JPH06243082A - Input controller - Google Patents

Abstract

PURPOSE:To improve processing by automatically giving an operation right for an input/output device without the necessity of troublesome procedure with the requirement of the operation right. CONSTITUTION:This input/output controller 203 is connected between a data processor 101 and plural input/output devices 107 and 111, and controls data transmission between them. The controller 203 is provided with an operation time zone appointment table 112 appointing a time zone when obtaining the operation right for the data processor is desired, and a signal switching device 113 which automatically switches the operation right by which the input/output devices can input to the processor according to the operation time zone appointment table.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an input / output control used for a group working system of a computer for performing individual tasks by simultaneously using the same data processing device and resources shared by a plurality of users via a computer network. Regarding the device.

[0002]

2. Description of the Related Art In recent years, it has become possible to connect a plurality of computers to a computer network and perform group work. Groupworking used here means that the same data processing device and resources shared by multiple users via a computer network are used at the same time, and the data processing statuses of all users are displayed on all display devices at the same time. Then, the operation of interactively operating the computer is referred to.

FIG. 9 is a block diagram of a conventional computer network for explaining a group working state in which two input / output devices are illustrated. In the figure, 104 and 108 are display devices of the input / output devices 107 and 111,
Reference numeral 03 is an input / output control device, 101 is a shared data processing device including shared resources, and two input / output devices 107, 1
It is possible to simultaneously access the same data processing device 101 from 11 (202 (signal flow, the same applies hereinafter)) and simultaneously work while displaying the same screen (201). Therefore, although very efficient, if two input / output devices request processing to the shared data processing device at the same time, the processing results may be confused or inconsistent unless they are sorted out. The state will be described below.

First, a case where there is one input / output device will be described with reference to FIG. In FIG. 10, 101 is a data processing device, 104 is a display device, 105 is a mouse, and 106.
Is a keyboard, all of which are used for normal interactive computing.

As an example of the operation, a basic flow of data and processing between the data processing device 101 and the input / output device 107 when a circle is drawn on the screen will be described below. First, as shown in FIG. Send an instruction to draw a circle to the data processing device. 2. The center point is designated on the screen of the display device 104 by a pointing device such as a mouse. 3. The data processing device 101 instructs the display device 104 to display the center point. 4. Display device 10 by inputting the radius r of the circle from the keyboard
Display in 4. 5. The data processing device 101 displays a circle graphic on the display device 1
04 is displayed.

Next, based on FIG. 11, a square is drawn on the display device 104 (FIGS. 1 and 12) of the input / output device 107 by the data processing device 101 shared by the two input / output devices 107 and 111, and input / output is performed. Display device 108 of device 111
The case of drawing a circle in (FIG. 1, FIG. 12) will be described.

FIG. 11 is a diagram for explaining the confusion or inconvenience of processing that may occur by the conventional technique.
It is a flowchart which shows the flow of the operation by the prior art example when two input / output devices are used. Hereinafter, the flow of the operation will be described according to the step numbers (the letters of the steps are omitted for simplification of the drawing).

First, in step 401, a square drawing command is issued from the input / output device 107 to the data processing device 101.
Send to. Next, the input / output device 107 designates one position of the vertex (step 402). Data processing device 101
Is the input / output device 1 for the two display devices 104 and 108.
The position designated by 07 is sent and a point is displayed there (step 403).

A circle drawing command is sent from the input / output device 111 to the data processing device 101 (step 404). The data processing apparatus 101 regards the rectangular drawing command as being discarded and interprets the following operation as for the drawing of a circle (step 405). The data processing device 1 determines the center position of a circle drawn from the input / output device 111 or the position of a point on the circumference.
01 (step 406). Data processing device 1
01 sends the instructed point to the two display devices 104 and 108 and displays it (step 407).

Further, the input / output device 107 instructs the data processing device 101 two positions of the vertices of the quadrangle without knowing that the previously drawn quadrangle drawing command has been discarded (steps 408 and 409). Since the data processing device 101 is instructed by the input / output devices 107 and 111 about a total of three points, a circle passing through the three points is sent to the display devices 104 and 108 to display the circle there (step 410).

