JP4628949B2 - Data transmission apparatus, data communication system, data transmission / reception method, communication control program, and recording medium - Google Patents

Description

  The present invention relates to a data communication system between terminals and between a terminal and an information transmission device using close proximity wireless communication.

  Various types of information are actively carried around on portable terminals, and it is required to obtain necessary information accurately, quickly and easily from many information sources. There is a need for a system that can easily obtain information from other devices, portable terminals, information sources such as television receivers, and provide information to these terminals.

  For example, Patent Document 1 discloses the following infrared transmitter, infrared receiver, and infrared transmission system. In an infrared transmitter, an infrared receiver, and an infrared transmission system, an AV signal supplied from a terminal is FM modulated in a transmission adapter that transmits an infrared signal, converted into an infrared signal by an infrared light emitting element, and spatially transmitted as a signal. . The visible light emitting element is arranged so that visible light emitted from the visible light irradiates a position substantially the same as the irradiation position of infrared rays from the infrared element. When the switch is pressed, the visible light emitting element is driven by the drive control circuit to irradiate visible light at substantially the same position as the irradiation position of the signal from the infrared light emitting element, so that the positioning with respect to the receiving element can be easily performed. In addition, since the receiving adapter to which the receiving element is attached is provided with an indicator for displaying the incident infrared power, it is possible to easily check for an excessive input or the like. That is, the infrared transmission device includes an irradiation unit that irradiates a light beam for alignment at a position that is substantially the same as the irradiation position of the infrared signal, and a user operation while the device is being used. It emits light for a predetermined time at an arbitrary timing. In addition, the infrared receiving device is characterized by including a display device that performs display according to the level of the signal received by the receiving means.

  Patent Document 2 discloses the following infrared communication device. This infrared communication device includes a visible light emitting element that emits visible light connected in parallel to an infrared light emitting element that emits infrared light. The visible light emitting element emits visible light in synchronization with the operation of the infrared light emitting element, and the visible light emitting element connected in parallel to the infrared light receiving element emits visible light in synchronization with the infrared light reception of the infrared light receiving element. That's it.

Further, Patent Document 3 discloses the following position indicating device. This position indicating device emits light with high directivity for indicating a position, and modulates light from the light irradiation means for signal transmission, thereby selectively transmitting signals to a plurality of signal receiving devices. Is to make it easy to do.
JP 9-8735 (released January 10, 1997) JP2000-4238 (released January 7, 2000) JP 1-266582 (released October 24, 1989)

  Conventionally, the IrDA standard has been used as a method for performing data communication between portable terminals using close proximity wireless communication, but there have been cases where operations are complicated and transmission / reception is not performed normally. As one method for quickly and easily exchanging information between terminals or the like, an Ir communication method using a simple protocol such as the Ir simple standard is going to be used in the future. However, in communication using these communication methods, it is important that the operability of the terminal is good, that the transmitting terminal and the receiving terminal face each other correctly, and that data transmission / reception is performed correctly. There is a need for a method that can easily determine whether the process is correctly performed.

  However, in order to confirm the transmission / reception state in advance, there is a problem that information indicating the reception state is presented and transmission / reception means for confirming the transmission / reception state in advance is required.

  The present invention has been made in view of the above problems, and has an object of presenting a reception state using proximity wireless communication and having a function of confirming a transmission / reception state in advance before data transmission / reception is performed. It is to realize a data communication system.

  (1) In order to solve the above-described problem, the data transmission device according to the present invention confirms the reception state in the data reception device in the data transmission device that communicates with the data reception device that notifies the reception state by the near field communication method. Receiving state confirmation signal transmitting means for transmitting the data, and transmission data transmitting means for transmitting data held in the data transmitting device, wherein the reception state confirmation signal transmitting means transmits the data The reception status confirmation signal is transmitted before.

  In this configuration, the reception status confirmation signal transmission means receives the reception status confirmation signal for confirming the reception status in the data reception apparatus before the transmission data transmission means transmits the data held in the data transmission apparatus. Send to device. Therefore, according to the configuration of the data transmission device of the present invention, it is possible to go through a step of confirming the reception state of the data reception device before data transmission.

  Note that the method of confirming the reception state differs depending on the form in which the data reception apparatus notifies the reception state. For example, when the data reception device that has received the reception state confirmation signal issues a signal indicating the reception state, the data transmission device can analyze the reception state by receiving the signal.

  On the other hand, when the data reception device that has received the reception status confirmation signal displays the reception status with an indicator or the like, the operator of the data transmission device can visually determine the reception status.

  Thus, by transmitting the reception status confirmation signal before transmitting data, there is an effect that data transmission becomes possible after grasping the reception status of the data receiving device.

  (2) The data transmission apparatus according to the present invention is characterized in that, in order to solve the above-described problem, the reception state confirmation signal is a repetitive signal having a constant period.

  In this configuration, the reception state confirmation signal transmitted by the data transmission device is a repetitive signal having a constant period and is different from a signal existing in the natural world.

  According to the above configuration, since a repetitive signal having a fixed period can be easily distinguished from a signal existing in the natural world, a predetermined reception state confirmation signal transmitted by the data transmitting apparatus is mistaken for a signal existing in the natural world and data It is received by the receiving device, and there is an effect that the data receiving device can be prevented from malfunctioning.

