JPH0258443A - Picture communicating system - Google Patents

Picture communicating system

Info

Publication number
JPH0258443A
JPH0258443A JP63208225A JP20822588A JPH0258443A JP H0258443 A JPH0258443 A JP H0258443A JP 63208225 A JP63208225 A JP 63208225A JP 20822588 A JP20822588 A JP 20822588A JP H0258443 A JPH0258443 A JP H0258443A
Authority
JP
Japan
Prior art keywords
packet
image
human
pictures
signal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP63208225A
Other languages
Japanese (ja)
Inventor
Yuichi Sato
裕一 佐藤
Kazunori Shimamura
和典 島村
Hidenori Okuda
奥田 英範
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP63208225A priority Critical patent/JPH0258443A/en
Publication of JPH0258443A publication Critical patent/JPH0258443A/en
Pending legal-status Critical Current

Links

Landscapes

  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

PURPOSE:To simultaneously transmit and display pictures without switching a human being image, and pictures and writings in a video conference system by using a packet line to simultaneously transmits plural pictures and a packet multiplexing/separating means. CONSTITUTION:Input signals from a camera 1 for the human being image and a camera 3 from the pictures and writings are encoded and converted by video encoders 5 and 7, sound signals from a microphone 13 are encoded and converted by a voice encoder/decoder 17, and respectively inputted to a packet multiplexing/separating device 32. The packed line 34 can know a ground sent by an address code, and the arrived packet detects signal classification by a packet multiplexing/separating device 33, decodes it by respective video decoders 26 and 24, and simultaneously monitor-displays on monitors 22 and 20 for the pictures and writings and for the human being image. The sound signals from an input/output terminal 44 are decoded by a voice encoder/decoder 18, and outputted from a speaker 16. Thus, the video conference can be executed on both A and B sides while the motions of the human being image, and the pictures and writings are being observed.

Description

【発明の詳細な説明】 (発明の属する技術分野) 本発明は、遠隔地間をディジタルパケット回線で結び、
音声と複数の動画像を用いて会議や講議等のテレビ会議
に使用される画像通信方式に関す(従来の技術) 従来のテレビ会議方式は、第3図に例示するようなシス
テム構成で行っている。これは、A、B2地点間をディ
ジタル回線で結び行う場合を示す。
DETAILED DESCRIPTION OF THE INVENTION (Technical field to which the invention pertains) The present invention relates to connecting remote locations using digital packet lines.
Related to an image communication system used for video conferences such as conferences and lectures using audio and multiple moving images (prior technology) Conventional video conference systems are implemented with a system configuration as illustrated in Figure 3. ing. This shows a case where two points A and B are connected by a digital line.

図において、1,2は人物像用カメラ、3.4は′JF
両用カメラ、5,6および7,8は夫々人物像用および
書画用の各ビデオ符号器、9,10は切換スイッチ1.
1.12の操作部、 13.14はマイク、15゜IG
はスピーカ、17.18は音声用符号・復号器、19゜
20は人物像用モニタ、21.22は書画用モニタ、2
3゜24および25.26は夫々人物像用および書画用
の各ビデオ復号器、27.28は切換スイッチ、29.
30は多重分離装置、31はA、B地点の多重分離装置
を結ぶディジタル回線である。
In the figure, 1 and 2 are cameras for human images, and 3.4 are 'JF
Dual-purpose cameras; 5, 6 and 7, 8 are video encoders for human images and documents, respectively; 9, 10 are selector switches 1.
1.12 is the operation unit, 13.14 is the microphone, 15° IG
is a speaker, 17.18 is an audio encoder/decoder, 19.20 is a human image monitor, 21.22 is a document monitor, 2
3.24 and 25.26 are video decoders for portraits and drawings, respectively; 27.28 is a changeover switch; 29.
30 is a demultiplexing device, and 31 is a digital line connecting the demultiplexing devices at points A and B.

なお、操作部9または10で切換操作される切換スイッ
チ+1または■2がa側に切換えられると、切換スイッ
チ28または27がa側に切換えられるように、制御信
号をディジタル回線31を介してa側またはA側に伝送
する。また、b側への切換えも同じであり、a側は人物
像用、b側は書画用である。
Note that when the changeover switch +1 or ■2 operated by the operation unit 9 or 10 is switched to the a side, a control signal is sent to the a side via the digital line 31 so that the changeover switch 28 or 27 is switched to the a side. side or A side. The same goes for switching to the b side; the a side is for human images, and the b side is for calligraphy and drawings.

