DE69123572T2 - Fernsehverschlüsselungsgerät - Google Patents

Fernsehverschlüsselungsgerät

Info

Publication number
DE69123572T2
DE69123572T2 DE69123572T DE69123572T DE69123572T2 DE 69123572 T2 DE69123572 T2 DE 69123572T2 DE 69123572 T DE69123572 T DE 69123572T DE 69123572 T DE69123572 T DE 69123572T DE 69123572 T2 DE69123572 T2 DE 69123572T2
Authority
DE
Germany
Prior art keywords
pct
memory
lines
date sep
sec
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 - Fee Related
Application number
DE69123572T
Other languages
English (en)
Other versions
DE69123572D1 (de
Inventor
David J Millar
Stephen J Greenhalgh
Richard P Gregory
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.)
DCE TECHNOLOGIES Ltd
Original Assignee
DCE TECHNOLOGIES Ltd
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 DCE TECHNOLOGIES Ltd filed Critical DCE TECHNOLOGIES Ltd
Application granted granted Critical
Publication of DE69123572D1 publication Critical patent/DE69123572D1/de
Publication of DE69123572T2 publication Critical patent/DE69123572T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H04N7/169—Systems operating in the time domain of the television signal
    • H04N7/1696—Systems operating in the time domain of the television signal by changing or reversing the order of active picture signal portions
    • 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
DE69123572T 1990-03-05 1991-03-05 Fernsehverschlüsselungsgerät Expired - Fee Related DE69123572T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB909004901A GB9004901D0 (en) 1990-03-05 1990-03-05 Television scrambler
PCT/GB1991/000343 WO1991014341A1 (en) 1990-03-05 1991-03-05 Television scrambler

Publications (2)

Publication Number Publication Date
DE69123572D1 DE69123572D1 (de) 1997-01-23
DE69123572T2 true DE69123572T2 (de) 1997-04-03

Family

ID=10672024

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69123572T Expired - Fee Related DE69123572T2 (de) 1990-03-05 1991-03-05 Fernsehverschlüsselungsgerät

Country Status (13)

Country Link
US (1) US5335275A (de)
EP (1) EP0518957B1 (de)
AT (1) ATE146325T1 (de)
AU (1) AU652931B2 (de)
CA (1) CA2077689C (de)
DE (1) DE69123572T2 (de)
DK (1) DK0518957T3 (de)
ES (1) ES2096647T3 (de)
FI (1) FI923959A0 (de)
GB (1) GB9004901D0 (de)
GR (1) GR3022775T3 (de)
NO (1) NO180770C (de)
WO (1) WO1991014341A1 (de)