  (3) In order to solve the above-described problem, the data transmission device according to the present invention includes a first state that is not an operation state, a second state that drives the reception state confirmation signal transmission unit, and the transmission data. An operation means capable of taking a third state for driving the transmission means is provided.

  In this configuration, when the operating means is in the first state, no processing is performed. When the operation unit is in the second state, the reception state confirmation signal transmission unit is driven, and a predetermined reception state confirmation signal is transmitted to the data receiving device. When the operating means is in the third state, the transmission data transmitting means is driven and data is transmitted to the data receiving device.

  According to said structure, since one operation means can take three states, there exists an effect that the effort of operation can be reduced.

  (4) In order to solve the above-described problem, the data transmitting apparatus according to the present invention is characterized in that the operation means is a two-stage push button that can be pressed in two stages.

  In the configuration, that the operating means is in the first state corresponds to a state where the two-step push button is not pressed, and that the second state is that the first step of the two-step push button. The third state corresponds to pressing down to a certain first level, and the third state corresponds to pressing down to the second level, which is a second depth deeper than the first depth, of the two-level push button.

  According to the above configuration, when the data transmission device is held by hand, the two-stage press that is pressed down to the first stage is used to instruct the data transmission from the state in which the reception state confirmation signal is transmitted. Minimize the amount of deviation of the irradiation direction of the reception status confirmation signal sent when confirming the reception status by pressing the button to the second level, that is, with a simple operation. There is an effect that can be.

  (5) In order to solve the above-described problem, the data transmission device according to the present invention transmits the data when the transmission data transmission unit is in a good reception state notified from the data reception device. It is characterized by that.

  In this configuration, the transmission data transmitting means may be configured not to transmit data when the reception status notified from the data receiving device is bad.

  According to the above configuration, before transmitting data, it is determined whether the communication is successful or not. For example, since the position and direction of the data transmission device with respect to the data reception device can be determined, it is possible to hold the data transmission device and the data reception device that perform communication at appropriate positions, thereby avoiding a bad communication state, The number of retries due to errors can be reduced. Thereby, there is an effect that data transmission by communication can be completed in a short time.

  In addition, when the reception state notified from the data reception device is good, the configuration may be such that data is automatically transmitted.

  (6) The data communication system according to the present invention is a data communication system that performs data communication using a near field communication method in order to solve the above-described problem, and the data according to any one of claims 1 to 5. The transmission apparatus and a data reception apparatus that notifies the reception state of the reception state confirmation signal transmitted from the data transmission apparatus.

  In this configuration, the reception state confirmation signal transmission unit transmits a predetermined reception state confirmation signal. When the data reception device receives the reception state confirmation signal, the data reception device notifies the data transmission device of the reception state of the reception state confirmation signal.

  For example, after it is confirmed that the communication state is good by the notification of the reception state, the transmission data transmission unit transmits the data to the data reception device. The data receiving device receives the transmitted data.

  According to said structure, the data communication system which concerns on this invention has an effect similar to the effect which the said data transmission device brings.

  (7) On the other hand, a data transmission / reception method according to the present invention provides a method for controlling a data transmission apparatus that communicates with a data reception apparatus that notifies a reception state by a near field communication method in order to solve the above-described problem. A reception state confirmation signal transmission step for transmitting a reception state confirmation signal for confirming a reception state; and a transmission data transmission step for transmitting data held in the data transmission device, wherein the reception state confirmation signal transmission step includes: The reception status confirmation signal is transmitted before transmitting the data.

  In this configuration, in the reception state confirmation signal transmission step, a predetermined reception state confirmation signal is transmitted to the data receiving device. When the data reception device receives the reception state confirmation signal, the data reception device notifies the data transmission device of the reception state of the reception state confirmation signal. Thereafter, data is transmitted in a transmission data transmission step.

  For example, when it is confirmed by the notification of the reception state that the communication state is good, in the transmission data transmission step, the data is transmitted to the data reception device, and the data reception device receives the transmitted data. can do.

  According to said structure, before transmitting data, there exists an effect that the state of communication can be known whether communication is successful.

  (8) By the way, the data transmission device may be realized by hardware, or may be realized by causing a computer to execute a program. Specifically, the communication control program according to the present invention is an information processing program that causes a computer to operate as at least the above-described reception state confirmation signal transmission unit and transmission data transmission unit, and the recording medium according to the present invention includes the information A processing program is recorded.

  When this communication control program is executed by a computer, the computer operates as the data transmission device. Accordingly, since the position and direction of the data transmitting device relative to the data receiving device can be determined by simple operations, the data transmitting device and the data receiving device that perform communication can be held at appropriate positions, so that a poor communication state Can be avoided, and the number of retries due to errors can be reduced. Thereby, there is an effect that data transmission by communication can be completed in a short time.

  As described above, the data transmission device according to the present invention includes a reception state confirmation signal transmission unit that transmits a reception state confirmation signal for confirming a reception state in the data reception device, and data held in the data transmission device. The reception status confirmation signal transmission means transmits the reception status confirmation signal before transmitting the data.

  Thus, by transmitting the reception status confirmation signal before transmitting data, there is an effect that data transmission becomes possible after grasping the reception status of the data receiving device.

