JPS62157490A - Electronic conference system - Google Patents

Abstract

PURPOSE:To display plural data simultaneously even when there are plural data by providing an accumulating device to store plural static picture data, a static picture displaying means in which a displaying area is divided, a static picture data reading means and a displaying means and displaying to a prescribed displaying area for static picture data read from the accumulating device. CONSTITUTION:Static picture data obtained from a self-terminal or an opponent terminal are stored into an accumulating device 600, read from the accumulating device 600 by a reading means and displayed at the prescribed area of a plane displaying device 150. When the static picture data are plural, next one piece of the static picture displaying is read by a reading means, the static picture data are displayed at the prescribed area of the static picture displaying screen, one piece of the static picture data displayed earlier are read from the accumulating device 600 again and displayed at the another area of the plane displaying device 150. A sound output device 450 of the opponent terminal controls the position feeling of a stereo sound source at the time of sound reproduction and selects a decoding system at the time of reproduction by these pieces of control information.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to an electronic conference system for conducting conferences between remote points, and particularly to an electronic conference system capable of displaying still image data.

[Technical Background of the Invention] This type of electronic conference system is composed of a plurality of conference unit systems connected via lines, and for example, the one shown in FIG. 5 has been developed as this conference unit system. ing. As shown in the figure, this conference unit system includes a microphone 1, a speaker 2, a television camera 3 for controlling the conference room, a television camera 4 for copying originals, a television monitor 5, a facsimile device 6, and a hard copy printer. an audio unit 7 for encoding and decoding the audio signals of the device 12, the microphone 1 and the speaker 2;
An image unit 8 that encodes and decodes image signals (including video signals), and a control unit 9 that controls the image units.
, an operating unit 10 for inputting instructions from the control unit 9.
It is composed of a transmission unit 11 that transmits and receives audio signals and image signals.

[Problems with the Background Art] However, in such an electronic conference system, when displaying meeting materials, etc., the original is copied by the video camera 4 and displayed on the TV monitor 5. Since only one document can be displayed, there is a problem in that if you want to view the previous document out of a plurality of documents again, you have to capture and display the document again with the video camera 4.

[Object of the Invention 1] An object of the present invention is to provide an electronic conference system that can simultaneously display a plurality of materials even if there are a plurality of materials, in order to solve the above-mentioned problems.

[Summary of the Invention] In order to achieve the above object, the present invention provides a storage device that stores a plurality of still image data, still image display means having a divided display area, and still image data stored in the storage device. The apparatus is characterized in that it is provided with a reading means for reading the still image data, and a means for displaying each still image data read from the storage device by the reading means in a predetermined display area of the still image display means.

[Example of Actual Flow of the Invention] Hereinafter, an example of the present invention will be described in detail based on the drawings.

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

The control device 900 is connected to input devices for drawing, still image, moving image, and audio, and is also connected to output devices for magnetic recording, recording output, and audio. 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 are then transmitted.

The input devices include a plurality of drawing input devices 100 for inputting handwritten characters and figures, a still image input device 200 for inputting documents before or during the meeting, and input devices for meeting attendees and the conference room. A video input device 300 for inputting a background image, and an audio input device 400 for inputting audio.
is connected.

In addition, the output devices include a plurality of flat display devices 150 and a graphic display device (1) 160° graphic display device (1) 1 for displaying input information of the own terminal and transmitted drawing type and still image type.
A hard copy device 260 performs recording/output (copying) based on the information displayed at 60, and a graphic display device @ (2) 350 displays input information from its own terminal and the transmitted moving image.
, an audio output device 450 that outputs transmitted audio input information is connected.

Further, the storage 8 600 continues to record these input/output information. The transmission device 700 is connected to two or more other remote conference unit systems.

The above input/output information is transmitted by signals from devices such as an operation input device 850, a state detection device 800 that detects whether conference attendees are seated, and a speaker identification device 510 that determines the speaker from the voices of the conversation participants. is controlled.

A more detailed explanation will be given below for each device.

