JPS61224683A - Communication conference device - Google Patents

Abstract

PURPOSE:To make the attribution specification at the time of inputting picture information in order to display or erase it unnecessary by handling input information so that it can act as common information or personal information in accordance with the terminal when picture and control information is inputted. CONSTITUTION:When the 1st communication conference terminal 11 is of a demonstrator and a communication conference terminal for the 2nd and 3rd 11 is of a listener, the common information 911 inputted by the 1st is transmitted to the 2nd and 3rd through a data transmitting and receiving line 355 being a communication line, displayed and stored in a common information file 63. Then the demonstration turn is shifted to the 2nd through a communication conference controller 13 and the 2nd inputs the common information 912. Then it is transmitted to the 1st and 3rd listens through the data transmitting and receiving line 355 being the communication line, displayed and stored in the common information file. Here the common information has the attribute of each terminal into which said information is inputted, and accordingly such discrimination can be possible which terminal the common information is inputted through. A piece of personal information 921, 922 and 923 inputted when each terminal is in a listener mode is stored on the personal information file inherent to each terminal.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a communication conference device that transmits and receives image information and control information for controlling the display of the image information using a communication line.

[Background of the invention]

Partial erasure of image information in conventional teleconferencing devices is known, for example, in Japanese Patent Application Laid-Open No. 57-193855 or Japanese Patent Application Laid-open No. 57-19385.
As described in No. 174759, a partial area of a display image is designated as an erasing area, and image information contained within that area is erased. Image information with various attributes,
For example, when displaying calligraphy, drawings, drawings, memos, natural drawings, etc. as the same image in a superimposed manner, displaying and erasing them requires specifying the attribute (for example, by inputting from a switch on the keyboard).

[Purpose of the invention]

One object of the present invention is to provide a communication conference device that displays and erases image information and eliminates the need to specify attributes when inputting image information.

[Summary of the invention]

The present invention provides a teleconferencing device (
system), if one of the terminals is the explainer and the other terminal is the audience, the terminal that has the right to explain (explainer)
, enter the common information that affects the own terminal and other terminals,
In addition, we focused on the point that terminals (audience members) who are simultaneously listening to the common information input personal information that affects only their own terminal (2), and whether the information input to each terminal is common information or personal information. This automatically determines whether the input information is the same, and allows input information to be displayed and deleted without specifying attributes.

[Embodiments of the invention]

An embodiment of the present invention will be described below regarding a teleconferencing system having an image display device. FIG. 2 shows a teleconferencing system consisting of two teleconferencing terminals 11 and one teleconferencing control device 13. An embodiment of the present invention using two teleconference terminals will be described below. A block diagram of the teleconference terminal 11 is shown in FIG. The communication conference terminal 11 includes a main control section 31, an information input/output section 32, and an image information processing and display section 33.
and a communication buffer 3 that sends and receives data to and from other terminals.
4, each connected by a system node 37 including an address bus, a data bus, and a control bus.

Furthermore, the main control unit 31 includes a CPU 311, an arbiter 312 that transfers the right to transmit (hereinafter referred to as explanation right) when communicating with other teleconference terminals, a disk 314 that files image information, and a disk that controls the nuclear disk. It consists of a controller 313 and a memory 315 that stores data from the disk controller. The information input unit 32 also includes a tablet 32 for inputting handwritten characters, shapes, etc.
2. Keyboard 323 for inputting commands such as erasing notes;
It is composed of an information input controller 321 that controls the tablet 322 and the keyboard 323. Furthermore, the image information processing display section 33 controls a refresh memory 332 that stores image information currently being displayed, a CRT controller 333 that displays the contents of the refresh memory 332 on the CB and T334, and the CRT controller 333. document processor 331 for updating image information;
Furthermore, it is comprised of a local bus 335 that connects the refresh memory 332, CRT controller 333, and doquiniment processor 331.

