DE69121444T2 - Überwachungssystem für die Übertragung von Videosignalen - Google Patents

Überwachungssystem für die Übertragung von Videosignalen

Info

Publication number
DE69121444T2
DE69121444T2 DE69121444T DE69121444T DE69121444T2 DE 69121444 T2 DE69121444 T2 DE 69121444T2 DE 69121444 T DE69121444 T DE 69121444T DE 69121444 T DE69121444 T DE 69121444T DE 69121444 T2 DE69121444 T2 DE 69121444T2
Authority
DE
Germany
Prior art keywords
transmission
monitoring system
video signals
video
signals
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
DE69121444T
Other languages
English (en)
Other versions
DE69121444D1 (de
Inventor
Stephen S Walker
Clarence M Sidlo
Melvin J Teare
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.)
Verizon Laboratories Inc
Original Assignee
GTE Laboratories 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 US07/501,684 external-priority patent/US4991208A/en
Priority claimed from US07/501,688 external-priority patent/US5054064A/en
Priority claimed from US07/501,683 external-priority patent/US5046090A/en
Priority claimed from US07/501,682 external-priority patent/US5046092A/en
Application filed by GTE Laboratories Inc filed Critical GTE Laboratories Inc
Publication of DE69121444D1 publication Critical patent/DE69121444D1/de
Application granted granted Critical
Publication of DE69121444T2 publication Critical patent/DE69121444T2/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
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/167—Systems rendering the television signal unintelligible and subsequently intelligible
    • H04N7/1675—Providing digital key or authorisation information for generation or regeneration of the scrambling sequence
    • 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
    • H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
    • H04N21/254—Management at additional data server, e.g. shopping server, rights management server
    • H04N21/2543—Billing, e.g. for subscription services
    • 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
    • H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
    • H04N21/266—Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system, merging a VOD unicast channel into a multicast channel
    • H04N21/26613—Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system, merging a VOD unicast channel into a multicast channel for generating or managing keys in general
    • 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
    • H04N21/432—Content retrieval operation from a local storage medium, e.g. hard-disk
    • H04N21/4325—Content retrieval operation from a local storage medium, e.g. hard-disk by playing back content from the storage medium
    • 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
    • H04N21/433—Content storage operation, e.g. storage operation in response to a pause request, caching operations
    • H04N21/4334—Recording operations
    • 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]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/65—Transmission of management data between client and server
    • H04N21/658—Transmission by the client directed to the server
    • H04N21/6581—Reference data, e.g. a movie identifier for ordering a movie or a product identifier in a home shopping application
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/162—Authorising the user terminal, e.g. by paying; Registering the use of a subscription channel, e.g. billing
    • H04N7/165—Centralised control of user terminal ; Registering at central
DE69121444T 1990-03-29 1991-03-25 Überwachungssystem für die Übertragung von Videosignalen Expired - Lifetime DE69121444T2 (de)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US50162090A 1990-03-29 1990-03-29
US50168590A 1990-03-29 1990-03-29
US07/501,684 US4991208A (en) 1990-03-29 1990-03-29 Video control system having session encryption key
US07/501,688 US5054064A (en) 1990-03-29 1990-03-29 Video control system for recorded programs
US07/501,683 US5046090A (en) 1990-03-29 1990-03-29 Recorded medium for video control system
US07/501,682 US5046092A (en) 1990-03-29 1990-03-29 Video control system for transmitted programs

Publications (2)

Publication Number Publication Date
DE69121444D1 DE69121444D1 (de) 1996-09-26
DE69121444T2 true DE69121444T2 (de) 1997-03-13

Family

ID=27560074

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69121444T Expired - Lifetime DE69121444T2 (de) 1990-03-29 1991-03-25 Überwachungssystem für die Übertragung von Videosignalen

Country Status (4)

Country Link
EP (1) EP0450841B1 (de)
JP (1) JP3147309B2 (de)
CA (1) CA2039123C (de)
DE (1) DE69121444T2 (de)

