JP2768052B2 - Group work system and group work individual work simultaneous execution system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a group work system performed between a plurality of terminals.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG.
1 and a keyboard 62 are directly connected one to one, and a display monitor 63 is connected to the processing device 61 to form one terminal 60. Examples of such terminals include workstations and personal computers. An example of a group work in which the same application program is executed between a plurality of terminals using such a terminal will be described with reference to FIG. Here, the group work means that the same application program operates between multiple terminals,
This means an application that obtains the same output information for the same input information in all terminals. As an example, a simultaneous editing operation for the same document in a conference held between a plurality of terminals can be considered. During the meeting, the same document file and the same application program for editing the document are running on each terminal, and the document editing command input from each terminal during the meeting is distributed to the application program of each terminal to edit the document. Then, after the meeting, a document file having the same content is obtained in all terminals. In the following, the prior art will be described with reference to an example of document editing as an example of group work.

[0003] Referring to FIG.
1, 31 and terminals 1, 2, 3 having keyboards 12, 22, 32, respectively. 53, the same application program for editing a document is activated in the processing device of each terminal, and the same document file is held in each processing device.

The keyboard 1 of the terminal 1 shown in FIG.
The terminal 1, by the document editing command input from the terminal 2,
The state of the operation of editing the document files owned by a few will be described with reference to FIG.

In FIG. 13, a terminal 1 has a document editing application program 13 and a document file 15 activated in the processing device, and a terminal 2 has a document editing application program 23 and a document file activated in the processing device. File 25, and the terminal 3 is a document editing application program 33 running in the processing device.
And a document file 35. Here, it is assumed that the application programs 13, 23, and 33 have the same functions, and the document files 15, 25, and 35 have the same contents.

FIG. 13 also shows a sequence example showing the operation. In the figure, a document editing command is input from the keyboard 12 of the terminal 1 to the application program 13 via the keyboard input interface 14 (step P).
1). Next, the application program 13 edits the document file 15 of the terminal itself according to the command (step P2), and then transmits the received command to the center processing device 40 (step P3). Center processing unit 40
Transmits the received command to the application programs 23 and 33 of the terminal 2 and the terminal 3 (step P
4). The application program 23 of the terminal 2 edits the document file 25 of the terminal itself according to the received command (step P5), and similarly, the application program 33 of the terminal 3 edits the document file 35 of the terminal itself according to the received command (step P5). ).

[0007]

As shown in FIG. 13, in a conventional group work system, a command input from a keyboard is first processed by an application program, and the application program transmits the command to an application program of another terminal. I was For this reason, each application program needs a command communication function, and a new communication function must be added to the application program in order to apply a locally used application program to group work. There is. In addition, their communication functions differ depending on each application program.
There is a drawback that it has to be changed for group work corresponding to each. Furthermore, there is a disadvantage that personal work cannot be performed during group work.

An object of the present invention is to provide a group work system capable of performing a group work by using an existing application program as it is. Another object of the present invention is to provide a group work system capable of performing a group work by using an existing application program as it is and also performing a personal work at the same time.

[0009]

Means for Solving the Problems To solve the above-mentioned problems, means provided by the first invention of the present application are a command input means, an information processing means having an application program execution and data storage function, and a display means. A plurality of terminal systems each having a command information exchange unit, a display information exchange unit, and a communication control unit; and a center unit having a command information exchange unit, a display information exchange unit, a data exchange unit, and a communication control unit. The plurality of terminal systems are connected to the center device via the communication control means, and command information input from the command input means of the terminal system is transmitted to the terminal system by the command information exchange means of the terminal system. And the command information exchange means of the center device. Through the command information exchange means of the selected terminal system, the information is input to the information processing means of the selected terminal system, and the information processing means in which the command information is input executes an application program according to the command, The display information output from the information processing means is input to the display means of the terminal system by the display information exchange means of the terminal system, and at the same time, the display information exchange means of the center device and the display information of all other terminal systems. The data input to the display means via the exchange means, and output data from the application program are stored in all other information processing means via the data exchange means of the center device.