  On the other hand, the data transmission / reception method according to the present invention, as described above, is held in the reception state confirmation signal transmitting step for transmitting a reception state confirmation signal for confirming the reception state in the data reception device, and held in the data transmission device. A transmission data transmission step of transmitting the received data, wherein the reception status confirmation signal transmission step transmits the reception status confirmation signal before transmitting the data.

  Thus, by transmitting the reception status confirmation signal before transmitting data, there is an effect that data transmission becomes possible after grasping the reception status of the data receiving device.

[First Embodiment]
As an embodiment of the transmission apparatus of the present invention, an embodiment in which a mobile terminal is used as one transmission apparatus and the other as a reception apparatus will be described below.

  The system according to the present embodiment will be described below with reference to FIGS.

  FIG. 2 shows an example of infrared communication as a proximity wireless communication method between portable terminals in the present embodiment. In this example, two portable terminals on the transmission side and the reception side are held in a state where infrared communication can be performed. The example shown in the present embodiment is an example in which data stored in the transmission side portable terminal is transferred to the reception side portable terminal by infrared communication.

<About the block diagram of this embodiment>
In FIG. 3, the block diagram of the portable terminal of this embodiment is shown. The mobile terminal 100 includes, as main parts, an operation unit (operation unit) 10, an Ir transmission unit (reception state confirmation signal transmission unit / transmission data transmission unit) 20, an Ir reception unit 21, an indicator 40, a display unit 50, and a main control unit. 60, and a program memory 70.

  The main control unit 60, the display unit 50, the operation unit 10, the Ir transmission unit 20, the Ir reception unit 21, the indicator 40, the program memory 70, and the like are connected.

  The main control unit 60 executes the program stored in the program memory 70 and, if necessary, the following members, that is, the operation unit 10, the Ir transmission unit 20, the Ir reception unit 21, the indicator 40, and the display unit 50. Control etc. Thereby, the portable terminal of this embodiment can implement | achieve various functional blocks, and can operate said each member as a portable terminal.

  The display unit 50 is a block that displays the transmission / reception state of infrared signals, various instruction displays, transmission confirmation in advance when image data is transmitted by communication, image content after reception, etc., and is realized by, for example, a liquid crystal panel Is done.

  The operation unit 10 is a block that accepts an operation instruction input. For example, the operation unit 10 includes a button for instructing a communication state for performing infrared data communication, an instruction for an actual data transmission / reception operation, and the like, and has an operation input function. ing. In the case of the above configuration, as a button having a three-step function that is a multi-operation button as a transmission button, the first step is a state in which nothing is selected, and the second step and the third step are functions corresponding to each. Is configured to operate. Here, the reception state confirmation mode is selected by selecting the second step, and the data communication mode is selected by selecting the third step of the transmission button.

  As another configuration, a function button for selecting the reception state confirmation mode and a function button for selecting the data communication mode may be separately provided on the operation unit 10. Note that the reason why it is desirable to use the send button with the three-step function in the above configuration is that the mobile terminal is often held by hand during infrared communication, and a good position is confirmed in the reception status confirmation mode. In order to give an instruction to switch to the data communication mode without shifting the position of the mobile terminal, the movement of the finger that gives the instruction is minimal, and the three-step function button is pressed until the second and third steps. This is because a multi-operation button in which operations are combined into one button is desirable.

  The Ir transmission unit 20 is a block that transmits an infrared signal, and includes an infrared LED or the like. The Ir receiving unit 21 is a block that receives an infrared signal, and includes an infrared sensor or the like. The main control unit 60 is a block that performs various controls and processes of the mobile terminal.

  The indicator 40 is configured by an LED or the like, and is a block that indicates to the user the reception state of the infrared signal when turned on.

  In addition, the main control unit 60 transmits image data, video data, audio data, and other information data stored in a large-capacity memory 71 connected to the main control unit 60 to a wireless unit under the control of the main control unit 60. 80 to another terminal or device. The radio unit 80 is controlled by the communication control unit 81 based on a predetermined protocol necessary for transmission based on an instruction from the main control unit 60.

  The basic configuration of the camera 90 includes an optical system 91, an image sensor 92, and a video signal processing unit 93 that processes captured video information. The captured video information is stored in or stored in the large-capacity memory 71. It can also be transmitted to other terminals and devices through the wireless unit 80 from the state.

  Here, even if the storage location of the captured video information is not the large-capacity memory 71, a work memory (not shown) in which a part or all of the video information is temporarily stored can be stored in the main control unit 60. If there is, it may be accumulated in it.

  The memory 72 corresponds to a telephone book 73 for storing telephone numbers, a number preset area 74 for storing frequently called parties, a message preset area 75 for storing frequently used voice messages and text messages, and telephone numbers. There is an address data area 76 for storing the address. In addition to these areas, the memory 72 may be provided with an area for storing the above-described captured video information.

  In addition, the captured image, video, and various data stored in the large-capacity memory 71 and the memory 72 can be transmitted to the other terminal, the device, the display monitor device, and the like through the Ir transmission unit 20.

  On the other hand, image data, video data, audio data, other information data, and the like can be transmitted to other terminals, devices, and the like by the transmission function of the RFID reader / writer 11 that is one of close proximity wireless communications.