Thus, the input / output device 107 was intended to draw a quadrangle, but as a result, a circle was drawn. In this way, the data processing device 1 receives inputs from the plurality of input / output devices 107 and 111.
If 01 is accepted unrestricted and unsorted, the operation may be inconsistent and an unintended result may occur. Therefore, when performing a meaningful series of operations in such data processing, the current operation is not accepted without receiving an instruction or instruction from another input / output device while executing a series of operations.
Only input from I / O devices should be accepted.

In the prior art, in order to solve this problem, an operation right function of giving an input operation right to the data processing device from the input / output device to one input / output device is provided, and the operation right is given. It is possible to input only from the output device to prevent confusion during input to the data processing device.

The operation right according to this conventional technique is such that the user of each input / output device interactively moves between the input / output devices to control the input to the data processing device. That is, when an input / output device that does not have the operation right is going to perform input to the data processing device, the user notifies the input / output device that has the operation right to that effect and causes the display device to display it. A user having the operation right is notified by such a method as described above, and the operation right is transferred from the input / output device having the operation right, and then the desired input is performed.

Next, the flow of processing among the input / output device, the input / output control device, and the data processing device according to the above-mentioned operation right system will be described with reference to FIG. FIG. 12 is a configuration diagram of a computer network showing a processing method between an input / output device and a data processing device according to a conventional example when two input / output devices 107 and 111 and an input / output control device 103 are used.

In FIG. 12, 104 and 108 are input / output devices 107 and 111, respectively, as in the above-mentioned conventional example.
Is a display device, and 101 is a data processing device. In addition, in the case of the operation right method, the input / output devices 107 and 11
1 and the data processing device 101 between the input / output control device 10
3 are connected. That is, the input / output control device 103 accepts the respective input signals from all the input / output devices 107 and 111 (502), but only the input signals from the input / output devices having the operation right (for example, 107 or 111). The data is output to the data processing device 101 (503). A response output signal (504) from the data processing device 101 to the input signal is output to the input / output control device 103, and all the input / output devices 107 and 111 are output from the input / output control device 103.
To the respective display devices 104 and 1 (501).
The same display is made at 08.

Next, with reference to FIG. 13, an example of the input control according to the above operation right method will be described. FIG. 13 is a flowchart showing a flow of operations according to the conventional example when the two input / output devices 107 and 111 and the input / output control device 103 are used. In FIG. 13, the flow of output signals is omitted to simplify the drawing.

The operation flow of FIG. 13 will be described below according to its step numbers. But to keep the diagram simple,
In FIG. 13, step letters are omitted. First, in step 601, the input / output device 107 requests an operation right from the input / output control device 103. Input / output control device 1
03 gives an operation right to the input / output device 107 (step 602). Therefore, the input / output of the other input / output device 111 becomes invalid until the input / output device 107 releases the operation right.

Next, a square drawing command is sent from the input / output device 107 to the data processing device 101 (step 6).
03). Here, although the input / output device 111 wants to draw an image, since it does not have the operation right, it requests the operation right to the input / output control device 103 (step 604). The input / output control device 103 notifies the input / output device 107 of the request for the operation right (step 605). However, the input / output device 107 that has received the request for the operation right does not immediately release the operation right, but performs four operations including the remaining operations (instructing each one position of each of the four vertices) (steps 606 and 607). , 608, 60
9) is terminated and the operation right is released to the rear input / output control device 103 (step 610). Therefore, the input / output control device 10
The operation right is given to the input / output device 111 from the step 3 (step 611).

Thereafter, similarly, the input / output device 111 sends a circle drawing command to the data processing device 101 (step 612) to indicate the center position of the circle to be drawn or the position of a point on the circumference ( In step 615, the radius r is input from the keyboard (110 in FIG. 12) (step 61).
6). During that time, since the input / output device 111 has the operation right, the input from the other input / output device 107 becomes invalid (step 617).

When the input / output device 107 wants to request the operation right again, it requests the operation right to the input / output control device 103 (step 613). The input / output device 111 receives a request for its operation right from the input / output control device 103 (step 6).
14) The operation right is transferred after the self operation is completed (step 618). Thereby, the input / output device 107
Receives an operation right from the input / output control device 103.