[0010]

Means provided by the second invention of the present application to solve the above-mentioned problems include a command input means, an information processing means having an application program execution and data storage function, a display means, and a command information exchange means. A plurality of terminal systems each having a display signal synthesizing unit and a communication control unit; and a center device having a shared information processing unit, a display signal distributing unit, and a communication control unit. Command information that is connected to the center device via control means and input from command input means of the terminal system is transmitted to the information processing means of the terminal system or the center device by the command information exchange means of the terminal system. The command information is input to the shared information processing means, A personal work program is executed in accordance with the command, a display signal output from the information processing means is input to a display signal synthesizing means of the terminal system, and the shared information processing means to which the command information is input cooperates in accordance with the command. A display signal output from the shared information processing unit is executed by the display program distributing unit, and the display signal synthesizing unit of each terminal system is input to the display signal synthesizing unit. The information processing means of the system and the display means from the shared information processing means of the center device are combined, and the result of the personal work program and the result of the cooperative work program are simultaneously displayed on the display means of the terminal system.

[0012]

In the group work system according to the first aspect of the present invention, command input means such as a keyboard and a mouse, information processing means such as a CPU, and the like are provided in any combination among a plurality of terminal systems connected via a network. A display means such as a display monitor is connected, command information input from the command input means is processed by an application program of information processing means connected via a communication line via a center device, and the processing result is connected via a communication line. Displayed on multiple display monitors.

[0013]

In the group work individual work simultaneous execution system according to the second aspect of the present invention, a command input means such as a keyboard or a mouse of the terminal system is provided between the plurality of terminal systems connected via a network and the center device. It is connected to the shared information processing means and executes the cooperative work program, and at the same time, is also connected to the information processing device of the terminal system and executes the personal work program. Display at the same time.

[0015]

FIG. 1 is a diagram showing a system configuration of an embodiment of a group work system according to the first invention of the present application. This figure shows an example in which three terminal systems are connected to a center device.

The terminal system 110 includes a communication control unit 111
Command information exchange means 112, display information exchange means 113, command input means 114 such as a keyboard and a mouse, information processing means 115 having an application program execution and data storage function, and display means 116 such as a display monitor. It is composed of

Similarly, the terminal system 120 includes a communication control means 121, a command information exchange means 122, a display information exchange means 123, a command input means 124, an information processing means 125, and a display means 126.

Similarly, the terminal system 130 includes a communication control unit 131, a command information exchange unit 132, a display information exchange unit 133, a command input unit 134, an information processing unit 135, and a display unit 136.

The center device 100 comprises command information exchange means 101, data exchange means 102, display information exchange means 103 and communication control means 104.

In the following, as an example, the group work for document editing described in the example of the prior art will be considered as an example. This will be described with reference to FIGS.

Referring now to FIGS.
It is assumed that an application program for editing a document is activated in the information processing means 115, and a document file is also held in the information processing means 115. In the following, the document processing application program activated by the information processing means 115 of the terminal system 110 is
The state of use between 10, 120, and 130 will be described.

FIG. 2 shows a situation in which a user of the terminal system 110 uses the document editing program started by the information processing means 115 and simultaneously refers to the result in all terminal systems. First, a keyboard (KB), which is an example of a command input unit of the terminal system 110, is connected to the information processing unit 115 by the command information exchange unit 112. Edit the document. Display information indicating the state of editing is input to the display information exchange means 113. Display information exchange means 1
In step 13, first, the input display information is output to a display monitor 116, which is an example of a display unit, to display a state of editing. At the same time, the display information exchange unit 113 transmits the display information to the center device 100 via the communication control unit 111. In the center device 100, when the display information is received by the communication control means 104, the display information is output to the display information exchange means 103, and the display information exchange means 103 branches the input display information. System 120 and terminal system 130. In the terminal system 120, when the display information is received by the communication control means 121, the display information is output to the display information exchange means 123, and the input display information is output to the display monitor 126 to display the state of editing. I do. Similarly, in the terminal system 130, when the display information is received by the communication control unit 131, the display information is output to the display information exchange unit 133, and the input display information is output to the display monitor 136 by the display information exchange unit 133. Displays the status of editing.

In this way, the user of the terminal system 110 can use the document editing program activated in the terminal system 110, and the result can be simultaneously referred to in all the terminal systems connected by the communication line.