Screen Input/Output Device 100 FIG. 2 is a block diagram of the drawing input device 100.

This drawing input device 100 detects the coordinate position information of a handwritten figure, and when pressure is applied to the illustrated writing input surface, the drawing input device 100 uses a pressure detection method that outputs the coordinate data of the point where the pressure is applied. An input unit 101, a sampling unit 103 connected to the drawing entrance unit 101 that samples analog coordinate data, a Bentouch detection unit 104 that detects handwritten input, an input processing unit 105 connected to the sampling unit 103, and a drawing It consists of an encoding section 106 that encodes data, and an identifier adding section 109 that frames this encoded drawing data.

Note that the input ben 102 is for applying pressure to the writing input surface of the drawing input section 101 by drawing a figure or the like on the paper placed on the writing input surface.

Next up is this drawing input device! The operation of 1100 will be explained.

First, when pressure is applied to the writing input surface of the 116-stroke input unit 101 (that there is a Bent touch), it is detected from the signal output from the drawing input unit 101 that a writing input (Bent touch) has been made. Upon detecting the Bent touch, the Bent touch detection unit 104 outputs a control signal instructing the sampling unit 103 and the input processing unit 105 to start operation,
The sampling section 103 and the input processing section 105 are made operable.

This sampling section 103 samples the analog coordinate data output from the drawing input section 101 at a predetermined period, digitizes it, and outputs it to the input processing section 105.

The input processing unit 105 receives the coordinate data output from the sampling unit 103 and checks whether or not this coordinate data is appropriate as a coordinate value. When this happens, interpolation processing or the like is performed to correct the coordinate data based on the previous coordinate data.

Furthermore, when a control signal is given from the input analysis unit 108 (described later) with a command indicating partial deletion, a frame (described later) surrounded by the closed curve is determined based on the coordinate data of the closed curve output from the sampling unit 103. Memory section 1
All the coordinate data of the area within 52 are logically rOJ (rO
(J indicates data that becomes the background color when displayed) is created and output.

Next, the encoding unit 106 encodes the drawing data output from the input processing unit 105 and outputs it to the identifier adding unit 109.

Further, the identifier adding unit 109 adds a frame identifier (FID) indicating that the drawing data is drawing data to the drawing data, and outputs it to the control device 900 .

Note that reference numeral 107 indicates a switch input section, through which the operator can input commands such as cursor display, partial erasure, full-scale erasure, etc.

It was also connected to the switch input section 107. Input analysis section 1
08 analyzes the data output from the switch input section 107 to determine which command the data indicates, and based on the analysis result, inputs a corresponding control signal to the input processing section 105 and the encoding section 1O6. Output to.

Flat display device 150 FIG. 3 is a block diagram of the flat display device 150.

This flat display device 150 displays drawing data or still image data, and is an LCD (Liquid(:, r
ystal D 1spray), a frame memory section 152 in which image data is stored, a drawing reproduction processing section 153 that performs drawing or reproduction of still images, a still image reproduction processing section 154, and image information. The drawing decoding section 155 and still image decoding section 156 decode drawing data or still image data, and an identifier detecting section 157 that identifies control information.

As shown in FIG. 4(a), this flat display section 151 has a normal display amount of 1 it! 151-1 and five display areas 151-2 to 151-6 of the reduced screen.

The image data stored in the frame memory section 152 is read out and displayed on the display area 151-1 of the flat display section 151.

Furthermore, still image data of another document is sent from the control device 900. This document is subjected to the same processing as the previous document and is displayed as shown in FIG. 4(b). At this time, since the still image data of the previous document is stored in advance in the storage device 600, which will be described later, the control device 900 controls the storage device 600.
The image data of the previous document is read from and sent to this flat display device 15o. Then, the flat display device 150 displays the previous document in the display area 151-2.

