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EP1486071A4 - Elementary stream partial encryption - Google Patents

Elementary stream partial encryption

Info

Publication number
EP1486071A4
EP1486071A4 EP02792388A EP02792388A EP1486071A4 EP 1486071 A4 EP1486071 A4 EP 1486071A4 EP 02792388 A EP02792388 A EP 02792388A EP 02792388 A EP02792388 A EP 02792388A EP 1486071 A4 EP1486071 A4 EP 1486071A4
Authority
EP
European Patent Office
Prior art keywords
elementary stream
partial encryption
stream partial
encryption
elementary
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.)
Ceased
Application number
EP02792388A
Other languages
German (de)
French (fr)
Other versions
EP1486071A2 (en
Inventor
Brant L Candelore
Robert Allan Unger
Leo M Pedlow Jr
Gregory Mirsky
Mark Kenneth Eyer
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.)
Sony Electronics Inc
Original Assignee
Sony Electronics Inc
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
Priority claimed from US10/037,914 external-priority patent/US7124303B2/en
Priority claimed from CA 2405865 external-priority patent/CA2405865C/en
Application filed by Sony Electronics Inc filed Critical Sony Electronics Inc
Publication of EP1486071A2 publication Critical patent/EP1486071A2/en
Publication of EP1486071A4 publication Critical patent/EP1486071A4/en
Ceased 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
    • H04N21/44—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
    • H04N21/44055—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 by partially decrypting, e.g. decrypting a video stream that has been partially encrypted
    • 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
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/236—Assembling 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
    • H04N21/2362—Generation or processing of Service Information [SI]
    • 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
    • H04N21/434—Disassembling 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
    • H04N21/4345—Extraction or processing of SI, e.g. extracting service information from an MPEG stream
    • 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]
    • H04N21/80—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
    • H04N7/10—Adaptations for transmission by electrical cable
    • 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 Security & Cryptography (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
EP02792388A 2002-01-02 2002-12-13 Elementary stream partial encryption Ceased EP1486071A4 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US37914 2002-01-02
US10/037,914 US7124303B2 (en) 2001-06-06 2002-01-02 Elementary stream partial encryption
CA2405865 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

Publications (2)

Publication Number Publication Date
EP1486071A2 EP1486071A2 (en) 2004-12-15
EP1486071A4 true EP1486071A4 (en) 2009-09-30

Family

ID=25682868

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02792388A Ceased EP1486071A4 (en) 2002-01-02 2002-12-13 Elementary stream partial encryption

Country Status (7)

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

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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 (en) * 2006-05-10 2008-11-05 ソニー株式会社 Information processing system and method, information processing apparatus and method, and program
EP3901779B1 (en) 2007-01-05 2022-10-26 DivX, LLC Video distribution system including progressive playback
EP2119230B1 (en) 2007-01-11 2013-07-03 NDS Limited Processing video content
US8385545B2 (en) * 2007-07-27 2013-02-26 Howard G. Pinder Secure content key distribution using multiple distinct methods
US8233768B2 (en) 2007-11-16 2012-07-31 Divx, Llc Hierarchical and reduced index structures for multimedia files
CN101562813B (en) * 2009-05-12 2012-01-11 中兴通讯股份有限公司 Method for implementing real-time data service, real-time data service system and mobile terminal
WO2011068668A1 (en) 2009-12-04 2011-06-09 Divx, Llc Elementary bitstream cryptographic material transport systems and methods
EP2341708B1 (en) 2010-01-05 2017-03-08 Irdeto B.V. Broadcasting variants of digital signals in a conditional access system
KR20140084345A (en) * 2010-12-26 2014-07-04 엘지전자 주식회사 A method for transmitting a broadcast service, a method for receiving it and an apparatus for receiving it
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
US8806188B2 (en) 2011-08-31 2014-08-12 Sonic Ip, Inc. Systems and methods for performing adaptive bitrate streaming using automatically generated 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 (en) * 2012-12-13 2014-06-18 航天信息股份有限公司 Request program playing method, device and system
US9191457B2 (en) 2012-12-31 2015-11-17 Sonic Ip, Inc. Systems, methods, and media for controlling delivery of content
US9313510B2 (en) 2012-12-31 2016-04-12 Sonic Ip, Inc. Use of objective quality measures of streamed content to reduce streaming bandwidth
US9094737B2 (en) 2013-05-30 2015-07-28 Sonic Ip, Inc. Network video streaming with trick play based on separate trick play files
ES2746954T3 (en) 2015-01-06 2020-03-09 Divx Llc Systems and methods to encode and share content between devices

