DE69228250D1 - Verfahren und vorrichtung für sichere übertragung von videosignalen - Google Patents

Verfahren und vorrichtung für sichere übertragung von videosignalen

Info

Publication number
DE69228250D1
DE69228250D1 DE69228250T DE69228250T DE69228250D1 DE 69228250 D1 DE69228250 D1 DE 69228250D1 DE 69228250 T DE69228250 T DE 69228250T DE 69228250 T DE69228250 T DE 69228250T DE 69228250 D1 DE69228250 D1 DE 69228250D1
Authority
DE
Germany
Prior art keywords
video signals
secure transmission
secure
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
DE69228250T
Other languages
English (en)
Inventor
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.)
Technicolor SA
Original Assignee
Thomson Multimedia SA
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 filed Critical Thomson Multimedia SA
Application granted granted Critical
Publication of DE69228250D1 publication Critical patent/DE69228250D1/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
    • H04N7/169—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
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C67/00—Preparation of carboxylic acid esters
    • C07C67/28—Preparation of carboxylic acid esters by modifying the hydroxylic moiety of the ester, such modification not being an introduction of an ester group
    • C07C67/29—Preparation 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
    • C08G63/12—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds
    • C08G63/16—Dicarboxylic acids and dihydroxy compounds
    • C08G63/20—Polyesters having been prepared in the presence of compounds having one reactive group or more than two reactive groups
    • C08G63/21—Polyesters 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/66—Polyesters containing oxygen in the form of ether groups
    • C08G63/668—Polyesters containing oxygen in the form of ether groups derived from polycarboxylic acids and polyhydroxy compounds
    • C08G63/676—Polyesters 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/173—Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
    • H04N7/17309—Transmission or handling of upstream communications
    • H04N7/17327—Transmission or handling of upstream communications with deferred transmission or handling of upstream communications
DE69228250T 1991-09-30 1992-09-29 Verfahren und vorrichtung für sichere übertragung von videosignalen Expired - Lifetime DE69228250D1 (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/EP1992/002255 WO1993007716A1 (en) 1991-09-30 1992-09-29 Method and apparatus for secure transmission of video signals

Publications (1)

Publication Number Publication Date
DE69228250D1 true DE69228250D1 (de) 1999-03-04

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 After (1)

Application Number Title Priority Date Filing Date
DE69228440T Expired - Lifetime DE69228440D1 (de) 1991-09-30 1992-09-29 Vorrichtung für verschlüsselte Ubertragung von Videosignalen

Country Status (10)

Country Link
US (1) US5555305A (de)
EP (3) EP0606300B1 (de)
JP (3) JPH06511123A (de)
CN (3) CN1074072A (de)
AU (3) AU2646892A (de)
DE (2) DE69228250D1 (de)
MX (2) MX9205587A (de)
MY (1) MY108367A (de)
TR (4) TR26199A (de)
WO (3) WO1993007718A1 (de)

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US7765567B2 (en) 2002-01-02 2010-07-27 Sony Corporation Content replacement by PID mapping
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US7292691B2 (en) 2002-01-02 2007-11-06 Sony Corporation Progressive video refresh slice detection
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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
US7263187B2 (en) 2003-10-31 2007-08-28 Sony Corporation Batch mode session-based encryption of video on demand content
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US7343013B2 (en) 2003-12-16 2008-03-11 Sony Corporation Composite 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
US7346163B2 (en) 2003-10-31 2008-03-18 Sony Corporation Dynamic composition of pre-encrypted video on demand content
US20060013556A1 (en) * 2004-07-01 2006-01-19 Thomas Poslinski Commercial information and guide
US20060013557A1 (en) * 2004-07-01 2006-01-19 Thomas Poslinski Suppression of trick modes in commercial playback
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Also Published As

Publication number Publication date
WO1993007716A1 (en) 1993-04-15
CN1074072A (zh) 1993-07-07
EP0606300A1 (de) 1994-07-20
AU2678392A (en) 1993-05-03
EP0606346A1 (de) 1994-07-20
AU2657092A (en) 1993-05-03
EP0606300B1 (de) 1999-02-17
CN1071797A (zh) 1993-05-05
EP0606328B1 (de) 1999-01-20
CN1071039A (zh) 1993-04-14
TR26360A (tr) 1995-03-15
JPH06511123A (ja) 1994-12-08
AU2646892A (en) 1993-05-03
TR27057A (tr) 1994-10-11
WO1993007717A1 (en) 1993-04-15
JPH06511122A (ja) 1994-12-08
WO1993007718A1 (en) 1993-04-15
MX9205587A (es) 1993-03-01
US5555305A (en) 1996-09-10
JPH06511124A (ja) 1994-12-08
MX9205588A (es) 1994-07-29
TR27727A (tr) 1995-06-22
EP0606328A1 (de) 1994-07-20
TR26199A (tr) 1995-02-15
DE69228440D1 (de) 1999-03-25
MY108367A (en) 1996-09-30

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Legal Events

Date Code Title Description
8332 No legal effect for de