[0021]

However, according to the above operation right method, although the confusion of the processing result as described above can be avoided, the operation right is transferred each time an input is made from the input / output device. Since it has to be received, there is a problem that the operation becomes complicated and the operation efficiency is reduced.

Therefore, an object of the present invention is to make it possible to reserve an operation time in advance and acquire the operation right without requesting the operation right each time the input / output device needs an input. Is. Another object of the present invention is to enable the input / output device to automatically obtain the operation right when the input is desired, without requesting the operation right each time the input / output device needs the input. Further, another object of the present invention is such that when the operation right is requested from the input / output device, a complicated procedure such as transfer of the operation right is not required and the operation right can be automatically obtained after a lapse of a certain time. That is.

[0023]

In order to solve the above conventional problems, an input / output control device according to the present invention is arranged between a data processing device and a plurality of input / output devices, and controls input / output between them. An operation time zone reservation table and a signal switching device are provided for the input / output control device, and the operation right for each input / output device is automatically given and released through the signal switching device according to the operation time period reservation table. It is characterized by

In order to solve the above conventional problems, the input / output control device according to the present invention is arranged between a data processing device and a plurality of input / output devices, and controls the input / output between them. Allows one of the I / O devices to be automatically given the operation right for a predetermined period of time, while the input from the other I / O device is accumulated in the I / O controller, and when the operation right is given, the accumulated data is stored. Is input to the data processing device.

In order to solve the above-mentioned conventional problems, the input / output control device according to the present invention further includes a data processing device, a plurality of input / output devices, and an input / output control device for controlling the input / output between them. One of the input / output devices is given an operation right switching right, and when an operation right is requested from another input / output device, the operation right is automatically changed after a lapse of a predetermined time after the current operation right is given. It is characterized in that the input / output device is switched to.

[0026]

According to the present invention, the operation time zone reservation table and the signal switching device are provided in the input / output control device arranged between the data processing device and the input / output device, whereby the operation right of the input / output device is automatically controlled. By switching, it is possible to eliminate the complexity involved in the operation request.

Further, according to the present invention, one of the input / output devices is automatically given an operation right for a predetermined time period under the control of the input / output control device arranged between the data processing device and the input / output device. Inputs from other input / output devices are stored in the input / output control device, and are input to the data processing device when the operation right is given, whereby the complexity of the operation request can be eliminated. .

Further, according to the present invention, the operation right switching right is given to any one of the plurality of input / output devices, and the current operation right is given when the operation right is requested from another input / output device. By automatically switching the operation right after a lapse of a certain period of time, the complexity of requesting the operation right can be eliminated.

[0029]

Embodiments of the present invention will now be described in detail with reference to the accompanying drawings. FIG. 1 is a configuration diagram of a computer network showing a configuration of an input / output control device according to a first embodiment of the present invention. In FIG. 1, 101 is a data processing device, 203 is an input / output control device according to the first embodiment of the present invention, 104 is a display device, 105 is a mouse, 106 is a keyboard, 107 is an input / output device, 108 is a display device, 10
Reference numeral 9 is a mouse, 110 is a keyboard, 111 is an input / output device, and 112 and 113 are operation time slot reservation tables and signal switching devices according to the first embodiment of the present invention.

The operation time period reservation table 112 and the signal switching device 113 are included in the input / output control device 203 in this embodiment, and the operation time period reservation table 112 shows the time required for the operation of each input / output device in advance. Is reserved and registered, and the operation right is automatically switched and supplied by the signal switching device so as to sequentially give the operation right to each input / output device according to the reservation table.
The flow of data among the input / output devices 107 and 111, the input / output control device 203, and the data processing device 101 in this embodiment is the same as in the case of the conventional example described above.

Next, based on FIG. 2, the input / output control device 203
An example of operation when the operation right is switched according to the operation time period reservation table 112 will be described. FIG. 2 is a flowchart showing an operation flow when the two input / output devices 107 and 111 and the input / output control device 203 are used according to this embodiment. In FIG. 2, the output signal flow is omitted to simplify the description.