また1図の実線はテレビ画像あるいは音声信号の流れ、
破線は制御信号の流れを夫々示す。
In addition, the solid line in Figure 1 represents the flow of TV images or audio signals.
Broken lines indicate the flow of control signals, respectively.

上記ディジタル回線31は1回線交換全2重回線で構成
されており、A側からB側へ音声信号およびテレビ画像
信号を伝送すると同時に、B側からA側へ同様の信号を
伝送することができる。
The digital line 31 is composed of a single-circuit-switched full-duplex line, and is capable of transmitting audio signals and television image signals from the A side to the B side, and at the same time transmitting the same signals from the B side to the A side. .

次に、動作概要を述べると、操作部9でA側の切換スイ
ッチIIがa側に切換えられている時には。
Next, an outline of the operation will be described. When the changeover switch II on the A side is switched to the a side on the operation section 9.

人物像用カメラ1の出力が人物像用ビデオ符号器5によ
ってディジタル信号に変換される。また、マイク13か
ら入力した音声信号は、音声用符号・復号器17でディ
ジタル信号に変換される。これらの両信号は多重分離装
置29で時分割多重化され、ディジタル回線31を介し
てB側に伝送される。
The output of the portrait camera 1 is converted into a digital signal by a portrait video encoder 5. Furthermore, the audio signal input from the microphone 13 is converted into a digital signal by the audio encoder/decoder 17. Both of these signals are time-division multiplexed by the demultiplexer 29 and transmitted to the B side via the digital line 31.

F3側では多重分離装置30によって音声信号とビデオ
画像信号とが分離され、前述したように切換スイッチ2
8がa側に切換えられているので、人物像用ビデオ復号
器24によって復号されて人物像用モニタ20にテレビ
画像が出力されるとともに、音声用符号・復号器18に
よって復号されてスピーカ16を駆動する。
On the F3 side, the audio signal and the video image signal are separated by the demultiplexer 30, and as described above, the selector switch 2
8 is switched to side a, the human image video decoder 24 decodes the television image and outputs it to the human image monitor 20, and the audio encoder/decoder 18 decodes the television image and outputs it to the speaker 16. Drive.

もし、A側で机上の図面などの画像を送信する必要が生
じると、操作部9により切換スイッチ11をa側からb
側に切換えて、書画用カメラ3の出力を書画用ビデオ符
号器7でディジタル信号に変換し、前記と同様、多重分
離装置29.ディジタル回線31および多重分離装置3
0を介し、B側では切換スイッチ28のb側を経て書画
用ビデオ復号′a26にて復号され、書画用モニタ22
に表示される。
If it becomes necessary to send an image such as a desk drawing on the A side, use the operation unit 9 to switch the changeover switch 11 from the A side to the B side.
The output of the document camera 3 is converted into a digital signal by the document video encoder 7, and the demultiplexer 29. Digital line 31 and demultiplexer 3
0, and on the B side, it is decoded by the calligraphy video decoder 'a26 via the b side of the changeover switch 28, and the calligraphy monitor 22
will be displayed.

L記はA側を送信側に、B側を受信側として説明したが
、その逆の場合も全く同様である。
Although the explanation in Section L has been made assuming that the A side is the transmitting side and the B side is the receiving side, the reverse case is exactly the same.

以上述べた従来の構成から明らかなように1例えば書画
を伝送表示している時には人物像は見ることができない
欠点があり、その反対の場合も同様で、何れか一方であ
る。また、これを同時に見ることを可能にするためには
1人物Fk (1?号用と別に画像信号用のディジタル
回線を設ければよいが、従来のディジタル回線は回線交
換であるため、極めて高価であるので、経済的見地から
実用的でなし葛。
As is clear from the conventional configurations described above, there is a drawback that, for example, when a calligraphy or painting is being transmitted and displayed, a person's image cannot be seen, and vice versa. In addition, in order to be able to view this at the same time, it would be possible to install a digital line for image signals separately from that for one person Fk (1?), but since conventional digital lines are line-switched, they are extremely expensive. Therefore, it is not practical from an economic point of view.

