DE69228440D1 - Vorrichtung für verschlüsselte Ubertragung von Videosignalen - Google Patents

Vorrichtung für verschlüsselte Ubertragung von Videosignalen

Info

Publication number
DE69228440D1
DE69228440D1 DE69228440T DE69228440T DE69228440D1 DE 69228440 D1 DE69228440 D1 DE 69228440D1 DE 69228440 T DE69228440 T DE 69228440T DE 69228440 T DE69228440 T DE 69228440T DE 69228440 D1 DE69228440 D1 DE 69228440D1
Authority
DE
Germany
Prior art keywords
video signals
encrypted transmission
encrypted
transmission
video
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
DE69228440T
Other languages
English (en)
Inventor
Adrian Robinson
Christopher Clarke
Andrew Bower
Etienne Cochon
David Naccache
Michel Poivet
Albert Dorner
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.)
Vantiva SA
British Broadcasting Corp
Original Assignee
Thomson Multimedia SA
British Broadcasting 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
Priority claimed from GB919120696A external-priority patent/GB9120696D0/en
Application filed by Thomson Multimedia SA, British Broadcasting Corp filed Critical Thomson Multimedia SA
Application granted granted Critical
Publication of DE69228440D1 publication Critical patent/DE69228440D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00Television systems
    • H04N7/16Analogue secrecy systems; Analogue subscription systems
    • H04N7/167Systems rendering the television signal unintelligible and subsequently intelligible
    • H04N7/169Systems operating in the time domain of the television signal
    • H04N7/1696Systems operating in the time domain of the television signal by changing or reversing the order of active picture signal portions
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C67/00Preparation of carboxylic acid esters
    • C07C67/28Preparation of carboxylic acid esters by modifying the hydroxylic moiety of the ester, such modification not being an introduction of an ester group
    • C07C67/29Preparation of carboxylic acid esters by modifying the hydroxylic moiety of the ester, such modification not being an introduction of an ester group by introduction of oxygen-containing functional groups
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G63/00Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/02Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
    • C08G63/12Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds
    • C08G63/16Dicarboxylic acids and dihydroxy compounds
    • C08G63/20Polyesters having been prepared in the presence of compounds having one reactive group or more than two reactive groups
    • C08G63/21Polyesters having been prepared in the presence of compounds having one reactive group or more than two reactive groups in the presence of unsaturated monocarboxylic acids or unsaturated monohydric alcohols or reactive derivatives thereof
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G63/00Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/66Polyesters containing oxygen in the form of ether groups
    • C08G63/668Polyesters containing oxygen in the form of ether groups derived from polycarboxylic acids and polyhydroxy compounds
    • C08G63/676Polyesters containing oxygen in the form of ether groups derived from polycarboxylic acids and polyhydroxy compounds in which at least one of the two components contains aliphatic unsaturation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00Television systems
    • H04N7/16Analogue secrecy systems; Analogue subscription systems
    • H04N7/173Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
    • H04N7/17309Transmission or handling of upstream communications
    • H04N7/17327Transmission or handling of upstream communications with deferred transmission or handling of upstream communications
DE69228440T 1991-09-30 1992-09-29 Vorrichtung für verschlüsselte Ubertragung von Videosignalen Expired - Lifetime DE69228440D1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB919120696A GB9120696D0 (en) 1991-09-30 1991-09-30 Method and apparatus for secure transmission of video signals
GB929210750A GB9210750D0 (en) 1991-09-30 1992-05-20 Method and apparatus for secure transmission of video signals
PCT/GB1992/001785 WO1993007717A1 (en) 1991-09-30 1992-09-29 Method and apparatus for secure transmission of video signals

Publications (1)

Publication Number Publication Date
DE69228440D1 true DE69228440D1 (de) 1999-03-25

Family

ID=26299606

Family Applications (2)

Application Number Title Priority Date Filing Date
DE69228250T Expired - Lifetime DE69228250D1 (de) 1991-09-30 1992-09-29 Verfahren und vorrichtung für sichere übertragung von videosignalen
DE69228440T Expired - Lifetime DE69228440D1 (de) 1991-09-30 1992-09-29 Vorrichtung für verschlüsselte Ubertragung von Videosignalen

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE69228250T Expired - Lifetime DE69228250D1 (de) 1991-09-30 1992-09-29 Verfahren und vorrichtung für sichere übertragung von videosignalen

Country Status (10)

Country Link
US (1) US5555305A (de)
EP (3) EP0606328B1 (de)
JP (3) JPH06511122A (de)
CN (3) CN1074072A (de)
AU (3) AU2657092A (de)
DE (2) DE69228250D1 (de)
MX (2) MX9205588A (de)
MY (1) MY108367A (de)
TR (4) TR26199A (de)
WO (3) WO1993007717A1 (de)

