JPH03133244A - Telewriting device - Google Patents

Abstract

PURPOSE:To discriminate by whom the information has been added by making identification display of additional write information as required in mutual communication of drawn picture information between multi-points. CONSTITUTION:When additional description is given from any of terminal equipments A,B,C, the additional description information is fetched and the additional description information and terminal equipment identification informa tion are stored in a storage section 5. Then a color display in response to the terminal identifier is implemented and the additional description information and the identification information stored in the storage section 5 are sent to the terminal equipments B, C. The terminal equipments B, C receiving the information display the added information in color similarly to the case with the terminal equipment A. Suppose that the picture drawn information of an area 93 is written/corrected by the terminal equipment A, the drawn picture information in an area 94 is by the terminal equipment B and one-dashed chain lines 95 are written/corrected by the terminal equipment C, the information sets are displayed in repeating different colors for identification.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention is capable of mutually communicating drawing information such as character and graphic information at the same time as mutual communication by voice via an SDN network, a telephone network, a dedicated line, etc. The present invention relates to a possible telewriting device, and particularly to a telewriting device that can be operated as a conference system by interconnecting a plurality of telewriting devices.

[Prior Art] Conventionally, this type of telewriting device was mainly designed for one-to-one mutual communication, so the display section of the common screen displayed both the other party's input and the other's input. / Modification information is displayed at the same level without any identification.

Furthermore, the display section has a small amount of memory, allowing storage of multiple screens.

[Question 8 to be solved by the invention] However, in the above-mentioned conventional telewriting device,
When communicating with multiple parties at the same time, even if you later want to know who added something, there is no way to identify it, which can be a hindrance to the progress of the meeting.

Furthermore, it is not possible to partially or completely erase only information added by a certain person, or conversely, to partially or completely restore information that has been erased by a certain person.

In addition, on the contrary, a system is being considered in which a write-right control device adds a restriction that prevents anyone other than the user from adding or modifying the information, but if such a restriction is added, This makes it difficult for users to use.

Therefore, the present invention provides additional information on the common screen.
It is an object of the present invention to provide a telewriting device in which it is possible to easily identify whose added information is added, and thereby to freely erase each added information.

[Means for Solving the Problem] The present invention connects to one or more partner devices via a predetermined line, transmits and receives voice information, and transmits and receives drawing information such as text and graphic information to display on a display unit. In a telewriting device that displays a common screen and allows additions/modifications to be made to this common screen, information added to the common screen is identified by who added the information, and identification information is created. a storage means for storing the additional information together with the identification information; a display control means for displaying the additional information on a screen in a distinguishable manner for each of the identification information as needed; The present invention is characterized by comprising a screen erasing means for partially or entirely erasing the additional information.

[Function] In the present invention, when mutually communicating drawing information between multiple points, added information on a common screen can be identified and displayed as necessary, and it is possible to determine who added the information. It is usable.

[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 section 1, a drawing codec section 2, an audio input/output control section 3, an audio input/output section 4, a storage section 5. Overall control section 6, input/output control section 7, drawing input section 8
, a control information input section 9, and a display section 1O, and performs mutual communication of audio and drawing information with one or more telewriting devices.

The line control unit 1 controls the interface between the present telewriting device and the line 11.

Further, the drawing codec unit 2 is a circuit that encodes and decodes drawing information.

The audio input/output control unit 3 controls the input/output of audio information, and includes an audio codec that performs A/D conversion when connected to an ISDN network.

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

The storage unit 5 stores additions,
This is a circuit that stores modified or deleted drawing information with an identifier.

The overall control unit 6 is a circuit that controls the entire telewriting device.

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

The drawing input section 8 is for inputting drawing information, and the control information input section 9 is for inputting control information.
' The display unit 10 displays drawing information, control information, etc., and constitutes a common screen based on mutually communicated drawing information.

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

FIG. 2 is a schematic diagram showing a conference system in which such telewriting devices are connected at three points.

Each telewriting device (terminal A, B, C) 20.21
．． 22 is connected to the network or conference controller 3 by line 11.
It is connected at multiple points via 0. The telewriting device 20 has the configuration shown in FIG. 1, and the screen is transmitted to the telewriting devices 21 and 22 under the control of the overall control section 6.

FIG. 3 is a flowchart illustrating an example of operation when holding a conference using such a conference system. This flowchart is executed by the overall control section 6.

First, the display section 10 of each telewriting terminal A, B, C
, a screen as shown in FIG. 4 is displayed as a common screen 91. Note that the common screen 91 has been transmitted from terminal A to terminals B and C (Sl), and it is now necessary to reconsider the information added/corrected in area 92 of common screen 91.