(発明の目的) 本発明の目的は、テレビ会議方式において1人物像と書
画像のように複数の画像を切換えることなく、経時的に
複数の画像を同時に伝送し、表示できる画像通信方式を
提供することにある。
(Object of the Invention) An object of the present invention is to provide an image communication system that can simultaneously transmit and display multiple images over time without switching between multiple images such as a single person image and a calligraphy image in a video conference system. It's about doing.

(発明の構成) (発明の特徴と従来技術との差異) 本発明は、複数の画像を切換え操作を必要とせず、複数
の画像を同時に伝送しつるパケット回線およびそのパケ
ット多重分離手段を用いることを特徴とする。
(Structure of the Invention) (Characteristics of the Invention and Differences from the Prior Art) The present invention uses a packet line and packet demultiplexing means for simultaneously transmitting multiple images without the need for switching between multiple images. It is characterized by

従来技術では、第3図で述べたように複数の画像を同時
に伝送・表示できないが、本発明はこれを可能とした点
が異なる。
In the conventional technology, it is not possible to simultaneously transmit and display a plurality of images as described in FIG. 3, but the present invention is different in that this is possible.

(実施例) 第1図は本発明の一実施例によるシステム構成図を示し
、前記第3図の数字記号と同一のものは同じものである
ので、説明を省略する0本実施例は、A側、B側の2地
点間をパケット回線34を介して夫々のパケット多重・
分離装置32.33を結び、第3図で示す切換スイッチ
11. +2.27.28およびこれの操作部9,10
を不要とした点が異なる。
(Embodiment) FIG. 1 shows a system configuration diagram according to an embodiment of the present invention. Since the same numbers and symbols as in FIG. 3 are the same, explanations will be omitted. Packets are multiplexed between two points on the side and B side via the packet line 34.
The separation devices 32, 33 are connected and the changeover switch 11. shown in FIG. +2.27.28 and its operating parts 9 and 10
The difference is that it is not necessary.

ここで、35.36および40.41は夫々パケット多
重・分離装置32および33の出力端子で、1’F両用
モニタ21.22.人物両像用モニタ19.20に、“
15力される。
Here, 35.36 and 40.41 are the output terminals of the packet multiplexing/demultiplexing devices 32 and 33, respectively, and the 1'F dual-use monitors 21, 22. “
15 power is applied.

また、 37.38および42.43は夫々パケット多
重・分離装rvi32および33の入力端子で1人物画
像用カメラ1,2.i画用カメラ3,4からのビデオ信
号、マイク13.14からの音声信号が入力される。
Further, 37.38 and 42.43 are input terminals of the packet multiplexing and demultiplexing devices rvi 32 and 33, respectively, and are connected to the cameras 1, 2, . Video signals from the i-picture cameras 3 and 4 and audio signals from microphones 13 and 14 are input.

また、39.44は入出力端子で、音声用符号・復号器
17.18と接続されている。
Further, 39.44 is an input/output terminal, which is connected to the audio encoder/decoder 17.18.

本発明の主要部を構成するパケット多重・分離装置32
(または33)の符号構成例を第2図に示す。
Packet multiplexing/demultiplexing device 32 constituting the main part of the present invention
(or 33) is shown in FIG. 2.

