CN1748423A - 加密视频信息的生成 - Google Patents

加密视频信息的生成 Download PDF

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Publication number
CN1748423A
CN1748423A CNA2004800038520A CN200480003852A CN1748423A CN 1748423 A CN1748423 A CN 1748423A CN A2004800038520 A CNA2004800038520 A CN A2004800038520A CN 200480003852 A CN200480003852 A CN 200480003852A CN 1748423 A CN1748423 A CN 1748423A
Authority
CN
China
Prior art keywords
stream
information
scrambling
control word
segment
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.)
Pending
Application number
CNA2004800038520A
Other languages
English (en)
Chinese (zh)
Inventor
S·兹瓦特
P·－J·格兰特矢
T·简
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.)
Koninklijke Philips NV
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 CN1748423A publication Critical patent/CN1748423A/zh
Pending legal-status Critical Current

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    • 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 programme guide from data received from the Internet and a Head-end or 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)
CNA2004800038520A 2003-02-10 2004-01-20 加密视频信息的生成 Pending CN1748423A (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP03100264.5 2003-02-10
EP03100264 2003-02-10

Publications (1)

Publication Number Publication Date
CN1748423A true CN1748423A (zh) 2006-03-15

Family

ID=32842824

Family Applications (1)

Application Number Title Priority Date Filing Date
CNA2004800038520A Pending CN1748423A (zh) 2003-02-10 2004-01-20 加密视频信息的生成

Country Status (8)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103392312A (zh) * 2011-01-26 2013-11-13 纳格拉星有限责任公司 级联动态加扰周期

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US6766376B2 (en) 2000-09-12 2004-07-20 Sn Acquisition, L.L.C Streaming media buffering system
KR20070122577A (ko) * 2005-04-26 2007-12-31 코닌클리케 필립스 일렉트로닉스 엔.브이. 패킷들의 시퀀스 및 상기 패킷과 관련된 타이밍 정보를갖는 데이터 스트림을 처리하기 위한 디바이스 및 방법
KR20080005569A (ko) * 2005-04-26 2008-01-14 코닌클리케 필립스 일렉트로닉스 엔.브이. 암호 시스템에서 암호화된 데이터 스트림을 처리하는 장치및 방법
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
EP1742474A1 (fr) * 2005-07-07 2007-01-10 Nagracard S.A. Méthode et dispositif de contrôle d'accès à des données chiffrées
EP1742475A1 (fr) * 2005-07-07 2007-01-10 Nagravision S.A. Méthode 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
EP2439946B1 (en) * 2006-05-04 2013-07-10 NDS Limited 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
US10045040B2 (en) * 2016-04-03 2018-08-07 Cisco Technology, Inc. Interleaved watermarking

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103392312A (zh) * 2011-01-26 2013-11-13 纳格拉星有限责任公司 级联动态加扰周期
CN103392312B (zh) * 2011-01-26 2016-04-13 纳格拉星有限责任公司 使用级联动态加扰周期来加密和解密传输串流的系统和方法

Also Published As

Publication number Publication date
WO2004071091A1 (en) 2004-08-19
KR20050097997A (ko) 2005-10-10
US20060188094A1 (en) 2006-08-24
JP2006518959A (ja) 2006-08-17
KR101020523B1 (ko) 2011-03-09
US7681227B2 (en) 2010-03-16
DE602004015946D1 (de) 2008-10-02
ATE406046T1 (de) 2008-09-15
EP1602235B1 (en) 2008-08-20
EP1602235A1 (en) 2005-12-07

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Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
ASS Succession or assignment of patent right

Owner name: IPG ELECTRONICS 503 CO., LTD.

Free format text: FORMER OWNER: KONINKLIJKE PHILIPS ELECTRONICS N.V.

Effective date: 20090828

C41 Transfer of patent application or patent right or utility model
TA01 Transfer of patent application right

Effective date of registration: 20090828

Address after: British Channel Islands

Applicant after: Koninkl Philips Electronics NV

Address before: Holland Ian Deho Finn

Applicant before: Koninklijke Philips Electronics N.V.

C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication

Open date: 20060315