  The transmission voice can be directly input from the microphone 12 through the voice processing unit 14 in addition to the voice data stored in the large-capacity memory 71 and the memory 72 described above. An external audio input terminal (not shown) may be provided, and other audio / music source sources may be connected thereto. In addition, the reproduction control of the microphone sound, the external input sound, and the sound information stored in the large-capacity memory 71 and the memory 72 is supplied to the speaker 13 through the sound processing unit 14 and output based on the control of the main control unit 60. The In addition to the speaker 13, an audio external output terminal (not shown) may be provided and connected to an external device.

  The GPS function unit 15 can add position information to the captured image and video information and store the added information in the large-capacity memory 71, the memory 72, or the like. The stored information can be displayed and viewed on the mobile terminal 100, a proximity wireless device, a wired or wirelessly connected device, and the like.

  The vibration sensor 16 may detect a shake, vibration, tilt, or the like of the mobile terminal 100 to detect an operation, a deviation from a predetermined position, or the like, and perform a notification to call attention. The operation in this case may be information in which information such as tapping and shaking is associated with the operation instruction.

  In the case of close proximity wireless communication, the positional relationship with the communication partner may be important. For example, in the case of infrared communication, since directivity is strong, an error may occur if there is a large hand shake at the operation stage after the direction is determined.

  In addition, in infrared communication, it is necessary to be close to a predetermined position, and a positional shift during communication greatly affects the quality of communication. Therefore, it is important to call attention by detecting shaking, vibration, tilt, etc. of this terminal during communication.

  As an example of the power supply, the battery 30 and the power supply control unit 31 that controls the battery 30 are exemplified. However, if a long communication time is required, the power can be supplied from the outside if the environment can be supplied. good.

<Operation of mobile terminal during communication>
In the following description, as shown in FIG. 2, it is assumed that the transmitting side and the receiving side portable terminal 100 are held close to each other. In addition, both the transmission-side portable terminal 100 and the reception-side portable terminal 100 are configured as shown in the block diagram of FIG. 3 and are described as systems using infrared communication, which is one of close proximity wireless communication. .

  In addition, as long as at least one of the transmission-side and reception-side mobile terminals is a transmission-side mobile terminal or a reception-side mobile terminal that operates in the same manner as described below, the other mobile terminal may have another configuration.

  First, when the transmission-side portable terminal enters the reception state confirmation mode, the transmission-side portable terminal accepts the second operation of the multi-operation button described above. The main control unit 60 instructs the Ir transmission unit 20 to transmit a repetitive signal having a certain period, which is a reception state confirmation signal, based on the reception state confirmation mode selection instruction received by the operation unit 10. The Ir transmission unit 20 transmits a reception state confirmation signal using infrared rays based on an instruction from the main control unit 60.

  Next, the Ir receiving unit 21 of the reception-side mobile terminal detects the reception state confirmation signal by directing the infrared transmission direction of the transmission-side mobile terminal that is transmitting the reception state confirmation signal to the reception-side mobile terminal. In the receiving-side portable terminal, the main control unit 60 receives from the Ir receiving unit 21 that the reception state confirmation signal has been detected and the signal strength of the signal, and the signal strength exceeds a predetermined value and is at an appropriate strength level. It is determined whether or not there is a signal strength that allows normal data communication. If it is determined that the signal strength is an appropriate strength level, the main control unit 60 notifies that the reception state confirmation signal is received well.

  The notification method may be notified by the indicator 40 of the receiving portable terminal, may be notified by displaying a message on the display unit 50 of the receiving portable terminal, or generated by the receiving portable terminal. Voice notification may be used. In addition, the reception-side mobile terminal may notify the transmission-side mobile terminal by the indicator 40 of the transmission-side mobile terminal by automatically notifying that the reception status confirmation signal is well received by infrared communication. The notification may be made by displaying a message on the display unit 50 of the transmission-side portable terminal, or by sound generated by the transmission-side portable terminal. Notifying that the reception state of the reception state confirmation signal is good as well as notifying that the current reception state is good, so alert the user not to move the position and direction of the transmitting and receiving mobile terminals You may include the message of the contents to do.

  In addition, in the above configuration, the configuration for informing when reception of the reception state confirmation signal is good has been described, but in addition to this, when the signal strength of the reception state confirmation signal has not reached an appropriate strength level, A configuration may be adopted in which the signal strength of the reception state confirmation signal is weak, that is, notification that the brightness of irradiation is insufficient and that the interval between the transmission-side portable terminal and the reception-side portable terminal is adjusted.

  If the data communication mode is selected by operating the third step of the multi-operation transmission button while the reception of the reception status confirmation signal is informed, the mobile terminal on the transmission side and the reception side Is switched from the reception state confirmation mode to the data communication mode, and the data held in the transmission side portable terminal is transferred to the reception side portable terminal.

  Note that, in the above configuration, when the data communication mode is selected by operating the third step of the multi-operation transmission button while the reception of the reception status confirmation signal is informed, the transmission is performed. Although the data held in the side portable terminal is transferred to the receiving side portable terminal, the embodiment is not limited to this. That is, in the above notification, the mobile terminal confirms the reception state in the reception state confirmation mode, and when the reception state is good, the mobile terminal shifts to the data communication mode next and the data held in the transmission side portable terminal In order to perform the transfer, the configuration may be a notification for requesting permission for data transfer. In this case, data is transferred between portable terminals after giving permission of transfer to the transmitting portable terminal by operating the third step of the multi-operation transmission button. Giving permission explicitly also has the effect of confirming the intention of fixing the mobile terminal.