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MY108367A (en) * 1991-09-30 1996-09-30 Thomson Consumer Electronics S A Method and apparatus for secure transmisson of video signals.
JPH06133269A (ja) * 1992-09-02 1994-05-13 Pioneer Electron Corp 映像信号記録及び再生装置
FI92542C (fi) * 1992-10-30 1994-11-25 Salon Televisiotehdas Oy Menetelmä ja järjestelmä videokuvan salaamiseksi
FI92541C (fi) * 1992-10-30 1994-11-25 Salon Televisiotehdas Oy Videokuvan salausmenetelmä ja -järjestelmä
EP0619677A3 (de) * 1993-04-09 1995-03-08 Matsushita Electric Ind Co Ltd System zur Verschlüsselung eines digitalen Videosignals.
FR2716597B1 (fr) * 1994-02-21 1996-06-14 Visiorep Sarl Système de cryptage et contrôle d'accés pour abonnés à des services de télévision et vidéo multiniveaux.
US6188869B1 (en) 1994-04-07 2001-02-13 Hark C. Chan Information distribution and processing system
US6473860B1 (en) 1994-04-07 2002-10-29 Hark C. Chan Information distribution and processing system
US7991347B1 (en) 1994-04-07 2011-08-02 Data Innovation Llc System and method for accessing set of digital data at a remote site
US6021307A (en) * 1994-04-07 2000-02-01 Chan; Hark C. Information distribution and processing system
FR2718915B1 (fr) * 1994-04-19 1996-05-15 Thomson Csf Procédé et dispositif de calage pour traitement de signaux vidéo à l'émission.
US6314574B1 (en) 1994-06-08 2001-11-06 Hark Chan Information distribution system
US7181758B1 (en) 1994-07-25 2007-02-20 Data Innovation, L.L.C. Information distribution and processing system
US6289200B1 (en) 1994-07-25 2001-09-11 Hark C. Chan Information distribution system which intermittaly transmits radio frequency signal digital data
US6963859B2 (en) 1994-11-23 2005-11-08 Contentguard Holdings, Inc. Content rendering repository
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
KR100411519B1 (ko) * 1996-11-06 2004-03-19 엘지이노텍 주식회사 오프셋 조정 방법 및 그 장치
US6233684B1 (en) 1997-02-28 2001-05-15 Contenaguard Holdings, Inc. System for controlling the distribution and use of rendered digital works through watermaking
US6535687B1 (en) 1999-07-23 2003-03-18 Sarnoff Corporation Method and system for deterring electronic video piracy through image rearrangement
US7743259B2 (en) * 2000-08-28 2010-06-22 Contentguard Holdings, Inc. System and method for digital rights management using a standard rendering engine
US7603319B2 (en) 2000-08-28 2009-10-13 Contentguard Holdings, Inc. Method and apparatus for preserving customer identity in on-line transactions
US7343324B2 (en) 2000-11-03 2008-03-11 Contentguard Holdings Inc. Method, system, and computer readable medium for automatically publishing content
FR2818075B1 (fr) * 2000-12-13 2003-02-07 Telediffusion De France Tdf Procede de diffusion de signaux d'image electronique en trame embrouillee
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
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
US6754642B2 (en) * 2001-05-31 2004-06-22 Contentguard Holdings, Inc. Method and apparatus for dynamically assigning usage rights to digital works
US7028009B2 (en) * 2001-01-17 2006-04-11 Contentguardiholdings, Inc. Method and apparatus for distributing enforceable property rights
US20040039704A1 (en) * 2001-01-17 2004-02-26 Contentguard Holdings, Inc. System and method for supplying and managing usage rights of users and suppliers of items
US6829628B2 (en) * 2001-05-02 2004-12-07 Portalplayer, Inc. Random number generation method and system
US8275709B2 (en) 2001-05-31 2012-09-25 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
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
US8275716B2 (en) 2001-05-31 2012-09-25 Contentguard Holdings, Inc. Method and system for subscription digital rights management
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
US8099364B2 (en) 2001-05-31 2012-01-17 Contentguard Holdings, Inc. Digital rights management of content when content is a future live event
JP2004530222A (ja) 2001-06-07 2004-09-30 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 ディジタルライツ・マネジメント・システムで多数の信頼ゾーンをサポートする方法および装置
WO2003007213A1 (en) * 2001-06-07 2003-01-23 Contentguard Holdings, Inc. Method and apparatus managing the transfer of rights
US7774280B2 (en) * 2001-06-07 2010-08-10 Contentguard Holdings, Inc. System and method for managing transfer of rights using shared state variables
EP1485833A4 (de) * 2001-11-20 2005-10-12 Contentguard Holdings Inc Erweiterbares rechtsausdruck-verarbeitungssystem
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
US7242766B1 (en) * 2001-11-21 2007-07-10 Silicon Image, Inc. Method and system for encrypting and decrypting data using an external agent
US20030229593A1 (en) * 2002-03-14 2003-12-11 Michael Raley Rights expression profile system and method
US7805371B2 (en) * 2002-03-14 2010-09-28 Contentguard Holdings, Inc. Rights expression profile system and method
AU2003220269A1 (en) * 2002-03-14 2003-09-29 Contentguard Holdings, Inc. Method and apparatus for processing usage rights expressions
US8543511B2 (en) * 2002-04-29 2013-09-24 Contentguard Holdings, Inc. System and method for specifying and processing legality expressions
US7685642B2 (en) * 2003-06-26 2010-03-23 Contentguard Holdings, Inc. System and method for controlling rights expressions by stakeholders of an item
US20050097593A1 (en) * 2003-11-05 2005-05-05 Michael Raley System, method and device for selected content distribution
US20060107326A1 (en) * 2004-11-12 2006-05-18 Demartini Thomas Method, system, and device for verifying authorized issuance of a rights expression
US8660961B2 (en) 2004-11-18 2014-02-25 Contentguard Holdings, Inc. Method, system, and device for license-centric content consumption
US20060106726A1 (en) * 2004-11-18 2006-05-18 Contentguard Holdings, Inc. Method, system, and device for license-centric content consumption
US20060112015A1 (en) * 2004-11-24 2006-05-25 Contentguard Holdings, Inc. Method, system, and device for handling creation of derivative works and for adapting rights to derivative works
US20060248573A1 (en) * 2005-04-28 2006-11-02 Content Guard Holdings, Inc. System and method for developing and using trusted policy based on a social model
WO2007041170A2 (en) * 2005-09-29 2007-04-12 Contentguard Holdings, Inc. System for digital rights management using advanced copy with issue rights and managed copy tokens
US7720767B2 (en) * 2005-10-24 2010-05-18 Contentguard Holdings, Inc. Method and system to support dynamic rights and resources sharing
FR2928796B1 (fr) * 2008-03-14 2015-03-06 Viaccess Sa Procede de securisation de messages transmis par un terminal emetteur a un terminal recepteur distant.
US9804826B2 (en) 2014-12-05 2017-10-31 Nvidia Corporation Parallelization of random number generators

