DE69225034T2 - Einrichtung zur Bildübertragung - Google Patents

Einrichtung zur Bildübertragung

Info

Publication number
DE69225034T2
DE69225034T2 DE69225034T DE69225034T DE69225034T2 DE 69225034 T2 DE69225034 T2 DE 69225034T2 DE 69225034 T DE69225034 T DE 69225034T DE 69225034 T DE69225034 T DE 69225034T DE 69225034 T2 DE69225034 T2 DE 69225034T2
Authority
DE
Germany
Prior art keywords
transmission device
image transmission
image
transmission
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.)
Expired - Lifetime
Application number
DE69225034T
Other languages
English (en)
Other versions
DE69225034D1 (de
Inventor
Mitsuru Yamamoto
Takayuki Kikuchi
Hiroshi Mashimo
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.)
Canon Inc
Original Assignee
Canon Inc
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
Priority claimed from JP20269191A external-priority patent/JPH0549016A/ja
Priority claimed from JP20412991A external-priority patent/JPH05111006A/ja
Priority claimed from JP30003591A external-priority patent/JPH05137126A/ja
Priority claimed from JP30003791A external-priority patent/JP3247409B2/ja
Priority claimed from JP3318831A external-priority patent/JPH05160746A/ja
Priority claimed from JP4162539A external-priority patent/JPH066788A/ja
Application filed by Canon Inc filed Critical Canon Inc
Application granted granted Critical
Publication of DE69225034D1 publication Critical patent/DE69225034D1/de
Publication of DE69225034T2 publication Critical patent/DE69225034T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/434—Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream
    • H04N21/4347—Demultiplexing of several video streams
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T3/00—Geometric image transformations in the plane of the image
    • G06T3/40—Scaling of whole images or parts thereof, e.g. expanding or contracting
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T3/00—Geometric image transformations in the plane of the image
    • G06T3/40—Scaling of whole images or parts thereof, e.g. expanding or contracting
    • G06T3/4092—Image resolution transcoding, e.g. by using client-server architectures
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/90—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using coding techniques not provided for in groups H04N19/10-H04N19/85, e.g. fractals
    • H04N19/98—Adaptive-dynamic-range coding [ADRC]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/21—Server components or server architectures
    • H04N21/218—Source of audio or video content, e.g. local disk arrays
    • H04N21/21805—Source of audio or video content, e.g. local disk arrays enabling multiple viewpoints, e.g. using a plurality of cameras
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/234—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
    • H04N21/2343—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
    • H04N21/234363—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements by altering the spatial resolution, e.g. for clients with a lower screen resolution
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/236—Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream
    • H04N21/2365—Multiplexing of several video streams
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/236—Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream
    • H04N21/2365—Multiplexing of several video streams
    • H04N21/23655—Statistical multiplexing, e.g. by controlling the encoder to alter its bitrate to optimize the bandwidth utilization
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/238—Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidth; Processing of multiplex streams
    • H04N21/2383—Channel coding or modulation of digital bit-stream, e.g. QPSK modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving encoded video stream packets from an IP network
    • H04N21/4382—Demodulation or channel decoding, e.g. QPSK demodulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/443—OS processes, e.g. booting an STB, implementing a Java virtual machine in an STB or power management in an STB
    • H04N21/4438—Window management, e.g. event handling following interaction with the user interface
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/445—Receiver circuitry for the reception of television signals according to analogue transmission standards for displaying additional information
    • H04N5/45—Picture in picture, e.g. displaying simultaneously another television channel in a region of the screen
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/08—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division
    • H04N7/0806—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division the signals being two or more video signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/14—Systems for two-way working
    • H04N7/15—Conference systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/14—Systems for two-way working
    • H04N7/15—Conference systems
    • H04N7/152—Multipoint control units therefor
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/20—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using video object coding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/30—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using hierarchical techniques, e.g. scalability
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/30—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using hierarchical techniques, e.g. scalability
    • H04N19/39—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using hierarchical techniques, e.g. scalability involving multiple description coding [MDC], i.e. with separate layers being structured as independently decodable descriptions of input picture data