回倒は第1図のA側からB側へのパケット多重・分離装
置32について示す。図において+ Pl 1 P7.
 IP、は3個のパケットで、各パケットは同図(a)
に示すように、ヘッダ一部■(□、H,,H,と、デー
タ部D□、 D、、 D、で構成される。このデータ部
は、各符号器5,7.17および6,8.18の符号化
出力信号そのものである。ヘッダ一部H1゜H,、H3
は同図(b)に示すように3つの部分に分別されている
。すなわち、符号Sはパケットの始まりを示す先頭符号
、符号Bはそのパケットを受信すべき対地を示すアドレ
ス符号、次の2桁の2進数は信号の種別を示す信号識別
信号である。本実施例では、人物像ビデオ信号を’ 1
1 ”で、書画ビデオ信号を”10’″で、そして、音
声信号をII OL IIで表わしている。次のN1(
i=1,2゜3)は当該パケットに含まれる情報量をバ
イト単位で示すデータ長信号、di(i=1,2.・・
・・・・)は第i番口のデータ(バイト)、Eはパケッ
ト終了を示す終了信号である。
The rotation is shown for the packet multiplexing/demultiplexing device 32 from the A side to the B side in FIG. In the figure + Pl 1 P7.
IP, consists of three packets, and each packet is shown in the same figure (a).
As shown in the figure, it consists of a header part ■(□, H,, H, and a data part D□, D,, D. 8.18 encoded output signal itself.Header part H1゜H,,H3
is divided into three parts as shown in FIG. 2(b). That is, the code S is a leading code indicating the start of the packet, the code B is an address code indicating the destination to receive the packet, and the next two-digit binary number is a signal identification signal indicating the type of signal. In this embodiment, the human image video signal is
1", the document/image video signal is represented by "10'", and the audio signal is represented by II OL II. The following N1 (
i=1,2゜3) is a data length signal indicating the amount of information included in the packet in bytes, di(i=1,2...
) is the i-th data (byte), and E is an end signal indicating the end of the packet.

これらのパケットは情報が生起する毎に発生し、情報が
発生しなければパケットは送出されない。
These packets are generated each time information occurs, and if no information occurs, the packet is not sent.

このような構成機能を有する本実施例の動作について、
A側からB側へ信号を送る場合を説明する。
Regarding the operation of this embodiment having such configuration functions,
The case where a signal is sent from side A to side B will be explained.

人物像用カメラ1からの入力信号は、人物像用ビデオ符
号器5によってディジタル信号に符号化変換される。こ
の符号化出力は、入力端子37を経てパケット多重・分
離′!A置32に入力される。これと同様に、書画用カ
メラ3からの入力信号は、書画用ビデオ符号器7でディ
ジタル信号に符号化変換される。この符号化出力は、入
力端子38を経てパケット多重・分離装置32に入力さ
れる。また。
The input signal from the human image camera 1 is encoded into a digital signal by the human image video encoder 5. This encoded output is sent to the input terminal 37 for packet multiplexing/separation'! It is input to the A position 32. Similarly, the input signal from the document camera 3 is encoded into a digital signal by the document video encoder 7. This encoded output is input to the packet multiplexing/demultiplexing device 32 via the input terminal 38. Also.

マイク13からの音声信号は、音声用符号・復号器17
でディジタル信号に符号化変換され、入出力端子39を
経てパケット多重・分離装置32に入力される。すなわ
ち、各入力信号が同時に入力される。
The audio signal from the microphone 13 is sent to an audio encoder/decoder 17.
The signal is encoded into a digital signal and input to the packet multiplexing/demultiplexing device 32 via the input/output terminal 39. That is, each input signal is input simultaneously.

パケット多重・分離装置32の動作機能は、第2図で述
べたように、入力端子37.38および入出力端子39
から入力されたディジタル信号により情報を発生し、パ
ケット回線34は、パケットのヘッダ一部先端符号Sを
検出することによりパケットの始まりが分る。そして、
アドレス符号Bによって。
The operational functions of the packet multiplexing/separating device 32 are as described in FIG.
The packet line 34 generates information from a digital signal inputted from the packet line 34, and detects the leading end code S in the header of the packet to determine the beginning of the packet. and,
By address code B.

そのパケットを送出すべき対地がB側であることを知る
It is known that the destination to which the packet should be sent is the B side.

B側に到着したパケットは、続く信号識別を示す287
の2進数によって信号種別をパケット多重・分離装置3
3で検出し、出力端子40.41から書画用。
The packet arriving at the B side indicates the following signal identification 287
The signal type is determined by the binary number of the packet multiplexing/demultiplexing device 3.
3 and output terminals 40 and 41 for calligraphy and drawing.

人物像用の各ビデオ復号器26.24で復号し、書画用
1人物像用モニタ22.20に同時にモニタ表示する。
The video decoders 26.24 for human images decode the images, and the images are simultaneously displayed on one human image monitor 22.20 for calligraphy and drawings.