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1590379A (en) * 1976-08-12 1981-06-03 Wests Pyro Ltd Process for treating drilling cuttings and mud
GB1590579A (en) * 1977-12-16 1981-06-03 Micro Consultants Ltd Information scrambler system
US4275265A (en) * 1978-10-02 1981-06-23 Wisconsin Alumni Research Foundation Complete substitution permutation enciphering and deciphering circuit
US4563702A (en) * 1983-05-27 1986-01-07 M/A-Com Linkabit, Inc. Video signal scrambling and descrambling systems
FR2561478B1 (fr) * 1984-03-16 1987-06-26 Labo Electronique Physique Dispositif de dechiffrement et de decodage d'images de television codees selon le standard mac et brouillees par application aux signaux video de permutations circulaires
US4663659A (en) * 1985-10-31 1987-05-05 Rca Corporation Video signal scrambling system employing full line reversal and double burst coding
IL83549A (en) * 1987-08-16 1992-08-18 Yossi Matias Video scrambling apparatus and method based on space filling curves
US4916736A (en) * 1988-06-07 1990-04-10 Macrovision Corporation Method and apparatus for encrypting and decrypting time domain signals

Also Published As

Publication number Publication date
WO1991014341A1 (en) 1991-09-19
NO180770C (no) 1997-06-11
NO923472L (no) 1992-11-05
DK0518957T3 (da) 1997-05-12
ATE146325T1 (de) 1996-12-15
GB9004901D0 (en) 1990-05-02
AU7489291A (en) 1991-10-10
NO180770B (no) 1997-03-03
FI923959A (fi) 1992-09-04
ES2096647T3 (es) 1997-03-16
EP0518957A1 (de) 1992-12-23
CA2077689A1 (en) 1991-09-06
US5335275A (en) 1994-08-02
DE69123572D1 (de) 1997-01-23
EP0518957B1 (de) 1996-12-11
NO923472D0 (no) 1992-09-04
GR3022775T3 (en) 1997-06-30
AU652931B2 (en) 1994-09-15
CA2077689C (en) 1995-08-29
FI923959A0 (fi) 1992-09-04

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee