chat room information. In this case, the display switches from the chat room (first chat room) in which the other user is user B.B. to a chat room (second chat room) in which the other user is the OA company "Domestic Travel". As a result, by way of example and not limitation, the screen shown on the right of FIG. 2-2 is displayed.

This screen is a chat room screen for user A.A to talk with the OA company "Domestic Travel", and by way of example and not limitation, the chat room name display area CLR displays text indicating that it is a chat room for the OA company name "Domestic Travel" (in this example, an icon containing the letters "OA" and "Domestic Travel").

This chat room screen displays information indicating that the "20% off domestic travel" service is available, such as a description, a registered URL, and a banner image with a link based on the registered URL.

As a non-limiting example, when a user performs an operation (for example, a tap operation) on the above-mentioned registered URL or banner image, a request to add a registered message associated with the registered URL is made from the terminal 20 to the server 10.

In addition, the icon-type talk room information display area ER1 at the bottom of the screen displays multiple icon-type talk room information including, by way of example and not limitation, the OA business name "Overseas Travel" and its corresponding icon, and the OA business name "Hot Spring Inn" and its corresponding icon.

(2) Second Example of Display Screen FIG. 2-3 is a diagram showing an example of a display screen when the “talk room with unread messages” No. “SP03-3” is determined as the destination talk room candidate in the first destination talk room candidate determination process.
Here, a case will be illustrated in which a talk room with the number of unread messages equal to or greater than a set number (by way of example and not limitation, the number of unread messages is "1 or greater") is determined as a destination talk room candidate, and by way of example and not limitation, a talk room of user C.C. with the number of unread messages being "5," a talk room of user D.D. with the number of unread messages being "2," and a talk room of user E.E. with the number of unread messages being "1" are determined as destination talk room candidates.

The left screen in FIG. 2-3 is an example of a screen of a first chat room in which user A.A is talking to user B.B.
In the icon-type talk room information display area ER1, as a non-limiting example, icon-type talk room information corresponding to the destination talk room candidate determined in the first destination talk room candidate determination process is displayed.
In this example, by way of example and not limitation, multiple icon-type talk room information are displayed, including a user name "C.C" and a corresponding icon, a user name "D.D" and a corresponding icon, and a user name "E.E" and a corresponding icon.

In addition, in this example, at a specified position of each icon (as an example, not a limitation, the upper right corner of the icon-type chat room information), numerical information corresponding to the number of unread messages is displayed as information that allows the user to identify the number of unread messages, as an example, not a limitation.
Specifically, the number "5" corresponding to the number of unread messages 5 is displayed in the upper right corner of the icon corresponding to user C.C, the number "2" corresponding to the number of unread messages 2 is displayed in the upper right corner of the icon corresponding to user D.D, and the number "1" corresponding to the number of unread messages 1 is displayed in the upper right corner of the icon corresponding to user E.E.

The screen in the center of FIG. 2-3 shows, by way of example and not limitation, a state in which the user name "C.C." or the icon corresponding to the user name is tapped among multiple icon-type chat room information. In this case, the display switches from the chat room with user B.B. (first chat room) to the chat room with user C.C. (second chat room). As a result, by way of example and not limitation, the screen shown on the right of FIG. 2-3 is displayed.

This screen is a talk room in which user A.A talks with user C.C., and by way of example and not limitation, characters indicating that the talk room is for a user with the user name "C.C." (in this example, "C.C.") are displayed in the talk room name display area CLR.
Below that, a talk area is configured for user A.A and user C.C to talk in a dialogue format, with messages from the other user C.C displayed on the left side of the screen and messages from user A.A displayed on the right side of the screen.

In addition, the icon-type talk room information display area ER1 at the bottom of the screen displays, by way of example and not limitation, multiple pieces of icon-type talk room information including the user name "D.D" and its corresponding icon, and the user name "E.E" and its corresponding icon.

(3) Third example of display screen Figure 2-4 is a diagram showing an example of a display screen when "talk room related to user's hobbies and preferences" No. "SP04-1" is determined as the destination talk room candidate in the first destination talk room candidate determination process.
Here, as an example and not as a limitation, we will show a case where, based on the type of the talk room of the official account of an OA business (Cafe A, as an example and not as a limitation) that the user of terminal 20 has registered as a friend, the talk rooms of the official accounts of other OA businesses that are of the cafe type (Cafe B, Cafe C, Cafe D, etc., as examples and not as a limitation) are determined as candidate destination talk rooms related to this talk room.

In FIG. 2-4, the talk room name display area CLR displays characters (in this example, an icon including the characters "OA" and "Cafe A") indicating that the talk room is a talk room in which user A.A. can talk with an office automation service provider "Cafe A" (office automation service provider).
Below that, a talk area is configured for user A.A and OA business "Cafe A" to talk in a dialogue format, with a message from the other party, OA business "Cafe A", displayed on the left side of the screen, and a message from user A.A displayed on the right side of the screen.

This chat room screen displays advertising information indicating that a new coffee product is being released for 399 yen, including a description, a registered URL, and a banner image with a link based on the registered URL.

As a non-limiting example, when a user performs an operation (for example, a tap) on the above-mentioned registered URL or banner image, a request to add a registered message associated with the registered URL is made from the terminal 20 to the server 10.

In the icon-type talk room information display area ER1, as a non-limiting example, icon-type talk room information corresponding to the destination talk room candidate determined in the first destination talk room candidate determination process is displayed.
In this example, multiple icon-type talk room information is displayed, including the OA business name "Cafe B" and its corresponding icon, the OA business name "Cafe C" and its corresponding icon, and the OA business name "Cafe D" and its corresponding icon.

In addition, in this example, when icon-type chat room information corresponding to a chat room of an official account of an OA provider is displayed, information that allows a user to identify that it is a chat room of an official account of an OA provider (as an example, not a limitation, an icon containing the letters "OA") is displayed in a specified position (as an example, not a limitation, the lower right corner of the icon-type chat room information).

The screen in the center of FIG. 2-4 shows, by way of example and not limitation, a state in which the OA company name "Cafe B" or the icon corresponding to it has been tapped among multiple icon-type chat room information. In this case, the display switches from the chat room (first chat room) in which the currently displayed partner is user B.B. to a chat room (second chat room) in which the partner's OA company is "Cafe B Co." As a result, by way of example and not limitation, the screen shown on the right of FIG. 2-4 is displayed.

This screen is a talk room in which user A.A can talk with OA company "Cafe B Company", and by way of example and not limitation, the talk room name display area CLR displays text indicating that this is a talk room for OA company "Cafe B Company" (in this example, an icon containing the letters "OA" and "Cafe B").

This chat room screen displays information indicating that the user can receive the service "100 yen off your bill," including an explanation, a registered URL, and a banner image with a link based on the registered URL.

As a non-limiting example, when a user performs an operation (for example, a tap) on a displayed registered URL or banner image, a request to add a registered message associated with the registered URL is made from the terminal 20 to the server 10.

In addition, the icon-type talk room information display area ER1 at the bottom of the screen displays multiple icon-type talk room information including, by way of example and not limitation, the name of an office automation company "Cafe C" and its corresponding icon, and the name of an office automation company "Cafe D" and its corresponding icon.

<Processing>
In the present embodiment, when the first talk room is displayed, a destination talk room candidate determination process is executed by the terminal 20. For convenience, the destination talk room candidate determination process executed by the terminal 20 is referred to as a “first destination talk room candidate determination process.”

FIG. 2-5 is a flowchart showing an example of the flow of processing executed by the control unit 21 of the terminal 20 in this embodiment.
The same steps as those in the previously described flowcharts are given the same reference numerals and will not be described again.

After A110, the control unit 21 of the terminal 20 executes a first destination talk room candidate determination process (A115).
In the first destination talk room candidate determination process, the control unit 21 of the terminal 20 determines a destination talk room candidate based on the above-described destination talk room candidate determination table.

After that, the control unit 21 of the terminal 20 causes the display unit 24 to display icon-type talk room information corresponding to the determined destination talk room candidate (A120). That is, the control unit 21 causes the display unit 24 to display icon-type talk room information corresponding to the determined destination talk room candidate in the same manner as described in step A120 of FIG. 1-11.
Then, the control unit 21 of the terminal 20 advances the process to A130.

<Effects of the Second Example>
This embodiment illustrates a configuration in which the terminal 20 determines, via the control unit 21, a candidate destination chat room (not limited to, an example of a second chat room to move to) based on information acquired by the terminal 20 (not limited to, an example of first information).
As an example of an effect of an embodiment obtained by such a configuration, the second chat room to move to (candidate for the second chat room to move to) can be appropriately determined based on the first information acquired by the terminal.

Also in this case, the information obtained by the terminal 20 may include, by way of example and not limitation, information regarding the user of the terminal 20 .
As an example of an effect of the embodiment obtained by such a configuration, the second chat room to which the user moves can be appropriately determined based on information about the user of the terminal.

In this case, the information regarding the user of terminal 20 may include, by way of example and not limitation, information regarding the number of times a chat room is displayed (display frequency) or the number of taps (tap frequency) by the user of terminal 20 (an example of information regarding the use of chat rooms by the user of the terminal, which is not limited to this example).
As an example of the effect of the embodiment obtained by such a configuration, the second chat room to be moved to can be appropriately determined based on information regarding the use of the chat room by the user of the terminal. By determining, as the second chat room to be moved to, for example and without limitation, a chat room that has been displayed many times/frequently or a chat room whose first display has been tapped (clicked) many times/frequently, it is possible to reflect the needs of the user of the terminal in the use of the chat room, and to improve the convenience for the user.

In this case, the information regarding the user of terminal 20 may include, by way of example and not limitation, information regarding unread content and information regarding the number of unread pieces of content (an example of information regarding the user of the terminal viewing the content displayed in the second chat room, which is not limiting).
As an example of the effect of the embodiment obtained by such a configuration, the second chat room to be moved to can be appropriately determined based on information regarding the browsing of the content displayed in the second chat room by the user of the terminal. By way of example and not of limitation, by determining a chat room with unread content or a chat room with a relatively large amount of unread content as the second chat room to be moved to, it is possible to reflect the browsing status of the chat room by the user of the terminal, thereby improving the convenience for the user.

In this case, the information acquired by the terminal 20 may include information about the chat room.
As an example of an effect of the embodiment obtained by such a configuration, the second chat room to which the user moves can be appropriately determined based on information about the chat room.

In this case, the information about the chat room may include information about a message (not limited to, but an example of content) displayed in the source chat room (not limited to, but an example of a first chat room).
As an example of an effect of an embodiment obtained by such a configuration, the second chat room to move to can be appropriately determined based on information of the content displayed in the first chat room.

In this case, the source talk room is a group talk room (not limited to, but an example of a group chat room) of a group that includes the user of terminal 20 and multiple users other than the user of terminal 20, and information about the chat room can include information about the users included in this group.
As an example of an effect of an embodiment obtained by such a configuration, the second chat room to move to can be appropriately determined based on information of users included in a group that includes the user of the terminal and multiple users other than the user of the terminal.

In this case, the information regarding the talk room may be a message displayed in the second chat room, and may include content in which the user of terminal 20 is mentioned (not limited to this, but is an example of content associated with information indicating the user of the terminal).
As an example of an effect of an embodiment obtained by such a configuration, a second chat room including content displayed in the second chat room and associated with information indicating the user of the terminal can be determined as a candidate second chat room to move to.

In addition, this embodiment illustrates a configuration in which a talk room that is not determined as a candidate destination talk room (not limited to, but an example of a second chat room that is not subject to the first display) is determined based on location information of the user of terminal 20 (or terminal 20) or work information of the user of terminal 20 (not limited to, but an example of information about the user of terminal 20).
As an example of an effect of the embodiment obtained by such a configuration, it is possible to appropriately determine second chat rooms that are not to be targeted for the first display based on information about the user of the terminal. By not displaying the first display corresponding to a second chat room that the user of the terminal does not wish to display, it is possible to improve convenience for the user of the terminal.

