JPS62226782A - Electronic conference system - Google Patents

Abstract

PURPOSE:To allow all participants to view a picture accurately at the same time by providing graphic display sections exceeding the number of conference participants displaying at least one of drawn data, still picture data and animation data. CONSTITUTION:Reception data (RXD) sent from a controller 900 is subjected to elimination of a device address (SAD) and a sender switching signal (PID) by a frame identifier (FID) and an identifier detection section 360, animation data (PRD) is sent to an animation decoding section 370a or 370b, drawn data is sent to a drawn picture decoding section 371a and still picture data is sent to a still picture decoding section 371b. The screen of a graphic display section 390 is split, and the drawn picture data, the still picture data, the animation data and the still animation data are displayed respectively on the split screen or displayed overlappingly.

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to an electronic conference system for holding meetings between remote points, and in particular to a graphic display device capable of displaying video data, still image data, and drawing data. The present invention relates to an electronic conference system having the following.

[Technical background of the invention]

2. Description of the Related Art Electronic conference systems have been known as systems for holding conferences between remote locations.

An example of such an electronic conference system is the one shown in FIG. As shown in the figure, this electronic conference system includes a microphone 1, a speaker 2,
A television camera 4, a television monitor 5, which displays images of the conference hall.
Controls a facsimile device 6, a hard copy device 12 consisting of a printer, an audio unit 7 that encodes and decodes audio signals from a microphone 1 and a speaker 2, an image unit 8 that encodes and decodes image signals, and an image unit 8. The control unit 9 includes a control unit 9 for inputting instructions from the control unit 9, an operation unit 10 for inputting instructions from the control unit 9, and a transmission unit 11 for transmitting and receiving audio signals and image signals.

[Problems with background technology]

However, in such a conventional electronic conference system, the video of the conference room and the manuscript etc. are only displayed as a video on one TV monitor 5, so when there are many conference attendees, the screen is easy to see for all conference attendees. I couldn't say that. For this reason, it is possible to use a monitor with a large screen, but this would be expensive and, depending on the location of the conference participants, the images may be difficult to see due to reflections from both sides.

[Purpose of the invention]

The present invention was made to solve these conventional problems, and an object of the present invention is to provide an electronic conference system that allows conference attendees to simultaneously and accurately create images.

[Summary of the invention]

In other words, the present invention provides an input system for inputting drawing data, still image data, moving image data, and audio data, an output system for outputting drawing data, still image data, moving image data, and audio data, and a remote point. In an electronic conference system in which a plurality of conference unit systems, each consisting of a transmission system that transmits and controls data, and a control system that controls the input, output, and transmission systems, are connected via lines, drawing data and The above object has been achieved by providing as many graphic display sections for displaying at least one of still image data and moving image data as there are meeting attendees who are objects of moving image data.

[Embodiments of the invention]

Embodiments of the present invention will be described in detail below based on the drawings.

FIG. 1 is a block diagram showing a conference unit system as an embodiment of the electronic conference system of the present invention.

In this embodiment, the control device [900 includes an input device consisting of a drawing system, a still image system, a moving image system, and an audio system, a soft copy system,
Output devices consisting of a hard copy system and an audio system are connected. Signals from these input devices and signals to output devices are subjected to processing such as selection and multiplexing according to several control information signals, and then transmitted.

The input device is a plurality of drawing input bags floo for inputting handwritten characters and figures.

A still image input device 2001 for inputting documents before or during the meeting; a video input device 300 for inputting conference attendees, the background of the conference hall, and videos; and an audio input device for inputting rY audio. ff400 is connected.

The video input devices 300 and the audio input devices 400 are arranged as many as the predetermined number of conference attendees, and correspond to the conference attendees.

In addition, as output devices, there are a plurality of flat display devices 1 for displaying the input information of the own terminal and the transmitted drawing type and still image type.
50 and graphic display device (1) 160, graphic display device (
1) A hard copy device 260 for making a copy of 3501, a graphic display device for displaying video input information transmitted from the own terminal, and (2) an audio output device 450 for outputting audio input information transmitted from 3501. It is connected.

These input/output information are recorded in the storage device 600 and read out as necessary. Each of these devices is
The transmission device 700 transmits data to other two remote locations via the control device.
connected to two conference unit systems.

The above input/output information includes the operation input device 8501 and the state detection device P800 for detecting whether conference attendees are seated or leaving their seats. The destination of the information is controlled by signals from devices such as speaker classification device 510, which determines the speaker from the voice of the interlocutor.

FIG. 2 is a block diagram showing the configuration of an example of the graphic display device (2) 350.