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Software Systems (AREA)
  • Databases & Information Systems (AREA)
  • Closed-Circuit Television Systems (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
DE69225034T 1991-08-13 1992-08-11 Einrichtung zur Bildübertragung Expired - Lifetime DE69225034T2 (de)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP20269191A JPH0549016A (ja) 1991-08-13 1991-08-13 動画像伝送装置
JP20412991A JPH05111006A (ja) 1991-08-14 1991-08-14 画像伝送装置
JP30003591A JPH05137126A (ja) 1991-11-15 1991-11-15 マルチメデイア伝送システム
JP30003791A JP3247409B2 (ja) 1991-11-15 1991-11-15 送信端末及び画像データ送信方法
JP3318831A JPH05160746A (ja) 1991-12-03 1991-12-03 符号復号化装置
JP4162539A JPH066788A (ja) 1992-06-22 1992-06-22 動画像伝送装置

Publications (2)

Publication Number Publication Date
DE69225034D1 DE69225034D1 (de) 1998-05-14
DE69225034T2 true DE69225034T2 (de) 1998-08-13

Family

ID=27553261

Family Applications (2)

Application Number Title Priority Date Filing Date
DE69232343T Expired - Lifetime DE69232343D1 (de) 1991-08-13 1992-08-11 Bildübertragungsvorrichtung
DE69225034T Expired - Lifetime DE69225034T2 (de) 1991-08-13 1992-08-11 Einrichtung zur Bildübertragung

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE69232343T Expired - Lifetime DE69232343D1 (de) 1991-08-13 1992-08-11 Bildübertragungsvorrichtung

Country Status (3)

Country Link
US (2) US5541657A (de)
EP (2) EP0823818B1 (de)
DE (2) DE69232343D1 (de)

