WO2004032478A3 - Desembrouillage adaptatif et progressif de flux video - Google Patents

Desembrouillage adaptatif et progressif de flux video Download PDF

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Publication number
WO2004032478A3
WO2004032478A3 PCT/FR2003/002915 FR0302915W WO2004032478A3 WO 2004032478 A3 WO2004032478 A3 WO 2004032478A3 FR 0302915 W FR0302915 W FR 0302915W WO 2004032478 A3 WO2004032478 A3 WO 2004032478A3
Authority
WO
WIPO (PCT)
Prior art keywords
stream
modification
modified
adaptive
information
Prior art date
Application number
PCT/FR2003/002915
Other languages
English (en)
Other versions
WO2004032478A2 (fr
Inventor
Daniel Lecomte
Daniela Parayre-Mitzova
Sebastien Georges
Original Assignee
Medialive
Daniel Lecomte
Daniela Parayre-Mitzova
Sebastien Georges
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 Medialive, Daniel Lecomte, Daniela Parayre-Mitzova, Sebastien Georges filed Critical Medialive
Priority to ES03775470T priority Critical patent/ES2384046T3/es
Priority to AU2003283496A priority patent/AU2003283496A1/en
Priority to AT03775470T priority patent/ATE555600T1/de
Priority to EP03775470A priority patent/EP1547364B1/fr
Publication of WO2004032478A2 publication Critical patent/WO2004032478A2/fr
Publication of WO2004032478A3 publication Critical patent/WO2004032478A3/fr
Priority to US11/091,217 priority patent/US8695029B2/en
Priority to US14/199,351 priority patent/US9038096B2/en

Links

Classifications

    • 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
    • H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
    • H04N21/4405—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving video stream decryption
    • H04N21/44055—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving video stream decryption by partially decrypting, e.g. decrypting a video stream that has been partially encrypted
    • 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
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/234—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
    • H04N21/2343—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
    • H04N21/234327—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements by decomposing into layers, e.g. base layer and one or more enhancement layers
    • 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
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/234—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
    • H04N21/2347—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving video stream encryption
    • H04N21/23476—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving video stream encryption by partially encrypting, e.g. encrypting the ending portion of a movie
    • 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
    • H04N21/2541—Rights Management
    • 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
    • H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
    • H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
    • H04N21/440227—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display by decomposing into layers, e.g. base layer and one or more enhancement layers
    • 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
    • H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
    • H04N21/462—Content or additional data management, e.g. creating a master electronic program guide from data received from the Internet and a Head-end, controlling the complexity of a video stream by scaling the resolution or bit-rate based on the client capabilities
    • H04N21/4622—Retrieving content or additional data from different sources, e.g. from a broadcast channel and the Internet
    • 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
    • H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
    • H04N21/462—Content or additional data management, e.g. creating a master electronic program guide from data received from the Internet and a Head-end, controlling the complexity of a video stream by scaling the resolution or bit-rate based on the client capabilities
    • H04N21/4627—Rights management associated to the content
    • 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 
    • H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
    • H04N21/631—Multimode Transmission, e.g. transmitting basic layers and enhancement layers of the content over different transmission paths or transmitting with different error corrections, different keys or with different transmission protocols
    • 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)
  • Databases & Information Systems (AREA)
  • Computer Security & Cryptography (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Television Systems (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

La présente invention se rapporte à un procédé de distribution de séquences vidéos numériques sous forme de flux comportant des séquences de données contenant des images numériques, le procédé comportant une étape de modification du flux originel par modification d'une partie au moins desdites séquences de données, la modification produisant un flux modifié au même format nominal que le flux originel, le procédé comportant une étape de transmission du flux modifié et une étape de reconstruction à l'aide d'un décodeur, caractérisé en ce que la reconstruction est adaptative et progressive en fonction d'informations provenant d'un profil numérique du destinataire. Selon un mode de réalisation particulier, ladite modification produit un flux principal modifié et une information complémentaire permettant la reconstruction du flux originel par un décodeur, le procédé comportant une étape de transmission du flux modifié, et comportant en outre une étape de transmission à l'équipement destinataire d'un sous-ensemble de ladite information complémentaire de modification, ledit sous-ensemble étant déterminé en fonction d'informations provenant d'un profil numérique du destinataire. La présente invention se rapporte également à un système pour la mise en oeuvre du procédé.
PCT/FR2003/002915 2002-10-03 2003-10-03 Desembrouillage adaptatif et progressif de flux video WO2004032478A2 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
ES03775470T ES2384046T3 (es) 2002-10-03 2003-10-03 Descodificación adaptativa y progresiva de flujos de video
AU2003283496A AU2003283496A1 (en) 2002-10-03 2003-10-03 Adaptive and progressive video stream scrambling
AT03775470T ATE555600T1 (de) 2002-10-03 2003-10-03 Adaptive und progressive entschlüsselung eines videostroms
EP03775470A EP1547364B1 (fr) 2002-10-03 2003-10-03 Desembrouillage adaptatif et progressif de flux video
US11/091,217 US8695029B2 (en) 2002-10-03 2005-03-28 System and method of adaptive and progressive descrambling of streaming video
US14/199,351 US9038096B2 (en) 2002-10-03 2014-03-06 System and method of adaptive and progressive descrambling of digital image content