  As another configuration, by using the normal 2-step function button as a transmission button and holding down the transmission button, the reception status confirmation signal reception status in the reception status confirmation mode is first confirmed, and the reception status is good. If so, a configuration may be adopted in which the mode is subsequently shifted to the data communication mode to transfer data.

<Reception status confirmation signal>
In this embodiment, in order to confirm the communication state by infrared rays between portable terminals, a reception state confirmation signal is sent from the portable terminal on the transmission side to the portable terminal on the reception side. As this reception status confirmation signal, it is desirable to use a repetitive signal with a fixed period rather than a simple blinking of the lamp. The reason is that by using the infrared signal of a repetitive signal with a fixed period not included in the external light, the infrared signal included in the external light is mistaken for the reception status confirmation signal on the receiving side mobile terminal, and malfunction can be prevented. It is.

<Communication procedure between mobile devices>
In FIG. 1, the example of the communication procedure between a transmission side portable terminal and a reception side portable terminal is shown. In this example, the main control unit 60 of the transmitting-side portable terminal transmits a reception state confirmation signal, which is a repetitive signal of a certain period, via the Ir transmission unit 20 in response to a selection instruction of the reception state confirmation mode via the operation unit 10. To send.

  The main control unit 60 of the reception-side portable terminal detects the reception state confirmation signal sent from the transmission-side portable terminal via the Ir reception unit 21, and enters the reception state confirmation mode. When the main control unit 60 of the reception-side mobile terminal receives the signal strength of the reception state confirmation signal from the Ir reception unit 21, and determines that the signal strength is a signal strength that allows normal data communication, the reception state confirmation signal Is notified by the indicator 40 of the receiving portable terminal. Here, as shown by the dashed arrow in FIG. 1, the receiving-side portable terminal may notify the receiving-side portable terminal that the reception state confirmation signal is well received by infrared communication from the receiving-side portable terminal. . In this case, the transmitting-side portable terminal that has received a good reception of the reception state confirmation signal may notify that the reception state confirmation signal is well received by the indicator 40 or the like.

  When receiving a selection instruction via the operation unit 10, the main control unit 60 of the transmission-side portable terminal transmits a data transfer request via the Ir transmission unit 20 using infrared rays. In addition, the main control unit 60 of the transmission-side portable terminal reads data to be transferred to the reception-side portable terminal that is stored in the memory or the large-capacity memory. Note that the transfer data may be read after receiving a data transfer permission message (described later) from the receiving-side portable terminal.

  When receiving the data transfer request message from the transmission side portable terminal, the main control unit 60 of the reception side portable terminal determines whether the data transferred from the transmission side portable phone can be accepted. A data transfer permission message is sent to the transmitting portable terminal via the Ir transmitter 20.

  When the transmission-side portable terminal receives the data transfer permission message from the reception-side portable terminal, the transmission-side portable terminal starts transmission of the read stored data. The receiving mobile terminal sequentially reproduces the received data. The reproduction time varies depending on the amount of data transmitted from the transmission-side portable terminal. In the above description, the received data is sequentially reproduced. However, the data may be sequentially reproduced and saved, or may be saved only in a memory or a large-capacity memory without being reproduced.

  When the transfer of the stored data that has been read is completed, the transmission-side portable terminal sends a transfer end message. The receiving-side portable terminal that has received the transfer end message sends out a reception completion notification message, and all communication procedures are completed when the transmitting-side portable terminal receives the reception completion notification message. Here, the reception-side mobile terminal may omit sending the reception completion notification message.

[Second Embodiment]
As an embodiment of the transmission apparatus of the present invention, an embodiment in a system in which a television receiver is a transmission apparatus and a mobile terminal is a reception apparatus will be described below.

  The system according to this embodiment will be described below with reference to FIGS. 3, 4, and 5. FIG.

  FIG. 4 shows an example of communication between the television receiver and the portable terminal in this embodiment. In this example, the portable terminal on the receiving side is held in a state where infrared communication can be performed with the television receiver. The example shown in this embodiment is an example in which data stored in a television receiver is transferred to a mobile terminal by infrared communication, and the mobile terminal takes the transferred data into the mobile terminal.

<About the block diagram of this embodiment>
FIG. 5 shows a block diagram of the television receiver of this embodiment. Since the block diagram of the portable terminal is the same as that shown in FIG. 3 in the first embodiment, the block diagram and description are omitted.

  The television receiver 101 receives a television signal from the antenna 82, and the tuner unit 83 selects only a specific broadcast station signal from the television signal. A predetermined video signal, an audio signal, a metadata information signal, and the like are identified by the television signal processing unit 84 and the signal is appropriately processed by each processing unit.

  Here, after the audio signal is processed by the audio processing unit 85, the audio signal may be output to the outside through an audio transmission unit such as the speaker 17, or a television receiver as an audio signal (not shown). The data may be output to an external device connected to 101.

  Further, the video signal is supplied to the display unit 51 as a predetermined signal that can be displayed by the video processing unit 86 and is displayed. Here, the video signal may be processed by the video processor 86 and then output to an external device connected to the television receiver as a video signal (not shown).

  The content of the metadata information varies depending on the program, but is used for purposes related to the display / audio control of the received program.