<Second Modification Example (1)>
In the second embodiment, the destination talk room candidate determination process is executed by the terminal 20, but the present invention is not limited to this.
As an example and not a limitation, the destination talk room candidate determination process may or may not be performed by the server 10.

<Processing>
In this modification, when the first talk room is displayed, a destination talk room candidate determination process for determining a destination talk room candidate is executed by the server 10. For convenience, the destination talk room candidate determination process executed by the server 10 is referred to as a “second destination talk room candidate determination process.”

2-6 is a flowchart showing an example of the flow of processing executed by each device in this modified example. In this figure, the left side shows processing executed by the control unit 21 of the terminal 20, and the right side shows processing executed by the control unit 11 of the server 10.
Here, it is assumed that the user of the terminal 20 is already registered in the first talk room and the second talk room in the messaging application.

Note that the same steps as those in the previously described flowcharts are given the same reference numerals and will not be described again.
The same applies to the other embodiments and modifications.

After A110, the control unit 21 of the terminal 20 sends a destination talk room candidate request to the server 10 via the communication I/F 22, requesting destination talk room candidates (information on destination talk room candidates) from the server 10 (A112).

In response to this request, the control unit 11 of the server 10 executes a second destination talk room candidate determination process (S110).
In the second destination talk room candidate determination process, the control unit 11 of the server 10 determines a destination talk room candidate based on the above-described destination talk room candidate determination table.
In this case, as described above, by way of example and not limitation, the server 10 may store and manage information about the user of the terminal 20 and information about the terminal 20 in the account registration data 153, etc. In this case, the control unit 11 of the server 10 may acquire information from these data, and determine destination talk room candidates based on the acquired information in a similar manner to that of the terminal 20.

In addition, if some of the information used to determine the destination talk room candidate (information necessary to determine the destination talk room candidate) is not stored in the memory unit 15 of the server 10 but is stored in the memory unit 28 of the terminal 20, the server 10 can acquire the information from the terminal 20 and then determine the destination talk room candidate.

Next, the control unit 11 of the server 10 transmits destination talk room candidate determination information, including the destination talk room candidates determined in the second destination talk room candidate determination process, to the terminal 20 via the communication I/F 22 (S120).

When the communication I/F 22 receives the destination talk room candidate information from the server 10, the control unit 21 of the terminal 20 causes the display unit 24 to display icon-type talk room information based on the received destination talk room candidate determination information (A125). That is, in the same manner as described in step A120 of FIG. 1-11, icon-type talk room information corresponding to the destination talk room candidate included in the destination talk room candidate determination information received from the server 10 is displayed.
Then, the control unit 21 of the terminal 20 advances the process to A130.

In this process, the destination talk room candidate determination information including the determined destination talk room candidate is transmitted from the server 10 to the terminal 20, but this is not limited to the above.
As an example and not a limitation, icon-type talk room information corresponding to the determined destination talk room candidate may be transmitted from server 10 to terminal 20, and the icon-type talk room information may be displayed on display unit 24 of terminal 20.

Furthermore, there are cases where a user does not want the server 10 to refer to or use information about the terminal 20, information about the user, information about chat content between users, and the like without permission.
Therefore, as a non-limiting example, the user may be required to confirm through terms of use or the like that the information may be referenced and used on the server 10 side, and if the user consents (approves), the server 10 may be able to reference and use the information.
Also, as a non-limiting example, the server 10 may be able to use information about chat content in the above-mentioned open chat without requiring user approval.

As one example, but not by way of limitation, if it is determined that a topic about saunas is being discussed in an open chat room (first talk room), the control unit 11 of the server 10 executes a context determination process and determines that the topic is sauna. The control unit 11 of the server 10 can then determine that an open chat room with a sauna theme or an OA talk room of an OA provider of saunas, etc., is the destination talk room.

According to this modified example, the destination talk room candidates are determined by the server, so the terminal does not have to determine the destination talk room candidates, reducing the processing load on the terminal.

The above contents can also be applied to other embodiments and variations related to the display of icon-type talk room information, as well as to other embodiments and variations related to the display of switch-type talk room information, which will be described in detail later.

<Second Modification Example (2)>
In addition to the method described in the second embodiment, as a non-limiting example, a destination talk room candidate may be determined based on information input via an input unit of the terminal 20. As a non-limiting example, a destination talk room candidate may be determined based on sound information (including voice information) input from the sound input unit 25 or image information captured by the imaging unit 27.

Specifically, by way of example and not limitation, when a user name of a specific user or a group name of a specific group, or information related thereto is input by the sound input unit 25, the talk room of that user or the group talk room of that group may be determined as a destination talk room candidate. Similarly, when a specific user is imaged by the imaging unit 27, the talk room of that user or a group talk room including that user may be determined as a destination talk room candidate.

Also, as a non-limiting example, when a term related to the work of the user of terminal 20 is input from the sound input unit 25, or when an object related to the work of the user of terminal 20 is captured by the imaging unit 27, a talk room related to the work of the user of terminal 20 may be determined as a candidate destination talk room.

This can be achieved by the control unit 21 of the terminal 20 performing, by way of example and not limitation, sound recognition processing (including voice recognition processing) or image recognition processing on the input information.

<Third Example>
The third embodiment relates to conditions and timing for displaying talk room information.
The contents described in the third embodiment are applicable to any of the other embodiments and other modified examples.
Furthermore, the same components as those already mentioned are given the same reference numerals and will not be described again.

In this embodiment, an example is shown in which the terminal 20 performs a process for determining whether or not to display talk room information (hereinafter, referred to as a "talk room information display determination process").

<Chat room information display condition table>
The talk room information display condition table is a table that is referenced when the talk room information display determination process is executed, and an example of the table configuration of the talk room information display condition table is shown in FIG. 3-1.

In the talk room information display condition table, as an example and not a limitation, a condition number, which is the number of the talk room information display condition, and the talk room information display condition for this number are stored in association with each other.

Below is a detailed explanation of each chat room information display condition and how it is determined.

<Condition No. “SP11-1” to “SP11-4”>
Condition Nos. "SP11-1" to "SP11-4" are "conditions related to the first talk room."

In condition No. "SP11-1", "a specific context is detected" is defined as the talk room information display condition.
Context refers to the context, context, and relationship between the content displayed in a chat room.

One approach is to use a context-recognition algorithm so that the control unit 21 of the terminal 20 can determine when the talk has ended.

As another method, content suggesting the end of the talk can be registered in advance on the terminal 20 side or on the server 10 side, and the control unit 21 of the terminal 20 can determine the end of the talk based on the registered content.
By way of example and not limitation, specific text content such as "goodbye,""seeyou," and "got it" may be registered.

This condition means that if a specific context is detected in the first chat room, it is determined that the chat in the first chat room may have ended, so it is necessary to display the chat room information.

When determining whether or not to display this talk room information, as a non-limiting example, the determination as to whether or not to display the talk room information can be made based on the history of content stored in the talk history data of the talk-related information database 289.

Condition No. "SP11-2" defines the talk room information display condition as "a stamp is pressed consecutively a set number of times or more."
The set number of times can be, for example and without limitation, settable in advance on the terminal 20 side or the server 10 side to any number of times.

This condition means that if a stamp is pressed consecutively in the first chat room a set number of times or more (for example, not limited to, five or more times), it will determine that the chat in the first chat room may have ended and therefore will display the chat room information.

When determining whether or not to display this talk room information, as a non-limiting example, it can be determined that the talk room information should be displayed if a set number or more of stamp content have been sent consecutively from the user of one's own terminal 20 to the other user based on the content history stored in the talk history data of the talk-related information database 289.

Condition No. "SP11-3" defines the talk room information display condition as "a set time has elapsed with no message being entered."
The set time can be, for example and without limitation, set in advance at the terminal 20 side or the server 10 side any time.
This condition means that if a set time (for example, but not limited to, five minutes) has elapsed without any message being entered in the first chat room, it is determined that the talk in the first chat room may have ended, and therefore the chat room information should be displayed.

When determining whether or not to display this talk room information, by way of example and not by way of limitation, terminal 20 can acquire clock information (timekeeping information) output from clock unit 29A, and by way of example and not by way of limitation, terminal 20 can determine to display the talk room information if a set time has elapsed without any input since the most recent message was input, based on the message input history identified from the talk history data in talk-related information database 289.

Condition No. "SP11-4" defines the talk room information display condition as "a set time has elapsed without any message being sent or received."
The set time can be, for example and without limitation, set in advance at the terminal 20 side or the server 10 side any time.
This condition means that if a set time (for example, but not limited to, five minutes) has elapsed without any messages being sent or received in the first talk room, it is determined that the talk in the first talk room may have ended, and therefore the talk room information should be displayed.

When determining whether or not to display this talk room information, by way of example and not by way of limitation, terminal 20 can acquire clock information (timekeeping information) output from clock unit 29A, and by way of example and not by way of limitation, terminal 20 can determine to display the talk room information if a set time has elapsed since the most recent message was sent or received without any message being sent or received, based on the message sending and receiving history stored in the talk history data of talk-related information database 289.

<Condition No. “SP11-5” to “SP11-8”>
Condition No. "SP11-5" to "SP11-8" are "conditions related to the second talk room."

In condition No. "SP11-5", "a new message is received" is defined as the talk room information display condition.
This condition means that when a new message is received, it is determined that the talk room in which the new message is displayed is to be displayed because the talk room is likely to have a high viewing priority for the user.
In this case, by way of example and not limitation, talk room information including at least talk room information corresponding to talk rooms that satisfy this condition may be displayed.

When determining whether or not to display this talk room information, as a non-limiting example, if it is determined that a new message has been received from the server 10 via the communication I/F 22, it may be determined that the talk room information is to be displayed.

Condition No. "SP11-6" defines the talk room information display condition as "a set time has elapsed while there is a talk room in which you are mentioned."
The set time can be, for example and without limitation, set in advance at the terminal 20 side or the server 10 side any time.
This condition means that if a set time (for example, but not limited to, 10 minutes) has elapsed while there is a talk room in which the user is mentioned, it is determined that the talk room information should be displayed, because the talk room may be a talk room that has not been viewed for a while despite having a high viewing priority for the user.
In this case, by way of example and not limitation, talk room information including at least talk room information corresponding to talk rooms that satisfy this condition may be displayed.

When determining whether or not to display this talk room information, by way of example and not limitation, the terminal 20 can obtain clock information (timekeeping information) output by the clock unit 29A, and by way of example and not limitation, refer to the talk information data in the talk-related information database 289, and determine to display the talk room information if there is a message mentioning the user and a set time has elapsed since the message was received.

In condition No. “SP11-7,” the talk room information display condition is set as “a set time has elapsed in a state where there is a talk room with unread messages.” In this case, too, the set time can be set arbitrarily.
This condition means that if a set time (for example, but not limited to, 10 minutes) has elapsed while there is a talk room with unread messages, it is determined that the talk room information should be displayed, because there is a possibility that the talk room has not been viewed for a while despite having a high viewing priority for the user.
In this case, by way of example and not limitation, talk room information including at least talk room information corresponding to talk rooms that satisfy this condition may be displayed.

Note that it may be possible to determine whether or not to display the talk room information based on the number of unread messages, but this is not essential.
As an example and not as a limitation, when a talk room in which the number of unread messages is a first specified number (or a first set number) or more (as an example and not as a limitation, the number of unread messages is 10 or more) is a second specified number (or a second set number) or more (as an example and not as a limitation, 3 or more), it may or may not be determined to display the talk room information.