Families Citing this family (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0589657B1 (de) 1992-09-21 1999-05-12 Canon Kabushiki Kaisha Netzsystem und Terminalgerät
JPH06284392A (ja) * 1993-03-30 1994-10-07 Toshiba Corp 映像信号送受信装置
BE1007490A3 (nl) * 1993-09-10 1995-07-11 Philips Electronics Nv Inrichting voor het overdragen van een pluraliteit van televisie signalen over een transmissie kanaal.
JP3372611B2 (ja) * 1993-10-18 2003-02-04 キヤノン株式会社 映像伝送システム、映像処理装置及び映像処理方法
US5526050A (en) * 1994-03-31 1996-06-11 Cognex Corporation Methods and apparatus for concurrently acquiring video data from multiple video data sources
US5651090A (en) * 1994-05-06 1997-07-22 Nippon Telegraph And Telephone Corporation Coding method and coder for coding input signals of plural channels using vector quantization, and decoding method and decoder therefor
US5926205A (en) * 1994-10-19 1999-07-20 Imedia Corporation Method and apparatus for encoding and formatting data representing a video program to provide multiple overlapping presentations of the video program
US5612742A (en) * 1994-10-19 1997-03-18 Imedia Corporation Method and apparatus for encoding and formatting data representing a video program to provide multiple overlapping presentations of the video program
US5629736A (en) * 1994-11-01 1997-05-13 Lucent Technologies Inc. Coded domain picture composition for multimedia communications systems
JP3953512B2 (ja) 1994-12-23 2007-08-08 テラヨン コミュニケーションズ システムズ， インコーポレイテッド 分散ビデオデータを観察するためのｖｃｒのようなトリック・モード機能を提供するための方法ならびにその装置
US6026176A (en) 1995-07-25 2000-02-15 Cognex Corporation Machine vision methods and articles of manufacture for ball grid array inspection
JP3801242B2 (ja) * 1995-10-31 2006-07-26 株式会社日立製作所 縮小画像表示装置
JP3332776B2 (ja) * 1996-02-02 2002-10-07 キヤノン株式会社 伝送制御方法及びそれを用いるネットワークシステム
US6298149B1 (en) 1996-03-21 2001-10-02 Cognex Corporation Semiconductor device image inspection with contrast enhancement
US6259827B1 (en) 1996-03-21 2001-07-10 Cognex Corporation Machine vision methods for enhancing the contrast between an object and its background using multiple on-axis images
JPH10178627A (ja) * 1996-10-18 1998-06-30 Canon Inc サーバシステム及びサーバシステムにおける信号の配信方法
EP1439704A3 (de) * 1997-03-17 2011-08-10 Panasonic Corporation Vorrichtung für Bewegtbilddatenverarbeitung, -übertragung und -empfang
US6608647B1 (en) 1997-06-24 2003-08-19 Cognex Corporation Methods and apparatus for charge coupled device image acquisition with independent integration and readout
JP3849144B2 (ja) * 1997-12-31 2006-11-22 ソニー株式会社 符号化データ出力装置及び方法並びに符号化データ制御装置及び方法
US6381375B1 (en) 1998-02-20 2002-04-30 Cognex Corporation Methods and apparatus for generating a projection of an image
JP3560804B2 (ja) * 1998-03-11 2004-09-02 富士通株式会社 動画像符号化方法及び装置
JP3937564B2 (ja) 1998-03-24 2007-06-27 三菱電機株式会社 ディジタルビデオ受信装置
US6154489A (en) * 1998-03-30 2000-11-28 Motorola, Inc. Adaptive-rate coded digital image transmission
US6529730B1 (en) * 1998-05-15 2003-03-04 Conexant Systems, Inc System and method for adaptive multi-rate (AMR) vocoder rate adaption
JP3348833B2 (ja) * 1998-07-10 2002-11-20 富士通株式会社 動画像合成装置
US7016539B1 (en) 1998-07-13 2006-03-21 Cognex Corporation Method for fast, robust, multi-dimensional pattern recognition
US6381366B1 (en) 1998-12-18 2002-04-30 Cognex Corporation Machine vision methods and system for boundary point-based comparison of patterns and images
US6687402B1 (en) 1998-12-18 2004-02-03 Cognex Corporation Machine vision methods and systems for boundary feature comparison of patterns and images
DE19914742A1 (de) * 1999-03-31 2000-10-12 Siemens Ag Verfahren zum Übertragen von Daten
GB2351629A (en) * 1999-04-28 2001-01-03 Snell & Wilcox Ltd Video processing apparatus for showing encoder effects
US6684402B1 (en) 1999-12-01 2004-01-27 Cognex Technology And Investment Corporation Control methods and apparatus for coupling multiple image acquisition devices to a digital data processor
US6748104B1 (en) 2000-03-24 2004-06-08 Cognex Corporation Methods and apparatus for machine vision inspection using single and multiple templates or patterns
US6765599B2 (en) * 2000-05-30 2004-07-20 Sanyo Electric Co., Ltd. Image signal transmission apparatus
KR100367597B1 (ko) * 2000-07-14 2003-01-10 엘지전자 주식회사 신호 전송 방법 및 장치
US8199726B2 (en) 2001-05-14 2012-06-12 Interdigital Technology Corporation Channel quality measurements for downlink resource allocation
FR2826823B1 (fr) * 2001-06-27 2003-10-10 Canon Kk Procede et dispositif de traitement d'un signal numerique code
US8081820B2 (en) 2003-07-22 2011-12-20 Cognex Technology And Investment Corporation Method for partitioning a pattern into optimized sub-patterns
JP4549207B2 (ja) * 2005-03-15 2010-09-22 キヤノン株式会社 通信装置及びその制御方法
US8111904B2 (en) 2005-10-07 2012-02-07 Cognex Technology And Investment Corp. Methods and apparatus for practical 3D vision system
US8162584B2 (en) 2006-08-23 2012-04-24 Cognex Corporation Method and apparatus for semiconductor wafer alignment
US9679224B2 (en) 2013-06-28 2017-06-13 Cognex Corporation Semi-supervised method for training multiple pattern recognition and registration tool models
WO2018155670A1 (ja) * 2017-02-27 2018-08-30 パナソニック インテレクチュアル プロパティ コーポレーション オブ アメリカ 画像配信方法、画像表示方法、画像配信装置及び画像表示装置