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR02/12271 2002-10-03
FR0212271A FR2845553B1 (fr) 2002-10-03 2002-10-03 Desembrouillage adaptatif et progressif de flux video

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US11/091,217 Continuation US8695029B2 (en) 2002-10-03 2005-03-28 System and method of adaptive and progressive descrambling of streaming video

Publications (2)

Publication Number Publication Date
WO2004032478A2 WO2004032478A2 (fr) 2004-04-15
WO2004032478A3 true WO2004032478A3 (fr) 2004-06-17

Family

ID=32011374

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FR2003/002915 WO2004032478A2 (fr) 2002-10-03 2003-10-03 Desembrouillage adaptatif et progressif de flux video

Country Status (6)

Country Link
EP (1) EP1547364B1 (fr)
AT (1) ATE555600T1 (fr)
AU (1) AU2003283496A1 (fr)
ES (1) ES2384046T3 (fr)
FR (1) FR2845553B1 (fr)
WO (1) WO2004032478A2 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2850826B1 (fr) 2003-02-04 2005-04-01 Medialive Procede et dispositif de protection pour la diffusion securisee d'oeuvres audiovisuelles
JP4722042B2 (ja) * 2004-04-20 2011-07-13 パナソニック株式会社 記録再生装置、記録再生制御方法、記録再生制御プログラム、および半導体装置
FR2898451B1 (fr) 2006-03-13 2008-05-09 Medialive Procede et equipement de distribution de contenus audiovisuels numeriques securises par des solutions interoperables

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1033880A2 (fr) * 1999-03-01 2000-09-06 Sharp Kabushiki Kaisha Embrouillage d'images numériques pour systèmes de codage d'images
US20020018565A1 (en) * 2000-07-13 2002-02-14 Maximilian Luttrell Configurable encryption for access control of digital content

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2661585B1 (fr) * 1990-04-25 1992-08-07 Telediffusion Fse Procede et dispositif d'embrouillage-desembrouillage de donnees d'images numeriques.
FI94008C (fi) * 1992-09-04 1995-06-26 Salon Televisiotehdas Oy Videosignaalin dekooderijärjestelmä
US7177429B2 (en) * 2000-12-07 2007-02-13 Blue Spike, Inc. System and methods for permitting open access to data objects and for securing data within the data objects
JPH10145773A (ja) * 1996-11-14 1998-05-29 Toshiba Corp 動画像データの暗号化方法およびその方法が適用されるコンピュータシステム並びに動画像データ符号化／復号化装置
FR2771581B1 (fr) * 1997-11-26 1999-12-17 Thomson Multimedia Sa Procede d'embrouillage et procede de desembrouillage de donnees video numeriques et dispositifs mettant en oeuvre les procedes
EP0944257A1 (fr) * 1998-03-06 1999-09-22 CANAL+ Société Anonyme Terminal multimedia pour plusieurs utilisateurs
JPH11298878A (ja) * 1998-04-08 1999-10-29 Nec Corp 画像スクランブル方法およびそれを実施する装置
CN1165049C (zh) * 2000-12-28 2004-09-01 日本胜利株式会社 内容记录装置、重放装置、传送方法及接收方法

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1033880A2 (fr) * 1999-03-01 2000-09-06 Sharp Kabushiki Kaisha Embrouillage d'images numériques pour systèmes de codage d'images
US20020018565A1 (en) * 2000-07-13 2002-02-14 Maximilian Luttrell Configurable encryption for access control of digital content

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
KUNKELMANN T ET AL: "VIDEO ENCRYPTION BASED ON DATA PARTITIONING AND SCALABLE CODING - A COMPARISON", INTERACTIVE DISTRIBUTED MULTIMEDIA SYSTEMS AND TELECOMMUNICATION SERVICES, XX, XX, 8 September 1998 (1998-09-08), pages 95 - 106, XP000997705 *

Also Published As

Publication number Publication date
ATE555600T1 (de) 2012-05-15
AU2003283496A1 (en) 2004-04-23
AU2003283496A8 (en) 2004-04-23
WO2004032478A2 (fr) 2004-04-15
FR2845553A1 (fr) 2004-04-09
EP1547364B1 (fr) 2012-04-25
ES2384046T3 (es) 2012-06-28
FR2845553B1 (fr) 2009-10-23
EP1547364A2 (fr) 2005-06-29

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