When determining whether or not to display this talk room information, by way of example and not limitation, terminal 20 can obtain clock information (timekeeping information) output by clock unit 29A, and by way of example and not limitation, terminal 20 can obtain the presence or absence and number of unread messages stored in the talk history data to determine whether or not to display the talk room information.

In condition No. “SP11-8,” the talk room information display condition is set as “a set time has elapsed while a talk room is registered in favorites.” In this case, too, the set time can be set arbitrarily.
As a non-limiting example, if a talk room is registered as a favorite and a set time has passed (for example, but not limited to, 10 minutes), it is possible that the talk room is important to the user but has not been viewed for a while, so it is determined that the talk room information should be displayed.
In this case, by way of example and not limitation, talk room information including at least talk room information corresponding to talk rooms that satisfy this condition may be displayed.

When determining whether or not to display this talk room information, by way of example and not limitation, the terminal 20 can obtain clock information (timekeeping information) output by the clock unit 29A, and by way of example and not limitation, the terminal 20 can obtain information as to whether or not a talk room stored in the talk room information data of the talk-related information database 289 is registered as a favorite, and use that information to determine whether or not to display the talk room information.

In condition No. “SP11-9,” the talk room information display condition is set as “a set time has elapsed while there is a talk room in the folder.” In this case, too, the set time can be set arbitrarily.
This condition means that if a set time (for example, but not limited to, 10 minutes) has elapsed while there is a talk room in the folder, it is determined that the talk room information should be displayed, because it may be a talk room that has not been viewed for a while despite being highly important to the user.
In this case, by way of example and not limitation, talk room information including at least talk room information corresponding to talk rooms that satisfy this condition may be displayed.

When determining whether or not to display this talk room information, by way of example and not limitation, the terminal 20 can obtain clock information (timekeeping information) output by the clock unit 29A, and by way of example and not limitation, the terminal 20 can obtain information as to whether or not a talk room stored in the talk room information data of the talk-related information database 289 is in a folder, and can then determine whether or not to display the talk room information.

<Display screen>
3B is a diagram showing an example of a transition of a screen displayed on the display unit 24 of the terminal 20A of the user A.

Here, we will explain an example of the display screen that appears when it is determined in the talk room information display determination process that the talk room information is to be displayed based on the fact that the condition No. "SP11-2" of "the stamp is pressed consecutively a set number of times or more" is met as the talk room information display condition.
In this example, it is determined that the talk room information is to be displayed if the stamp is pressed consecutively a set number of times or more (for example, five times or more, but not limited to this) in the first talk room.

In this example, it is assumed that in the first destination talk room candidate determination process, the "talk room that was displayed many times within a set time" with No. "SP01-1" is determined as the destination talk room candidate. Specifically, it is assumed that in the first destination talk room candidate determination process, by way of example and not limitation, the talk rooms that were displayed many times within a set time (one hour as an example and not limitation) (as examples and not limitation, a talk room for talking with user C.C, a talk room for talking with user D.D, and a talk room for talking with user E.E) are determined as the destination talk room candidates.

In the left screen of FIG. 3-2, the talk room name display region CLR displays characters (in this example, "B.B") indicating that this is a talk room in which user A.A can talk with user B.B.
Below that, a talk area is configured for user A.A and user B.B to talk in a dialogue format, with messages from the other user B.B displayed on the left side of the screen and messages from user A.A displayed on the right side of the screen.

In the left screen of Figure 3-2, the chat room information display condition has not been met, so icon-type chat room information is not displayed.

The central screen in FIG. 3-2 shows, by way of example and not limitation, a state in which a stamp has been received once from user B.B. Specifically, stamp ST1 is displayed as the first stamp received from user B.B.

It is assumed that four stamps are subsequently received consecutively from user B.B. Specifically, stamp ST4 and stamp ST5 are displayed as the fourth and fifth stamps out of the five stamps consecutively received from user B.B.
In this case, five stamps have been received in a row from the other user, user B.B., and the chat room information display condition is met. As a result, the screen shown on the right in FIG. 3-2 is displayed, by way of example and not limitation.

In this case, based on the fact that the talk room information display condition (in this example, condition No. "11-2") is met, the icon-type talk room information display area ER1 at the bottom of the screen displays multiple pieces of icon-type talk room information, including, by way of example and not limitation, the user name "User C.C" and its corresponding icon, the user name "User D.D" and its corresponding icon, and the user name "User E.E" and its corresponding icon.

<Processing>
In this embodiment, when the first talk room is displayed and a first destination talk room candidate determination process is executed to determine a destination talk room candidate, a talk room information display determination process is executed by terminal 20 to determine whether or not to display icon-type talk room information.

FIG. 3C is a flowchart showing an example of the flow of processing executed by the control unit 21 of the terminal 20 in this embodiment.
Here, it is assumed that the user of the terminal 20 is already registered in the first talk room and the second talk room in the messaging application.

After A115, the control unit 21 of the terminal 20 determines whether icon-type talk room information is being displayed in the first talk room (A116). If icon-type talk room information is being displayed (A116: YES), the control unit 21 of the terminal 20 proceeds to A130.

When icon-type talk room information is not being displayed (A116: NO), the control unit 21 of the terminal 20 executes a talk room information display determination process (A117a).
In this talk room information display determination process, the control unit 21 of the terminal 20 determines whether or not to display icon-type talk room information based on the above-described talk room information display condition table.

When it is determined that the icon-type talk room information is not to be displayed (A118a: NO), the control unit 21 of the terminal 20 advances the process to A142.
On the other hand, when it is determined that the icon-type talk room information is to be displayed (A118a: YES), the control unit 21 of the terminal 20 advances the process to A130.

After A140, the control unit 21 of the terminal 20 determines whether the first talk room is being displayed (A142). If the first talk room is not being displayed (A142: NO), the control unit 21 of the terminal 20 ends the process.
On the other hand, if the first talk room is being displayed (A142: YES), the control unit 21 of the terminal 20 returns the process to A116.

<Effects of the Third Embodiment>
In this embodiment, a configuration is shown in which icon-type talk room information is displayed on the display unit 24 of the terminal 20 based on talk room information display conditions (not limited to, but an example of the first condition that is set).
As an example of an effect of the embodiment obtained by such a configuration, the first display can be displayed on the display unit of the terminal based on the set first condition.

In this case, the talk room information display conditions may include conditions related to the chat room (not limited to these, but an example of conditions related to the chat room).
As an example of an effect of the embodiment obtained by such a configuration, the first display can be appropriately displayed on the display unit of the terminal based on the set conditions related to the chat room.

In this case, the talk room information display conditions may include conditions regarding the context of messages displayed in the first chat room, which is the source talk room (not limited to this, but an example of a condition regarding the relationship between multiple contents displayed in the first chat room).
As an example of an effect of an embodiment obtained by such a configuration, the first display can be appropriately displayed on the display unit of the terminal based on the relationship between the plurality of contents displayed in the first chat room. By way of example and not of limitation, when it is estimated that the chat in the first chat room has ended based on the context of the plurality of contents displayed in the first chat room, the first display can be displayed on the display unit of the terminal, which enables the user of the terminal to easily move to another chat room, thereby improving user convenience.

In this case, the talk room information display conditions may include conditions such as stamps being pressed consecutively in the first chat room, which is the talk room from which the user has been moved (not limited to this, but an example of a condition regarding the input of content to be displayed in the first chat room).
As an example of the effect of the embodiment obtained by such a configuration, the first display can be appropriately displayed on the display unit of the terminal based on a condition related to the input of the content to be displayed in the first chat room. By way of example and not of limitation, when specific content is continuously input as the content to be displayed in the first chat room, it is presumed that the chat in the first chat room has ended, and the first display is displayed on the display unit of the terminal, which enables the user of the terminal to easily move to another chat room, thereby improving the convenience for the user.

In this case, the talk room information display conditions may include conditions such as receiving a new message in a talk room different from the first chat room (not limited to this, but an example of a condition regarding receiving content to be displayed in the second chat room).
As an example of an effect of an embodiment obtained by such a configuration, the first display can be appropriately displayed on the display unit of the terminal based on a condition related to the reception of the content to be displayed in the second chat room. By way of example and not of limitation, when new content is received as the content to be displayed in the second chat room, the first display can be displayed on the display unit of the terminal, which allows the user of the terminal to easily move to the chat room that received the new content, thereby improving user convenience.

<Third Modification (1)>
As in the second modified example, in the third embodiment, the determination of whether the talk room information display condition is satisfied may or may not be performed by the server 10.
In this case, the control unit 11 of the server 10 performs a talk room information display determination process based on the talk room information display condition. Then, when it is determined that the talk room information display condition is satisfied, the control unit 11 of the server 10 can notify the terminal 20 via the communication I/F 14 to display the talk room information.

<Third Modification (2)>
In the third embodiment, when the terminal 20 detects that messages are being sent and received frequently while the first talk room is displayed, the terminal 20 may or may not perform a process to display information (such as an icon image for a telephone or video call) in the first talk room suggesting to the user to switch to a telephone or video call.

In this case, a telephone function may be associated with the information suggesting a telephone call, so that when the information suggesting a telephone call is tapped, the telephone function may be invoked to enable a call with the other user. The same applies to a video call.
This also applies when the second talk room is displayed.

<Fourth Example>
The fourth embodiment relates to erasing the display of talk room information.
The contents described in the fourth embodiment are applicable to the other embodiments and the other modified examples.
Furthermore, the same components as those already mentioned are given the same reference numerals and will not be described again.

In this embodiment, an example is shown in which the terminal 20 performs a process for determining whether or not to erase the display of talk room information (hereinafter, referred to as a "talk room information display erasure determination process"). Erasing the display of talk room information can also be said to be hiding the currently displayed talk room information.

<Table of conditions for deleting chat room information>
The talk room information display deletion condition table is a table that is referenced when executing the talk room information display deletion determination process, and an example of the table configuration of the talk room information display deletion condition table is shown in FIG. 4-1.

The talk room information display deletion condition table stores, by way of example and not limitation, a condition number, which is the number of the talk room information display condition, and the talk room information display deletion condition for this number in association with each other.

Below is a detailed explanation of each chat room information display condition and how it is determined.

<Condition No. “SP12-1” to “SP12-4”>
Condition No. "SP12-1" to "SP12-4" are "conditions related to the first talk room."

Condition numbers "SP12-1" to "SP12-3" are conditions when "user input is detected while the first talk room is displayed."

Condition No. "SP12-1" defines the talk room information display deletion condition as "a tap operation, a scroll operation, or the like is detected."
As a non-limiting example, a talk room in which a tapping or scrolling operation has occurred may be a talk room in which the user currently has a high need to view the content in the talk room (first talk room), so by hiding the currently displayed talk room information, the visibility of the content in the talk room (first talk room) is improved.

When determining whether or not to erase the display of this talk room information, the terminal 20 can obtain the presence or absence of an input by the user of the terminal 20 to the input unit (for example, but not limited to, a tapping operation or a scrolling operation by the user) and determine whether or not to erase the display of the talk room information.

Condition No. "SP12-2" defines "a message input operation is detected" as the talk room information display deletion condition.
As an example and not a limitation, the talk room in which a message input operation was performed may be the talk room in which the user is currently talking, so by hiding the currently displayed talk room information, the visibility and operability of the message input section in the talk room (first talk room) are improved.

When determining whether or not to erase the display of this talk room information, the terminal 20 can obtain whether or not there has been an input by the user of the terminal 20 to the input unit (for example, and not by way of limitation, a message input operation) and determine whether or not to erase the display of the talk room information.

Condition No. "SP12-3" to "SP12-4" are conditions related to "sending and receiving messages while the first talk room is displayed."