Families Citing this family (103)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06132916A (ja) * 1992-10-15 1994-05-13 Mitsubishi Corp 受信装置
US5388101A (en) * 1992-10-26 1995-02-07 Eon Corporation Interactive nationwide data service communication system for stationary and mobile battery operated subscriber units
JPH06141004A (ja) * 1992-10-27 1994-05-20 Mitsubishi Corp 課金システム
JP3462229B2 (ja) * 1993-01-12 2003-11-05 株式会社リコス 無線通信における情報の無断利用防止装置
US7509270B1 (en) 1992-12-09 2009-03-24 Discovery Communications, Inc. Electronic Book having electronic commerce features
US8073695B1 (en) 1992-12-09 2011-12-06 Adrea, LLC Electronic book with voice emulation features
US9286294B2 (en) 1992-12-09 2016-03-15 Comcast Ip Holdings I, Llc Video and digital multimedia aggregator content suggestion engine
US7849393B1 (en) 1992-12-09 2010-12-07 Discovery Communications, Inc. Electronic book connection to world watch live
US7168084B1 (en) 1992-12-09 2007-01-23 Sedna Patent Services, Llc Method and apparatus for targeting virtual objects
ATE219615T1 (de) 1992-12-09 2002-07-15 Discovery Communicat Inc Netzwerk-steuerung für kabelfernsehverteilsysteme
US7835989B1 (en) 1992-12-09 2010-11-16 Discovery Communications, Inc. Electronic book alternative delivery systems
CA2110626C (en) * 1992-12-10 2003-10-21 Mihoji Tsumura Billing system for radio communications
DE69429691T2 (de) 1993-06-07 2002-11-21 Hitachi Ltd Aufzeichnungs- und Wiedergabegerät für digitale Information
JPH0774744A (ja) * 1993-08-31 1995-03-17 Univ Waseda 情報提供方式
US8095949B1 (en) 1993-12-02 2012-01-10 Adrea, LLC Electronic book with restricted access features
US7861166B1 (en) 1993-12-02 2010-12-28 Discovery Patent Holding, Llc Resizing document pages to fit available hardware screens
US7865567B1 (en) 1993-12-02 2011-01-04 Discovery Patent Holdings, Llc Virtual on-demand electronic book
US9053640B1 (en) 1993-12-02 2015-06-09 Adrea, LLC Interactive electronic book
MY111825A (en) * 1994-03-28 2001-01-31 Fipa Frohwitter Ip Ag Digital information signal transmitting/receiving method and system
US6744894B1 (en) 1994-04-01 2004-06-01 Mitsubishi Corporation Data management system
US7036019B1 (en) 1994-04-01 2006-04-25 Intarsia Software Llc Method for controlling database copyrights
JPH07271865A (ja) 1994-04-01 1995-10-20 Mitsubishi Corp データベース著作権管理方法
JPH07283809A (ja) * 1994-04-08 1995-10-27 Mitsubishi Corp 暗号鍵システム
JP3617674B2 (ja) * 1994-06-23 2005-02-09 株式会社東芝 情報配布装置
JPH0823315A (ja) * 1994-07-08 1996-01-23 Sony Corp 情報提供システム
JPH0832530A (ja) * 1994-07-15 1996-02-02 Sony Corp データ放送システムおよびデータ受信装置
US7302415B1 (en) 1994-09-30 2007-11-27 Intarsia Llc Data copyright management system
EP0709760B1 (de) 1994-10-27 2006-05-31 Intarsia Software LLC Urheberrechtsdatenverwaltungssystem
EP0715241B1 (de) 1994-10-27 2004-01-14 Mitsubishi Corporation Gerät für Dateiurheberrechte-Verwaltungssystem
US6424715B1 (en) 1994-10-27 2002-07-23 Mitsubishi Corporation Digital content management system and apparatus
US5740246A (en) * 1994-12-13 1998-04-14 Mitsubishi Corporation Crypt key system
SG34287A1 (en) 1994-10-28 1996-12-06 Hitachi Ltd Input-output circuit recording apparatus and reproduction apparatus for digital video signal
JPH08263438A (ja) 1994-11-23 1996-10-11 Xerox Corp ディジタルワークの配給及び使用制御システム並びにディジタルワークへのアクセス制御方法
US6963859B2 (en) 1994-11-23 2005-11-08 Contentguard Holdings, Inc. Content rendering repository
JPH08185657A (ja) * 1994-12-30 1996-07-16 Kenwood Corp 映像装置
JPH08190345A (ja) * 1995-01-11 1996-07-23 Nippon Telegr & Teleph Corp <Ntt> 情報の暗号化および復号化システム
JPH08213962A (ja) * 1995-02-01 1996-08-20 Sony Corp 情報提供方法、情報受信方法、情報提供装置、および情報受信装置
US6009433A (en) * 1995-04-14 1999-12-28 Kabushiki Kaisha Toshiba Information storage and information transmission media with parental control
US5813010A (en) * 1995-04-14 1998-09-22 Kabushiki Kaisha Toshiba Information storage and information transmission media with parental control