When an addition is made from one of terminals A, B, or C, the process proceeds from S2 to 33, where the additional terminal is identified.In S4, the additional information is captured, and in S5, the additional information and terminal identification information are stored in the storage unit 5. remember.

Then, in S6, a color-coded display is performed according to the terminal identifier.
In S7, the additional information and identification information stored in the storage unit 5 are transmitted to the terminals B and C.

Terminals B and C that receive this display the added information in different colors, similar to terminal A.

Here, among the areas 92 in FIG. 2, the drawing information of the area 93 is sent to the terminal A, and the drawing information of the area 94 is sent to the terminal B.
5 is added/corrected by terminal C, and these pieces of information are distinguished and displayed in different colors. This is identified by the identifier of each drawing information stored in the storage unit 5 and color-coded.

Here, the drawing information of the area 94 added by terminal B, that is, "
+α” is unnecessary, proceed from S8 to 390 For example, if terminal A specifies that only the added/corrected portion of terminal B in area 92 is to be deleted, “+α” is unnecessary in S9. Performs erase processing in the vicinity.

Then, in SIO, from terminal A to terminals B and C,
The control information "delete only the added/edited part of terminal B in area 92" and the erase processing information are respectively transmitted. As a result, in the area 92 of the common screen on each telewriting terminal A, B, and C, as shown in FIG. Remaining.

Next, as a result of further consideration, if it is determined that "+α" is still necessary, a recovery instruction is given and the process proceeds from Sll to S12. In S12, terminal A stores the information deleted by terminal A in area 92, and Information added/corrected by terminal B and deleted information is displayed in a flashing manner. As a result, a flashing display of "+α" is performed in the area 92. Also.

Similar control information is also transmitted to each telewriting terminal B and C (S13).

Next, when the restoration of this flashing information to the common screen is specified, the process proceeds from 514 to 515, and the display is restored to the one shown in FIG. INI information indicating recovery designation is sent to writing terminals B and C, and terminals B and C that receive this restore the same screen as terminal A.

As described above, in this embodiment, it is easy to designate a specific area and perform partial correction/recovery, and it is of course possible to perform this on the entire screen.

In addition, all inputs from all terminals may be displayed in different colors, so correction/recovery when inputs from multiple terminals overlap can be easily performed.

In the above embodiment, an example of control between three points has been described, but of course the same can be applied to mutual communication between even more points.

Further, it is not necessary to display one color, but other display methods may be used as long as they can be distinguished.

Furthermore, it is possible to select whether the deleted information is displayed using the identifier of the terminal that deleted the information, or conversely, using the identifier of the terminal that added the deleted information. In particular, in cases where additions, modifications, and deletions to the exact same location are repeated, more advanced modification/recovery work becomes possible by combining with time-series information.

Further, in the above embodiment, only drawing information has been described, but by combining it with still image information such as FAX information and code information of word processors, personal computers, etc., even more advanced usage methods become possible.

[Effects of the Invention] As explained above, according to the telewriting device according to the present invention, when performing mutual communication of drawing information between multiple points, by identifying and displaying additional information as necessary,
It is possible to determine who added information, and furthermore, when modifying/deleting added information and during discussions that involve repeating this process,
It is possible to easily modify or delete only specific information, and it has the effect of providing a very advanced usage method as a conference system with a simple operation method.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing a telewriting device according to an embodiment of the present invention. FIG. 2 is a schematic diagram showing an example of a conference system configured using the telewriting device of the same embodiment. FIG. 3 is a flowchart showing an example of operation in the same embodiment. FIG. 4 is a schematic diagram showing an example of a display screen in the same embodiment. FIG. 5 is a schematic diagram showing a state in which a part of the display screen shown in FIG. 4 has been deleted. DESCRIPTION OF SYMBOLS 1... Line control part, 2... Drawing codec part, 3... Audio input/output control part, 4... Audio input/output part, 5... Storage part, 6... Overall control part, 7... Input/output control unit, 8... Drawing input unit, 9... Control information input unit, 10... Display unit, 11... Connection line, 91... Display screen.

Claims (2)

[Claims] (1) Connected to one or more partner devices via a predetermined line, transmits and receives voice information, and also transmits and receives drawing information such as text and graphic information to display a common screen on the display unit. In a telewriting device configured to make additions/corrections to a screen, an identification means for identifying who added the information added to the common screen and creating identification information; storage means for storing the information together with the identification information; display control means for displaying additional information on the screen in an identifiable manner for each of the identification information as required; screen erasing means for erasing the additional information; Features telelighting device. (2) The telewriting device according to claim (1), further comprising screen recovery means for each of the identification information.