Condition No. "SP12-3" defines "a message sending operation is detected" as the talk room information display deletion condition.
As an example and not a limitation, the talk room in which a message sending operation was performed may be a talk room in which the user is currently talking, so by hiding the currently displayed talk room information, the visibility of the sent message in the talk room (first talk room) is improved.

When determining whether to erase the display of this talk room information, the terminal 20 can obtain whether or not there is an input by the user of the terminal 20 to the input unit (for example, but not limited to, an operation to send a message) and determine whether or not to erase the display of the talk room information.

Condition No. “SP12-4” defines the talk room information display deletion condition as “a message was sent or received while the first talk room was displayed.”
By way of example and not limitation, the talk room from which the message was sent may be a talk room in which the current user needs to check the content of the message sent in the talk room (first talk room) and wait for a reply from the other user, and by way of example and not limitation, the talk room from which the message was received may be a talk room in which the current user needs to check the content of the message received in the talk room (first talk room) and wait for a reply to the other user.
Therefore, by hiding the currently displayed talk room information, the visibility of messages sent and received in the talk room (first talk room) is improved.

When determining whether or not to erase the display of this talk room information, the terminal 20 can obtain the presence or absence of new sent and received messages stored in the talk history data of the talk-related information database 289 and determine whether or not to erase the display of the talk room information.

In addition, the talk room information display deletion conditions may include conditions related to input by the other user, not limited to conditions related to input by the user of the own terminal 20.
As a non-limiting example, when the first talk room is displayed on the display 24 of one's own terminal 20 and the other user makes input to that user's terminal 20, the display of the talk room information may be erased.
In this case, the terminal 20 can, by way of example and not limitation, obtain information regarding input on the other user's terminal 20 via the server 10 and then determine whether the talk room information display conditions are met.

<Processing>
In this embodiment, when the first talk room is displayed and a first destination talk room candidate determination process is executed to determine a destination talk room candidate, a talk room information display determination process is executed by terminal 20 to determine whether to display talk room information, and a talk room information display erasure determination process is executed by terminal 20 to determine whether to erase the display of talk room information.

Figure 4-2 is a flowchart showing an example of the flow of processing executed by the control unit 21 of the terminal 20 in this embodiment.

When it is determined in A116 that the talk room information is being displayed (A1116: YES), the control unit 21 of the terminal 20 executes a talk room information display deletion determination process (A117b).
In this talk room information display deletion determination process, the control unit 21 of the terminal 20 determines whether or not to delete the display of the talk room information based on the above-described talk room information display deletion condition table.

When it is determined that the display of the talk room information should not be erased (A118b: NO), the control unit 21 of the terminal 20 advances the process to A130.
On the other hand, when it is determined that the display of the talk room information is to be erased (A118b: YES), the control unit 21 of the terminal 20 erases the display of the talk room information from the display unit 24 (A120b). Then, the control unit 21 of the terminal 20 proceeds to A142.

<Effects of the Fourth Embodiment>
This embodiment illustrates a configuration in which the terminal 20 uses the control unit 21 to control erasing the display of the talk room information displayed on the display unit 24 (not limited to, but an example of control to hide the first display) based on a talk room information display erasure condition (not limited to, but an example of a set second condition).
As an example of an effect of the embodiment obtained by such a configuration, the first display shown on the display unit of the terminal can be made non-display based on the set second condition.

In this case, the talk room information display deletion condition may include a condition regarding sending and receiving messages displayed in the first talk room, which is the source talk room.
As an example of an effect of an embodiment obtained by such a configuration, the first display shown on the display unit of the terminal can be appropriately hidden based on conditions regarding content input by the user of the terminal in the first chat room.

In this case, the talk room information display deletion condition may include a condition regarding input of a message by the user of the terminal 20 in the first talk room, which is the source talk room.
As an example of an effect of an embodiment obtained by such a configuration, the first display shown on the display unit of the terminal can be appropriately hidden based on conditions regarding content input by the user of the terminal in the first chat room.

<Fourth Modification>
As in the third modified example, in the fourth embodiment, the determination of whether the talk room information display deletion condition is satisfied may or may not be performed by the server 10.
In this case, the control unit 11 of the server 10 performs a talk room information display deletion determination process based on the talk room information display deletion condition. Then, when it is determined that the talk room information display deletion condition is satisfied, the control unit 11 of the server 10 can notify the terminal 20 via the communication I/F 14 to delete the display of the talk room information.

Fifth Example
The fifth embodiment is an embodiment related to input of talk room information.
The contents described in the fifth embodiment are applicable to the other embodiments and the other modified examples.
Furthermore, the same components as those already mentioned are given the same reference numerals and will not be described again.

In this embodiment, an example of an input for talk room information is an input (hereinafter referred to as "first input") to a display other than a user name or a corresponding icon (hereinafter referred to as "first icon") to display information about the destination talk room (second talk room) (for example, but not limited to, a preview display of the destination talk room, the reason why the destination talk room was selected as a candidate for the destination talk room, etc.).
In addition, as an example of an input for another talk room information, as described above, an input for a user name or a corresponding icon (hereinafter referred to as "second input") to switch the display from the currently displayed talk room (first talk room) to the destination talk room (second talk room) is given.

In addition, in this embodiment, when displaying talk room information, an example is shown in which a first icon (as an example, but not limited to, an icon including the character "?") is displayed in association with the talk room information as information regarding the destination talk room (second talk room) to display the reason why the destination talk room was selected as a candidate.
As an example and not as a limitation, a first icon is displayed in a predetermined position of the talk room information (as an example and not as a limitation, in the upper left corner of the talk room information).

It is also possible for the first input and the second input to be different inputs.
As a non-limiting example, when the input is an operation input, the first input may be a long press operation on the input target, whereas the second input may be a tap operation on the input target.

<Display screen>
5A is a diagram showing an example of a transition of a screen displayed on the display unit 24 of the terminal 20A of the user A.

Figure 5-1 is a diagram showing an example of a display screen when the "talk room that has been displayed the most number of times within a set time" (SP01-1) is determined as the first destination talk room candidate in the process of determining the first destination talk room candidate.
Specifically, in the process of determining the first destination talk room candidate, by way of example and not limitation, the talk rooms that have been displayed the most number of times within a set time (by way of example and not limitation, one hour) (by way of example and not limitation, a talk room for talking with user C.C., a talk room for talking with user D.D, and a talk room for talking with user E.E) are determined to be the destination talk room candidates.

In FIG. 5-1, the talk room name display area CLR displays, by way of example and not limitation, text (in this example, "B.B") indicating that this is a talk room in which user A.A can talk with user B.B.

In the talk room information display region ER1, for example and not for limitation, talk room information corresponding to the destination talk room candidate determined in the first destination talk room candidate determination process is displayed.
In this example, multiple talk room information is displayed, including a user name "C.C" and a corresponding icon, a user name "D.D" and a corresponding icon, and a user name "E.E" and a corresponding icon.

In this example, the first icon for displaying information about the destination talk room (second talk room) (for example, not by way of limitation, the reason why the destination talk room was selected) in a predetermined position of each icon (for example, not by way of limitation, the upper left corner of the talk room information) is an icon containing the character "?" in the upper left corner of the icon corresponding to user C.C, an icon containing the character "?" in the upper left corner of the icon corresponding to user D.D, and an icon containing the character "?" in the upper left corner of the icon corresponding to user E.E.

The central screen in Fig. 5-1 shows a state in which an icon including the character "?" in the upper left corner of the icon corresponding to user C.C. among the plurality of first icons is tapped. In this case, the reason why the talk room (second talk room) of user C.C. is determined as the destination talk room candidate is displayed.
Specifically, as shown in the right screen of FIG. 5-1, a speech bubble SB1 indicating the reason for the chat room being selected as a destination chat room candidate (a speech bubble including the words "most frequently viewed chat room" is displayed, by way of example and not by way of limitation) is displayed from an icon including the word "?" in the upper left portion of the icon corresponding to user C.C.

<Processing>
FIG. 5B is a flowchart showing an example of the flow of processing executed by the control unit 21 of the terminal 20 in this embodiment.
After A120, the control unit 21 determines whether a first input has been made to the icon-type talk room information (A530). If it is determined that a first input has been made (A530: YES), the control unit 21 causes the display unit 24 to display information about the second talk room (such as, but not limited to, information about why the second talk room became a candidate for a destination talk room) (A540).

On the other hand, if it is determined that a first input has not been made to the icon-type talk room information (A530: NO), the control unit 21 determines whether a second input has been made to the icon-type talk room information (A550). If it is determined that a second input has been made (A550: YES), the control unit 21 proceeds to A140.

<Effects of the Fifth Example>
In this embodiment, the icon-type talk room information is displayed in the first talk room.
As an example of an effect of an embodiment obtained by such a configuration, it is possible for a user of a terminal to check a movable second chat room while displaying the first chat room.

In this case, the terminal 20 can display on the display unit 24 a preview of the destination talk room, an indication of the reason why the destination talk room is a candidate (not limited to this, an example of a display related to the second chat room), etc., based on an input such as a long press operation on the icon-type talk room information displayed in the first talk room (not limited to this, an example of a first input), and can perform processing to display the second talk room on the display unit 24 based on an input such as a tap operation on the icon-type talk room information displayed in the first talk room (not limited to this, an example of a second input).
As an example of an effect of an embodiment obtained by such a configuration, by performing a first input on the first display while the first chat room is displayed, the user of the terminal can check information regarding the second chat room, whereas by performing a second input on the first display while the first chat room is displayed, the user of the terminal can easily display the second chat room.

Sixth Example
The sixth embodiment is an embodiment to which (B) switched talk room information is applied.
The contents described in the sixth embodiment are applicable to any of the other embodiments and other modified examples.
Furthermore, the same components as those already mentioned are given the same reference numerals and will not be described again.

In the above-described embodiment, the terminal 20 has been described as, when a first chat room (the currently displayed talk room, as an example and not a limitation) is displayed on the display unit 24, moving from this first chat room to a second chat room (as an example and not a limitation, the talk room to be displayed next) and displaying icon-type talk room information as an example of the first display (as an example and not a limitation, the talk room information corresponding to the talk room to be displayed next) regarding displaying the second chat room.

In this embodiment, the aforementioned switch-type talk room information is displayed instead of icon-type talk room information. Then, based on an input to this switch-type talk room information, the terminal 20 performs a first process related to displaying the second chat room (a process of switching talk rooms, as an example and not a limitation) by the control unit 21 of the terminal 20.

Switchable talk room information may include, by way of example and not limitation, information associated with a talk room, such as the name of the talk room (text information), an icon image of the talk room (image information), an identifier of the talk room (identification information), and a preview image of the talk room (image information), which is input by a user or assigned by a messaging service, and may be any one of these or a combination of two or more of them.

Note that the preview image of the chat room may or may not include, for example and without limitation, the name of the application, a talk area for chatting, etc.

In this embodiment, the switchable talk room information is information selected (specified) by the user of the terminal 20, and is information for moving from the first talk room to the second talk room and displaying the second talk room.

In this embodiment, by way of example and not limitation, terminal 20 does not perform a process of determining whether or not to display switched-type talk room information (talk room information display determination process), and instead, by way of example and not limitation, terminal 20 is able to display talk room information at any timing based on a specified action of the user of terminal 20.
As an example and not as a limitation, when a user of terminal 20 performs a specified operation (as an example and not as a limitation, an operation of swiping upward from the bottom of the display) at any timing in any talk room of a messaging application, switched talk room information can be displayed in the talk room information display area.

In this embodiment, the state in which switched talk room information is displayed in the talk room information display area by a specific user operation is different from the state in which a talk is being conducted in a messaging service, and is a state in which switched talk room information is displayed or selected (specified). Therefore, this state can be expressed as a talk room information display mode (state), a talk room information selection mode (state), a talk room information switcher mode (state), etc.