また、入出力端子44からの音声信号は、音声用符号・
復号器18で復号し、スピーカ16から音声を前記モニ
タ表示と同時に出力する。これによって、A、B側双方
でテレビ会議が人物像、書画の動きを見ながら経時的に
円滑に行うことができるにこで、パケットは情報が生起
する毎に発生し。
In addition, the audio signal from the input/output terminal 44 is an audio code/
The decoder 18 decodes the signal, and the speaker 16 outputs the audio at the same time as the monitor display. This allows both sides A and B to smoothly conduct a video conference over time while watching the movement of images of people and calligraphy, and a packet is generated every time information is generated.

情報が発生しなければパケットは全く送出されないこと
を既に説明したが、この様子を人物像用ビデオ符号器5
や書画用ビデオ符号器7として、テレビ信号のフレーム
間の相間を利用して冗長度除去を行うフレーム間符号器
を用いた場合について説明する。
It has already been explained that if no information is generated, no packets are sent out at all.
A case will be described in which an interframe encoder that performs redundancy removal using the phase difference between frames of a television signal is used as the document and drawing video encoder 7.

一般に、フレーム間符号器では、被写体の動きが激しい
時発生符号量が大きく、これと反対に、動きがないと送
出すべき符号は殆ど発生しない。
Generally, in an interframe encoder, the amount of code generated is large when the subject moves rapidly, and, on the contrary, when there is no movement, almost no code is generated to be transmitted.

いま、書画用カメラの前に書類を被写体として置くと、
その直後は多くの符号量が発生するが、次第に符号器は
減少し、ついにはOとなる。このため、最初はパケット
が多数送出されるが、時間の経過とともにパケット数は
減少し、ついにはOとなり、そして、再び書画用カメラ
の前の被写体を動かすまではこの状態は続く。
Now, if you place a document as a subject in front of a document camera,
Immediately after that, a large amount of code is generated, but the number of encoders gradually decreases and finally reaches O. Therefore, initially a large number of packets are sent out, but as time passes, the number of packets decreases until it reaches O, and this state continues until the subject in front of the document camera is moved again.

このように、書画用カメラを使って書画信号を送ってい
る間も1人物像用カメラからの入力は情報量に応じて符
号化、パケット化されて送出されており、従来例のよう
に中断されることがない。
In this way, while the document camera is used to send document signals, the input from the portrait camera is encoded and packetized depending on the amount of information, and is sent out without being interrupted as in the conventional case. never be done.

また1人物像と書画を切換えるための切換スイッチや、
これを操作する操作スイッチを必要としない。
There is also a switch to switch between portraits and calligraphy,
No operation switch is required to operate this.

上記実施例では、人物像用カメラ、書画用カメラを用い
る例を示したが、電子黒板装置など他のメディアを加え
ることは可能である。また、人物像用と書画用とに各々
専用のカメラや符号器、復号器、モニタ等を用いて説明
したが、これらは共通化することも可能である。
In the above embodiment, an example is shown in which a portrait camera and a document camera are used, but it is possible to add other media such as an electronic blackboard device. Further, although the explanation has been made using dedicated cameras, encoders, decoders, monitors, etc. for human images and documents, it is also possible to use a common camera, encoder, decoder, monitor, etc.

また、出力表示手段としてモニタを複数個用いる例を示
したが、1個のモニタを用いて、画面を複数のウィンド
ウに分割して複数の画像を同時に表示するマルチウィン
ドウを出力表示手段とすることも可能である。
Furthermore, although we have shown an example of using multiple monitors as an output display means, it is also possible to use a multi-window as an output display means, which divides the screen into multiple windows and displays multiple images simultaneously using one monitor. is also possible.

また、パケットの符号構成において、第2図で(i号識
別信号を2進数2桁としたが、画像通信の内容に応じて
その桁数を増すことも可能である。
Furthermore, in the code structure of the packet, in FIG. 2, the number i identification signal is a two-digit binary number, but the number of digits can be increased depending on the content of the image communication.

また1本発明の画像通信方式は、実施例に示すようにA
、B側の2対地について述べたが、これらを3対地以」
−とすることも可能である。この場合は、パケットの符
号構成において対地数に対応するアドレス情報を用意す
ればよい。
Furthermore, the image communication method of the present invention is as shown in the embodiment.
, I mentioned the 2 bases on side B, but these are the 3 bases.
- is also possible. In this case, address information corresponding to the number of destinations may be prepared in the code structure of the packet.