According to the operation time slot reservation table 112 of FIG.
First, the input / output device 107 acquires the operation right by reservation (step 702). In step 703, the input / output device 107 sends a square drawing command to the input / output control device 203. The input / output control device 203 confirms the operation time slot reservation table 112 and then sends a rectangular drawing command to the data processing device 101. Subsequently, in step 704, the input / output device 107 sends the coordinates of the vertex 1, which is one of the rectangular drawing elements, to the input / output control device 203.
After confirming the operation time slot reservation table 112, the input / output control device 203 sends the coordinates of the vertex 1 which is a quadrangular drawing element to the data processing device 101.

Input / output device 11 according to the time slot reservation table 112
When a transition is made to the reserved time zone in which the operation right is given to 1 (step 705), the input / output control device 203 causes the input / output device 10 to operate.
7 is notified that the operation right of the input / output device 107 has been abandoned (step 706). At this point, all the operation commands that the input / output device 107 has executed to the data processing device 101 that have not been completed are invalidated, and the subsequent operation right is lost. At the same time, the input / output control device 203 notifies the input / output device 111 that the operation right has been given to the input / output device 111 (step 707). For the first time, the input / output device 111 acquires the operation right of the data processing device 101. The switching of the operation right is performed by the signal switching device 113.

Next, a circle drawing command is sent from the input / output device 111 to the input / output control device 203 (step 7).
08). The input / output control device 203 uses the operation time slot reservation table 11
After confirming 2, a circle drawing command is sent to the data processing device 101. Here, the data processing device 101 abandons all the rectangular drawing commands that have been accepted so far and accepts a new circular drawing command. Next, the center coordinates (center position) of the circle, which is one of the drawing elements of the circle, is sent from the input / output device 111 to the input / output control device 203 (step 709).
After confirming the operation time slot reservation table 112, the input / output control device 203 sends the center coordinates of the circle, which is the drawing element of the circle, to the data processing device 101.

Next, the radius of the circle which is the drawing element of the circle is sent from the input / output device 111 to the input / output control device 203 (step 710). After confirming the operation time slot reservation table 112, the input / output control device 203 sends the radius of the circle, which is the drawing element of the circle, to the data processing device 101. When the data processing device 101 receives all the drawing elements of the circle, the data processing device 101 notifies the input / output device 111 that the data processing device 101 has received the operation command (step 711).

According to the operation time zone reservation table 112, when a transition is made to a reservation time zone in which the operation right is given to the input / output device 107 (step 712), the input / output control device 203 causes the input / output device 111 to operate.
Is notified that the operation right of the input / output device 111 has been abandoned (step 713). I / O device 1 at this point
Although all the operation commands to the data processing device 101 which have been completed by 11 are invalid, all the operation commands to the data processing device 101 have been completed in this example, so that the subsequent operation right Only loses. At the same time, the input / output control device 203 notifies the input / output device 107 that the input / output device 107 has acquired the operation right (step 714). Here, the input / output device 107 again acquires the operation right for the data processing device 101. The switching of the operation right is performed by the signal switching device 113.

The input / output device 107 causes the data processing device 101 to process the abandoned rectangular drawing command again.
A square drawing command is sent from the input / output device 107 to the input / output control device 203 (step 715). The input / output control device 203 confirms the operation time slot reservation table 112 and then sends a rectangular drawing command to the data processing device 101. Next, the input / output device 107 sends the coordinates of the vertex 1 which is one of the rectangular drawing elements to the input / output control device 203 (step 716). After confirming the operation time slot reservation table 112, the input / output control device 203 sends the coordinates of the vertex 1 which is one of the rectangular drawing elements to the data processing device 101.

Next, the input / output device 107 sends the coordinates of the vertex 2 which is another one of the rectangular drawing elements to the input / output control device 203 (step 717). After confirming the operation time slot reservation table 112, the input / output control device 203 sends the coordinates of the vertex 2, which is another one of the rectangular drawing elements, to the data processing device 101. Next, the input / output device 107 sends the coordinates of the vertex 3, which is another one of the rectangular drawing elements, to the input / output control device 203 (step 718).
After confirming the operation time period reservation table 112, the input / output control device 203 sends the coordinates of the vertex 3, which is another one of the rectangular drawing elements, to the data processing device 101.