In this embodiment, the user of the terminal 20 can select any talk room information by swiping left or right on the switchable talk room information in the talk room information display area.

When the switched talk room information is displayed in the talk room information display area based on the operation of the user of the terminal 20, for example and not by way of limitation, the switched source talk room information corresponding to the first chat room may or may not be displayed in an area other than the talk room information display area.

In the following, the area where switch-type source talk room information is displayed is referred to as the "source talk room information display area." As a non-limiting example, the source talk room information display area can be displayed to the right of the talk room information display area where switch-type talk room information is displayed.

In this embodiment, when switched talk room information is displayed in the talk room information display area, the visibility of the talk area of the preview image in the switched talk room information is reduced, and it is displayed in a manner that makes it difficult for the user of terminal 20 to recognize the talk content.
As a non-limiting example, the visibility of the talk area of the preview image in the switched talk room information may be reduced by performing mosaic processing, hatching processing, or the like.

In addition, when reducing the visibility of the talk area of the preview image in switched-type talk room information, the visibility of the talk area of the preview image in all switched-type talk room information may be reduced, or the visibility of the talk area of the preview image in some of the multiple switched-type talk room information may be reduced.
As a non-limiting example, the visibility of the talk area of a preview image in switchable talk room information corresponding to a talk room with unread messages may be reduced, while the visibility of the talk area of a preview image in switchable talk room information corresponding to a talk room with no unread messages may not be reduced.

In this embodiment, when switched-type source talk room information is displayed in the source talk room information display area, the information is displayed in a manner that allows the user of terminal 20 to recognize the talk content without reducing the visibility of the talk area of the preview image in the switched-type source talk room information.
In addition, the visibility of the talk area of the preview image in the switched-type source talk room information may be reduced, and the talk area may be displayed in a manner that makes it difficult for the user of terminal 20 to recognize the talk content.

Even when switching-type talk room information is applied, as an example and not a limitation, a destination talk room candidate can be determined by a method similar to the method described in the second embodiment, and switching-type talk room information corresponding to the determined destination talk room candidate can be displayed.
As one method, as described in the second embodiment, the control unit 21 of the terminal 20 can perform a destination talk room candidate determination process (first destination talk room candidate determination process).
As another method, the control unit 11 of the server 10 may perform a destination talk room candidate determination process (second destination talk room candidate determination process).

Specifically, when switching-type talk room information is applied, similar to when icon-type talk room information is applied, it is possible to execute processing including, by way of example and not limitation, the destination talk room candidate determination processing shown in Figures 2-5 and 2-6.
A specific example of this process will be described later.

<Display screen>
6-1 and 6-2 are diagrams showing an example of a transition of screens displayed on the display unit 24 of the terminal 20A of the user A.

Here, in the first destination talk room candidate determination process, a figure showing an example of a display screen when the "talk room that has been displayed the most number of times within a set time" (No. "SP01-1") is determined as the destination talk room candidate is shown.
Specifically, in the process of determining the first destination talk room candidate, by way of example and not limitation, the talk rooms that have been displayed the most number of times within a set time (by way of example and not limitation, one hour) (by way of example and not limitation, a talk room for talking with user C.C., a talk room for talking with user D.D, and a talk room for talking with user E.E) are determined to be the destination talk room candidates.

In the screen on the left of Figure 6-1, the talk room name display area displays, by way of example and not limitation, text (in this example, "B.B") indicating that this is a talk room in which user A.A can talk with user B.B.

This screen shows a state in which the user of the terminal 20 swipes upward from the bottom of the display as an example of an input for displaying switched-type talk room information (hereinafter referred to as "switched-type talk room information display input"). In this case, the terminal 20 is controlled to the talk room information switcher mode. As a result, the screen shown in the center of FIG. 6-1 is displayed, by way of example and not limitation.

Specifically, by way of example and not limitation, talk room information display area ER2 displays switch-type talk room information corresponding to the destination talk room candidate determined in the first destination talk room candidate determination process.
In this example, by way of example and not limitation, multiple switched talk room information is displayed, including a user name "C.C", a corresponding icon, and a corresponding preview image, a user name "D.D", a corresponding icon, and a corresponding preview image, and a user name "E.E", a corresponding icon, and a corresponding preview image.

In this example, the switchable talk room information corresponding to the user name "C.C." is displayed in the center of the screen of the display unit 24, making it more visible than the switchable talk room information corresponding to the user name "D.D." and the switchable talk room information corresponding to the user name "E.E." and is displayed in a position that makes it easier for the user to select.

In addition, in the source talk room information display area ER3, as a non-limiting example, switch-type source talk room information corresponding to the first chat room is displayed.
In this example, by way of example and not limitation, switched-type source talk room information including the user name "B.B.", a corresponding icon, and a corresponding preview image is displayed.

The screen on the right of FIG. 6-1 shows a state in which switched talk room information corresponding to user C.C. is swiped rightward as an example, but not limited to, of an input for switching the display of switched talk room information, or as an example, but not limited to, an input for changing the position where switched talk room information is displayed (the area where switched talk room information is displayed) (hereinafter referred to as a "switched talk room information display change input"). In this case, the switched talk room information corresponding to user C.C. moves rightward, and other switched talk room information displayed on the left side of the talk room information display area ER2 (as examples, but not limited to, the switched talk room information corresponding to user D.D. and the switched talk room information corresponding to user E.E.) moves rightward. As a result, as an example, but not limited to, the screen shown on the left of FIG. 6-2 is displayed.

Specifically, in the talk room information display area ER2, as a non-limiting example, switched talk room information moved by a swipe operation by the user is displayed.
In this example, by way of example and not limitation, multiple switched talk room information is displayed, including a user name "C.C", a corresponding icon, and a corresponding preview image, a user name "D.D", a corresponding icon, and a corresponding preview image, and a user name "E.E", a corresponding icon, and a corresponding preview image.

In this example, the switchable talk room information corresponding to the user name "D.D" is displayed in the center of the display unit 24, making it more visible than the switchable talk room information corresponding to the user name "C.C" and the switchable talk room information corresponding to the user name "E.E." It is therefore displayed in a position that makes it easier for the user to select.

Also, by way of example and not limitation, the switched talk room information corresponding to user D.D is shown tapped.
In this case, control of the talk room information switcher mode is terminated, and the display is switched from the talk room with user B.B (first talk room) to the talk room with user D.D (second talk room). As a result, the screen shown on the right of FIG. 6-2 is displayed, by way of example and not limitation.

Specifically, this is a talk room in which user A.A can talk with user D.D., and by way of example and not limitation, characters indicating that this is a talk room for a user with the name "D.D" (in this example, "D.D") are displayed in the talk room name display area CLR.
Below that, a talk area is configured for user A.A and user D.D to talk in a dialogue format, with messages from the other user, user D.D, displayed on the left side of the screen, and messages from user A.A, the user himself, displayed on the right side of the screen.

<Processing>
FIG. 6C is a flowchart showing an example of the flow of processing executed by the terminal 20 in this embodiment.
After A110, the control unit 21 determines whether or not the switched-type talk room information display condition is met (A620).
The switched-type talk room information display condition may be, for example and without limitation, that the switched-type talk room information display input described above is made via the input unit.

When it is determined that the switch-type talk room information display condition is satisfied (A620: YES), the control unit 21 executes a first destination talk room candidate determination process (A115). In this case, the control unit 21 of the terminal 20 may determine a destination talk room candidate by, for example and not by way of limitation, a method similar to the method described above based on the destination talk room candidate determination table (see FIG. 2-1 ).
Then, the control unit 21 causes the display unit 24 to display switch-type talk room information corresponding to the determined destination talk room candidate (A630).
In this case, as one method, and not by way of limitation, the control unit 21 of the terminal 20 can generate and display switchable talk room information corresponding to the determined destination talk room candidate based on the talk history and talk room information stored in the memory unit 28.

Alternatively, the terminal 20 may transmit information about the determined destination talk room candidate to the server 10 and receive talk history and talk room information corresponding to the destination talk room candidate from the server 10. Then, the control unit 21 of the terminal 20 may generate and display switchable talk room information based on the received information, but this is not essential.

Next, the control unit 21 determines whether a switch-type talk room information display switching condition is met (A640).
The switch-type talk room information display switching condition may be, for example and without limitation, that the switch-type talk room information display switching input described above is made via the input unit.

When it is determined that the switched-type talk room information display switching condition is met (A640: YES), the control unit 21 performs a switched-type talk room information display switching process (A650).
Specifically, the control unit 23 performs control to change the display position (display area) of the switched talk room information on the display unit 24 .

The control unit 21 then determines whether or not an input (for example, a tap, but not limited to this) has been made to the displayed switched-type talk room information (A660). If it is determined that an input has been made (A660: YES), the control unit 21 performs control to switch the display from the first talk room being displayed to the second talk room corresponding to the input switched-type talk room information (A670). The control unit 21 then ends the process.

If it is determined in A660 that no input has been made to the switched talk room information (A660: NO), the control unit 21 determines whether or not to end the process (A690). If it is determined to continue the process (A690: NO), the control unit 21 returns the process to A640. On the other hand, if it is determined to end the process (A690: YES), the control unit 21 ends the process.

If it is determined in A620 that the switched talk room information display condition is not satisfied (A620: NO), the control unit 21 determines whether to end the process (A695). If it is determined to continue the process (A695: NO), the control unit 21 returns the process to A620. On the other hand, if it is determined to end the process (A695: YES), the control unit 21 ends the process.

As described in the second modified example, the server 10 may determine the destination talk room candidates.
In this case, by way of example and not limitation, the process of FIG. 6-3 above can be rewritten to follow the process of FIG. 2-6 previously described.
Specifically, as an example and not a limitation, if it is determined in A620 of FIG. 6-3 that the switched-type talk room information display condition is met (A620: YES), the control unit 21 of the terminal 20 executes step A112 of FIG. 2-6.
In response to this, the control unit 11 of the server 10 executes steps S110 and S120 in FIG.
Then, the control unit 21 of the terminal 20 can display the switched-type talk room information based on the destination talk room candidate determination information received from the server 10, and then proceed to step A640 in FIG. 6-3.

The above contents are also applicable to other embodiments and variations related to the display of switched talk room information.

<Effects of the Sixth Embodiment>
In this embodiment, the terminal 20 displays a display of switched-type talk room information (not limited to this, an example of a first display) on the display unit 24. In this case, the display of the switched-type talk room information is displayed in an area of the display unit 24 of the terminal 20 that is different from an area in which the first talk room, which is the source talk room, is displayed.
As an example of an effect of an embodiment obtained by such a configuration, a display of a second chat room can be easily displayed based on an input to a first display displayed in an area different from the area in which the first chat room is displayed on the display unit of the terminal.

In this case, the display of switched-type talk room information can include switched-type source talk room information (not limited to, an example of a display related to the first chat room) corresponding to the first talk room displayed in the source talk room information display area (not limited to, an example of the first display area) of the display unit 24 of the terminal 20, and switched-type talk room information (not limited to, an example of a display related to the second chat room) corresponding to the destination second talk room displayed in the talk room information display area (not limited to, an example of the second display area) of the display unit 24 of the terminal 20.
As an example of the effect of the embodiment obtained by such a configuration, since a display relating to the first chat room is displayed in the first display area of the display unit of the terminal, the user of the terminal can confirm information about the first chat room from which the user moved and can also return the display to the first chat room as it is. Also, since a display relating to the second chat room is displayed in the second display area of the display unit of the terminal, the user of the terminal can confirm information about the second chat room to which the user moved and can also move from the first chat room to the second chat room.