  In addition to the above, the display unit 51 is a block that displays content contents by transmission / reception of infrared signals, displays transmission / reception status of infrared signals, and displays various instructions, and is realized by, for example, a liquid crystal panel. The Ir transmission unit 22 is a block that transmits an infrared signal, and includes a drive unit 23 and a light emitting element 24 such as an infrared light emitting LED. The Ir receiving unit 25 is a block that receives an infrared signal, and includes a light receiving element 27 such as an infrared sensor and a detection unit 26.

  The main control unit 61 is a block that performs various processes of the television receiver 101.

  The main control unit 61 is connected to a communication function unit 87 used as the television receiver 101, an Ir transmission unit 22, an Ir reception unit 25, an indicator 41, and a storage unit 77.

  The main control unit 61 executes the program stored in the storage unit 77 and, as necessary, the above-described members, that is, the communication function unit 87, the Ir transmission unit 22, the Ir reception unit 25, the indicator 41, and a display. The unit 51 is controlled. Thereby, the television receiver of this embodiment can implement | achieve various functional blocks, and can operate said each member as a television receiver.

  As described above, the storage unit 77 stores the information received by the television receiver 101 temporarily or for a long time when the information is transmitted to the other device through the Ir transmission unit 22 or from the other device through the Ir reception unit 25. It also has a function of temporarily or long-term storing the obtained video, image, audio, and other data. In addition, the video, image, audio, and other data stored in the storage unit 77 are transmitted to the terminals connected to the network through the communication function unit 87, or received from those terminals and stored in the storage unit 77. You can also do it.

<Operation of television receiver and mobile terminal during communication>
First, when the television receiver 101 is in the reception state confirmation mode, the main control unit 61 instructs the Ir transmission unit 22 to send a repetitive signal having a certain period, which is a reception state confirmation signal. The Ir transmission unit 22 transmits a repetitive signal with a fixed period using infrared rays based on an instruction from the main control unit 61.

  Next, if the Ir receiver 21 of the mobile terminal is in a position where the infrared signal can be received with respect to the television receiver 101 that transmits a repetitive signal of a fixed period by infrared, the Ir receiver 21 of the mobile terminal Detects a repetitive signal of a certain period by infrared rays. In the portable terminal, the main control unit 60 receives from the Ir receiving unit 21 that a repetitive signal having a certain period as a reception state confirmation signal has been detected and the signal strength information of the signal, and the signal strength is an appropriate strength level. Whether the signal strength is such that data communication can be normally performed. If it is determined that the signal strength is an appropriate strength level, the main control unit 60 notifies that the reception state confirmation signal is received well.

  The notification method may be notified by the indicator 40 of the portable terminal, may be notified by displaying a message on the display unit 50 of the portable terminal, or may be notified by sound generated by the portable terminal. .

  The portable terminal transmits a data transfer permission message to the television receiver 101 by infrared communication in response to a data transmission instruction in a state in which the reception of the reception state confirmation signal is informed from the portable terminal. . Thereafter, the mobile terminal switches to the data communication mode in order to receive data transferred from the television receiver 101 and waits for transmission of data from the television receiver 101. Note that the instruction to switch to the data communication mode may be received by pressing a reception button provided on the operation unit 10.

  When the television receiver 101 receives a data transfer permission message from the portable terminal, the television receiver 101 switches to the data communication mode and starts transferring video data, audio data, and other content data to the portable terminal. The portable terminal captures and stores the sequentially transferred data in the portable terminal.

  In the above description, the operation when the mobile terminal receives an instruction to switch to the data communication mode while the mobile terminal is informed that reception of the reception status confirmation signal is good has been described. The terminal may be configured to automatically transmit a data transfer permission message to the television receiver 101 after starting to receive the transfer data after determining that the reception state confirmation signal is received well. However, in the configuration in which the mobile terminal automatically transmits the data transfer permission message and receives the transfer data, the mobile terminal does not deteriorate the reception state of the infrared signal during the data transfer. Since it is necessary to call attention so as not to change the position and direction of the mobile phone carelessly, the mobile terminal is configured to notify that data is currently being transferred via the indicator 40 or the display unit 50. Is desirable.

  Similar to the communication procedure between portable terminals in the first embodiment, the communication operation is completed after all data to be transferred from the television receiver is transferred. In addition, the mobile terminal may perform a data transfer stop operation to stop the data transfer and complete the communication operation. In order for the portable terminal to receive a data transfer stop instruction from the user, a dedicated stop button may be provided on the operation unit 10, or a stop instruction may be received by re-pressing the reception button. In addition, the interrupted reception may be resumed by pressing any button of the portable terminal.

  When the mobile terminal receives a data transfer stop instruction from the user, the mobile terminal ends the data reception operation and transmits a transfer stop message to the television receiver 101. The television receiver 101 that has received the transfer stop message stops data transfer at that time, and completes the communication operation without transmitting a transfer end notification message to the mobile terminal.

<Communication procedure between television receiver and mobile terminal>
Since the communication procedure between the television receiver and the portable terminal is the same as that in the first embodiment in which the transmission-side portable terminal is replaced with the television receiver, description thereof is omitted.

[Third Embodiment]
As an embodiment of the transmission apparatus of the present invention, an embodiment in a system in which a portable terminal is a transmission apparatus and a television receiver is a reception apparatus will be described below.

  The system according to this embodiment will be described below with reference to FIGS. 3, 4 and 5. FIG.