Next, the input / output device 107 sends the coordinates of the vertex 4, which is the last one of the rectangular drawing elements, to the input / output control device 203 (step 719). After confirming the operation time slot reservation table 112, the input / output control device 203 sends the coordinates of the vertex 4, which is the last one of the rectangular drawing elements, to the data processing device 101. When the data processing device 101 receives all the square drawing elements, the data processing device 101 sends the data processing device 1 to the input / output device 107.
01 notifies that the acceptance of the operation command is completed (step 720). Through the above procedure, the input / output device 107 and the input / output device 111 complete the desired processing in their reserved time zones.

Next, a second embodiment of the present invention will be described with reference to FIGS. FIG. 3 is a configuration diagram of a computer network showing the configuration of the input / output control device according to the present embodiment. In FIG. 3, 101 is a data processing device, 107 is an input / output device having a display device 104, 11
Reference numeral 1 is an input / output device having a display device 108, and 303 is an input / output control device according to the present embodiment.
01 and the input / output devices 107 and 111 are the same as those in the first embodiment. Input / output control device 303 according to the present embodiment
Is a function that automatically switches the operation right to another input / output apparatus after a predetermined fixed time (for example, the average time required to execute a certain series of operations) has elapsed since the operation right was given to one of the input / output apparatuses. Have. In this case, the other input / output device that gives the operation right may follow a fixed order or may perform random extraction.

Next, based on FIG. 4, two input / output devices 107 and 1 are used by using the input / output control device 303 according to this embodiment.
An operation example of automatic switching of the operation right for 11 will be described. FIG. 4 is a flowchart illustrating the flow of operations according to this embodiment. In addition, the input / output device 1 in this embodiment
The data flow among 07, 111, the input / output control device 303, and the data processing device 101 is the same as in the above-described conventional example and the first embodiment of the present invention.

In the operation example shown in FIG. 4, in order to simplify the drawing, the display of the output signal and the character of the step is omitted as in the case of the first embodiment. First, in step 901, the operation right is given to the input / output device 107 by the input / output control device 303, and the input / output device 107 holds the operation right for a predetermined fixed time from that time, and from the other input / output device 111 during that time. All inputs are stored in the I / O controller. The input / output control device 303 notifies the input / output device 107 that the operation right has been given (step 902).

The input / output device 107 receives the notification of the granting of the operation right, and receives the data processing device 10 via the input / output control device 303.
Send a square drawing command to 1 (step 90
3), and then a square 4 through the input / output control device 303.
Four signals indicating the positions of the two vertices are sent to the data processing device 101 (steps 904, 905, 90).
6,907). In this embodiment, the input / output control device 303
Only allows the signal from the input / output device 107 to pass through, and there is no need to inspect the time zone or the like as in the case of the first embodiment.

However, as described above, the input from the other input / output device 111 does not pass through the input / output control device 303 and is stored therein. That is, the input / output device 11
When 1 wants to draw a circle, it sends a circle drawing command to the input / output control device 303 (step 908), and then sends a signal instructing the center position of the circle (step 909) to set the radius r of the circle to the keyboard 110. Although input from (FIG. 3) (step 910), all of these signals are accumulated in the input / output control device 303.

When a predetermined period of time elapses after the operation right is given to the input / output device 107, the input / output control device 303 releases the operation right from the input / output device 107 (step 91).
1), the next input / output device 111 is given (step 91).
2). The input / output control device 303 sends the accumulated input from the input / output device 111 to the data processing device 101 (step 913). The input / output device 111 to which the operation right is given can input to the data processing device 101 for a predetermined fixed time, and during that time, the input from the input / output device 107 is accumulated in the input / output control device 303.

FIG. 5 shows an input / output control device 30 according to this embodiment.
5 is a state transition diagram showing transition of operation states in FIG. First, in the state 210, when the operation right is given to the input / output device 107, for example, 1) the time monitoring for a predetermined fixed time period is started, and 2) the input operation right is given to the input / output device 107, 3) Accept the input from the input / output device 107, and 4) Store the input from the other input / output device 111.

Next, 5) after a lapse of a certain time, the input / output control device 303 transits to the state 212, 6) releases the operation right of the input / output device 107, and 8) stores the stored data in the processing device 1.
After inputting 01, the state returns to the state 210 again, the operation right is given to the other input / output device 111, and the elapsed time is monitored.