DE69623170T2 (de) 1995-04-27 2003-05-15 Hitachi Ltd Verfahren und Vorrichtung zum Empfang und/oder Wiedergabe von digitalen Signalen
US8595502B2 (en) 1995-09-29 2013-11-26 Intarsia Software Llc Data management system
CN1160955C (zh) * 1995-10-09 2004-08-04 松下电器产业株式会社 数据发送装置及数据发送方法
US7801817B2 (en) 1995-10-27 2010-09-21 Makoto Saito Digital content management system and apparatus
TW346571B (en) * 1996-02-06 1998-12-01 Matsushita Electric Ind Co Ltd Data reception apparatus, data transmission apparatus, information processing system, data reception method
DE19608538C1 (de) * 1996-03-06 1997-05-15 Grundig Emv Verkehrsleit- und Informationssystem
JPH10164046A (ja) 1996-11-29 1998-06-19 Canon Inc 送信方法、受信方法、送信装置、受信装置、伝送システム及び媒体
JP3349910B2 (ja) 1997-02-12 2002-11-25 日本電気株式会社 画像データエンコードシステム
US6233684B1 (en) 1997-02-28 2001-05-15 Contenaguard Holdings, Inc. System for controlling the distribution and use of rendered digital works through watermaking
JP4110588B2 (ja) * 1997-03-19 2008-07-02 ソニー株式会社 データ受信装置および受信方法
US6073122A (en) * 1997-08-15 2000-06-06 Lucent Technologies Inc. Cryptographic method and apparatus for restricting access to transmitted programming content using extended headers
US6373948B1 (en) 1997-08-15 2002-04-16 Lucent Technologies Inc. Cryptographic method and apparatus for restricting access to transmitted programming content using program identifiers
US9009773B1 (en) 1998-06-30 2015-04-14 Cox Communications, Inc. Method and apparatus for providing broadcast data services
JP4253875B2 (ja) 1998-09-30 2009-04-15 ソニー株式会社 送信方法および送信装置、受信方法および受信装置、並びに伝送方法および伝送システム
JP4763866B2 (ja) 1998-10-15 2011-08-31 インターシア ソフトウェア エルエルシー ２重再暗号化によりデジタルデータを保護する方法及び装置
US7305695B1 (en) 1999-01-20 2007-12-04 Intel Corporation System for providing video on demand with pause feature
JP2000244428A (ja) * 1999-02-19 2000-09-08 Jujo Denshi Kk 情報伝送システム
US6735313B1 (en) * 1999-05-07 2004-05-11 Lucent Technologies Inc. Cryptographic method and apparatus for restricting access to transmitted programming content using hash functions and program identifiers
JP2001060229A (ja) * 1999-08-23 2001-03-06 Victor Co Of Japan Ltd ディジタル著作物情報管理方法、コンテンツプロバイダ、ユーザ端末、情報記録媒体。
DE60002502T2 (de) * 1999-11-10 2004-03-25 Thomson Licensing S.A., Boulogne Editier und teilungsverfahren für wiedereinschreibbare platten
LU90478B1 (fr) * 1999-11-26 2003-06-26 Luxsat Internat S A Procédé d'accès à une colline de documents multimédias
US7213005B2 (en) 1999-12-09 2007-05-01 International Business Machines Corporation Digital content distribution using web broadcasting services
TW563037B (en) * 2000-01-20 2003-11-21 Ibm Digital content distribution using web broadcasting services
JP2002051018A (ja) * 2000-07-31 2002-02-15 Toshiba Corp データ放送を利用したコンテンツデータ提供方法及びその方法を実行するためのプログラムが記録された記録媒体
JP4634664B2 (ja) * 2000-08-17 2011-02-16 パナソニック株式会社 情報通信システム
JP5068398B2 (ja) 2000-08-17 2012-11-07 Ｎｅｃディスプレイソリューションズ株式会社 受信機及びコンテンツの配信方法
US8225414B2 (en) 2000-08-28 2012-07-17 Contentguard Holdings, Inc. Method and apparatus for identifying installed software and regulating access to content
US7743259B2 (en) 2000-08-28 2010-06-22 Contentguard Holdings, Inc. System and method for digital rights management using a standard rendering engine
US7343324B2 (en) 2000-11-03 2008-03-11 Contentguard Holdings Inc. Method, system, and computer readable medium for automatically publishing content
US6912294B2 (en) 2000-12-29 2005-06-28 Contentguard Holdings, Inc. Multi-stage watermarking process and system
US7774279B2 (en) 2001-05-31 2010-08-10 Contentguard Holdings, Inc. Rights offering and granting
US7028009B2 (en) 2001-01-17 2006-04-11 Contentguardiholdings, Inc. Method and apparatus for distributing enforceable property rights
US8069116B2 (en) 2001-01-17 2011-11-29 Contentguard Holdings, Inc. System and method for supplying and managing usage rights associated with an item repository