In this case, the terminal 20 can be configured to use the control unit 21 to perform control to change the display position (display area) of the switched-type talk room information (not limited to this, an example of control to display a display related to the second chat room in the first display area) based on input to change the display position of the switched-type talk room information by the user of the terminal 20 (not limited to this, an example of input by the user of the terminal).
As an example of an effect of an embodiment obtained by such a configuration, it is possible to, for example and not by way of limitation, display a display related to the second chat room in the first display area based on an input by a user of the terminal, and conversely, it is possible to, for example and not by way of limitation, display a display related to the first chat room in the second display area based on an input by a user of the terminal.

In this case, if there is an unread message (not limited to this, but an example of content that has not been viewed by the user of the terminal) among the messages displayed in the second talk room, the switched talk room information can be displayed in a manner in which mosaic processing, hatching processing, etc. has been applied to the talk area of the preview image in the switched talk room information (not limited to this, but an example of this, where the content cannot be viewed).
As an example of the effect of an embodiment obtained by such a configuration, if there is content displayed in the second chat room that has not been viewed by the user of the terminal, the first display can be displayed in a manner that prevents the user of the terminal from viewing or viewing the unviewed content.

<Sixth Modification (1)>
In the sixth embodiment, when switched-type talk room information is displayed in the talk room information display area of the display unit 24, an example is shown in which switched-type source talk room information corresponding to the first chat room is displayed in a source talk room information display area that is different from the talk room information display area, but this is not limited to this.
As a non-limiting example, the switch-type source talk room information corresponding to the first chat room may not be displayed in the source talk room information display area.

In this case, while the switched-type source talk room information is not displayed in the source talk room information display area, the background image of the talk room corresponding to the first talk room (hereinafter referred to as the "source talk room background image") may or may not be displayed as the background image of the display unit 24.

In addition, when the background image of the source talk room is displayed as a background image on the display unit 24 in this manner, the visibility of this background image of the source talk room may be lower than that of the switched-type talk room information, or it may not be so.
As an example and not as a limitation, the background image of the source talk room as this background image may be an image with a lower display priority than the switched-type talk room information (it has a lower display layer and appears to be displayed in the back), thereby making it less visible than the switched-type talk room information, and as an example and not as a limitation, the background image may be subjected to mosaic processing or hatching processing, thereby making it less visible than the switched-type talk room information.

<Display screen>
6-4 is a diagram showing an example of a screen displayed on the display unit 24 of the terminal 20A of user A. A in this modified example, and is a diagram showing an example of a screen in which a background image of the source talk room is displayed as a background image of the display unit 24 when switched-type talk room information is displayed.

Here, an example of a display screen is shown when the "talk room that has been displayed the most times within a set time" with No. "SP01-1" is determined as the destination talk room candidate in the first destination talk room candidate determination process.
Specifically, in the process of determining the first destination talk room candidate, by way of example and not limitation, the talk rooms that have been displayed the most number of times within a set time (by way of example and not limitation, one hour) (by way of example and not limitation, a talk room for talking with user C.C., a talk room for talking with user D.D, and a talk room for talking with user E.E) are determined to be the destination talk room candidates.

In the screen of FIG. 6-4, the talk room information display area ER2 displays, by way of example and not limitation, switch-type talk room information corresponding to the destination talk room candidate determined in the first destination talk room candidate determination process.
In this example, by way of example and not limitation, multiple switched talk room information is displayed, including a user name "C.C", a corresponding icon, and a corresponding preview image, a user name "D.D", a corresponding icon, and a corresponding preview image, and a user name "E.E", a corresponding icon, and a corresponding preview image.

Also, on this screen, as a background image displayed across the entire screen of display unit 24, a source talk room background image corresponding to the first talk room is displayed, by way of example and not by way of limitation.
In this example, as a background image of the source talk room, by way of example and not limitation, the words "Messaging App" are displayed in the top center of the image as the name of the messaging application, an icon image and user name (in this example, user A.A) in the messaging application of the user of this terminal 20 are displayed in the top right of the image, and the talk room name (in this example, "B.B") is displayed in the talk room name display area CLR.
Below that, a talk area is configured for user A.A and user B.B to talk in a dialogue format, with messages from the other user B.B displayed on the left side of the screen and messages from user A.A displayed on the right side of the screen.

In this case, by way of example and not by way of limitation, the background image of the source chat room as this background image is an image that has a lower display priority than the switched-type chat room information (it appears to be displayed in the background because it has a lower display layer), and by way of example and not by way of limitation, a hatching process is performed. As a result, the background image of the source chat room is displayed with lower visibility than the switched-type chat room information.

<Sixth Modification (2)>
In the sixth embodiment, the terminal 20 is capable of displaying switched talk room information at any timing based on a predetermined action of the user of the terminal 20, without performing a talk room information display determination process, but is not limited to this example.
As a non-limiting example, the terminal 20 may perform a talk room information display determination process based on the talk room information display condition table (FIG. 3A) described in the third embodiment, using a method similar to that of the third embodiment. Then, when it is determined that the talk room information is to be displayed, the terminal 20 may display switched-type talk room information.

Similarly, the terminal 20 performs a talk room information display deletion determination process using a method similar to that of the fourth embodiment based on the talk room information display deletion condition table (FIG. 4-1) described in the fourth embodiment, etc. Then, when it is determined that the display of the talk room information should be deleted, the display of the switched talk room information can also be deleted.

As described in the third and fourth modified examples, it is also possible to have the talk room information display determination process and the talk room information display deletion determination process be performed on the server 10 side.

Seventh Example
The seventh embodiment relates to a method for preventing misidentification of a switched talk room.
The contents described in the seventh embodiment are applicable to any of the other embodiments and other modified examples.
Furthermore, the same components as those already mentioned are given the same reference numerals and will not be described again.

In this embodiment, when a user of the terminal 20 switches from a first talk room (one-to-one talk room, group talk room) to a second talk room (one-to-one talk room, group talk room), an example is illustrated in which the display mode of at least some of the users belonging to the second talk room is changed and displayed on the display unit 24.

In this embodiment, by way of example and not limitation, users belonging to the second talk room include users belonging to the second talk room who belong to the first talk room (hereinafter referred to as "first users"), and users belonging to the second talk room who do not belong to the first talk room (hereinafter referred to as "second users").
As an example and not by way of limitation, if the members belonging to "Group X" (first talk room: group talk room) are User A.A, User B.B, and User C.C, and the members belonging to "Group Y" (second talk room: group talk room) are User A.A, User B.B, and User D.D, the first user is User A.A and User B.B, and the second user is User D.D.

As one method for preventing misidentification of the second talk room, when switching to the second talk room, for example and not by way of limitation, the first user and the second user among the members belonging to the second talk room can be displayed in different ways.
By way of example and not limitation, the username and corresponding icon corresponding to the first user may be displayed in a normal manner (by way of example and not limitation, username: light text, icon: no highlighting icon), while the username and corresponding icon corresponding to the second user may be displayed in a special manner (by way of example and not limitation, username: bold text, icon: highlighting icon).

In addition, when the icon corresponding to the second user is displayed in a special mode (as an example, not a limitation, the icon: with emphasis icon), as an example, not a limitation, an emphasis icon (as an example, not a limitation, a round icon) can be displayed in a predetermined position (as an example, not a limitation, the upper left of the icon) as information emphasizing to the user that the user does not belong to the first talk room but belongs to the second talk room.

As another method for preventing misidentification of the second talk room to which a user is to move, the following method can be applied.
Examples of inputs for talk room information include input of a user name or a corresponding icon (hereinafter referred to as "third input") to display information about the destination talk room (second talk room) (for example and not limitation, a preview display of the destination talk room, a temporary destination talk room when temporarily switching to the destination talk room described below, etc.).
In addition, as an example of an input for another talk room information, as described above, an input for a user name or a corresponding icon (hereinafter referred to as "second input") to switch the display from the currently displayed talk room (first talk room) to the destination talk room (second talk room) is given.

By way of example and not limitation, when the input is a manipulation input, the third input is a long press operation on the input target, while the second input is a tap operation on the input target.

In this embodiment, when a third input (a long press operation is performed as an example and not as a limitation) is made to talk room information, a preview display of the destination talk room (second talk room) is displayed as information about the destination talk room, as an example and not as a limitation.
As a non-limiting example, the preview display of the destination chat room includes the name of the chat room, and if the chat room is a group chat room, the number of members belonging to the group in parentheses to the right of the chat room name, the names of the members belonging to the group, corresponding icons, and the talk area.

In addition, without being limited to this form, in a messaging service in which a third input is made to talk room information and it is possible to temporarily switch to a destination talk room and ultimately select whether or not to switch the destination talk room, when temporarily switching to a destination talk room, a temporary destination talk room corresponding to the destination talk room may be displayed as information about the destination talk room (second talk room).

In this embodiment, the visibility of the talk area is reduced by performing mosaic processing or hatching processing on the talk area, making it difficult for the user to recognize the talk content.

In addition, the present invention is not limited to this form. By not performing mosaic processing or hatching processing on the talk area, it is possible to make it easier for the user to recognize the talk content without reducing the visibility of the talk area.

<Display screen>
7A is a diagram showing an example of a transition of a screen displayed on the display unit 24 of the terminal 20A of the user A.

Here, in the first destination talk room candidate determination process, a figure showing an example of a display screen when the "talk room that has been displayed the most number of times within a set time" (No. "SP01-1") is determined as the destination talk room candidate is shown.
Specifically, in the process of determining the first destination talk room candidate, by way of example and not limitation, the talk rooms that have been displayed the most number of times within a set time (by way of example and not limitation, one hour) (by way of example and not limitation, a talk room for talking to the group "work," a talk room for talking to the group "family," and a talk room for talking to user E.E.) are determined to be the destination talk room candidates.

In the screen on the left of FIG. 7-1, the talk room name display area CLR displays, by way of example and not limitation, text (in this example, "B.B") indicating that this is a talk room in which user A.A can talk with user B.B.

In this example, the talk room information display area ER1 displays multiple pieces of talk room information, including, by way of example and not limitation, the group name "Work" and its corresponding icon, the group name "Family" and its corresponding icon, and the user name "E.E" and its corresponding icon.

Also, in this example, if the talk room is a group talk room, the number of members belonging to the group is displayed in parentheses to the right of the talk room name.
Specifically, the number "4" is shown in parentheses to the right of the group name "Work", indicating that the group has four members, and the number "5" is shown in parentheses to the right of the group name "Family", indicating that the group has five members.

The screen on the right of Figure 7-1 shows, as a non-limiting example, a state in which the group name "Work" or the corresponding icon from among multiple chat room information is pressed and held. In this case, a preview display PV1 of the destination chat room is displayed from the bottom to the top of the display unit 24.

In this preview display PV1, by way of example and not limitation, at the top of the preview display, text (in this example, "Work") is displayed indicating that this is a chat room for a group named "Work", and a number (in this example, the number "4") indicating the number of members in this group is displayed in parentheses to the right of that.
Also displayed below that are the names of the members belonging to this group (in this example, "A.A.", "B.B.", "X.X.", and "Y.Y.") and their corresponding icons.
Further below that, a talk area is configured for the members of this talk room to talk, with messages from the other users, User B.B, User X.X, and User Y.Y, displayed on the left side of the screen, and messages from User A.A, the user, displayed on the right side of the screen.

In this example, by way of example and not limitation, the first users are User A.A and User B.B, and the second users are User X.X and User Y.Y. Therefore, by way of example and not limitation, the user names and corresponding icons corresponding to the first users (User A.A and User B.B) are displayed in a normal manner (by way of example and not limitation, User name: thin type, Icon: no highlighted icon), while the user names and corresponding icons corresponding to the second users (User X.X and User Y.Y) are displayed in a special manner (by way of example and not limitation, User name: bold type, Icon: highlighted icon).

In addition, in this example, the talk area where members of the chat room can talk is hatched, which reduces the visibility of the talk area and makes it difficult for users to understand the content of the talk.