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US7039938B2 (en) 2002-01-02 2006-05-02 Sony Corporation Selective encryption for video on demand
US7376233B2 (en) 2002-01-02 2008-05-20 Sony Corporation Video slice and active region based multiple partial encryption
US7765567B2 (en) 2002-01-02 2010-07-27 Sony Corporation Content replacement by PID mapping
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US7292690B2 (en) 2002-01-02 2007-11-06 Sony Corporation Video scene change detection
US7242773B2 (en) 2002-09-09 2007-07-10 Sony Corporation Multiple partial encryption using retuning
US7823174B2 (en) 2002-01-02 2010-10-26 Sony Corporation Macro-block based content replacement by PID mapping
US7215770B2 (en) 2002-01-02 2007-05-08 Sony Corporation System and method for partially encrypted multimedia stream
US7233669B2 (en) 2002-01-02 2007-06-19 Sony Corporation Selective encryption to enable multiple decryption keys
US6973188B1 (en) 2002-02-25 2005-12-06 Lockheed Martin Corporation Analog scrambler
US7530084B2 (en) 2002-05-28 2009-05-05 Sony Corporation Method and apparatus for synchronizing dynamic graphics
US7239880B2 (en) * 2002-06-12 2007-07-03 Interdigital Technology Corporation Method and apparatus for delivering multimedia multicast services over wireless communication systems
US8818896B2 (en) 2002-09-09 2014-08-26 Sony Corporation Selective encryption with coverage encryption
US8572408B2 (en) 2002-11-05 2013-10-29 Sony Corporation Digital rights management of a digital device
US7724907B2 (en) 2002-11-05 2010-05-25 Sony Corporation Mechanism for protecting the transfer of digital content
US8645988B2 (en) 2002-12-13 2014-02-04 Sony Corporation Content personalization for digital content
US8667525B2 (en) 2002-12-13 2014-03-04 Sony Corporation Targeted advertisement selection from a digital stream
US20040165586A1 (en) * 2003-02-24 2004-08-26 Read Christopher Jensen PID filters based network routing
US7409702B2 (en) 2003-03-20 2008-08-05 Sony Corporation Auxiliary program association table
US7292692B2 (en) 2003-03-25 2007-11-06 Sony Corporation Content scrambling with minimal impact on legacy devices
US7286667B1 (en) 2003-09-15 2007-10-23 Sony Corporation Decryption system
US7236544B2 (en) * 2003-09-24 2007-06-26 Texas Instruments Incorporated Enhanced preamble to enable low power detection
US7346163B2 (en) 2003-10-31 2008-03-18 Sony Corporation Dynamic composition of pre-encrypted video on demand content
US7620180B2 (en) 2003-11-03 2009-11-17 Sony Corporation Preparation of content for multiple conditional access methods in video on demand
US7343013B2 (en) 2003-12-16 2008-03-11 Sony Corporation Composite session-based encryption of video on demand content
US7263187B2 (en) 2003-10-31 2007-08-28 Sony Corporation Batch mode session-based encryption of video on demand content
US7853980B2 (en) 2003-10-31 2010-12-14 Sony Corporation Bi-directional indices for trick mode video-on-demand
US20060013554A1 (en) * 2004-07-01 2006-01-19 Thomas Poslinski Commercial storage and retrieval
US20060013557A1 (en) * 2004-07-01 2006-01-19 Thomas Poslinski Suppression of trick modes in commercial playback
US20060013556A1 (en) * 2004-07-01 2006-01-19 Thomas Poslinski Commercial information and guide
US20060013555A1 (en) * 2004-07-01 2006-01-19 Thomas Poslinski Commercial progress bar
US7895617B2 (en) 2004-12-15 2011-02-22 Sony Corporation Content substitution editor
US8041190B2 (en) 2004-12-15 2011-10-18 Sony Corporation System and method for the creation, synchronization and delivery of alternate content
US8185921B2 (en) 2006-02-28 2012-05-22 Sony Corporation Parental control of displayed content using closed captioning
US7555464B2 (en) 2006-03-01 2009-06-30 Sony Corporation Multiple DRM management
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CN104835434B (zh) * 2015-05-20 2018-03-09 昆山龙腾光电有限公司 信号产生装置
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Also Published As

Publication number Publication date
EP0606328A1 (de) 1994-07-20
JPH06511123A (ja) 1994-12-08
CN1071039A (zh) 1993-04-14
DE69228250D1 (de) 1999-03-04
CN1071797A (zh) 1993-05-05
TR26360A (tr) 1995-03-15
EP0606300A1 (de) 1994-07-20
EP0606346A1 (de) 1994-07-20
MX9205587A (es) 1993-03-01
AU2678392A (en) 1993-05-03
AU2646892A (en) 1993-05-03
CN1074072A (zh) 1993-07-07
WO1993007718A1 (en) 1993-04-15
TR27057A (tr) 1994-10-11
TR26199A (tr) 1995-02-15
EP0606300B1 (de) 1999-02-17
MX9205588A (es) 1994-07-29
TR27727A (tr) 1995-06-22
JPH06511122A (ja) 1994-12-08
US5555305A (en) 1996-09-10
MY108367A (en) 1996-09-30
JPH06511124A (ja) 1994-12-08
AU2657092A (en) 1993-05-03
WO1993007716A1 (en) 1993-04-15
EP0606328B1 (de) 1999-01-20
WO1993007717A1 (en) 1993-04-15

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Legal Events

Date Code Title Description
8332 No legal effect for de