JP2002027424A (ja) * 2001-05-28 2002-01-25 Mitsubishi Corp 放送システム，データ放送システム，放送番組２次利用システム及びデータ放送番組２次利用システム
US6895503B2 (en) 2001-05-31 2005-05-17 Contentguard Holdings, Inc. Method and apparatus for hierarchical assignment of rights to documents and documents having such rights
US8275709B2 (en) 2001-05-31 2012-09-25 Contentguard Holdings, Inc. Digital rights management of content when content is a future live event
US8001053B2 (en) 2001-05-31 2011-08-16 Contentguard Holdings, Inc. System and method for rights offering and granting using shared state variables
US7725401B2 (en) 2001-05-31 2010-05-25 Contentguard Holdings, Inc. Method and apparatus for establishing usage rights for digital content to be created in the future
US8275716B2 (en) 2001-05-31 2012-09-25 Contentguard Holdings, Inc. Method and system for subscription digital rights management
US8099364B2 (en) 2001-05-31 2012-01-17 Contentguard Holdings, Inc. Digital rights management of content when content is a future live event
US6876984B2 (en) 2001-05-31 2005-04-05 Contentguard Holdings, Inc. Method and apparatus for establishing usage rights for digital content to be created in the future
US7853531B2 (en) 2001-06-07 2010-12-14 Contentguard Holdings, Inc. Method and apparatus for supporting multiple trust zones in a digital rights management system
US7774280B2 (en) 2001-06-07 2010-08-10 Contentguard Holdings, Inc. System and method for managing transfer of rights using shared state variables
US7793326B2 (en) 2001-08-03 2010-09-07 Comcast Ip Holdings I, Llc Video and digital multimedia aggregator
US7908628B2 (en) 2001-08-03 2011-03-15 Comcast Ip Holdings I, Llc Video and digital multimedia aggregator content coding and formatting
US7974923B2 (en) 2001-11-20 2011-07-05 Contentguard Holdings, Inc. Extensible rights expression processing system
US7840488B2 (en) 2001-11-20 2010-11-23 Contentguard Holdings, Inc. System and method for granting access to an item or permission to use an item based on configurable conditions
AU2002350203A1 (en) 2001-11-20 2003-06-10 Contentguard Holdings, Inc. Systems and methods for creating, manipulating and processing rights and contract expressions using tokenized templates
JP3780924B2 (ja) * 2001-12-03 2006-05-31 株式会社日立製作所 ディジタル情報伝送方法および記録再生方法
JP4740543B2 (ja) 2002-03-14 2011-08-03 コンテントガード ホールディングズ インコーポレイテッド 使用権表現を処理する方法および装置
US7805371B2 (en) 2002-03-14 2010-09-28 Contentguard Holdings, Inc. Rights expression profile system and method
WO2003094076A1 (en) 2002-04-29 2003-11-13 Contentguard Holdings, Inc. Rights management system using legality expression language
JP3954906B2 (ja) * 2002-06-17 2007-08-08 ソニー株式会社 データ配信システムおよび方法、受信装置および方法
US7685642B2 (en) 2003-06-26 2010-03-23 Contentguard Holdings, Inc. System and method for controlling rights expressions by stakeholders of an item
FR2858899B1 (fr) 2003-08-11 2005-12-02 Medialive Procede et systeme repartis securises pour la protection et la distribution de flux audiovisuels
EP1693999A4 (de) * 2003-12-11 2011-09-14 Panasonic Corp Paketsendervorrichtung
US20060047602A1 (en) * 2004-08-31 2006-03-02 Grace James R Buffering scheme for storage of broadcast content
US8660961B2 (en) 2004-11-18 2014-02-25 Contentguard Holdings, Inc. Method, system, and device for license-centric content consumption
US7721318B2 (en) 2005-04-15 2010-05-18 Scientific-Atlanta, Inc. Uplink signaling for global decoder control
US7810131B2 (en) 2005-04-15 2010-10-05 Scientific-Atlanta, Llc Control system with global control stream for controlling a plurality of decoders
US7720767B2 (en) 2005-10-24 2010-05-18 Contentguard Holdings, Inc. Method and system to support dynamic rights and resources sharing
JP4582653B2 (ja) * 2006-05-09 2010-11-17 ソフトバンクモバイル株式会社 コンテンツ・ダウンロード・システム
CN101981872B (zh) * 2008-03-31 2016-04-27 艾科星科技公司 用于经由无线电话网络的话音信道发射数据的系统、方法及设备
JP2013118473A (ja) * 2011-12-02 2013-06-13 Toshiba Corp Ｉｃカード、携帯可能電子装置、及びｉｃカードの制御プログラム