  FIG. 4 shows an example of communication between the television receiver and the portable terminal in this embodiment. In this example, the portable terminal on the transmission side is held in a state where infrared communication can be performed with the television receiver. In the example shown in this embodiment, data stored in a mobile terminal is transferred to a television receiver by infrared communication, and the television receiver displays the transferred data as a video on the television receiver. It is an example of reproducing audio.

<About the block diagram of this embodiment>
The block diagrams of the portable terminal and the television receiver 101 of this embodiment are the same as those shown in FIG. 3 in the first embodiment and those shown in FIG. 5 in the second embodiment. Therefore, the block diagram and description are omitted.

<Operation of portable terminal and television receiver during communication>
First, the portable terminal accepts an instruction to select the reception state confirmation mode by the second step operation of the multi-operation button. The main control unit 60 of the portable terminal instructs the Ir transmission unit 20 to send a repetitive signal having a certain period, which is a reception state confirmation signal, based on the reception state confirmation mode selection instruction received by the operation unit 10. . The Ir transmission unit 20 transmits a reception state confirmation signal using infrared rays based on an instruction from the main control unit 60.

  Next, by directing the infrared transmission direction of the mobile terminal that is transmitting the reception status confirmation signal to the television receiver 101, the Ir transmission / reception unit 25 of the television receiver 101 transmits a repetitive signal of a fixed period using infrared rays. Detect. In the television receiver 101, the main control unit 61 receives from the Ir transmission / reception unit 25 that the reception state confirmation signal has been detected and the signal strength of the signal, and the signal strength exceeds a predetermined value and an appropriate strength level. Whether the signal strength is such that data communication can be normally performed. When it is determined that the signal strength is an appropriate strength level, the main control unit 61 notifies that the reception state confirmation signal is received well.

  The notification method may be notified by the indicator 41 of the television receiver 101, may be notified by displaying a message on the display unit 51 of the television receiver 101, or may be performed by the television receiver 101. Notification by the generated sound may be used. In addition, the television receiver 101 may notify the mobile terminal that reception of the reception status confirmation signal is good by infrared communication and may notify the mobile terminal with an indicator 40 on the mobile terminal, or on the display unit 50 of the mobile terminal. You may alert | report by the display of the message to or may alert | report by the sound generated with the portable terminal.

  When the main control unit 60 of the portable terminal receives a selection instruction for the data communication mode in a state where the reception of the reception state confirmation signal is informed, the mobile terminal main control unit 60 sends a data transfer request via the Ir transmission unit 20 to the infrared ray. To send. In addition, the main control unit 60 of the mobile terminal reads data to be transferred to the television receiver 101 that is stored in a memory or a large-capacity memory. Note that. The transfer data may be read after receiving a data transfer permission message from the television receiver 101.

  When receiving the data transfer request message from the mobile terminal, the main control unit 61 of the television receiver 101 determines whether the data transferred from the mobile phone can be accepted. On the other hand, a data transfer permission message is sent via the Ir transmitter 22.

  When the portable terminal receives a data transfer permission message from the television receiver 101, the portable terminal starts transmission of the read stored data. The television receiver 101 sequentially reproduces the received data. The reproduction time varies depending on the amount of data transmitted from the mobile terminal.

  In the above description, the received data is sequentially reproduced. However, the data may be reproduced and stored sequentially, or may be stored only in a memory or a large-capacity memory without being reproduced.

  When the portable terminal finishes transferring the read stored data, it sends a transfer end message. Receiving the transfer end message, the television receiver 101 transmits a reception completion notification message, and all communication procedures are completed when the mobile terminal receives the reception completion notification message.

  Similar to the communication procedure between portable terminals in the first embodiment, the communication operation is completed after all data to be transferred to the television receiver is transferred. In addition, the mobile terminal may perform a data transfer stop operation to stop the data transfer and complete the communication operation. In order for the portable terminal to receive a data transfer stop instruction from the user, a dedicated stop button may be provided on the operation unit 10, or a stop instruction may be received by re-pressing the reception button.

  When the mobile terminal receives a data transfer stop instruction from the user, the mobile terminal ends the data transfer operation and transmits a transfer stop message to the television receiver 101. Receiving the transfer stop message, the television receiver 101 stops receiving data at that time and completes the communication operation.

<Supplementary items>
The present invention is not limited to the above-described embodiments, and various modifications are possible within the scope shown in the claims, and embodiments obtained by appropriately combining technical means disclosed in different embodiments. Is also included in the technical scope of the present invention.

  Finally, each block of the mobile terminal 100 and the television receiver 101, in particular, the main control units 60 and 61 may be configured by hardware logic, or may be realized by software using a CPU as follows. Good.

  That is, the portable terminal 100 and the television receiver 101 are configured such that a CPU (central processing unit) that executes instructions of a control program that realizes each function, a ROM (read only memory) that stores the program, and a RAM that expands the program. (Random access memory), a storage device (recording medium) such as a memory for storing the program and various data. An object of the present invention is to make it possible for a computer to read program codes (execution format program, intermediate code program, source program) of control programs for the portable terminal 100 and the television receiver 101, which are software for realizing the functions described above. This can also be achieved by supplying the recorded recording medium to the portable terminal 100 and the television receiver 101, and the computer (or CPU or MPU) reads and executes the program code recorded on the recording medium. .

