WO2004039075A3 - Desembrouillage adaptatif et progressif de flux audio - Google Patents

Desembrouillage adaptatif et progressif de flux audio Download PDF

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Publication number
WO2004039075A3
WO2004039075A3 PCT/FR2003/050098 FR0350098W WO2004039075A3 WO 2004039075 A3 WO2004039075 A3 WO 2004039075A3 FR 0350098 W FR0350098 W FR 0350098W WO 2004039075 A3 WO2004039075 A3 WO 2004039075A3
Authority
WO
WIPO (PCT)
Prior art keywords
stream
modified
modification
information
sequences
Prior art date
Application number
PCT/FR2003/050098
Other languages
English (en)
Other versions
WO2004039075A2 (fr
Inventor
Daniel Lecomte
Daniela Parayre-Mitzova
Original Assignee
Medialive
Daniel Lecomte
Daniela Parayre-Mitzova
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 filed Critical Medialive
Priority to US10/530,594 priority Critical patent/US20060167682A1/en
Priority to AU2003292363A priority patent/AU2003292363A1/en
Priority to EP03767935A priority patent/EP1554877A2/fr
Publication of WO2004039075A2 publication Critical patent/WO2004039075A2/fr
Publication of WO2004039075A3 publication Critical patent/WO2004039075A3/fr

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]
    • H04N21/20—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
    • H04N21/233—Processing of audio elementary streams
    • 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
    • H04N21/258—Client or end-user data management, e.g. managing client capabilities, user preferences or demographics, processing of multiple end-users preferences to derive collaborative data
    • H04N21/25808—Management of client data
    • 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
    • H04N21/439—Processing of audio elementary streams
    • 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
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
    • H04N21/81—Monomedia components thereof
    • H04N21/8106—Monomedia components thereof involving special audio data, e.g. different tracks for different languages
    • 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 Graphics (AREA)
  • Computer Security & Cryptography (AREA)
  • Reverberation, Karaoke And Other Acoustics (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

La présente invention se rapporte à un procédé de distribution de séquences audio numériques sous forme de flux comportant des séquences de données contenant des blocs audio 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 distribution du flux modifié et une étape de reconstruction à l'aide d'un décodeur, caractérisé en ce que la reconstruction du flux originel 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 distribution du flux modifié, et comportant en outre une étape de transmission à l'équipement destinataire d'une sous-partie de ladite information complémentaire de modification, ladite sous-partie étant déterminée 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/FR2003/050098 2002-10-21 2003-10-21 Desembrouillage adaptatif et progressif de flux audio WO2004039075A2 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US10/530,594 US20060167682A1 (en) 2002-10-21 2003-10-21 Adaptive and progressive audio stream descrambling
AU2003292363A AU2003292363A1 (en) 2002-10-21 2003-10-21 Adaptive and progressive audio stream descrambling
EP03767935A EP1554877A2 (fr) 2002-10-21 2003-10-21 Desembrouillage adaptatif et progressif de flux audio

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0213090A FR2846178B1 (fr) 2002-10-21 2002-10-21 Desembrouillage adaptatif et progressif de flux audio
FR02/13090 2002-10-21

Publications (2)

Publication Number Publication Date
WO2004039075A2 WO2004039075A2 (fr) 2004-05-06
WO2004039075A3 true WO2004039075A3 (fr) 2004-07-08

Family

ID=32050586

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FR2003/050098 WO2004039075A2 (fr) 2002-10-21 2003-10-21 Desembrouillage adaptatif et progressif de flux audio

Country Status (5)

Country Link
US (1) US20060167682A1 (fr)
EP (1) EP1554877A2 (fr)
AU (1) AU2003292363A1 (fr)
FR (1) FR2846178B1 (fr)
WO (1) WO2004039075A2 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2909507B1 (fr) * 2006-12-05 2009-05-22 Medialive Sa Procede et systeme de distribution securisee de donnees audiovisuelles par marquage transactionel
US8613038B2 (en) * 2010-10-22 2013-12-17 Stmicroelectronics International N.V. Methods and apparatus for decoding multiple independent audio streams using a single audio decoder
US8700406B2 (en) * 2011-05-23 2014-04-15 Qualcomm Incorporated Preserving audio data collection privacy in mobile devices
US9406307B2 (en) * 2012-08-19 2016-08-02 The Regents Of The University Of California Method and apparatus for polyphonic audio signal prediction in coding and networking systems
US9830920B2 (en) 2012-08-19 2017-11-28 The Regents Of The University Of California Method and apparatus for polyphonic audio signal prediction in coding and networking systems