FIG. 4 shows a circuit diagram of the teleconference control device 13. Explanation right request signals R1 to R, 411 and explanation right permission signals 01 to G, 4 in which a communication conference terminal requests an explanation right in a communication conference.
41, explanation right acquisition signal BSYs=BSY, 412, data transmission/reception line DATr-DAT, 355, latch register 41 which has explanation right transfer request signal CR461 and latches the explanation right request redemption code 411, output of the latch register. a priority encoder 42 that encodes a priority employee from a priority staff member; a decoder 43 that decodes the priority employee; a latch register 44 that latches the decoded output and outputs the explanation right permission signal 441; It is composed of a data channel control section 45 that performs data transmission/reception line switching. Also, the latch register 41.4
4 is the clock φ1. It is latched at the timing of φ2, and cleared by the explanation right acquisition signal 412 which is pulled up by the resistor 413 and wired OR connected. Further, the explanation right transfer request signal 461 is the explanation right request redemption code 411.
This is the output signal of the OR gate 46 which calculates the logical sum of . Note that the subscripts 1 to n of the signal name indicate the communication conference terminal number.

Figure 5 shows the arbiter 31 in the block diagram of the communication conference terminal in Figure 1.
The circuit diagram of 2 is shown. When the arbiter 312 is powered on,
A set signal 362 is outputted via the system bus 37, and the explanation right request signal R, 411 is turned off by resetting the F/F 51-a through the NOR gate 55.
't and 0 through the gate 54, triggers the one-shot circuit 52, and its output pulse causes the F/F 51-b
By clearing the explanation right acquisition signal B8Y, 41
2 to 0FFL, and the control signal 361 to the disk controller 313 instructs the audience mode. Here, in audience mode, it is possible to delete and display personal information without having the right to explain. Next, when the explanation right request switch on the keyboard 323 is turned on, the information input controller 32
1 outputs the request signal R8W362 through F/F
Set 51-a and turn on the explanation right request signal R, 411.
do.

Then, the conference control device 13 shown in FIG. 4 returns an explanation right permission signal of 0.441, and the data control unit connects the channel CHI and the channel CH2, and connects the data transmission/reception line DAT.
1 and the DAT2355 can now be sent and received.

The operations of the teleconference terminal 1, which has acquired the right to explain as described above and has entered the presenter mode, and the conference terminal 2, which has not had the right to explain and has entered the audience mode, will be described with reference to FIG. FIG. 6 shows an example of the internal file structure of the disk 314 shown in FIG. 1, which stores a calligraphy file 62 prepared in advance and common information that should be known to the audience as an explainer, such as the progress of the conference. It has an explainer memo file 63 and an audience memo file 64 which is not sent to other conference terminals as personal information when the explanatory right is transferred to another conference terminal and the person becomes an audience member. Here, on the conference terminal that became the audience, the operation when only a certain part of the personal information is deleted from the image information in which the common information 1 personal information is displayed in a complicated manner is shown in the 70-chart in Figure 7 and the 1st This will be explained using FIG.

In step 701, the keyboard 323 is used to designate a boundary line input indicating the erasing area. At 3tep 702, the input from the coordinate input device, tablet 322, is recognized as a boundary line. In step 703, a boundary line is input from the tablet 322. In step 704, a closed area is recognized based on the input boundary line. At Ff3tep 705, an internal erase command is input using the control information input device, keyboard 323. Stem) 706 recognizes the erased area.

In step 708, it is determined whether the current teleconference terminal is a presenter or an audience member. Since this is the case of an audience member, the disk controller 313 determines that the file to be accessed is the personal information file 64 based on the control signal 361.

In step 709, the Okato information file 64 for the currently displayed page 61 is read from the disk 314 via the disk controller 313 and stored in the memory 315.