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5420866A (en) * 1994-03-29 1995-05-30 Scientific-Atlanta, Inc. Methods for providing conditional access information to decoders in a packet-based multiplexed communications system
WO1995028058A1 (en) * 1994-04-06 1995-10-19 France Telecom Method for broadcasting gradual conditional access programmes with data flow separation, and receiver therefor
EP0696141A2 (en) * 1994-08-01 1996-02-07 NOKIA TECHNOLOGY GmbH System for controlling different conditional access systems sending video, audio and data services and a receiver to be used in the system
WO1998008341A1 (en) * 1996-08-20 1998-02-26 France Telecom Method and equipment for allocating to a television programme already conditionally accessed a complementary conditional access
US5796829A (en) * 1994-09-09 1998-08-18 The Titan Corporation Conditional access system

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EP0200310B1 (en) * 1985-05-01 1993-08-11 General Instrument Corporation Direct broadcast satellite signal transmission system
US5247575A (en) * 1988-08-16 1993-09-21 Sprague Peter J Information distribution system
US5018197A (en) * 1990-07-30 1991-05-21 Zenith Electronics Corporation Secure video decoder system
US5666293A (en) * 1994-05-27 1997-09-09 Bell Atlantic Network Services, Inc. Downloading operating system software through a broadcast channel
US5629981A (en) * 1994-07-29 1997-05-13 Texas Instruments Incorporated Information management and security system
US5742680A (en) * 1995-11-13 1998-04-21 E Star, Inc. Set top box for receiving and decryption and descrambling a plurality of satellite television signals
US5894516A (en) * 1996-07-10 1999-04-13 Ncr Corporation Broadcast software distribution
US5915018A (en) * 1996-11-05 1999-06-22 Intel Corporation Key management system for DVD copyright management
US6229895B1 (en) * 1999-03-12 2001-05-08 Diva Systems Corp. Secure distribution of video on-demand
KR100741730B1 (en) * 1999-10-06 2007-07-24 톰슨 라이센싱 Method and system for processing two CA systems in the same receiver

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5420866A (en) * 1994-03-29 1995-05-30 Scientific-Atlanta, Inc. Methods for providing conditional access information to decoders in a packet-based multiplexed communications system
WO1995028058A1 (en) * 1994-04-06 1995-10-19 France Telecom Method for broadcasting gradual conditional access programmes with data flow separation, and receiver therefor
EP0696141A2 (en) * 1994-08-01 1996-02-07 NOKIA TECHNOLOGY GmbH System for controlling different conditional access systems sending video, audio and data services and a receiver to be used in the system
US5796829A (en) * 1994-09-09 1998-08-18 The Titan Corporation Conditional access system
WO1998008341A1 (en) * 1996-08-20 1998-02-26 France Telecom Method and equipment for allocating to a television programme already conditionally accessed a complementary conditional access

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
"FUNCTIONAL MODEL OF A CONDITIONAL ACCESS SYSTEM", EBU REVIEW- TECHNICAL, EUROPEAN BROADCASTING UNION. BRUSSELS, BE, no. 266, 21 December 1995 (1995-12-21), pages 64 - 77, XP000559450, ISSN: 0251-0936 *
CUTTS D J: "DVB CONDITIONAL ACCESS", ELECTRONICS AND COMMUNICATION ENGINEERING JOURNAL, INSTITUTION OF ELECTRICAL ENGINEERS, LONDON, GB, vol. 9, no. 1, 1 February 1997 (1997-02-01), pages 21 - 27, XP000722905, ISSN: 0954-0695 *
See also references of WO03061173A2 *

Also Published As

Publication number Publication date
MXPA04006400A (en) 2004-10-04
EP1486071A2 (en) 2004-12-15
WO2003061173A2 (en) 2003-07-24
KR101004196B1 (en) 2010-12-24
AU2002357846A1 (en) 2003-07-30
WO2003061173A3 (en) 2004-09-23
JP4446743B2 (en) 2010-04-07
CN1633809A (en) 2005-06-29
JP2005515694A (en) 2005-05-26
KR20040068994A (en) 2004-08-02
CN1633809B (en) 2010-04-21
AU2002357846A8 (en) 2003-07-30

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