Next, a case where the user of the terminal system 120 uses the document editing program started in the terminal system 110 in FIG. 2 will be described with reference to FIG. FIG.
The user of the terminal system 120 is
5 shows a state in which the document editing program started in step 5 is used and the results are simultaneously referred to in all terminal systems. First, a keyboard (KB), which is an example of a command input unit of the terminal system 120, transmits command information to the center device 100 via the command information exchange unit 122 and the communication control unit 111. Center device 100
Then, when the command information is received by the communication control unit 104,
Outputting command information to the command information exchange means 101,
The command information exchange means 101 transmits the input command information to the terminal system 110 via the communication control means 104. In the terminal system 110, the communication control unit 111
When command information is received by the
12 to output command information to the command information exchange means 1
In step 12, the input command information is output to the information processing means 115 in which the document editing program has been started, and the document editing program edits the document according to the input command information. Display information for displaying the state of editing is input to the display information exchange unit 113. Display information exchange means 113
First, the input display information is output to the display monitor 116 which is an example of a display unit, and the state of editing is displayed. At the same time, the display information exchange unit 113 transmits the display information to the center device 100 via the communication control unit 111.
In the center device 100, when the display information is received by the communication control means 104, the display information is output to the display information exchange means 103, and the display information exchange means 103 branches the input display information. System 1
20. Transmit to the terminal system 130. Terminal system 1
At 20, when the communication control means 121 receives the display information,
The display information is output to the display information exchange means 123, and the input display information is displayed on the display monitor 12 by the display information exchange means 123.
6 to display the state of editing. Similarly, in the terminal system 130, when the display information is received by the communication control unit 131, the display information is output to the display information exchange unit 133, and the display information exchange unit 133 outputs the display information to the display monitor 136 to edit the display information. Display the situation.

In this way, the user of the terminal system 120 can use the document editing program started by the terminal system 110, and the result can be simultaneously referred to by all the terminal systems connected by the communication line.

Next, distribution of data information such as the editing result of the document editing program will be described with reference to FIG. FIG.
, Data output from the document editing program activated by the information processing means 115 of the terminal system 110 is transmitted to the center apparatus 100 via the communication control means 111. In the center device 100, when data is received by the communication control means 104, the data is output to the data exchange means 102. The data exchange means 102 branches the input data and sends the data to the terminal system 12 via the communication control means 104.
0, transmitted to the terminal system 130. Terminal system 12
In the case of 0, when data is received by the communication control means 121, the data is output to the storage file of the information processing means 125 and stored. Similarly, in the terminal system 130, when data is received by the communication control unit 131, the data is output to the storage file of the information processing unit 135 and stored.

The keyboard in the first invention of the present application is an example of a command inputting means for information, and a general command inputting means such as a mouse, a handwriting tablet or the like can be used. The display monitor is an example of a display unit,
Any display device can be used. The present invention is applicable to any application program other than the document editing described in the embodiment. Further, in the embodiment of the present invention, the information processing means 11 of the terminal system 110 is used.
5 shows an example in which an application program is activated. However, different application programs are activated simultaneously in the terminal systems 120 and 130, and command information is similarly transmitted to the application programs from an arbitrary terminal system. It is also possible to send.

FIG. 5 is a diagram showing a system configuration of an embodiment of the group work system according to the second invention of the present application.
The figure shows an example in which three terminal systems are connected to a center device.

The terminal system 110 includes a communication control unit 111
Command information exchange means 112, command input means 114 such as a keyboard and a mouse, information processing means 115 having an application program execution function,
It comprises display means 116 such as a display monitor.

Similarly, the terminal system 120 includes a communication control unit 121, a command information exchange unit 122, a command input unit 124, an information processing unit 125, and a display unit 12.
6 is comprised.

Similarly, the terminal system 130 includes a communication control unit 131, a command information exchange unit 132, a command input unit 134, an information processing unit 135, and a display unit 13.
6 is comprised.

The center device 100 comprises a command information exchange means 101 and a communication control means 104.

In the following, as an example, the group work for document editing described in the example of the prior art will be considered as an example. This will be described with reference to FIGS.

In FIG. 6, it is assumed that the same application program for editing a document is activated in the information processing means 115 of the terminal system 110, the information processing means 125 of the terminal system 120, and the information processing means 135 of the terminal system 130. In the following, the word processing application programs will be referred to as terminal systems 110, 120, 13
An example will be described in which the terminal is used between 0 and the state of editing is simultaneously referred to in all terminal systems.

