JP3168422B2 - Communication processing device and data processing method - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a communication processing device and a data processing method in the processing device.

[Prior Art] Conventionally, in a telewriting device, one-to-one mutual communication has been mainly considered, and it is assumed that drawing information is mutually communicated while always displaying the same screen on both devices. .

Note that the exchange of drawing information is performed based on (X, Y) coordinate information on the screen.

[Problem to be Solved by the Invention] In the above-described apparatus, for example, when drawing information to be exchanged reaches a plurality of pages, an attempt is made to view a previous page from a state in which a common screen is displayed. The screen is different from the common screen that is displayed.

When the common screen is further switched in this state, it is necessary to search for the common screen while listening to the common screen from the other party by voice.

Also, even when the display of the partner device whose display is changed from the common screen to another page needs to be forcibly or returned to the common screen, it cannot be said that the method is not necessarily convenient and it is not necessarily easy to use. .

The present invention provides a communication processing device that solves the above problems,
It is an object to provide a data processing method.

[Means for Solving the Problems] The present invention is a communication processing device for controlling a display device to perform a display common to a display state displayed on a display unit of a communication partner terminal. In response to a change in the display state, receiving means for receiving a display change instruction of the display device performing the common display from the communication partner terminal, and in response to reception by the receiving means, the communication partner terminal In the display state of the display,
Control means for reflecting the display state of the display device, and when the display of the display device is switched from the common display to another display, is issued based on an instruction of a communication partner, and A communication processing apparatus having a forced display change unit for changing the display device to the common display displayed on the display unit of the communication partner terminal when receiving a forced display change command to change the display.

Embodiment FIG. 1 is a block diagram showing a telewriting device according to an embodiment of the present invention.

This telewriting device includes a line control unit 1, a drawing codec unit 2, an audio input / output control unit 3, an audio input / output unit 4,
It has a storage unit 5, an overall control unit 6, an input / output control unit 7, a drawing input unit 8, a control information input unit 9, and a display unit 10, and performs voice and drawing with one or a plurality of telewriting devices. It performs information communication.

The line controller 1 controls an interface between the telewriting device and the line 11.

The drawing codec 2 is a circuit that encodes and decodes drawing information.

The voice input / output control unit 3 controls input / output of voice information.

The voice input / output unit 4 inputs and outputs voice information, and corresponds to a handset, a microphone, a speaker, and the like.

The storage unit 5 is a circuit that stores exchange drawing information, exchange control information, internal control information, and the like.

The overall control unit 6 is a circuit that controls the entire telewriting device such as analysis, processing, and flow control of exchange information.

The input / output control unit 7 controls input and output of drawing information, control information, and the like.

The drawing input unit 8 is for inputting drawing information, and the control information input unit 9 is for inputting control information.

The display unit 10 displays drawing information, control information, and the like, and forms a common screen based on the drawing information communicated with each other.

The line 11 is an ISDN line, a telephone line, or a dedicated line.

In the conference system using this telewriting device, when changing the common screen to the next common screen, the telewriting device having the control right notifies another telewriting device of an identifier indicating the next common screen. It has become.

When a certain telewriting device switches its own display screen from the common screen to another screen, the telewriting device saves the common screen in the storage unit 5 by attaching the identifier. And
When rewriting information or the like to the common screen during the display of the separate screen is sent, the information is reflected on the common screen being saved based on the identifier. Therefore, even during such a separate screen display, the partner device only needs to exchange additional information or the like based on (X, Y) coordinate information on the common screen in the same manner as usual, and to transmit special transmission data. There is no burden to prepare. Also, when returning from the separate screen display to the common screen, it can be easily performed using the identifier described above, and since the exchange information during that time is reflected on the evacuated common screen, confusion does not occur. Absent.

FIG. 2 is a flowchart for explaining an operation example when a conference is held in such a conference system.

In this example, as shown in FIG. 3, it is assumed that a telewriting device is connected at three points to hold a conference.

Also, here, the exchange drawing information is spread over a plurality of pages, resulting in screens 91, 92 and 93 as shown in FIG.
Then, the screen 93 is currently selected as the common screen, and an identifier indicating this screen is transmitted to each point (S1),
A screen 93 is displayed on the display unit 10 of each telewriting device (S2).

Each time the telewriting device receives the added / modified information (S4), the information is reflected on the common screen 93 and displayed in real time (S5).

Here, when the operator at a certain point personally wants to refer to the previous screen, and performs an operation of switching his or her own screen (S3), the telewriting device is instructed by the operator's operation. It is determined whether the screen is 91 or 92 (S6), and the screen 91 or 92 is displayed (S7, S1).
1).

On the other hand, the common screen 93 is saved in a predetermined area of the storage unit 5. At the time when the common screen 93 is set, a predetermined identifier is set, thereby managing the exchange information on the common screen 93.