In step 711, the memory is divided into a memo inside the erased area and a memo outside the erased area. At 3tep 712, the memory in the erase area on the riff V-tunyu memory 332 is erased via the document processor 331. In step 713, a memo (
The personal information file 64) is updated. With the above processing flow, any part of the information having the attribute of personal information in the display image information can be deleted without inputting the attribute of personal information. Of course, on the presenter's conference terminal, 9tep 7
By executing 5tep710 instead of step 09, the common information of the explainer memo common information file 63 can be similarly deleted.

Next, the flowchart in FIG. This will be explained using FIGS. 1 and 6.

In step 3 801, a memo is input from the coordinate input device tablet 322. In step 802, it is determined whether the teleconference terminal 11 is currently a presenter or an audience member. In the case of the presenter, the disk controller 313 uses the control signal 361 to specify that the file to be accessed is the common information file 63.
I judge that. At 3tep 804, the document processor 331 superimposes the memo on the refresh memory 332 in which the information currently being displayed on the CRT 334 is stored. In step 805, the CPU 311 transmits the memo to the teleconference terminal 11, which is another audience member, via the communication buffer. At this time, the other teleconference terminal displays the received memo common information in a superimposed manner. In step 806, the memo is stored in the common information file 63 corresponding to the currently displayed page information 61. Similarly, the communication conference terminal 11
If you are in audience mode, execute step 803 and save the input memo to the personal information file and audience memo file 64.
Store and memorize.

Next, a teleconferencing system having n teleconferencing terminals 11 will be described using FIG. FIG. 3 shows a teleconferencing system consisting of n teleconferencing terminals 11 and one teleconferencing control device 13. In this system, for example, when the teleconference terminal 11 with terminal number 3 requests an explanation tank, the arbiter 312 in FIG. 1 outputs an explanation tank request signal R5411 via the communication line 12. The communication conference control device 13 that has received the explanation right request redemption code R5411 returns an explanation tank permission signal 441 according to the priority order. Teleconference terminal 1 with terminal number 3
When 1 acquires the explanation tank and becomes the explainer, all other teleconference terminals become listeners. The input, display, and deletion of common information and the input, display, and deletion of personal information are the same as in the case of the teleconference system with 112 teleconference terminals described above.

When another communication conference terminal requests an explanation tank, the communication conference control device 13 outputs an explanation tank transfer request signal 461.

Then, communication control terminal 1 with terminal number 3, which had an explanation tank,
1 turns the explanation tank request signal 411 OFF, transfers the explanation tank, and moves the explanation tank to another communication control terminal 11. By repeating the above operations, the explanation tank moves one after another, and each time it is possible to input and delete the common information 2 personal information as described above.

Next, an application example of the present invention will be explained using FIG. 9 and FIG. 1O. Both FIGS. 9 and 10 are configuration diagrams of a teleconferencing system having three teleconferencing terminals 11 and one teleconferencing control device 13. FIG. 10 shows a conventional example, and FIG. 9 shows an example of application of the present invention.

In the figure, subscripts 1 to 3 attached to the teleconference terminals 11 are terminal numbers.

First, the first teleconference terminal 11 (hereinafter referred to as No. 1) becomes the presenter, and the other teleconference terminals 11 No. 2 and 3 (hereinafter referred to as No. 2 and 3) become the audience. Then, the common information 911 and 1011 input by No. 1 is transmitted to audience No. 2 and No. 3 through the data transmission/reception line 355, which is a communication line, and is displayed and stored in the common information file 63. Next, the explanation tank is moved to No. 2 via the communication conference control device 13,
When No. 2 inputs the common information 912 and 1012, it is transmitted to audience Nos. 1 and 3 through the data transmission/reception line 355, which is a communication line, and is displayed and shared in the common information file 63.
is memorized. Further, the same applies to common information 913 and 1013 inputted by No. 3 as the explainer. Here, the common information does not have attributes of the input terminal in the conventional example shown in FIG. 10, but has attributes for each input terminal in the applied example of the present invention shown in FIG. 9. The common information for conventional examples is 1011.10
12° 1013, the numbers 2.3 (instead of the numbers displayed as ■, ■, and 0) make it possible to identify which terminal the common information was input from. If the attributes are color-coded (for example, red, blue, yellow), the effect can be easily seen. Furthermore, the common information can be stored by preparing and managing a plurality of common information files 63 in FIG. 6 for each terminal. Further, the personal information 921, 922, and 923 input when each terminal is in the audience mode is the same in the conventional example 1, the present invention, and the applied example, and is stored in a personal information file 64 unique to each terminal. Although the above description has been made for the case where there are three teleconference terminals, the same applies even when there are n teleconferencing terminals.