Family Cites Families (59)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3752911A (en) * 1971-06-18 1973-08-14 Data Plex Systems High resolution television transmission
JPS4826419A (de) 1971-08-11 1973-04-07
JPS5750115B2 (de) 1972-09-04 1982-10-26
JPS4964317A (de) 1972-10-21 1974-06-21
JPS5477512A (en) 1977-12-02 1979-06-21 Hitachi Ltd Picture information system
JPS57143990A (en) 1981-03-02 1982-09-06 Hitachi Ltd Picture answering service system
JPS596688A (ja) 1982-07-05 1984-01-13 Sony Corp Ｃａｔｖシステム
ATE38604T1 (de) * 1984-02-29 1988-11-15 Hertz Inst Heinrich Nachrichtensystem fuer bildkonferenzen.
FR2563403B1 (fr) * 1984-04-20 1986-08-08 Tonna Electronique Procede et dispositif de transmission optique de deux signaux video en particulier par fibre optique
JPS61103382A (ja) 1984-10-26 1986-05-21 Toshiba Corp 映像伝送方式
JPS61194931A (ja) 1985-02-23 1986-08-29 Fujitsu Ltd 伝送制御装置
JP2543030B2 (ja) 1985-11-06 1996-10-16 富士通株式会社 受信側符号化制御による画像信号伝送制御方式
JPS62183288A (ja) 1986-02-07 1987-08-11 Nippon Telegr & Teleph Corp <Ntt> 動画像情報予約提供方式
JPS62183242A (ja) 1986-02-07 1987-08-11 Nippon Telegr & Teleph Corp <Ntt> 動画像情報予約提供方式
JPS62290291A (ja) 1986-06-10 1987-12-17 Nec Corp 画像送信装置
JPS62298288A (ja) 1986-06-18 1987-12-25 Hitachi Ltd ブロ−ドバンドｌａｎシステム
JPS631185A (ja) 1986-06-19 1988-01-06 Matsushita Electric Ind Co Ltd 双方向ｃａｔｖシステム
JPS6315559A (ja) 1986-07-08 1988-01-22 Toshiba Corp 電子会議システム
JPS6390953A (ja) 1986-10-06 1988-04-21 Nippon Telegr & Teleph Corp <Ntt> マルチメデイア通信装置
JPS63181584A (ja) 1987-01-23 1988-07-26 Fujitsu Ltd 画像パケツト転送制御方式
JPS63181583A (ja) 1987-01-23 1988-07-26 Fujitsu Ltd 画像デ−タの転送方式
JPS63206040A (ja) 1987-02-20 1988-08-25 Fujitsu Ltd マルチチヤネルアクセス通信方式
JPS6461187A (en) 1987-09-01 1989-03-08 Mitsubishi Electric Corp Still picture transmitter
JPH01144792A (ja) 1987-11-30 1989-06-07 Nec Home Electron Ltd 画像データの処理方式
JP2984273B2 (ja) 1987-12-21 1999-11-29 キヤノン株式会社 記録方法
GB2214758A (en) 1988-01-22 1989-09-06 Philips Electronic Associated Signal distribution network system
GB2214757A (en) 1988-01-22 1989-09-06 Philips Electronic Associated Signal distribution network
JPH01218191A (ja) 1988-02-25 1989-08-31 Matsushita Electric Ind Co Ltd ネットワーク接続用ゲートウェイ
JP2737140B2 (ja) 1988-02-29 1998-04-08 日本電気株式会社 双方向ｃａｔｖシステムの上りキャリア周波数制御方式
JPH01280977A (ja) * 1988-03-31 1989-11-13 Toshiba Corp テレビジョンシステムの子画面表示方法及びその装置
JPH01286590A (ja) 1988-05-12 1989-11-17 Fujitsu Ltd 画像圧縮切り替え制御方式
JP2615841B2 (ja) * 1988-05-17 1997-06-04 ソニー株式会社 静止画編集装置
JPH0214693A (ja) 1988-06-30 1990-01-18 Yagi Antenna Co Ltd 画像通信装置
EP0354370A1 (de) * 1988-07-28 1990-02-14 Siemens Aktiengesellschaft Videokonferenzsystem
JP3002471B2 (ja) * 1988-08-19 2000-01-24 株式会社日立製作所 番組配信装置
JP2882632B2 (ja) 1988-09-02 1999-04-12 日本電信電話株式会社 画像会議装置
JP2920921B2 (ja) 1988-10-11 1999-07-19 日本電気株式会社 画像信号伝送方法及び装置並びに画像会議システム