(発明の効果) 以に説明したように、本発明は、複数の入力手段からの
信号を同時に所要対地へ伝送し、相手側でこれを同時に
出力することができるので、テレビ会議サービスを円滑
かつ経済的に実現できる。
(Effects of the Invention) As explained above, the present invention allows signals from a plurality of input means to be simultaneously transmitted to a required destination and simultaneously outputted on the other party's side. It is economically feasible.

また、従来のように伝送表示すべき複数の画像を切換え
る操作を必要とせずに行えるので、取扱いが容易である
Furthermore, it is easy to handle because it can be performed without requiring the conventional operation of switching between a plurality of images to be transmitted and displayed.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明方式の一実施例を示すシステム構成図、
第2図は本発明方式に用いられるパケットの符号構成を
説明するための一例図、第3図は従来の画像通信方式の
システtS構成図である。 1.2・・・人物像用カメラ、  3,4・・・書画用
カメラ、  5,6・・・人物像用ビデオ符号器、 7
,8・・・書画用ビデオ符号器、13゜14・・・マイ
ク、 15.16・・・スピーカ、 17゜18・・・
音声用符号・復号器、 19.20・・人物像用モニタ
、 21.22・・・書画用モニタ、23、24・・・
人物像用ビデオ復号器、  25.26・・・書画用ビ
デオ復号器、 32.33・・−パケット多重・分離装
置、 34・・・パケット回線、35、36.40.4
1・・・出力端子、 37.38.42゜43・・・入
力端子、 3!]、 44・・・入出力端子。 特許出願人 日本電信電話株式会社 A(買・J 1.2   人ゴ地イ象Plカメラ 3.4  @画目つメラ 5.6.7.8   寺号ぢ 9.20  人物イ桑月モニタ 21.22  書画刑モニタ 2B、24,25.26− fli[号器849・3
FIG. 1 is a system configuration diagram showing an embodiment of the method of the present invention;
FIG. 2 is an example diagram for explaining the code structure of a packet used in the system of the present invention, and FIG. 3 is a diagram showing the system tS configuration of a conventional image communication system. 1.2... Camera for human images, 3, 4... Camera for document images, 5, 6... Video encoder for human images, 7
, 8... Video encoder for drawings, 13° 14... Microphone, 15.16... Speaker, 17° 18...
Audio encoder/decoder, 19.20...Monitor for human images, 21.22...Monitor for drawings, 23, 24...
Video decoder for human images, 25.26...Video decoder for documents, 32.33...-Packet multiplexing/demultiplexing device, 34...Packet line, 35, 36.40.4
1...Output terminal, 37.38.42゜43...Input terminal, 3! ], 44... Input/output terminal. Patent Applicant: Nippon Telegraph and Telephone Corporation A (Buy/J 1.2 Human Go Earth I Elephant Pl Camera 3.4 @Game Tsumera 5.6.7.8 Temple Name Ji 9.20 Human Go Earth Elephant Pl Camera 21 .22 Calligraphy Penalty Monitor 2B, 24, 25.26- fli [No. 849.3

Claims (1)

【特許請求の範囲】[Claims] 複数の情報入力手段と、この情報入力手段に対応する出
力表示手段と、前記情報入力手段からの信号を符号化す
る手段と、この符号化手段から入力された符号化信号の
種別を示す信号、符号化信号の送出先を示す信号、前記
符号化手段の出力信号等を多重化する手段と、前記符号
化信号の種別を示す信号を識別しその信号に対応する復
号化手段に導く手段と、前記符号化信号の送出先を示す
信号を識別し送出先に伝送する手段と、前記符号化手段
の出力を復号化する手段とから構成されたことを特徴と
する画像通信方式。
a plurality of information input means, an output display means corresponding to the information input means, means for encoding a signal from the information input means, and a signal indicating the type of the encoded signal input from the encoding means; means for multiplexing a signal indicating a destination of the encoded signal, an output signal of the encoding means, etc.; means for identifying a signal indicating the type of the encoded signal and guiding the signal to the corresponding decoding means; An image communication system comprising: means for identifying a signal indicating a destination of the encoded signal and transmitting it to the destination; and means for decoding the output of the encoding means.
JP63208225A 1988-08-24 1988-08-24 Picture communicating system Pending JPH0258443A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63208225A JPH0258443A (en) 1988-08-24 1988-08-24 Picture communicating system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63208225A JPH0258443A (en) 1988-08-24 1988-08-24 Picture communicating system