FIG. 6 shows a situation in which the user of the terminal system 110 uses the document editing program, and the results are simultaneously referred to in all terminal systems. First, a keyboard (KB) 114 as an example of a command input unit of the terminal system 110 is connected to an information processing unit 115 by a command information exchange unit 112. Information processing means 115
In the document editing program activated in the above, the document is edited according to the input command information. The state of editing is displayed on the display monitor 116. At the same time, the command information exchange unit 112 transmits the command information to the center device 100 via the communication control unit 111. In the center device 100, when the command information is received by the communication control unit 104, the command information is output to the command information exchange unit 101, and the command information exchange unit 101 branches the input command information.
It transmits to the terminal system 120 and the terminal system 130.
In the terminal system 120, when the communication control unit 121 receives the command information, it outputs the command information to the command information exchange unit 122, and the command information exchange unit 122 outputs the input command information to the information processing unit 125.
In the information processing means 125, the same document editing program as that of the information processing means 115 has been activated, and edits a document according to the input command information. The state of editing is displayed on the display monitor 126. The terminal system 130
Then, when the command information is received by the communication control means 131,
Outputting command information to the command information exchange means 132,
The command information exchange means 132 outputs the input command information to the information processing means 135. Information processing means 135
In this case, the same document editing program as that of the information processing unit 115 has been started, and the document is edited according to the input command information. The editing status is displayed on the display monitor 136.

In this way, the same processing result is obtained in all terminal systems by using the same document editing program activated in the information processing device of each terminal system according to the command information input in the terminal system 110. Can be

Next, a case where a user of the terminal system 120 edits a document by inputting a command will be described with reference to FIG.

FIG. 7 shows a situation in which the user of the terminal system 120 uses the document editing program, and the result is simultaneously referred to in all terminal systems. First, a keyboard (KB) 124 as an example of a command input unit of the terminal system 120 is connected to an information processing unit 125 by a command information exchange unit 122. Information processing means 125
In the document editing program activated in the above, the document is edited according to the input command information. The state of editing is displayed on the display monitor 126. At the same time, the command information exchange unit 122 transmits the command information to the center device 100 via the communication control unit 121. In the center device 100, when the command information is received by the communication control unit 104, the command information is output to the command information exchange unit 101, and the command information exchange unit 101 branches the input command information.
It transmits to terminal system 110 and terminal system 130.
In the terminal system 110, when the command information is received by the communication control unit 111, the command information is output to the command information exchange unit 112, and the command information exchange unit 112 outputs the input command information to the information processing unit 115.
In the information processing means 115, the same document editing program as that of the information processing means 125 is activated, and edits a document according to the input command information. The state of editing is displayed on the display monitor 116. The terminal system 130
Then, when the command information is received by the communication control means 131,
Outputting command information to the command information exchange means 132,
The command information exchange means 132 outputs the input command information to the information processing means 135. Information processing means 135
In this example, the same document editing program as that of the information processing unit 125 is started, and the document is edited according to the input command information. The editing status is displayed on the display monitor 136.

In this way, by using the same document editing program running in the information processing device of each terminal system according to the command information input in the terminal system 120, the same processing result can be obtained in all terminal systems. Can be

FIG. 8 is a diagram showing a system configuration of an embodiment of a group work individual work simultaneous execution system according to the third invention of the present application. The figure shows an example in which three terminal systems are connected to a center device.

The terminal system 110 includes a communication control unit 111
Command information exchanging means 112, display signal synthesizing means 117, command input means 114 such as a keyboard and a mouse, information processing means 115 having the function of executing a personal work program and storing data, and display means such as a display monitor 116.

The terminal system 120 includes a communication control unit 121
Command information exchanging means 122, display signal synthesizing means 127, command input means 124 such as a keyboard and a mouse, information processing means 125 having the function of executing a personal work program and storing data, and display means such as a display monitor 126.

The terminal system 130 has communication control means 131
Command information exchanging means 132, display signal synthesizing means 137, command input means 134 such as a keyboard and a mouse, information processing means 135 having a function of executing a personal work program and storing data, and display means such as a display monitor. 136.

The center device 100 comprises a shared information processing means 105 for starting a cooperative work program, a display signal distribution means 106 and a communication control means 104. In the following, as an example, a group work for the purpose of document editing described in the example of the related art will be considered as an example. This will be described with reference to FIGS.