  Examples of the recording medium include a tape system such as a magnetic tape and a cassette tape, a magnetic disk such as a floppy (registered trademark) disk / hard disk, and an optical disk such as a CD-ROM / MO / MD / DVD / CD-R. Card system such as IC card, IC card (including memory card) / optical card, or semiconductor memory system such as mask ROM / EPROM / EEPROM / flash ROM.

  Further, the portable terminal 100 and the television receiver 101 may be configured to be connectable to a communication network, and the program code may be supplied via the communication network. The communication network is not particularly limited. For example, the Internet, intranet, extranet, LAN, ISDN, VAN, CATV communication network, virtual private network, telephone line network, mobile communication network, satellite communication. A net or the like is available. Further, the transmission medium constituting the communication network is not particularly limited. For example, even in the case of wired such as IEEE 1394, USB, power line carrier, cable TV line, telephone line, ADSL line, etc., infrared rays such as IrDA and remote control, Bluetooth ( (Registered trademark), 802.11 wireless, HDR, mobile phone network, satellite line, terrestrial digital network, and the like can also be used. The present invention can also be realized in the form of a computer data signal embedded in a carrier wave in which the program code is embodied by electronic transmission.

  According to the present invention, since the state of infrared communication can be determined with a simple operation, the terminal that performs communication can be held at an appropriate position. Therefore, by reducing the number of retries due to errors by avoiding a bad communication state, data transmission by infrared communication can be completed in a short time. Since the transmission device and the data communication system having the above effects can be realized, the present invention can be used widely and suitably in various systems including a mobile phone and a portable electronic device that perform infrared communication.

In the 1st Embodiment of this invention, it is a figure which shows the example of the communication procedure at the time of performing communication between a transmission side portable terminal and a reception side portable terminal. It is. BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows the 1st Embodiment of this invention and shows a mode that infrared communication is performed between portable terminals. It is a block diagram of a portable terminal in each embodiment of the present invention. FIGS. 2A and 2B illustrate the second and third embodiments of the present invention and are diagrams illustrating a state in which infrared communication is performed between a portable terminal and a television receiver. FIG. It is a block diagram of the television receiver in the 2nd and 3rd embodiment of this invention.

Explanation of symbols

10 Operation part (operation means)
11 RFID reader / writer 12 Microphone 13 Speaker 14 Audio processing unit 15 GPS function unit 16 Vibration sensor 17 Speaker 20 Ir transmission unit (reception status confirmation signal transmission unit / transmission data transmission unit)
21 Ir receiver 22 Ir transmitter (reception state confirmation signal transmission means / transmission data transmission means)
23 Drive unit 24 Light emitting element 25 Ir receiving unit 26 Detection unit 27 Light receiving element 30 Battery 31 Power supply control unit 40 Indicator 41 Indicator 50 Display unit 51 Display unit 60 Main control unit 61 Main control unit 70 Program memory 71 Large capacity memory 72 Memory 77 Storage unit 80 Wireless unit 81 Communication control unit 82 Antenna 83 Tuner unit 84 Television signal processing unit 85 Audio processing unit 86 Video processing unit 87 Communication function unit 90 Camera 91 Optical system 92 Image sensor 93 Video signal processing unit 100 Mobile terminal 101 Television Receiver

Claims (9)

In a data reception device that informs a reception state and a portable data transmission device that communicates by a near field communication method using a communication medium having directivity ,
A reception state confirmation signal transmitting means for transmitting a reception state confirmation signal for confirming a reception state in the data receiving device;
Transmission data transmission means for transmitting data held in the portable data transmission device ;
A single button having a function of instructing the reception state confirmation signal transmission means to transmit a reception state confirmation signal, and a function of instructing the transmission data transmission means to transmit data;
With
The portable data transmission device, wherein the reception status confirmation signal transmitting means transmits the reception status confirmation signal before transmitting the data. The portable data transmission device according to claim 1, wherein the reception status confirmation signal is a repetitive signal having a constant period. The portable data transmission device according to claim 1 , wherein the button is a two-stage push button that can be pressed in two stages. The portable data transmission device according to claim 1 or 2, wherein the button instructs the transmission data transmission unit to transmit data when the button is continuously pressed for a predetermined time. The transmission data transmitting means, wherein when the received is notified from the data receiver in good condition, and transmits the data, portable according to any one of claims 1 to 4 Data transmission device. In a data communication system that performs data communication using a proximity communication method using a communication medium having directivity ,
A portable data transmission device according to any one of claims 1 to 5;
A data communication system comprising a data receiving device for notifying a reception state of the reception state confirmation signal transmitted from the portable data transmission device. In a data transmission / reception method in which a portable data transmission device is used to communicate with a data reception device that notifies a reception state, and a proximity communication method using a communication medium having directivity ,
A reception state confirmation signal transmission step of transmitting a reception state confirmation signal for confirming a reception state in the data receiving device;
A transmission data transmission step of transmitting data held in the portable data transmission device ;
Including
Transmission of the reception status confirmation signal in the reception status confirmation signal transmission step and transmission of data in the transmission data transmission step are instructed by operating a single button provided in the portable data transmission device. And
In the reception state confirmation signal transmission step, the reception state confirmation signal is transmitted before the data is transmitted. A communication control program for causing a computer to function as each means of the portable data transmission device according to any one of claims 1 to 5. A computer-readable recording medium on which the communication control program according to claim 8 is recorded.

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