DE602004015946D1 - Erzeugung verschlüsselter videoinformationen - Google Patents

Erzeugung verschlüsselter videoinformationen

Info

Publication number
DE602004015946D1
DE602004015946D1 DE602004015946T DE602004015946T DE602004015946D1 DE 602004015946 D1 DE602004015946 D1 DE 602004015946D1 DE 602004015946 T DE602004015946 T DE 602004015946T DE 602004015946 T DE602004015946 T DE 602004015946T DE 602004015946 D1 DE602004015946 D1 DE 602004015946D1
Authority
DE
Germany
Prior art keywords
stream
video information
generation
control words
encrypted 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
DE602004015946T
Other languages
German (de)
English (en)
Inventor
Sjoerd Zwart
Pieter-Jelle Gerbrandts
Tom Kan
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.)
Pendragon Wireless LLC
Original Assignee
Koninklijke Philips Electronics NV
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 Koninklijke Philips Electronics NV filed Critical Koninklijke Philips Electronics NV
Publication of DE602004015946D1 publication Critical patent/DE602004015946D1/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
    • 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]
    • H04N21/40—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
    • H04N21/433—Content storage operation, e.g. storage operation in response to a pause request, caching operations
    • H04N21/4334—Recording operations
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G11B20/0021—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G11B20/00731—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a digital rights management system for enforcing a usage restriction
    • G11B20/0084—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a digital rights management system for enforcing a usage restriction wherein the usage restriction can be expressed as a specific time or date
    • 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
    • H04N21/266—Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system, merging a VOD unicast channel into a multicast channel
    • H04N21/26606—Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system, merging a VOD unicast channel into a multicast channel for generating or managing entitlement messages, e.g. Entitlement Control Message [ECM] or Entitlement Management Message [EMM]
    • 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
    • H04N21/440281—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 altering the temporal resolution, e.g. by frame skipping
    • 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
    • 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
    • H04N21/4623—Processing of entitlement messages, e.g. ECM [Entitlement Control Message] or EMM [Entitlement Management Message]
    • 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 
    • H04N21/65—Transmission of management data between client and server
    • H04N21/658—Transmission by the client directed to the server
    • H04N21/6587—Control parameters, e.g. trick play commands, viewpoint selection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/78—Television signal recording using magnetic recording
    • H04N5/782—Television signal recording using magnetic recording on tape
    • H04N5/783—Adaptations for reproducing at a rate different from the recording rate
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/91—Television signal processing therefor
    • H04N5/913—Television signal processing therefor for scrambling ; for copy protection
    • H04N2005/91357—Television signal processing therefor for scrambling ; for copy protection by modifying the video signal
    • H04N2005/91364—Television signal processing therefor for scrambling ; for copy protection by modifying the video signal the video signal being scrambled

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computer Security & Cryptography (AREA)
  • Databases & Information Systems (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Storage Device Security (AREA)
DE602004015946T 2003-02-10 2004-01-20 Erzeugung verschlüsselter videoinformationen Expired - Lifetime DE602004015946D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP03100264 2003-02-10
PCT/IB2004/050039 WO2004071091A1 (en) 2003-02-10 2004-01-20 Generation of encrypted video information

Publications (1)

Publication Number Publication Date
DE602004015946D1 true DE602004015946D1 (de) 2008-10-02

Family

ID=32842824

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602004015946T Expired - Lifetime DE602004015946D1 (de) 2003-02-10 2004-01-20 Erzeugung verschlüsselter videoinformationen

Country Status (8)

Country Link
US (1) US7681227B2 (enExample)
EP (1) EP1602235B1 (enExample)
JP (1) JP2006518959A (enExample)
KR (1) KR101020523B1 (enExample)
CN (1) CN1748423A (enExample)
AT (1) ATE406046T1 (enExample)
DE (1) DE602004015946D1 (enExample)
WO (1) WO2004071091A1 (enExample)