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5208857A (en) * 1990-04-25 1993-05-04 Telediffusion De France Method and device for scrambling-unscrambling digital image data
EP0585833A1 (fr) * 1992-09-04 1994-03-09 NOKIA TECHNOLOGY GmbH Système décodeur de signal vidéo
EP0920209A1 (fr) * 1997-11-26 1999-06-02 THOMSON multimedia Procédé et dispositif d'embrouillage et de désembrouillage de données vidéo numériques
EP0944257A1 (fr) * 1998-03-06 1999-09-22 CANAL+ Société Anonyme Terminal multimedia pour plusieurs utilisateurs
EP0949815A2 (fr) * 1998-04-08 1999-10-13 Nec Corporation Méthode et appareil de brouillage d'image
US20020071556A1 (en) * 2000-12-07 2002-06-13 Moskowitz Scott A. System and methods for permitting open access to data objects and for securing data within the data objects
US20020085714A1 (en) * 2000-12-28 2002-07-04 Wataru Inoha Contents recording apparatus, recording medium, contents reproducing apparatus, contents transmission method, transmission medium, and contents reception method

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59111441A (ja) * 1982-12-17 1984-06-27 Sony Corp 音声信号の秘話方式
US5058159A (en) * 1989-06-15 1991-10-15 Macrovision Corporation Method and system for scrambling and descrambling audio information signals
CN1912885B (zh) * 1995-02-13 2010-12-22 英特特拉斯特技术公司 用于安全交易管理和电子权利保护的系统和方法
US5953506A (en) * 1996-12-17 1999-09-14 Adaptive Media Technologies Method and apparatus that provides a scalable media delivery system
US6938270B2 (en) * 1999-04-07 2005-08-30 Microsoft Corporation Communicating scripts in a data service channel of a video signal
US6937730B1 (en) * 2000-02-16 2005-08-30 Intel Corporation Method and system for providing content-specific conditional access to digital content
US7509179B2 (en) * 2000-08-29 2009-03-24 Panasonic Corporation Distribution system
US20020064285A1 (en) * 2000-11-30 2002-05-30 Deleon Roland H. System and method for processing an audio signal prior to encoding
US6807542B2 (en) * 2001-08-14 2004-10-19 International Business Machines Corporation Method and apparatus for selective and quantitative rights management
KR100438857B1 (ko) * 2001-09-26 2004-07-05 엘지전자 주식회사 사용자 선호도 기반 멀티미디어 검색 시스템
US7290057B2 (en) * 2002-08-20 2007-10-30 Microsoft Corporation Media streaming of web content data

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5208857A (en) * 1990-04-25 1993-05-04 Telediffusion De France Method and device for scrambling-unscrambling digital image data
EP0585833A1 (fr) * 1992-09-04 1994-03-09 NOKIA TECHNOLOGY GmbH Système décodeur de signal vidéo
EP0920209A1 (fr) * 1997-11-26 1999-06-02 THOMSON multimedia Procédé et dispositif d'embrouillage et de désembrouillage de données vidéo numériques
EP0944257A1 (fr) * 1998-03-06 1999-09-22 CANAL+ Société Anonyme Terminal multimedia pour plusieurs utilisateurs
EP0949815A2 (fr) * 1998-04-08 1999-10-13 Nec Corporation Méthode et appareil de brouillage d'image
US20020071556A1 (en) * 2000-12-07 2002-06-13 Moskowitz Scott A. System and methods for permitting open access to data objects and for securing data within the data objects
US20020085714A1 (en) * 2000-12-28 2002-07-04 Wataru Inoha Contents recording apparatus, recording medium, contents reproducing apparatus, contents transmission method, transmission medium, and contents reception method

Also Published As

Publication number Publication date
EP1554877A2 (fr) 2005-07-20
WO2004039075A2 (fr) 2004-05-06
US20060167682A1 (en) 2006-07-27
FR2846178A1 (fr) 2004-04-23
AU2003292363A1 (en) 2004-05-13
FR2846178B1 (fr) 2005-03-11

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