JP2551641B2 (ja) 1988-10-24 1996-11-06 日本電信電話株式会社 可変レート画像符号化装置および可変レート画像復号化装置
US4984081A (en) * 1989-01-24 1991-01-08 Matsushita Electric Industrial Co., Ltd. Apparatus for receiving and selecting high-definition television (HDTV) signals and standard television (NTSC) signals
JPH02238788A (ja) 1989-03-13 1990-09-21 Mitsubishi Electric Corp パケツトテレビ会議端末装置
US4935953A (en) * 1989-04-27 1990-06-19 International Business Machines Corporation Cyclic video region transmission for videoconferencing systems
FR2646576B1 (fr) * 1989-04-28 1991-07-05 France Etat Systeme d'emission-reception pour la transmission d'images couleur animees et du son a partir de canaux independants
JPH02295392A (ja) 1989-05-10 1990-12-06 Mitsubishi Electric Corp 画像符号化制御方法
JPH034654A (ja) 1989-06-01 1991-01-10 Oki Electric Ind Co Ltd Ｉｓｄｎテレビ電話機
US5128776A (en) * 1989-06-16 1992-07-07 Harris Corporation Prioritized image transmission system and method
US5426513A (en) * 1989-06-16 1995-06-20 Harris Corporation Prioritized image transmission system and method
JPH0380670A (ja) 1989-08-23 1991-04-05 Matsushita Electric Ind Co Ltd 画像符号化装置
DE69032791T2 (de) * 1989-09-04 1999-05-06 Canon Kk Faksimilegerät
JP2825000B2 (ja) 1990-03-20 1998-11-18 富士通株式会社 Ｃａｔｖ分配制御方式
JPH03270430A (ja) 1990-03-20 1991-12-02 Mitsubishi Electric Corp パケットテレビ会議通信方式
JPH0432347A (ja) 1990-05-29 1992-02-04 Fujitsu Ltd テレビ会議システムにおけるテレビ会議ステーション装置、および、交換機における回線接続制御方法
JPH0454089A (ja) 1990-06-21 1992-02-21 Nec Corp 多地点間テレビ会議方式
US5115309A (en) * 1990-09-10 1992-05-19 At&T Bell Laboratories Method and apparatus for dynamic channel bandwidth allocation among multiple parallel video coders
JPH04177993A (ja) 1990-11-13 1992-06-25 Oki Electric Ind Co Ltd 画像符号化方法及びその画像符号化方法を用いた多地点間テレビ会議システム
US5172413A (en) * 1990-12-20 1992-12-15 Sasktel Secure hierarchial video delivery system and method
US5138447A (en) * 1991-02-11 1992-08-11 General Instrument Corporation Method and apparatus for communicating compressed digital video signals using multiple processors
US5235420A (en) 1991-03-22 1993-08-10 Bell Communications Research, Inc. Multilayer universal video coder
US5239389A (en) * 1991-06-27 1993-08-24 Hewlett-Packard Company Preview print for facsimile transmission
US5686961A (en) * 1992-01-27 1997-11-11 Harris Corporation Automatic video image data reduction and prioritization system and method

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DE69225034D1 (de) 1998-05-14
EP0823818B1 (de) 2002-01-09
EP0527632A2 (de) 1993-02-17
US5541657A (en) 1996-07-30
EP0527632A3 (en) 1993-11-24
EP0527632B1 (de) 1998-04-08
US6498625B1 (en) 2002-12-24
EP0823818A3 (de) 1998-06-10
DE69232343D1 (de) 2002-02-14
EP0823818A2 (de) 1998-02-11

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