After the common screen 93 is switched to another screen as described above, when additional / correction information is received from another point (S
8, S12), which is not displayed on the screen 91 or 92 being referred to, but is reflected on the common screen 93 based on the identifier and stored in the storage unit 5
(S9, S13). In the example of FIG.
(XYZ) is displayed in real time on the common screen 93 being displayed at other points, but is written on the common screen 93 saved in the storage unit 5 at the point where the screen 91 is being referred to.

As a result, the common screen 93 that is not actually displayed is rewritten / corrected in real time in conformity with the progress of the conference. Further, the added / corrected information is not displayed on the screen 91 or 92 being referred to, and control is performed so as not to disturb these screens.

Thereafter, when a screen switching operation is further performed in the same device (S10, S14), if the operation instructs the return of the common screen 93 (S15), according to the content stored in the storage unit 5, Display the common screen 93 on the display unit 10 (S1
6). The common screen 93 displayed here appropriately reflects the addition / correction during the period of referring to another screen as described above.

In this way, when returning to the common screen 93, gaps referring to other screens can be eliminated, and the conference can be smoothly continued.

Further, in this embodiment, when it is necessary to promptly refer to the common screen at all points, for example, when a conference is resumed after a break, by sending an identifier from a point having control authority, The display of all points can be forcibly switched to a common screen.

 FIG. 5 is a flowchart showing this operation.

Here, first, it is assumed that different screens are referred to at all points (S20). Here, when a compulsory switching command to the common screen by the identifier is transmitted from the point having the control right (S21), the display of the other points is forcibly switched to the common screen, and the common screen is displayed at all the points. (S2
2).

As a result, the proceedings can be smoothly performed.

It should be noted that the identifier is added to the exchange information as described above only when the above-mentioned common screen is changed and when the display of all terminals is forcibly unified. Avoid adding redundancy.

In the above embodiment, only the case where the drawing information is communicated with each other has been described. However, the same method can be applied to a multimedia communication terminal in which other media such as FAX information, still image information, and code information are mixed. It is possible to respond with.

Further, the forced screen switching command can be issued not only to all terminals but also to individual terminals.

[Effects of the Invention] According to the present invention, it is easy to shift to communication on a common topic.
If another display state different from the display state displayed by the display unit of the communication partner terminal is displayed, when the user of the communication partner terminal requests to refer to the common screen, The display device of the terminal is displayed on the common screen,
You can return immediately and refer to the above common screen,
Therefore, there is an effect that communication by a communication device capable of referring to a screen other than the shared screen during communication is promoted.

Further, even when the common screen is further changed while the display is switched to a screen other than the common screen, the common screen to be restored can be easily specified, and the smooth restoration can be performed.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a telewriting device according to an embodiment of the present invention. FIG. 2 is a flowchart for explaining an operation example when a conference is performed by a conference system constituted by the telewriting device of the embodiment. FIG. 3 is a schematic diagram showing an example of a conference system constituted by the telewriting device of the embodiment. FIG. 4 is a schematic diagram showing a state in which the exchange drawing information in the embodiment forms a plurality of display screens. FIG. 5 is a flowchart showing the forcible switching operation of the common screen in the embodiment. DESCRIPTION OF SYMBOLS 1 ... Line control part, 2 ... Drawing codec part, 3 ... Voice input / output control part, 4 ... Voice input / output part, 5 ... Storage part, 6 ... Overall control part, 7 ... Input / output control , 8 ... Drawing input unit, 9 ... Control information input unit, 10 ... Display unit, 11 ... Connection line, 91-93 ... Display screen.

──────────────────────────────────────────────────続 き Continued on the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) H04N 1/38-1/393 H04N 7/15 G09G 5/00 530 H04L 13/00

Claims (2)

(57) [Claims] 1. A communication processing device for controlling a display device so as to perform a display common to a display state displayed on a display unit of a communication partner terminal, the communication processing device responding to a change in a display state of the display unit of the communication partner terminal. Receiving means for receiving, from the communication partner terminal, a display change instruction of the display device performing the common display; and changing the display state of the display unit of the communication partner terminal in response to the reception by the receiving means. Control means for reflecting the display state of the display device; and when the display of the display device is switched from the common display to another display, the display is issued based on an instruction of a communication partner, and When the forced display change command for changing the display is received, the forced display change command for changing the display device is displayed on the common display displayed on the display unit of the communication partner terminal. Communication processing apparatus characterized by having: means and. 2. An instruction for changing the display of the display device according to a change in the display state of the display unit of the communication partner terminal so as to perform a display common to the display state displayed on the display unit of the communication partner terminal. A data processing method in a processing device for receiving from the communication partner terminal and, in response to the reception, reflecting a display state of a display unit of the communication partner terminal on a display state of the display device, wherein the display of the display device Is being switched from the common display to another display, and is issued based on the instruction of the communication partner and receives a forced display change command to change the display to the common display. A data processing method, wherein the display device is changed to the common display displayed on a display unit.