ES2096647T3 - Perturbador de television. - Google Patents

Perturbador de television.

Info

Publication number
ES2096647T3
ES2096647T3 ES91905813T ES91905813T ES2096647T3 ES 2096647 T3 ES2096647 T3 ES 2096647T3 ES 91905813 T ES91905813 T ES 91905813T ES 91905813 T ES91905813 T ES 91905813T ES 2096647 T3 ES2096647 T3 ES 2096647T3
Authority
ES
Spain
Prior art keywords
lines
memory
order
writing
reading
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
ES91905813T
Other languages
English (en)
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 ES2096647T3 publication Critical patent/ES2096647T3/es
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
    • H04N7/169—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Television Signal Processing For Recording (AREA)
  • Picture Signal Circuits (AREA)
  • Glass Compositions (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Details Of Television Systems (AREA)
  • Push-Button Switches (AREA)
  • Television Systems (AREA)
  • Semiconductor Lasers (AREA)

Abstract

UN SISTEMA DE ENCRIPCION Y DESCRIPCION DE VIDEO EN QUE LAS LINEAS DE INFORMACION DE VIDEO QUEDAN ALMACENADAS DE FORMA DIGITALIZADA EN UN BLOQUE DE MEMORIA RAM Y NORMALMENTE SE DISPERSAN EN GRUPOS DE 32 LINEAS MEDIANTE LA LECTURA DE INFORMACION PIVOTE CORRESPONDIENTE A 32 LINEAS EN LA MEMORIA EN UN PRIMER ORDEN PREDETERMINADO, QUE PUEDE SER, POR EJEMPLO, UN ORDEN SECUENCIAL, Y LA ESCRITURA DE NUEVA INFORMACION DE LINEAS DE ENTRADA EN LOS LUGARES CORRESPONDIENTES Y LA LECTURA Y ESCRITURA EN LA MEMORIA EN UN SEGUNDO ORDEN DIFERENTE QUE PUEDE SER ALEATORIO O PSEUDO-ALEATORIO Y REPETIR SECUENCIALMENTE ESTAS DOS OPERACIONES DE LECTURA Y ESCRITURA ALTERNATIVAMENTE. ESTO PERMITE QUE EL PROCESO DE DISPERSION DE LINEAS SE LOGRE CON UNA CANTIDAD DE MEMORIA MENOR EN COMPARACION CON LOS METODOS CONOCIDOS.
ES91905813T 1990-03-05 1991-03-05 Perturbador de television. Expired - Lifetime ES2096647T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB909004901A GB9004901D0 (en) 1990-03-05 1990-03-05 Television scrambler

Publications (1)

Publication Number Publication Date
ES2096647T3 true ES2096647T3 (es) 1997-03-16

Family

ID=10672024

Family Applications (1)

Application Number Title Priority Date Filing Date
ES91905813T Expired - Lifetime ES2096647T3 (es) 1990-03-05 1991-03-05 Perturbador de television.

Country Status (13)

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

Families Citing this family (59)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
FI92541C (fi) * 1992-10-30 1994-11-25 Salon Televisiotehdas Oy Videokuvan salausmenetelmä ja -järjestelmä
FI92542C (fi) * 1992-10-30 1994-11-25 Salon Televisiotehdas Oy Menetelmä ja järjestelmä videokuvan salaamiseksi
KR0184313B1 (ko) * 1993-04-09 1999-05-01 모리시타 요이찌 디지털영상신호를 스크램블 및 디스크램블해서 전송하는 스크램블전송장치
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
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
US6473860B1 (en) 1994-04-07 2002-10-29 Hark C. Chan 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
US6289200B1 (en) 1994-07-25 2001-09-11 Hark C. Chan Information distribution system which intermittaly transmits radio frequency signal digital data
US7181758B1 (en) 1994-07-25 2007-02-20 Data Innovation, L.L.C. Information distribution and processing system
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
US7237125B2 (en) 2000-08-28 2007-06-26 Contentguard Holdings, Inc. Method and apparatus for automatically deploying security components in a content distribution system
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
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
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
US6829628B2 (en) * 2001-05-02 2004-12-07 Portalplayer, Inc. Random number generation method and system
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
US8099364B2 (en) 2001-05-31 2012-01-17 Contentguard Holdings, Inc. Digital rights management of content when content is a future live event
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
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
CN1539117A (zh) 2001-06-07 2004-10-20 ��̹�е¿عɹɷ����޹�˾ 在数字权利管理系统中支持多个委托区域的方法和装置
US7774280B2 (en) * 2001-06-07 2010-08-10 Contentguard Holdings, Inc. System and method for managing transfer of rights using shared state variables
EP1393230A4 (en) * 2001-06-07 2004-07-07 Contentguard Holdings Inc METHOD AND METHOD FOR MANAGING TRANSFER OF RIGHTS
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
EP1456763A4 (en) * 2001-11-20 2005-10-12 Contentguard Holdings Inc SYSTEMS AND METHODS FOR CREATING, HANDLING AND PROCESSING RIGHTS EXPRESSIONS AND CONTRACTS USING SEGMENTED TEMPLATES
US7974923B2 (en) * 2001-11-20 2011-07-05 Contentguard Holdings, Inc. Extensible rights expression processing system
US7242766B1 (en) * 2001-11-21 2007-07-10 Silicon Image, Inc. Method and system for encrypting and decrypting data using an external agent
US7805371B2 (en) * 2002-03-14 2010-09-28 Contentguard Holdings, Inc. Rights expression profile system and method
JP2005532610A (ja) * 2002-03-14 2005-10-27 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 変調された信号を使用して使用権を表現するシステム及び方法
US20030229593A1 (en) * 2002-03-14 2003-12-11 Michael Raley Rights expression profile system and method
WO2003094076A1 (en) * 2002-04-29 2003-11-13 Contentguard Holdings, Inc. Rights management system using legality expression language
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
KR101322515B1 (ko) * 2005-09-29 2013-10-25 콘텐트가드 홀딩즈 인코포레이티드 발행 권리를 갖는 선행복사본과 관리복사본 토큰을 이용한디지털 권리 관리 시스템 및 방법
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
FI923959A7 (fi) 1992-09-04
NO923472L (no) 1992-11-05
NO180770B (no) 1997-03-03
DE69123572T2 (de) 1997-04-03
AU7489291A (en) 1991-10-10
EP0518957A1 (en) 1992-12-23
CA2077689C (en) 1995-08-29
US5335275A (en) 1994-08-02
CA2077689A1 (en) 1991-09-06
ATE146325T1 (de) 1996-12-15
GR3022775T3 (en) 1997-06-30
DE69123572D1 (de) 1997-01-23
NO180770C (no) 1997-06-11
FI923959A0 (fi) 1992-09-04
NO923472D0 (no) 1992-09-04
GB9004901D0 (en) 1990-05-02
DK0518957T3 (da) 1997-05-12
AU652931B2 (en) 1994-09-15
WO1991014341A1 (en) 1991-09-19
EP0518957B1 (en) 1996-12-11

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