Publications (1)

Publication Number Publication Date
JPH0258443A true JPH0258443A (en) 1990-02-27

Family

ID=16552737

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63208225A Pending JPH0258443A (en) 1988-08-24 1988-08-24 Picture communicating system

Country Status (1)

Country Link
JP (1) JPH0258443A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0670049A (en) * 1991-01-24 1994-03-11 Micom Commun Corp Transmitting and receiving system of auditory information and modulated data
WO1998000952A1 (en) * 1996-07-02 1998-01-08 Sony Corporation Information transmitter and information transmitting method
US5850250A (en) * 1994-07-18 1998-12-15 Bell Atlantic Maryland, Inc. Video distance learning system
WO2001078393A1 (en) * 2000-04-05 2001-10-18 Intel Corporation Videoconference recording
JP2006271811A (en) * 2005-03-30 2006-10-12 Duskin Co Ltd Container and tool for aromatic substance

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6315560A (en) * 1986-07-08 1988-01-22 Toshiba Corp Transmission controller for electronic conference system
JPS6318753A (en) * 1986-07-10 1988-01-26 Toshiba Corp Electronic conference system
JPS6355660B2 (en) * 1981-09-29 1988-11-04 Horiba Ltd
JPH01295546A (en) * 1988-05-23 1989-11-29 Mitsubishi Electric Corp Television conference communication system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6355660B2 (en) * 1981-09-29 1988-11-04 Horiba Ltd
JPS6315560A (en) * 1986-07-08 1988-01-22 Toshiba Corp Transmission controller for electronic conference system
JPS6318753A (en) * 1986-07-10 1988-01-26 Toshiba Corp Electronic conference system
JPH01295546A (en) * 1988-05-23 1989-11-29 Mitsubishi Electric Corp Television conference communication system

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0670049A (en) * 1991-01-24 1994-03-11 Micom Commun Corp Transmitting and receiving system of auditory information and modulated data
JPH11346280A (en) * 1991-01-24 1999-12-14 Micom Commun Corp Transmission and reception system for audible information and modulation data
US5850250A (en) * 1994-07-18 1998-12-15 Bell Atlantic Maryland, Inc. Video distance learning system
WO1998000952A1 (en) * 1996-07-02 1998-01-08 Sony Corporation Information transmitter and information transmitting method
US6353613B1 (en) 1996-07-02 2002-03-05 Sony Corporation Information transmitter device and transmitting method
WO2001078393A1 (en) * 2000-04-05 2001-10-18 Intel Corporation Videoconference recording
US6466248B1 (en) * 2000-04-05 2002-10-15 Dialogic Corporation Videoconference recording
JP2006271811A (en) * 2005-03-30 2006-10-12 Duskin Co Ltd Container and tool for aromatic substance

Similar Documents

Publication Publication Date Title
US5550593A (en) Multiplex communication system using separated and multiplexed data
KR20010080061A (en) High speed video transmission over telephone lines
US8325217B2 (en) Sending video data over a network
JPH0258443A (en) Picture communicating system
US7573497B2 (en) Computer-based multimedia communication system having an external unit
JPH0670040A (en) Display form changing system for multi-position video conference system
JPH0335679A (en) Video telephone set
JP2823571B2 (en) Distributed multipoint teleconferencing equipment
JPH07162824A (en) Communication system and terminal equipment
JPH10322674A (en) Video conference system
JPH08317366A (en) Multi-spot video conference system
JP2769195B2 (en) Multipoint video conference still image display system
JPS62145985A (en) Voice delay time control method
JP3178509B2 (en) Stereo audio teleconferencing equipment
JPH0461489A (en) Video conference system
JPH05244109A (en) Multiplex communication system between video conference systems
JP2661564B2 (en) Remote reception device
JPH0235886A (en) Optimum delay control system
JPH0522720A (en) Picture codec and av meeting terminal
JPS63232589A (en) System for making band in sound-picture transmitting frame variable
JPH06113298A (en) Dynamic image communication equipment
JPH0522719A (en) Av meeting terminal
JPH01258576A (en) Operating method for camera for video conference
Jameson Multimedia in the Teaching Space
JPS62105588A (en) Video conference system between multispots