KR101004196B1 - 엘리먼터리 스트림 부분적 암호화 - Google Patents

엘리먼터리 스트림 부분적 암호화 Download PDF

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Publication number
KR101004196B1
KR101004196B1 KR1020047010464A KR20047010464A KR101004196B1 KR 101004196 B1 KR101004196 B1 KR 101004196B1 KR 1020047010464 A KR1020047010464 A KR 1020047010464A KR 20047010464 A KR20047010464 A KR 20047010464A KR 101004196 B1 KR101004196 B1 KR 101004196B1
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KR
South Korea
Prior art keywords
delete delete
packets
encrypted
encryption
elementary stream
Prior art date
Application number
KR1020047010464A
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English (en)
Korean (ko)
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KR20040068994A (ko
Inventor
브란트 엘. 캔델로레
로버트 알란 운거
레오 엠. 주니어 페드로우
그레고리 머스키
마크 케네쓰 아이어
Original Assignee
소니 일렉트로닉스 인코포레이티드
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Filing date
Publication date
Priority claimed from US10/037,914 external-priority patent/US7124303B2/en
Priority claimed from CA 2405865 external-priority patent/CA2405865C/en
Application filed by 소니 일렉트로닉스 인코포레이티드 filed Critical 소니 일렉트로닉스 인코포레이티드
Publication of KR20040068994A publication Critical patent/KR20040068994A/ko
Application granted granted Critical
Publication of KR101004196B1 publication Critical patent/KR101004196B1/ko

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43Processing 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
    • H04N21/44Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs
    • H04N21/4405Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving video stream decryption
    • H04N21/44055Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving video stream decryption by partially decrypting, e.g. decrypting a video stream that has been partially encrypted
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/234Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs
    • H04N21/2347Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving video stream encryption
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/234Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs
    • H04N21/2347Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving video stream encryption
    • H04N21/23476Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving video stream encryption by partially encrypting, e.g. encrypting the ending portion of a movie
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/236Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream
    • H04N21/2362Generation or processing of Service Information [SI]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/25Management 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
    • H04N21/266Channel 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
    • H04N21/26606Channel 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]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43Processing 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
    • H04N21/434Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream
    • H04N21/4345Extraction or processing of SI, e.g. extracting service information from an MPEG stream
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/45Management 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
    • H04N21/462Content 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
    • H04N21/4623Processing of entitlement messages, e.g. ECM [Entitlement Control Message] or EMM [Entitlement Management Message]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/80Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
    • H04N21/83Generation or processing of protective or descriptive data associated with content; Content structuring
    • H04N21/835Generation of protective data, e.g. certificates
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00Television systems
    • H04N7/10Adaptations for transmission by electrical cable
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00Television systems
    • H04N7/16Analogue secrecy systems; Analogue subscription systems
    • H04N7/167Systems rendering the television signal unintelligible and subsequently intelligible
    • H04N7/1675Providing 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)
KR1020047010464A 2002-01-02 2002-12-13 엘리먼터리 스트림 부분적 암호화 KR101004196B1 (ko)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US10/037,914 US7124303B2 (en) 2001-06-06 2002-01-02 Elementary stream partial encryption
US10/037,914 2002-01-02
CA2,405,865 2002-10-01
CA 2405865 CA2405865C (en) 2001-10-26 2002-10-01 Elementary stream partial encryption
PCT/US2002/040051 WO2003061173A2 (en) 2002-01-02 2002-12-13 Elementary stream partial encryption

Related Child Applications (1)

Application Number Title Priority Date Filing Date
KR1020097003359A Division KR100988992B1 (ko) 2002-01-02 2002-12-13 엘리먼터리 스트림 부분적 암호화

Publications (2)

Publication Number Publication Date
KR20040068994A KR20040068994A (ko) 2004-08-02
KR101004196B1 true KR101004196B1 (ko) 2010-12-24

Family

ID=25682868

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020047010464A KR101004196B1 (ko) 2002-01-02 2002-12-13 엘리먼터리 스트림 부분적 암호화

