FR2860122B1 - Embrouillage, desembrouillage et distribution securisee de sequences audiovisuelles issues de codeurs videos bases dct - Google Patents

Embrouillage, desembrouillage et distribution securisee de sequences audiovisuelles issues de codeurs videos bases dct

Info

Publication number
FR2860122B1
FR2860122B1 FR0350597A FR0350597A FR2860122B1 FR 2860122 B1 FR2860122 B1 FR 2860122B1 FR 0350597 A FR0350597 A FR 0350597A FR 0350597 A FR0350597 A FR 0350597A FR 2860122 B1 FR2860122 B1 FR 2860122B1
Authority
FR
France
Prior art keywords
unlocking
screening
based video
video encoders
dct based
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 - Fee Related
Application number
FR0350597A
Other languages
English (en)
Other versions
FR2860122A1 (fr
Inventor
Daniel Lecomte
Mitzova Daniela Parayre
Jerome Caporossi
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.)
Medialive SA
Original Assignee
Medialive 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
Application filed by Medialive SA filed Critical Medialive SA
Priority to FR0350597A priority Critical patent/FR2860122B1/fr
Priority to EP04816237A priority patent/EP1668907A1/fr
Priority to PCT/FR2004/050462 priority patent/WO2005032135A1/fr
Publication of FR2860122A1 publication Critical patent/FR2860122A1/fr
Application granted granted Critical
Publication of FR2860122B1 publication Critical patent/FR2860122B1/fr
Priority to US11/387,628 priority patent/US20060164544A1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • H04N21/45—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
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/46—Embedding additional information in the video signal during the compression process
    • H04N19/467—Embedding additional information in the video signal during the compression process characterised by the embedded information being invisible, e.g. watermarking
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/48—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using compressed domain processing techniques other than decoding, e.g. modification of transform coefficients, variable length coding [VLC] data or run-length data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • H04N19/61—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding in combination with predictive coding
    • 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
    • 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]
    • H04N21/60—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
    • H04N21/83—Generation or processing of protective or descriptive data associated with content; Content structuring
    • H04N21/835—Generation of protective data, e.g. certificates
    • 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)
  • Databases & Information Systems (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
FR0350597A 2003-09-24 2003-09-24 Embrouillage, desembrouillage et distribution securisee de sequences audiovisuelles issues de codeurs videos bases dct Expired - Fee Related FR2860122B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR0350597A FR2860122B1 (fr) 2003-09-24 2003-09-24 Embrouillage, desembrouillage et distribution securisee de sequences audiovisuelles issues de codeurs videos bases dct
EP04816237A EP1668907A1 (fr) 2003-09-24 2004-09-24 Embrouillage, desembrouillage et distribution securisee de sequences audiovisuelles issues de codeurs videos bases dct
PCT/FR2004/050462 WO2005032135A1 (fr) 2003-09-24 2004-09-24 Embrouillage, desembrouillage et distribution securisee de sequences audiovisuelles issues de codeurs videos bases dct
US11/387,628 US20060164544A1 (en) 2003-09-24 2006-03-23 Apparatus and method for scrambling, descrambling and secured distribution of audiovisual sequences stemming from DCT-based video coders

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0350597A FR2860122B1 (fr) 2003-09-24 2003-09-24 Embrouillage, desembrouillage et distribution securisee de sequences audiovisuelles issues de codeurs videos bases dct

Publications (2)

Publication Number Publication Date
FR2860122A1 FR2860122A1 (fr) 2005-03-25
FR2860122B1 true FR2860122B1 (fr) 2006-03-03

Family

ID=34224476

Family Applications (1)

Application Number Title Priority Date Filing Date
FR0350597A Expired - Fee Related FR2860122B1 (fr) 2003-09-24 2003-09-24 Embrouillage, desembrouillage et distribution securisee de sequences audiovisuelles issues de codeurs videos bases dct

Country Status (4)