<Effects of the Seventh Example>
In the present embodiment, the terminal 20 displays a second talk room including a plurality of users including the user of the terminal 20 on the display unit 24 based on an input to the terminal 20 on which the talk room information is displayed. In this case, the terminal 20 is configured to display the second talk room in a different display mode for at least some of the users included in the second talk room.
As an example of an effect of the embodiment obtained by such a configuration, it is possible to prevent the user of the terminal from mistakenly recognizing the second talk room to which the user has moved.

In this case, the multiple users include a first user who is included in the first talk room and a second user who is not included in the first talk room, and terminal 20 can perform processing to make the display mode of the first user and the second user different.
As an example of an effect of an embodiment obtained by such a configuration, it is possible for a user of a terminal to easily distinguish between a first user who is included in a first chat room and a second user who is not included in the first chat room.

In addition, this embodiment illustrates a configuration in which terminal 20 displays the second talk room on display unit 24 in a display manner different from the case in which the second talk room is displayed without moving from the first talk room, based on an input (not limited to this, an example of a fourth input) to terminal 20 on which talk room information is displayed.
As an example of an effect of an embodiment obtained by such a configuration, a user of a terminal can easily identify a second chat room to which the user is to move without moving from the first chat room.

In addition, this embodiment illustrates a configuration in which the terminal 20 displays a preview display of the destination talk room (not limiting, but an example of a display related to the second chat room to be moved to) on the display unit 24 based on a long press operation (not limiting, but an example of a fifth input for the first display) on the displayed talk room information (not limiting, but an example of the first display), and displays information such as the names of users included in the second talk room (not limiting, but an example of the users included in the second chat room) on the display unit 24.
As an example of an effect of an embodiment obtained by such a configuration, it is possible to enable a user of a terminal to easily identify a second chat room to which the user is to move and the users included in the second chat room to which the user is to move, without moving from the first chat room.

<Seventh Modification (1)>
In the seventh embodiment, the display mode of the users belonging to the second talk room is changed to prevent misidentification of the second talk room to which the user has moved. However, the present invention is not limited to this.
By way of example and not limitation, misidentification may be prevented by including in the talk room information information related to the second talk room that is different from the information identifying the second talk room.

In this variant, by way of example and not limitation, the talk room information may include a talk room name and a corresponding icon as information for identifying the second talk room, and may also include information related to the second talk room.
Specifically, information related to the second chat room may include, but is not limited to, the following examples:
Information for identifying the second chat room that is different from the chat room name and the corresponding icon (such as, for example and not limited to, a background image of the chat room)
- Attribute information of the chat room (for example but not limited to, information indicating that it is registered as a favorite, information indicating that it is in a folder, etc.)
etc. can be included.

<Display screen>
(1) First Display Screen Example FIG. 7-2 is a diagram showing an example of a screen displayed on the display unit 24 of the terminal 20A of user A.
Here, an example of a screen is shown in which the talk room information includes the above-mentioned (1) background image of the talk room as information related to the second talk room, by way of example and not limitation.

Here, in the first destination talk room candidate determination process, a figure showing an example of a display screen when the "talk room that has been displayed the most number of times within a set time" (No. "SP01-1") is determined as the destination talk room candidate is shown.
Specifically, in the process of determining the first destination talk room candidate, by way of example and not limitation, the talk rooms that have been displayed the most number of times within a set time (by way of example and not limitation, one hour) (by way of example and not limitation, a talk room for talking to the group "work," a talk room for talking to the group "family," and a talk room for talking to user E.E.) are determined to be the destination talk room candidates.

In the screen of FIG. 7-2, the talk room name display region CLR displays, by way of example and not limitation, characters (in this example, "B.B") indicating that the talk room is a talk room in which user A.A can talk with user B.B.
Below that, a talk area is configured for user A.A and user B.B to talk in a dialogue format, with messages from the other user B.B displayed on the left side of the screen and messages from user A.A displayed on the right side of the screen.
In addition, a talk room information display area ER1 is provided at the bottom of the talk area, which displays one or more talk room information (not limited to this, an example of the first display) and is configured to allow the user to select the talk room to move to.

In addition, in this example, in the talk room information display area ER1 in which talk room information is displayed, there are provided, from left to right, a first talk room information display area ER11, a second talk room information display area ER12, and a third talk room information display area ER13.

In this screen, the talk room information display area ER1 (first talk room information display area ER11, second talk room information display area ER12, third talk room information display area ER13) displays, by way of example and not limitation, talk room information corresponding to the destination talk room candidate determined in the first destination talk room candidate determination process.
Specifically, as a non-limiting example, multiple talk room information is displayed, including the group name "Work" and a corresponding icon in the first talk room information display area ER11, the group name "Family" and a corresponding icon in the second talk room information display area ER12, and the user name "E.E" and a corresponding icon in the third talk room information display area ER13.

Also, in this example, as talk room information, by way of example and not limitation, a background image of the second talk room, which is information related to the second talk room, is displayed together with the talk room name and a corresponding icon.
Specifically, in the first talk room information display area ER11, a background image of the talk room corresponding to the group name "Work" is displayed together with the group name "Work" and its corresponding icon, in the second talk room information display area ER12, a background image of the talk room corresponding to the group name "Family" is displayed together with the group name "Family" and its corresponding icon, and in the third talk room information display area ER13, a background image of the talk room corresponding to the user name "E.E" is displayed together with the user name "E.E" and its corresponding icon.

Also, in this example, if the talk room is a group talk room, the number of members belonging to the group is displayed in parentheses to the right of the talk room name.
Specifically, the number "4" is shown in parentheses to the right of the group name "Work", indicating that the group has four members, and the number "5" is shown in parentheses to the right of the group name "Family", indicating that the group has five members.

(2) Second Display Screen Example Fig. 7-3 is a diagram showing an example of a screen displayed on the display unit 24 of the terminal 20A of the user A.
Here, an example of a screen is shown in which the talk room information includes the aforementioned (2) attribute information (information indicating that the talk room has been registered as a favorite) as information related to the second talk room, by way of example and not limitation.

Here, in the first destination talk room candidate determination process, a figure showing an example of a display screen when the "talk room that has been displayed the most number of times within a set time" (No. "SP01-1") is determined as the destination talk room candidate is shown.
Specifically, in the process of determining the first destination talk room candidate, by way of example and not limitation, the talk rooms that have been displayed the most number of times within a set time (by way of example and not limitation, one hour) (by way of example and not limitation, a talk room for talking with the group "work," a talk room for talking with the group "family," and a talk room for talking with user E.E.) are determined to be the destination talk room candidates.

In addition, in this case, in a messaging service in which the user of terminal 20 can register any talk room as a favorite, it is assumed that the user of terminal 20 has registered a talk room for talking with the group "Family" as a favorite.

In the screen of FIG. 7-3, the talk room name display region CLR displays, by way of example and not limitation, characters (in this example, "B.B") indicating that the talk room is a talk room in which user A.A can talk with user B.B.
Below that, a talk area is configured for user A.A and user B.B to talk in a dialogue format, with messages from the other user B.B displayed on the left side of the screen and messages from user A.A displayed on the right side of the screen.

On this screen, talk room information display region ER1 displays, by way of example and not limitation, talk room information corresponding to the destination talk room candidate determined in the first destination talk room candidate determination process.
Specifically, as multiple talk room information, by way of example and not limitation, multiple talk room information is displayed including a group name "Work" and a corresponding icon, a group name "Family" and a corresponding icon, and a user name "E.E" and a corresponding icon.

In addition, in this example, as talk room information, by way of example and not limitation, information related to the second talk room, indicating that the talk room has been registered as a favorite, is displayed along with the talk room name and a corresponding icon.
Specifically, a star-shaped icon indicating that the group is registered as a favorite is displayed in the upper left corner of the icon corresponding to the group name "Family."

Also, in this example, if the talk room is a group talk room, the number of members belonging to the group is displayed in parentheses to the right of the talk room name.
Specifically, the number "4" is shown in parentheses to the right of the group name "Work", indicating that the group has four members, and the number "5" is shown in parentheses to the right of the group name "Family", indicating that the group has five members.

In this modification, the control unit 21 controls the terminal 20 to display information related to the second talk room in association with the talk room information.
As an example of an effect of an embodiment obtained by such a configuration, by displaying information related to the second chat room in association with the first display, it is possible to prevent the user of the terminal from misidentifying the second chat room to which the user is to move.

In this case, the talk room information may include an icon image of the second talk room (not limited to, an example of first image information for identifying the second chat room), and the information related to the second talk room may include a background image of the second talk room and a mark indicating that the second talk room has been registered as a favorite (not limited to, an example of second image information different from the first image information).
As an example of the effect of an embodiment obtained by such a configuration, the first image information can be used to enable the user of the terminal to identify the second chat room, and the second image information, which is different from the first image information, can be used to prevent the user of the terminal from misidentifying the second chat room to which they are scheduled to move.

<Seventh Modification (2)>
In the seventh embodiment, when switching to the second talk room, the display mode of the users belonging to the second talk room is changed to prevent misidentification of the switched talk room, but this is not limited to the example.
As a non-limiting example, as a method to prevent misidentification of the switched-to talk room, when switching to a second talk room, information regarding the second talk room, which is different from the user belonging to the second talk room, may be displayed in a different manner, or it may not be displayed in a different manner.

By way of example and not limitation, when switching to the second talk room, the talk room image of the second talk room may be displayed in an emphasized manner. Specifically, by way of example and not limitation, the talk room name of the second talk room may be displayed in bold, the background image of the second talk room may be displayed in animation, the outer frame of the second talk room may be displayed in a bold line, etc.

Eighth Example
The eighth embodiment relates to a method for enabling a user to recognize the talk room from which the user moved (before the move) when switching talk rooms, and a method for enabling the user to return to the talk room from which the user moved.
The contents described in the eighth embodiment are applicable to any of the other embodiments and other modified examples.
Furthermore, the same components as those already mentioned are given the same reference numerals and will not be described again.

In this embodiment, the terminal 20 displays a second chat room (the currently displayed talk room, as an example and not a limitation) on the display unit 24, and then moves from this second chat room to a first chat room (the previously displayed talk room, as an example and not a limitation) and displays a second display (source talk room information corresponding to the talk room to be displayed next, as an example and not a limitation) regarding displaying the first chat room on the display unit 24. Then, based on an input to this second display, the terminal 20 performs a second process (talk room switching process, as an example and not a limitation) regarding the display of the first chat room by the control unit 21 of the terminal 20.

In the present embodiment, “source talk room information” will be described as an example of the second display. The source talk room information is a type of information on a talk room associated with a talk room in a messaging service, and in particular, is a type of information on a talk room associated with a source talk room.
This source talk room information may include, by way of example and not limitation, information associated with the talk room, such as the name of the talk room (text information), an icon image of the talk room (image information), and an identifier (identification information) of the talk room, which are entered by the user or assigned by a messaging service, and may be any one of these, or a combination of two or more of these, or may not be the case.

In this embodiment, the source talk room information is information selected (specified) by the user of the terminal 20, and is information for moving (returning) from the second talk room to the first talk room and displaying the first talk room again. Therefore, the source talk room information may or may not be expressed as source talk room selection information, source talk room designation information, etc.

In this embodiment, when source chat room information is displayed, by way of example and not limitation, information (as a non-limiting example, an icon including a left-facing arrow) that allows the user to identify that this is a type of chat room information that corresponds to the source chat room (as a non-limiting example, the ability to return to the source chat room by tapping) is displayed at a specified position (as a non-limiting example, the upper left corner of the source chat room information).

In this embodiment, as an example and not as a limitation, a talk room information display area is provided at the bottom of the screen of the displayed talk room, in which one or more talk room information (not as a limitation, an example of the first display) is displayed, and which is configured to allow the user to select the talk room to move to.
A source talk room information display area ER4 capable of displaying source talk room information is provided in the leftmost area of this talk room information display area ER1.