In FIG. 9, in the information processing means 115 of the terminal system 110, a program for performing personal work of a user of the terminal system has been started. Similarly, the information processing means 125 of the terminal system 120 activates the personal work program of the user of the terminal system, and the information processing means 135 of the terminal system 130 activates the personal work program of the user of the terminal system. I have. In the information processing means of the center device 100, a document editing program for cooperative editing between the terminal systems is activated.

In the following description, each terminal system executes a personal work program and uses the document processing program activated by the shared information processing means 105 of the center apparatus 100 among the terminal systems 110, 120, and 130. explain.

FIG. 9 shows a situation in which the user of the terminal system 110 uses the document editing program started by the shared information processing means 101 and simultaneously refers to the result in all terminal systems. First, the terminal system 110
The keyboard (KB), which is an example of the command input unit, transmits the command information exchange unit 112 and the command information to the center device 100 via the communication control unit 111. In the center device 100, when the command information is received by the communication control unit 104, the command information is input to the shared information processing unit 105. The shared information processing means 105 executes the activated document editing program according to the input command information. A display signal indicating the state of execution is input to the display signal distribution unit 106. An example of such a display signal is an RGB signal input to a display monitor.

The display signal distribution means 106 branches the input display signal and transmits it to the terminal systems 110, 120 and 130 via the communication control means 104.

In the terminal system 110, the communication control means 11
When the display signal is received at step 1, the display signal is input to the display signal combining means 117. In the terminal system 110, a personal work program started simultaneously by the information processing means 115 according to the command information input from the command input means 114 according to the command information input via the command information exchange means 112 is executed. The display signal indicating the situation is also input to the display signal synthesizing unit 1117.
The display signal synthesizing unit 117 synthesizes the input two types of display signals on one screen and displays the synthesized signal on the display unit 116. As an example of such a display signal synthesizing means, a spur imposition of two screens can be considered.

In the terminal system 120, the communication control means 12
When the display signal is received at step 1, the display signal is input to the display signal synthesizing means 127. In the terminal system 120, simultaneously, the personal information program started by the information processing means 125 according to the command information input from the command input means 124 according to the command information input via the command information exchange means 122 is executed. The display signal indicating the situation is also input to the display signal synthesizing means 127. The display signal synthesizing unit 127 synthesizes the input two types of display signals on one screen and displays the synthesized signal on the display unit 126.

In the terminal system 130, the communication control means 13
When the display signal is received in step 1, the display signal is input to the display signal combining means 137. In the terminal system 130, the personal work program started simultaneously by the information processing means 135 according to the command information input from the command input means 134 according to the command information input via the command information exchange means 132, is executed. The display signal indicating the situation is also input to the display signal synthesizing means 137. The display signal synthesizing means 137 synthesizes the two types of input display signals into one screen and displays the synthesized signal on the display means 136.

In this way, the user of the terminal system 110 can use the document editing program activated in the center device 100, and the result can be simultaneously referred to in all the terminal systems connected by the communication line.

FIG. 10 similarly shows a case where the user of the terminal system 120 inputs command information to the document editing program started by the shared information processing means 105 of the center device 100.

[0054]

According to the first group work system of the present invention, a plurality of terminal systems are connected to a center device, and a keyboard, an information processing device, and a display device of the terminal system are connected between the terminal systems via the center device. And can be freely combined and connected. That is, an arbitrary keyboard is connected to the information processing apparatus on which the application program is activated, and the command information is transmitted to execute the program, and the state is displayed on the display monitors of all terminal systems via the center device. .
In this way, commands are transmitted at the level of the keyboard connection interface of each terminal system via the center device, and display information is transmitted between all terminal systems at the level of the connection interface of the display monitor. It is not necessary to add a command communication function by changing the application program, and it is possible to use the existing application program as it is, perform processing such as collaborative document editing within the group, and display the same result on all terminals It is. In addition, there is an effect that it can be flexibly applied to all application programs regardless of the type of application. When local work is performed on the terminal, the command input means and the information processing means are connected by the command information exchange means and the information processing means and the display means are connected by the display information exchange means in the terminal system, as shown in FIG. The function of the conventional terminal system can be constructed.