This graphic display device (2) 350 displays the input information of the own terminal and the transmitted moving image, and the control unit 9900
An identifier detection unit 360 for detecting a device address (SAD), a frame identifier (FID), and a speaker switching signal (PID) from the received data (RXD) output from the
, video combining units 370a and 370b that perform decoding of video data (PRD), a rendering masking unit 371a that performs decoding of rendering system, a rendering reproduction processing unit 372a that performs reproduction processing of rendering system, and still image A still image decoding unit 371b1 performs still image decoding, a still image reproduction processing unit 372b performs still image reproduction processing, a frame memory unit 380 for temporarily storing and compositing decoded image information, and a drawing, This graphic display device ('2) is composed of a display control unit 385 that displays still images, multiple moving images, and static moving images in a divided manner, and controls superimposition, and a graphic display unit 390 that displays various images. The operation of 350 will be explained below.

The received data (RXD) sent from the control unit 900 is composed of control information and image information. The control information includes a frame identifier (FID), a device address (SAD),
There is a speaker switching signal (PID), etc., and the image information is of three types: moving image data, drawing data, and still image data.

First, the identifier detection unit 360 detects this frame identifier (FI
D) It is detected whether it is drawing data, still image data, or moving image data, and then the device address (SAD) is detected to determine whether the own terminal is the other party's terminal. Furthermore, it is determined from which video input unit the video data is coming from based on the speaker switching signal (PID).

Next, the frame identifier (FID) and the identifier detection section 360
The device address (8AD) and talker switching signal (PI
The moving image data (PRD) from which D) has been removed is sent to the moving image decoding section 370a or 370b, and the moving image data compressed and encoded to 32 Kbps is decoded.

The video decoding unit 370a and 3 ob are the device address (
In response to SAD), two systems with the same configuration are provided to ensure correct decoding without delay even if the own terminal and the other terminal or the other terminals and the other terminals input input at the same time.

This decoded video signal (POUT) is temporarily stored in a predetermined area of the frame memory section 380, and a display screen is synthesized.

Based on the frame identifier (FID), drawing data is sent to the drawing decoding unit 371a, and still image data is sent to the still image decoding unit 371b. Thereafter, the two series are processed in the same way up to the frame memory section 380.

The drawing data decoded by the drawing decoding unit 371a is sent to the drawing reproduction processing unit 372a, subjected to interpolation processing necessary for graphic display, and sent to the frame memory unit 380.

The still image data decoded by the still image decoding section 371b is sent to the still image reproduction processing section 372b, where it undergoes video processing such as density exchange, enlargement, reduction, etc. necessary for graphic display, and is sent to the frame memory section 380. Ru.

Note that the frame identifier (
FID), device address (5AD), and speaker switching signal (PID) are sent to the graphic display unit 385, and the frame memory unit 380 displays a still image and a still image on the same screen.
Display control is performed to simultaneously or selectively display multiple divided displays or overlapping displays of moving pictures and static moving pictures of any two terminals, the own terminal and two partner terminals.

The moving image signal is then read from the frame memory section 380 at predetermined cycles and displayed on the graphic display section 390.

In the graphic display section 390, the screen is divided, and on the divided screen, drawing data, still image data, moving image data, and moving image data in a still state are displayed individually or in a superimposed manner.

Therefore, in this embodiment, a single graphic display device (2) 3
50, it is possible to display moving image data, still image data, and drawing data, and it is also possible to perform split display and overlapping display of these data without requiring any special operations. Note that the graphic display device (2) 350 may display either still image data or drawing data in a fixed manner.

〔Effect of the invention〕

As described above, according to the present invention, conference attendees can view images simultaneously and accurately, so that the conference can proceed smoothly.

[Brief explanation of drawings]

FIG. 1 is a block diagram of an embodiment of the present invention, FIG. 2 is a block diagram of a graphic display device (2), and FIG. 3 is a block diagram of a conventional electronic conference system.

Claims (2)

[Claims] (1) An input system that inputs drawing data, still image data, video data, and audible sound data, an output system that outputs drawing data, still image data, video data, and audible sound data, and a remote point. In an electronic conference system in which a plurality of conference unit systems are connected via a line, consisting of a transmission system that controls the transmission of data, and a control system that controls the input system, output system, and transmission system, An electronic conference system characterized in that the number of graphic display sections for displaying at least one of image data and video data is equal to or greater than the number of objects of video data. (2) The graphic display unit includes a frame memory unit that combines image data of drawing data, still image data, and moving image data, and stores and synthesizes the combined image data, and stores data in the frame memory unit. The electronic conference system according to claim 1, wherein the electronic conference system performs display based on image data.