<Display screen>
8A is a diagram showing an example of a transition of a screen displayed on the display unit 24 of the terminal 20A of the user A.

Here, a figure shows an example of a display screen when the first destination talk room candidate determination process determines the "talk room that has been displayed the most within a set time" (No. "SP01-1") as the destination talk room candidate.
Specifically, in the process of determining the first destination talk room candidate, by way of example and not limitation, the talk rooms that have been displayed the most number of times within a set time (by way of example and not limitation, one hour) (by way of example and not limitation, a talk room for talking with user C.C., a talk room for talking with user D.D, and a talk room for talking with user E.E) are determined to be the destination talk room candidates.

In the left screen of FIG. 8-1 , the talk room name display region CLR displays, by way of example and not limitation, characters (in this example, “B.B”) indicating that the talk room is a talk room in which user A.A can talk with user B.B.
In this example, the talk room information display area ER1 displays, by way of example and not limitation, talk room information corresponding to the destination talk room candidate determined in the first destination talk room candidate determination process.
Specifically, multiple pieces of talk room information are displayed, including a user name "C.C" and a corresponding icon, a user name "D.D" and a corresponding icon, and a user name "E.E" and a corresponding icon.
Below that, a talk area is configured for user A.A and user B.B to talk in a dialogue format, with messages from the other user B.B displayed on the left side of the screen and messages from user A.A displayed on the right side of the screen.

Also, by way of example and not limitation, this screen shows a state in which the user name "C.C." or the icon corresponding to the user name is tapped among multiple chat room information. In this case, the display switches from the chat room with user B.B. (first chat room) to the chat room with user C.C. (second chat room). As a result, by way of example and not limitation, the screen shown in the center of FIG. 8-1 is displayed.

This screen is a talk room in which user A.A can talk with user C.C., and by way of example and not limitation, the talk room name display area CLR displays characters (in this example, "C.C") indicating that the talk room is for a user with the name "C.C."
Below that, a talk area is configured for user A.A and user C.C to talk in a dialogue format, with messages from the other user C.C displayed on the left side of the screen and messages from user A.A displayed on the right side of the screen.

In addition, in the talk room information display area ER1 at the bottom of the screen, by way of example and not limitation, a plurality of pieces of icon-type talk room information are displayed.
Specifically, the source talk room information display area ER4 of the talk room information display area ER1 displays, by way of example and not limitation, source talk room information including the user name "B.B" and a corresponding icon, and the area of the talk room information display area ER1 to the right of the source talk room information display area ER4 displays multiple icon-type talk room information including the user name "D.D" and a corresponding icon, and the user name "E.E" and a corresponding icon.

In addition, in this example, information that identifies the chat room from which the user was moved and information that allows the user to return to the chat room from which the user was moved are displayed at a specified position of the icon corresponding to the chat room information from which the user was moved (as an example and not a limitation, the upper left corner of the chat room information from which the user was moved).
Specifically, an icon including a left-facing arrow indicating a return to the original talk room is displayed in the upper left corner of the icon corresponding to user B.B.

This screen also shows, by way of example and not limitation, a state in which the user name "B.B." or the corresponding icon (source talk room information) from among multiple talk room information is tapped. In this case, the display switches from the talk room with user C.C. (second talk room) to the talk room with user B.B. (first talk room). As a result, by way of example and not limitation, the screen shown on the right of FIG. 8-1 is displayed.

This screen is a talk room in which user A.A can talk with user B.B, and by way of example and not limitation, characters indicating that the talk room is for a user with the user name "B.B" (in this example, "B.B") are displayed in the talk room name display area CLR.
Below that, a talk area is configured for user A.A and user B.B to talk in a dialogue format, with messages from the other user B.B displayed on the left side of the screen and messages from user A.A displayed on the right side of the screen.

In addition, in the talk room information display area ER1 at the bottom of the screen, information on a plurality of talk rooms is displayed, for example and not by way of limitation.
Specifically, the source talk room information display area ER4 of the talk room information display area ER1 displays, by way of example and not limitation, source talk room information including the user name "C.C" and a corresponding icon, and the area of the talk room information display area ER1 to the right of the source talk room information display area ER4 displays multiple pieces of talk room information including the user name "D.D" and a corresponding icon, and the user name "E.E" and a corresponding icon.

In addition, in this example, information that identifies the chat room from which the user was moved and information that allows the user to return to the chat room from which the user was moved are displayed at a specified position of the icon corresponding to the chat room information from which the user was moved (as an example and not a limitation, the upper left corner of the chat room information from which the user was moved).
Specifically, an icon including a left-facing arrow indicating a return to the original talk room is displayed in the upper left corner of the icon corresponding to user C.C.

In addition, when the screen transitions in the order of the left screen of Figure 8-1 → the center screen of Figure 8-1 → the right screen of Figure 8-1, the control unit 21 of the terminal 20 may, by way of example and not by way of limitation, display in the first talk room (talk room on the right screen of Figure 8-1) a notification regarding moving from the second talk room (talk room on the center screen of Figure 8-1) to the first talk room (talk room on the left screen of Figure 8-1) after moving from the first talk room (talk room on the left screen of Figure 8-1) to the second talk room (talk room on the center screen of Figure 8-1).
In this case, as a non-limiting example, text such as "You are now back in the original chat room" may be displayed in pop-up format in the center of the screen or in push notification format at the top of the screen.

Also, the notification may be given by a method other than display.
As a non-limiting example, the control unit 21 of the terminal 20 may notify the user of the terminal 20 that they have returned to the original talk room by controlling a vibration unit (not shown) of the terminal 20 to vibrate the housing (vibration function), by controlling the sound output unit 26 of the terminal 20 to output a specific sound (as a non-limiting example, a voice notifying the user that they have returned to the original talk room, a specific sound effect, etc.), or by controlling a light-emitting unit (not shown) of the terminal 20 to emit light.

<Effects of the Eighth Example>
In this embodiment, the terminal 20 displays the second talk room on the display unit 24. Then, the terminal 20 displays source talk room information (not limited to, an example of a second display relating to moving from the second chat room to the first chat room and displaying the first chat room on the display unit) in the displayed second talk room on the display unit 24. Then, the terminal 20 shows a configuration in which the control unit 21 performs a process of switching the display from the second talk room to the first talk room based on an input for the source talk room information.
As an example of the effect of the embodiment obtained by such a configuration, when moving from a first chat room to a second chat room, the first chat room from which the user moved can be easily recognized by the second display, and the user can easily return to the first chat room from which the user moved based on an input to the terminal on which the second display is displayed.

In this case, when the terminal 20 switches the display from the second talk room to the first talk room based on input for the source talk room information, a message indicating that after moving from the first talk room to the second talk room, the user has moved from the second talk room to the first talk room (not limited to this, but an example of a notification regarding moving from the first chat room to the second chat room, and then moving from the second chat room to the first chat room) may be displayed on the display unit 24.
As an example of an effect of an embodiment obtained by such a configuration, after moving from a first chat room to a second chat room, the user of the terminal can easily recognize that he or she has moved from the second chat room to the first chat room.

In this case, terminal 20 can display source talk room information (not limited to, but an example of information regarding the first chat room) in the second talk room based on input regarding talk room information displayed in the first talk room.
As an example of an effect of an embodiment obtained by such a configuration, it is possible to enable a user of a terminal to confirm, in the second chat room, the first chat room from which the user moved, based on an input to the first display.

Reference Signs List 1 Communication system 10 Server 20 Terminal 30 Network

Claims (11)

A program executed by a terminal that performs processing related to a service having at least a chat function,
displaying a first chat room including the user of the terminal on a display unit of the terminal;
when a predetermined condition is satisfied, a first display is displayed on the display unit, the first display prompting the display unit to display one or more second chat rooms different from the first chat room, and when the predetermined condition is not satisfied, the first display is not displayed on the display unit;
the predetermined condition is that text of the content posted to the first chat room contains a word associated with an account registered with the service that is different from the account of the user of the terminal;
When the predetermined condition is satisfied, the terminal displays the first display on the display unit, the first display indicating that the chat room of the different account is the second chat room.
program. A program executed by a terminal that performs processing related to a service having at least a chat function,
displaying a first chat room including the user of the terminal on a display unit of the terminal;
when a predetermined condition is satisfied, a first display is displayed on the display unit, the first display prompting the display unit to display one or more second chat rooms different from the first chat room, and when the predetermined condition is not satisfied, the first display is not displayed on the display unit;
the predetermined condition being that a context based on content posted to the first chat room is a context associated with an account registered with the service that is different from an account of the user of the terminal;
When the predetermined condition is satisfied, the terminal displays the first display on the display unit, the first display indicating that the chat room of the different account is the second chat room.
Program. The program according to claim 1 or 2 ,
the first display includes an image set as an image showing the second chat room;
program. The program according to any one of claims 1 to 3,
the first representation includes information about the different accounts;
program. The program according to any one of claims 1 to 4 ,
When the first indication is displayed, a second indication regarding a reason for displaying the first indication is displayed on the display unit.
program. The program according to claim 5 ,
The second display is displayed adjacent to the first display.
program. The program according to any one of claims 1 to 6 ,
and displaying information about the second chat room superimposed on at least a portion of the first chat room, based on an input by a user of the terminal to the first display.
program. An information processing method for a terminal that performs processing related to a service having at least a chat function,
displaying a first chat room including the user of the terminal on a display unit of the terminal;
displaying a first display on the display unit when a predetermined condition is satisfied, the first display prompting the display unit to display one or more second chat rooms different from the first chat room, and not displaying the first display on the display unit when the predetermined condition is not satisfied,
the predetermined condition is that text of the content posted to the first chat room contains a word associated with an account registered with the service that is different from the account of the user of the terminal;
When the predetermined condition is satisfied, the first display indicating that the chat room of the different account is the second chat room is displayed on the display unit.
Information processing methods. An information processing method for a terminal that performs processing related to a service having at least a chat function,
displaying a first chat room including the user of the terminal on a display unit of the terminal;
displaying a first display on the display unit when a predetermined condition is satisfied, the first display prompting the display unit to display one or more second chat rooms different from the first chat room, and not displaying the first display on the display unit when the predetermined condition is not satisfied,
the predetermined condition being that a context based on content posted to the first chat room is a context associated with an account registered with the service that is different from an account of the user of the terminal;
When the predetermined condition is satisfied, the first display indicating that the chat room of the different account is the second chat room is displayed on the display unit.
Information processing methods. A terminal that performs processing related to a service having at least a chat function,
A display unit;
a control unit that displays a first chat room including a user of the terminal on the display unit, and when a predetermined condition is satisfied, displays a first display on the display unit that prompts the user to display one or more second chat rooms different from the first chat room, and when the predetermined condition is not satisfied, performs control to not display the first display on the display unit;
the predetermined condition is that text of the content posted to the first chat room contains a word associated with an account registered with the service that is different from the account of the user of the terminal;
When the predetermined condition is satisfied, the control unit performs control to display the first display on the display unit, the first display designating the chat room of the different account as the second chat room.
Terminal. A terminal that performs processing related to a service having at least a chat function,
A display unit;
a control unit that displays a first chat room including a user of the terminal on the display unit, and when a predetermined condition is satisfied, displays a first display on the display unit that prompts the user to display one or more second chat rooms different from the first chat room, and when the predetermined condition is not satisfied, performs control to not display the first display on the display unit;
the predetermined condition being that a context based on content posted to the first chat room is a context associated with an account registered with the service that is different from an account of the user of the terminal;
When the predetermined condition is satisfied, the control unit performs control to display the first display on the display unit, the first display designating the chat room of the different account as the second chat room.
Terminal.

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