〔Effect of the invention〕

According to the first invention, each teleconference terminal has an attribute of a presenter or an audience member, and in the case of a presenter, common information is transmitted.
In the case of audience members, personal information is provided without specifying attributes.
Input can be displayed and deleted.

According to the second invention, it is possible to identify from which teleconferencing terminal the image information displayed in a superimposed manner is input.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of a teleconferencing terminal showing an embodiment of the present invention; the second factor is a configuration diagram of a teleconferencing system having two teleconferencing terminals and one teleconferencing control device to which the present invention is applied; FIG. 3 is a configuration diagram of a teleconferencing system having n teleconferencing terminals and one teleconferencing control device to which the present invention is applied, FIG. 4 is a circuit diagram of the teleconferencing control device, and FIG. 5 is a teleconferencing terminal. 6 is a diagram of the file structure within the communication conference terminal, FIG. 7 is a flowchart showing the memo information deletion procedure, FIG. 8 is a flowchart showing the memo information input procedure, and FIG. 9 is a flowchart showing the memo information input procedure. An example of the application of , Figure 10 is 9
This is a conventional example used for comparison with the figure. 11... Communication conference terminal, 12... Communication line, 13.
...Communication conference control device, 31...Main control section, 32...
- Information input section, 33... Image information processing display section, 34.
...Communication buffer, 37...System path, 311.
...CPU. 312...Arbiter, 313...Disk controller, 314...Disk, 315...Memory, 3
21... Information input controller, 322... Tablet, 323... Keyboard, 331... Document processor, 332... Refresh memory, 3
33...CRT near y) a'-ra, 334-
CRT, 335-...local bus, 355...
Data transmission/reception M, 41° 44...Latch register, 4
2...Priority encoder, 43...Decoder, 45...Data channel control unit, 46...OR
Gate, 411...Explanation right required * signal, 412...Request right acquisition signal, 413...Resistance, 441...Explanation right permission signal, 461...Explanation right transfer request signal, 51...
・F/F, 52...One-shot circuit, 53...AND gate, 54...0 gate, 55...NOR
Gate, 56... Inverter, 61... One page screen information file, 62... Calligraphy file, 63...
・Common information file, 64...Personal information file, 9
11~913.1011~1013...Common information, 9
21-923...Personal information. ,''\ Figure 4 tJ JJ(

Claims (1)

[Claims] 1. Communication using a plurality of teleconferencing terminals that transmit and receive image information such as calligraphy, drawings, charts, memos, natural images, etc., and control information for controlling the display of the image information, etc., via a communication line. In the conference device, the teleconferencing terminal has a first state where the input image information and control information are handled as common information that affects the own terminal and other terminals, and a first state where the input image information and control information are handled only on the own terminal. 2. Handled as personal information that affects
A teleconferencing device is characterized in that it has two states, and handles input information so as to act as common information or personal information, depending on the state of the terminal at the time the image information and control information are input. . 2. In claim 1, when common image information input from each terminal is displayed in a superimposed manner, each image information input as common image information from each terminal is required to include information on which terminal it was input from. What is claimed is: 1. A communication conference device characterized in that identification information is provided to identify the image information, and the image information displayed in a superimposed manner on the same screen is displayed in a manner that distinguishes from which terminal the image information is input.