Next, a third embodiment of the present invention will be described with reference to FIGS. FIG. 6 is a configuration diagram of a computer network for explaining a group working operation according to the present embodiment. In FIG. 6, 101 is a data processing device, 107 is an input / output device having a display device 104, 111 is an input / output device having a display device 108,
Reference numeral 711 is an input / output device (described later) having a display device 705 which is arbitrarily selected from a plurality of input / output devices according to the present embodiment, and 403 is an input / output control device according to the present embodiment. Input / output devices 107 and 111
Is similar to that of the first and second embodiments.

The arbitrarily selected input / output device 711 has the right to switch the operating right to all the input / output devices 104 and 111, and has the information display 708 for displaying the location of the operating right on the display device 705. The input / output control device 403 requests the input / output device 711 having the operation right switching right to switch the operation right based on the operation right request from the input / output devices 107 and 111, and the input / output device 711 switches the operation right. It functions to give the operation right for a predetermined time to the input / output devices 107 and 111 that have acquired the signal and requested the operation right. But,
The input / output device 711, which has the right to switch the operation right, monitors the time from the previous switching and does not switch the operation right until a predetermined fixed time has elapsed. The timing of giving the operation right and the monitoring function may be provided in the input / output device 711, the input / output control device 403, or the data processing device 101.

FIG. 6 shows the input / output device 10 in this embodiment.
7 shows the flow of data among 7, 111, 711, the input / output control device 403, and the data processing device 101. A plurality of input / output devices 107, 111 for the input / output control device 403,
Although an input signal is transmitted from 711, 702, only the input signal from the input / output device to which the operation right is given is sent to the data processing device 70.
3. The output signal 704 from the data processing device 101 is passed through the input / output control device 403 to all the input / output devices 10.
701 given for 7,111,711. Further, the input / output control device 403 sends an operation right acquisition request 710 to the arbitrarily selected input / output device 711, and the input / output device 711 sends an operation right switching signal 709 to the input / output control device 403.

Next, an operation example according to this embodiment will be described with reference to FIG. FIG. 7 is a flowchart showing the flow of operations according to this embodiment. To simplify the description, the flow of output signals and letters of steps are omitted. First, step 8
01, the input / output device 107 is the input / output control device 40.
Requests the operation right from 3.

Next, the input / output control device 403 notifies the input / output device 711 of the request for the operation right (step 802).
When the input / output device 711 instructs the input / output controller 403 to switch the operating right for the input / output device 107 in response to the request for the operating right, the input / output controller 403 gives the operating right to the input / output device 107 ( In step 803), the input / output device 107 is notified that the operation right has been acquired (step 804). Therefore, the input / output device 107 can input data. When the other input / output device 111 newly requests the operation right from the input / output control device 403 (step 8)
10) In this case as well, the input / output device 711 is similarly requested to switch the operation right (step 811).

However, as described above, the input / output device 711 is
Does not immediately switch the operation right, but waits until a predetermined time has elapsed since the operation right was given to the input / output device 107 (step 812). Meanwhile, another input / output device 1
11 cannot be input to the data processing device 101. Therefore, in this case as well, the input / output device 107 does not have to interrupt the work currently in progress due to a request for operation right from another input / output device 111 as in the prior art.
Can be completed. Also in the present embodiment, the second
Similarly to the embodiment described above, the input from the input / output device 111 can be temporarily stored in the input / output control device.

When a predetermined period of time elapses after the operation right is given to the input / output device 107, the input / output device 711 notifies the input / output control device 403 that the operation right should be switched to the input / output device 111 (step 813). ). The input / output control device 403 notifies the input / output device 107 that the operation right has been released (step 814), and notifies the input / output device 111 that the operation right has been given (step 8).
15). From this time, the other input / output device 107 can no longer input. The input / output device 11 that has acquired the operation right
1 is a data processing device 1 via the input / output control device 403.
Input a circle drawing command to 01 (step 816),
Subsequently, the center position of the circle is designated (step 817) and the radius r of the circle is input from the keyboard 110 (FIG. 6) (step 818) to draw the circle.