[0055]

In the group work individual work simultaneous execution system according to the second invention of the present application, an arbitrary keyboard is connected to the shared information processing device of the center device on which the cooperative work program is activated to send command information. The program is executed, and the state is displayed on the display monitors of all terminal systems via the center device. Each terminal system also executes personal work at the same time, and simultaneously refers to the results of the cooperative work and the personal work on the display monitor. By transmitting a command at the level of the keyboard connection interface of each terminal system via the center device in this way, and transmitting a display signal between all terminal systems at the level of the display monitor connection interface, as in the related art, It is not necessary to add a command communication function by changing the application program, and it is possible to use the existing application program as it is, perform processing such as collaborative document editing within the group, and display the same result on all terminals It is. In addition, there is an effect that it can be flexibly applied to all application programs regardless of the type of application. When a local operation is performed on the terminal, the command input means and the information processing means are connected by the command information exchange means in the terminal system, and the information processing means and the display means are connected by the display signal synthesizing means, as shown in FIG. The function of the conventional terminal system can be constructed.

[Brief description of the drawings]

FIG. 1 is a diagram showing a system configuration of an embodiment of a group work system according to the first invention of the present application.

FIG. 2 is a diagram showing an operation in the embodiment shown in FIG.

FIG. 3 is a diagram showing an operation in the embodiment shown in FIG. 1;

FIG. 4 is a diagram showing an operation in the embodiment shown in FIG.

FIG. 5 is a diagram showing a system configuration of an embodiment of a group work system according to the second invention of the present application.

FIG. 6 is a diagram showing an operation in the embodiment shown in FIG.

FIG. 7 is a diagram showing an operation in the embodiment shown in FIG. 5;

FIG. 8 is a diagram showing a system configuration of an embodiment of a group work system according to the third invention of the present application.

FIG. 9 is a diagram illustrating an operation in the embodiment illustrated in FIG. 8;

FIG. 10 is a diagram showing an operation in the embodiment shown in FIG.

FIG. 11 is a diagram showing a conventional terminal configuration.

FIG. 12 is a system configuration diagram showing an example of a conventional group work system.

FIG. 13 is a diagram showing a system operation in the conventional example shown in FIG.

[Explanation of symbols]

100 center device 110, 120, 130 terminal system 104, 111, 121, 131 communication control means 101, 112, 122, 131 command information exchange means 102 data exchange means 103, 113, 123, 133 display information exchange means 114, 124, 134 Command input means 115, 125, 135 Information processing means 116, 126, 136 Display means 105 Shared information processing means 106 Display signal distribution means 117, 127, 137 Display signal synthesis means

Claims (2)

(57) [Claims] A plurality of terminal systems each including a command input unit, an information processing unit having a function of executing an application program and storing data, a display unit, a command information exchange unit, a display information exchange unit, and a communication control unit; A center device having a command information exchange unit, a display information exchange unit, and a data exchange unit and a communication control unit, wherein the plurality of terminal systems are connected to the center device via the communication control unit, and the terminal The command information input from the command input means of the system is input to the information processing means of the terminal system by the command information exchanging means of the terminal system, and the command information exchanging means of the center device and the pre-selected terminal are exchanged. Via the command information exchange means of the system, The information processing means, which has been input to the information processing means of the terminal system, executes the application program in accordance with the command, and the display information output from the information processing means is the display information exchange means of the terminal system. Is input to the display means of the terminal system, and is simultaneously input to the display means via the display information exchange means of the center device and the display information exchange means of all other terminal systems, and the output data from the application program is: A group work system stored in all other information processing means via the data exchange means of the center device. 2. A plurality respectively with the information processing means having a command input unit and execution and data storage functions of the application program and the display means and the command information exchanging means and the display signal combining means and the communication control means has terminal system A center device having shared information processing means, a display signal distribution means, and a communication control means, wherein the plurality of terminal systems are connected to the center device via the communication control means, and a command input of the terminal system is provided. The command information input from the means is input to the information processing means of the terminal system or the shared information processing means of the center device by the command information exchange means of the terminal system, and the information processing means to which the command information is input Executes the personal work program in accordance with the command, and executes the information processing. The display signal output from the control means is input to the display signal synthesizing means of the terminal system, and the shared information processing means to which the command information is input executes the cooperative work program according to the command, and The output display signal is input to the display signal synthesizing unit of each terminal system by the display signal distribution unit, and the display signal synthesizing unit is the input information processing unit of the terminal system and the shared information processing unit of the center device. And displaying the result of the personal work program and the result of the cooperative work program on the display means of the terminal system at the same time.