Country Status (7)

Country Link
EP (1) EP1486071A4 (ja)
JP (1) JP4446743B2 (ja)
KR (1) KR101004196B1 (ja)
CN (1) CN1633809B (ja)
AU (1) AU2002357846A1 (ja)
MX (1) MXPA04006400A (ja)
WO (1) WO2003061173A2 (ja)

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US7519274B2 (en) 2003-12-08 2009-04-14 Divx, Inc. File format for multiple track digital data
US8472792B2 (en) 2003-12-08 2013-06-25 Divx, Llc Multimedia distribution system
US7515710B2 (en) 2006-03-14 2009-04-07 Divx, Inc. Federated digital rights management scheme including trusted systems
JP4175381B2 (ja) * 2006-05-10 2008-11-05 ソニー株式会社 情報処理システムおよび方法、情報処理装置および方法、並びにプログラム
WO2008086313A1 (en) 2007-01-05 2008-07-17 Divx, Inc. Video distribution system including progressive playback
US8379852B2 (en) 2007-01-11 2013-02-19 Nds Limited Processing video content
US8385545B2 (en) 2007-07-27 2013-02-26 Howard G. Pinder Secure content key distribution using multiple distinct methods
CN101861583B (zh) 2007-11-16 2014-06-04 索尼克Ip股份有限公司 用于多媒体文件的分级及简化索引结构
CN101562813B (zh) * 2009-05-12 2012-01-11 中兴通讯股份有限公司 实时数据业务的实现方法、实时数据业务系统和移动终端
EP2507995A4 (en) 2009-12-04 2014-07-09 Sonic Ip Inc SYSTEMS AND METHODS FOR TRANSPORTING ELEMENTARY BIT TRAIN CRYPTOGRAPHIC MATERIAL
EP2341708B1 (en) 2010-01-05 2017-03-08 Irdeto B.V. Broadcasting variants of digital signals in a conditional access system
CN103283220B (zh) * 2010-12-26 2016-08-10 Lg电子株式会社 发送广播服务的方法、接收广播服务的方法和接收广播服务的设备
US8649514B2 (en) 2010-12-28 2014-02-11 Sony Corporation On-demand switched content encryption
US9247312B2 (en) 2011-01-05 2016-01-26 Sonic Ip, Inc. Systems and methods for encoding source media in matroska container files for adaptive bitrate streaming using hypertext transfer protocol
US9467708B2 (en) 2011-08-30 2016-10-11 Sonic Ip, Inc. Selection of resolutions for seamless resolution switching of multimedia content
US8787570B2 (en) 2011-08-31 2014-07-22 Sonic Ip, Inc. Systems and methods for automatically genenrating top level index files
US8909922B2 (en) 2011-09-01 2014-12-09 Sonic Ip, Inc. Systems and methods for playing back alternative streams of protected content protected using common cryptographic information
CN103873887A (zh) * 2012-12-13 2014-06-18 航天信息股份有限公司 点播节目的播放方法、装置和系统
US9191457B2 (en) 2012-12-31 2015-11-17 Sonic Ip, Inc. Systems, methods, and media for controlling delivery of content
US10225298B2 (en) 2015-01-06 2019-03-05 Divx, Llc Systems and methods for encoding and sharing content between devices

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Also Published As

Publication number Publication date
EP1486071A2 (en) 2004-12-15
WO2003061173A2 (en) 2003-07-24
MXPA04006400A (es) 2004-10-04
JP4446743B2 (ja) 2010-04-07
CN1633809B (zh) 2010-04-21
AU2002357846A1 (en) 2003-07-30
KR20040068994A (ko) 2004-08-02
AU2002357846A8 (en) 2003-07-30
CN1633809A (zh) 2005-06-29
JP2005515694A (ja) 2005-05-26
WO2003061173A3 (en) 2004-09-23
EP1486071A4 (en) 2009-09-30

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