FIG. 8 shows an input / output control device 40 according to this embodiment.
5 is a state transition diagram showing transition of operation states in FIG. First, in the state 220, 1) the operation right is given to the input / output device 107, 2) only the input from the input / output device 107 is accepted, and 3) the input from the other input / output device 111 is discarded. 4) In the meantime, when a request for switching the operating right is received from another input / output device 111, 5) A request for switching the operating right is sent to the input / output device 711 having the operating right switching right.

6) When the operation right switching instruction is received from the input / output device 711, the input / output control device 403 transits its state to the state 222, and 7) releases the operation right of the input / output device 107 and changes to the state 220. Then, the operation right is given to the input / output device 111. Further, if there is no request for the operation right from another input / output device within a certain time after the operation right is given, the operation right may be given to the current input / output device. It may be returned to.

[0057]

As described above, the present invention provides the input / output control device with the operation time slot reservation table and the signal switching device,
By automatically switching the operation right of the I / O device according to the operation time slot reservation table, the operation right is given to each I / O device in order for a certain time, By storing the input in the input / output control device and sending it to the data processing device when the operating right is acquired, the input right switching right is given to one of the input / output devices and the other input is given. When the operation right is requested from the output device, the operation right is automatically switched after a certain time has passed after the current operation right is given, so that the operation right is not cut off during the operation. There was no need to perform a procedure to transfer the operation right each time, and the complexity of the operation request could be eliminated and the operation efficiency could be improved.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a computer network showing a configuration of an input / output control device according to a first embodiment of the present invention.

FIG. 2 is a flowchart showing a flow of operations when two input / output devices and an input / output control device are used according to the embodiment of FIG.

FIG. 3 is a configuration diagram of a computer network showing a configuration of an input / output control device according to a second embodiment of the present invention.

FIG. 4 is a flowchart showing a flow of operations according to the embodiment of FIG.

5 is a state transition diagram showing transitions of operation states in the input / output control device according to the embodiment of FIG.

FIG. 6 is a configuration diagram of a computer network for explaining a groupworking operation according to a third embodiment of the present invention.

FIG. 7 is a flowchart showing a flow of operations according to the embodiment of FIG.

8 is a state transition diagram showing a transition of an operation state in the input / output control device according to the embodiment of FIG.

FIG. 9 is a configuration diagram of a computer network for explaining a group working operation according to a conventional example.

FIG. 10 is a configuration diagram of a computer network showing processing between an input / output device and a data processing device according to a conventional example when one input / output device is used.

FIG. 11 is a flowchart showing a flow of operations according to a conventional example when two input / output devices are used.

FIG. 12 is a configuration diagram of a computer network for explaining a group working operation according to a conventional example when two input / output devices and an input / output control device are used.

FIG. 13 is a flowchart showing a flow of operations according to a conventional example when two input / output devices and an input / output control device are used.

[Explanation of symbols]

 101 data processing device 103 input / output control device 104 display device 105 mouse 106 keyboard 107 input / output device 108 display device 109 mouse 110 keyboard 111 input / output device 203 input / output control device 303 input / output control device 403 input / output control device 705 display device 706 Keyboard 707 Mouse 708 Operation right information display 711 Input / output device having operation right switching right

Claims (3)

[Claims] 1. An input / output control device connected between a data processing device and a plurality of input / output devices to control data transmission between the input / output devices, wherein each of the input / output devices is the data processing device. An operation time period reservation table for reserving a time period in which an operation right for the device is desired to be reserved, and an operation right that the input / output device can input to the data processing device automatically based on the operation time period reservation table. An input / output control device comprising a signal switching device for switching. 2. An input / output control device, which is connected between a data processing device and a plurality of input / output devices and controls data transmission between the input / output devices, wherein the input / output control device is predetermined for each of the input / output devices. The operation right is automatically given during that period, inputs from other input / output devices are accumulated during that time, and the accumulated input is automatically inputted to the data processing device when the operation right is given. Input / output control device characterized by. 3. An input / output control device which is connected between a data processing device and a plurality of input / output devices and controls data transmission between the input / output devices, wherein any one of the input / output devices is an input device. When the user has a right to switch the operation right to the output device and a request for the operation right is made from another input / output device via the input / output control device, the operation is automatically performed after a lapse of a predetermined time from the current operation right being given. An input / output control device characterized in that the operation right is switched to another input / output device.