Similarly, still image input device 200 or transmission control device 7
When the image data is sent to the control device 900 via 00, the control device 900 sends this image data to the flat display device 150, and displays the previously displayed image data as shown in FIGS. 4(C) and 4(d). The original is displayed in the display areas 151-2 to 151-6, and newly sent image data is displayed in the display area 15.
Display it on 1-1. In addition, display areas 151-2 to 151-
The image data to be displayed on the screen 6 is thinned out and then stored in a predetermined area of the screen memory of the flat display device 150. Therefore, reduced display is performed in display areas 151-2 to 151-6.

The operation of this flat display device 150 will be explained below.

First, control information and image information are sent from the control device 900 to the identifier detection unit 157.

This control information consists of a frame identifier (FID), a device address (SAD), a page tI11 control (PAGE), etc., and there are two types of image information: drawing data and still image data. In the drawing data, commands for, for example, cursor movement are incorporated into coordinate position information. Further, the still image data includes data whose run length is compressed using a method used in modified read (MR) codes, for example.

Next, in the identifier detection unit 157, a determination is made as to whether it is drawing data or still image data based on the frame identifier (FfD) of the control information, and the drawing data is sent to the drawing decoding unit 155, and the still image data is determined as still image data. Decoding section 15
Sent to 6.

The drawing data decoded by the drawing decoding unit 155 is sent to the drawing processing unit 153, where interpolation processing of coordinate data necessary for graphic display is performed, and the data is sent to the frame memory unit 152.

The still image data decoded by the still image decoding section 156 is sent to the still image reproduction processing section 154, where image processing such as linear density conversion, enlargement, reduction, etc. necessary for graphic display is performed, and the data is sent to the frame memory section 152. sent to.

Image data output from the drawing reproduction processing section 153 or the still image processing section 154 is written into the frame memory section 152. The image data stored in the frame memory section 152 is read out and displayed on the flat display section 151 at predetermined cycles.

In other words, still image data obtained from the own terminal or the other party's terminal is stored in the storage device 600, read from the storage bag H600 by the reading means, and then displayed on the flat display device 15.
0 in a predetermined area.

When there are multiple pieces of still image data, the reading means reads the next piece of still image data, and this still image data is displayed in a predetermined area of the still image display screen. The still image data for one image is read again from the storage bag ff1600 and displayed on the flat display device 1.
50 separate areas.

L) is added. Audio output device 450 of the other party's terminal
Then, these control information are used to control the sense of position of the stereo sound source during audio reproduction and to select the decoding method during reproduction.

[Effects of the Invention] As explained in detail above, in the present invention, the display area of the still image display means is divided and still image data for a plurality of images are displayed on the still image display means. Even if there are documents, they can be displayed at the same time, allowing for efficient meetings.

[Brief explanation of drawings]

FIG. 1 is a block configuration diagram showing an embodiment of a conference unit system according to the present invention, FIG. 2 is a block configuration diagram of a drawing input device, FIG. 3 is a block configuration diagram of a flat display device, and FIG. 4 is a planar configuration diagram. FIG. 5, which is a diagram showing a display method of a display device, is a block diagram of a conventional conference unit system. 150...Flat display device 151.
......Flat display section 152...
...Frame memory section 153...
...Drawing reproduction processing section 154...
・Still image reproduction processing section 155...... Drawing decoding section 156... Still image decoding section 157... ...Identifier detection unit 20
0...Still image input device 600...
......Accumulation device 700...
・・・・Transmission device 850 ・・・・・・・・・Operation input device 900 ・・・・・・・・・・・・・・・・・ Control device Applicant: Toshiba Corporation Agent Patent attorney: Sasa Suyama - Figure 1 Figure 4

Claims (1)

[Claims] In an electronic conference system in which a plurality of conference unit systems that transmit at least still image data based on an information recording medium and reproduce a display based on the transmitted still image data are connected via a line, the system is based on a plurality of information recording media. a storage device that stores the still image data; a still image display device whose display area is divided into a plurality of parts; a reading device that reads the still image data stored in the storage device; and means for displaying each still image data based on an information recording medium in a predetermined display area of the still image display means.