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US6766376B2 (en) 2000-09-12 2004-07-20 Sn Acquisition, L.L.C Streaming media buffering system
US20080212774A1 (en) * 2005-04-26 2008-09-04 Koninklijke Philips Electronics, N.V. Device for and a Method of Processing an Encrypted Data Stream in a Cryptographic System
CN101167357B (zh) * 2005-04-26 2011-09-07 皇家飞利浦电子股份有限公司 用于处理具有分组序列和与分组有关的定时信息的数据流的设备和方法
EP1742473A1 (fr) * 2005-07-06 2007-01-10 Nagra France Sarl Méthode de transmission d'un flux de données numériques et de messages de contrôle associés audit flux à destination d'équipements mobiles
EP1742475A1 (fr) 2005-07-07 2007-01-10 Nagravision S.A. Méthode de contrôle d'accès à des données chiffrées
EP1742474A1 (fr) * 2005-07-07 2007-01-10 Nagracard S.A. Méthode et dispositif de contrôle d'accès à des données chiffrées
US20070019925A1 (en) * 2005-07-21 2007-01-25 Macinnis Alexander Systems, methods, and apparatus for trick mode
DE102005057568B4 (de) * 2005-12-02 2021-06-17 Robert Bosch Gmbh Sendeeinrichtung und Empfangseinrichtung
US9338405B2 (en) 2006-05-04 2016-05-10 Cisco Technology, Inc. Scrambled digital data item
EP1863285A1 (fr) 2006-05-29 2007-12-05 Nagra France Sas Procédé de traitement de messages de contrôle d'accès
US20080037782A1 (en) * 2006-08-11 2008-02-14 Widevine Technologies, Inc. Reduction of channel change time for digital media devices using key management and virtual smart cards
US7929698B2 (en) * 2007-06-15 2011-04-19 Sony Corporation Selective encryption to enable trick play with enhanced security
CN101132408B (zh) * 2007-08-16 2010-07-21 华为技术有限公司 流媒体内容的处理方法、设备及系统
US7961878B2 (en) 2007-10-15 2011-06-14 Adobe Systems Incorporated Imparting cryptographic information in network communications
FR2961364B1 (fr) * 2010-06-15 2012-08-17 Logiways France Procede et systeme de protection d'informations par un mot de controle
US8687807B2 (en) * 2011-01-26 2014-04-01 Nagrastar, L.L.C. Cascading dynamic crypto periods
US10045040B2 (en) * 2016-04-03 2018-08-07 Cisco Technology, Inc. Interleaved watermarking

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US4131762A (en) * 1977-05-16 1978-12-26 Bell Telephone Laboratories, Incorporated Buffer storage assignment arrangement for time-division switching systems
US5842033A (en) * 1992-06-30 1998-11-24 Discovision Associates Padding apparatus for passing an arbitrary number of bits through a buffer in a pipeline system
JP3171534B2 (ja) * 1994-10-12 2001-05-28 シンワ株式会社 記録再生ディスクの記録再生装置
JPH08340541A (ja) * 1995-06-12 1996-12-24 Sony Corp デジタルデータの伝送方法、伝送装置、記録方法、記録装置、再生方法、再生装置、記録再生方法及び記録再生装置
US5920572A (en) * 1995-06-30 1999-07-06 Divicom Inc. Transport stream decoder/demultiplexer for hierarchically organized audio-video streams
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US6148082A (en) * 1998-01-14 2000-11-14 Skystream Corporation Scrambling and descrambling control word control in a remultiplexer for video bearing transport streams
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US7239702B1 (en) * 1999-08-20 2007-07-03 Sony Corporation Information recording/reproducing device
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Also Published As

Publication number Publication date
KR101020523B1 (ko) 2011-03-09
EP1602235B1 (en) 2008-08-20
CN1748423A (zh) 2006-03-15
WO2004071091A1 (en) 2004-08-19
KR20050097997A (ko) 2005-10-10
US20060188094A1 (en) 2006-08-24
US7681227B2 (en) 2010-03-16
JP2006518959A (ja) 2006-08-17
EP1602235A1 (en) 2005-12-07
ATE406046T1 (de) 2008-09-15

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Representative=s name: PATENTANWAELTE BRESSEL UND PARTNER, 12489 BERLIN

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