Country Link
US (1) US20060164544A1 (fr)
EP (1) EP1668907A1 (fr)
FR (1) FR2860122B1 (fr)
WO (1) WO2005032135A1 (fr)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4370800B2 (ja) * 2003-04-21 2009-11-25 ヤマハ株式会社 音楽コンテンツ利用装置及びプログラム
FR2861240B1 (fr) * 2003-10-15 2006-03-03 Medialive Procede et systeme repartis securises pour la distribution de flux audiovisuels
FR2879878B1 (fr) * 2004-12-22 2007-05-25 Thales Sa Procede de chiffrement selectif compatible pour flux video
US20070265973A1 (en) * 2006-05-15 2007-11-15 The Directv Group, Inc. Methods and apparatus to protect content in home networks
US8775319B2 (en) 2006-05-15 2014-07-08 The Directv Group, Inc. Secure content transfer systems and methods to operate the same
FR2909507B1 (fr) 2006-12-05 2009-05-22 Medialive Sa Procede et systeme de distribution securisee de donnees audiovisuelles par marquage transactionel
KR101403338B1 (ko) 2007-03-23 2014-06-09 삼성전자주식회사 영상의 부호화, 복호화 방법 및 장치
US10269086B2 (en) * 2008-10-09 2019-04-23 Nagra France Sas Method and system for secure sharing of recorded copies of a multicast audiovisual program using scrambling and watermarking techniques
US8165292B2 (en) * 2008-10-14 2012-04-24 Nagra France Method and system for secure distribution of audiovisual data encapsulated according to a plurality of transport protocols
IL199486A0 (en) * 2009-06-22 2011-08-01 Nds Ltd Partial encryption using variable block-size parameters
JP2013519295A (ja) * 2010-02-03 2013-05-23 トムソン ライセンシング 符号化ビデオにおける有効な置換えデータ
ES2349821B1 (es) * 2010-06-03 2011-11-11 Francisco Montserrat Viscarri Procedimiento para transmitir un contenido multimedia mediante una red de datos.
JP5605146B2 (ja) * 2010-10-08 2014-10-15 ソニー株式会社 情報処理装置、および情報処理方法、並びにプログラム
EP2442563A1 (fr) * 2010-10-15 2012-04-18 Thomson Licensing Procédé pour garantir l'insertion de filigrane au moyen de corruption de trains de bits
MY164422A (en) * 2012-12-14 2017-12-15 Mimos Berhad Access restriction to media content using partial encryption and decryption
SG11201609457UA (en) 2014-08-07 2016-12-29 Sonic Ip Inc Systems and methods for protecting elementary bitstreams incorporating independently encoded tiles
CN109391846B (zh) * 2017-08-07 2020-09-01 浙江宇视科技有限公司 一种自适应模式选择的视频加扰方法及装置
CN115842927B (zh) * 2023-02-24 2023-06-06 湖北芯擎科技有限公司 一种视频流的安全显示方法、装置和电子设备

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6377690B1 (en) * 1998-09-14 2002-04-23 Lucent Technologies Inc. Safe transmission of broadband data messages
US7305695B1 (en) * 1999-01-20 2007-12-04 Intel Corporation System for providing video on demand with pause feature
JP2001359070A (ja) * 2000-06-14 2001-12-26 Canon Inc データ処理装置、データ処理方法及びコンピュータ可読記憶媒体
FR2835387B1 (fr) * 2002-01-30 2006-08-11 Lecomte Daniel Dispositif securise pour la diffusion, l'acces, la copie, l'enregistrement, la visualisation a la demande et la gestion des droits des oeuvres audiovisuelles de haute qualite
FR2835386B1 (fr) * 2002-01-31 2004-05-28 Daniel Lecomte Dispositif pour la diffusion securisee, l'acces conditionnel, la visualisation controlee, la copie privee et la gestion des droits de contenus audiovisuels de type mpeg-4

Also Published As

Publication number Publication date
WO2005032135A1 (fr) 2005-04-07
EP1668907A1 (fr) 2006-06-14
FR2860122A1 (fr) 2005-03-25
US20060164544A1 (en) 2006-07-27

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Legal Events

Date Code Title Description
ST Notification of lapse

Effective date: 20110531