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4528589A (en) * 1977-02-14 1985-07-09 Telease, Inc. Method and system for subscription television billing and access
GB2132860B (en) * 1982-12-21 1987-03-18 British Broadcasting Corp Conditional -access broadcast transmission
CA1219930A (en) * 1983-07-21 1987-03-31 Takashi Kamitake Information transmission system
US4694491A (en) * 1985-03-11 1987-09-15 General Instrument Corp. Cryptographic system using interchangeable key blocks and selectable key fragments

Also Published As

Publication number Publication date
DE69121444D1 (de) 1996-09-26
JP3147309B2 (ja) 2001-03-19
EP0450841B1 (de) 1996-08-21
JPH04223787A (ja) 1992-08-13
EP0450841A2 (de) 1991-10-09
CA2039123A1 (en) 1991-09-30
CA2039123C (en) 2002-01-22
EP0450841A3 (en) 1992-05-27

Similar Documents

Publication Publication Date Title
DE69121444T2 (de) Überwachungssystem für die Übertragung von Videosignalen
DE3483056D1 (de) Fernsehsignaluebertragungssystem.
DE69119894D1 (de) Messgerät für die übertragungszeit von reizleitungssignalen
DE69322785T2 (de) Ubertragungssystem fur digitalsignale mit frequenzmultiplex
DE69032361D1 (de) Video/audiomultiplexübertragungssystem
DE3578298D1 (de) Realzeitverarbeitungssystem fuer videosignale.
DE3481474D1 (de) Verwuerfelte fernsehsignale.
DE58908970D1 (de) Signalübertragungssystem.
DE3751025T2 (de) Rauschverminderungsvorrichtung für Videosignal.
DE3788898T2 (de) Vertikalfilter für Videosignale.
DE69322669T2 (de) Videosignalübertragung
DE69006894T2 (de) Übertragungssystem für digitales Videosignal.
FR2542955B1 (fr) Circuits de compensation de perte de signal video
ATA37188A (de) Fernsehuebertragungssystem
FR2509508B1 (fr) Systeme pour la production de cassettes audio, cassettes video et similaires, personnalisees
DE69224964D1 (de) Verfahren für die Nachrichtenübertragung optischer Signale
BR9004742A (pt) Equipamento de recebimento de sinais video
DE69322143D1 (de) Übertragungssystem für multiplexierte Signale
DE3484115D1 (de) Videosignaluebertragungssystem.
DE69027255T2 (de) Verarbeitungsgerät für Videosignale
DE69123433T2 (de) Aufzeichnungsgerät für Videosignale
DE69027195T2 (de) System für das Senden und Empfangen von Fernsehsignalen
DK164429C (da) Videosignalbehandlingsanlaeg
DE69120633T2 (de) Verarbeitungssystem für Videosignale
DE69126529T2 (de) Überwachungssystem für mekonium

Legal Events

Date Code Title Description
8364 No opposition during term of opposition