MXPA04006400A - Cifrado parcial de flujos elementales. - Google Patents

Cifrado parcial de flujos elementales.

Info

Publication number
MXPA04006400A
MXPA04006400A MXPA04006400A MXPA04006400A MXPA04006400A MX PA04006400 A MXPA04006400 A MX PA04006400A MX PA04006400 A MXPA04006400 A MX PA04006400A MX PA04006400 A MXPA04006400 A MX PA04006400A MX PA04006400 A MXPA04006400 A MX PA04006400A
Authority
MX
Mexico
Prior art keywords
encryption
program
television
permitting
conditional access
Prior art date
Application number
MXPA04006400A
Other languages
English (en)
Spanish (es)
Inventor
Kenneth Ever Mark
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 MXPA04006400A publication Critical patent/MXPA04006400A/es

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)
MXPA04006400A 2002-01-02 2002-12-13 Cifrado parcial de flujos elementales. MXPA04006400A (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US10/037,914 US7124303B2 (en) 2001-06-06 2002-01-02 Elementary stream partial encryption
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 (1)

Publication Number Publication Date
MXPA04006400A true MXPA04006400A (es) 2004-10-04

Family

ID=25682868

Family Applications (1)

Application Number Title Priority Date Filing Date
MXPA04006400A MXPA04006400A (es) 2002-01-02 2002-12-13 Cifrado parcial de flujos elementales.

Country Status (7)

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

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
EP1999883A4 (en) 2006-03-14 2013-03-06 Divx Llc SCHEME FOR THE MANAGEMENT OF UNITED DIGITAL RIGHTS, INCLUDING TRUSTWORTHY 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
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
KR20100106327A (ko) 2007-11-16 2010-10-01 디브이엑스, 인크. 멀티미디어 파일을 위한 계층적 및 감소된 인덱스 구조
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
CA2782825C (en) 2009-12-04 2016-04-26 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
CA2822603C (en) * 2010-12-26 2016-05-24 Lg Electronics Inc. Method for transmitting broadcast service, method for receiving the broadcasting service, and apparatus for receiving the broadcasting service
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
US9313510B2 (en) 2012-12-31 2016-04-12 Sonic Ip, Inc. Use of objective quality measures of streamed content to reduce streaming bandwidth
US9191457B2 (en) 2012-12-31 2015-11-17 Sonic Ip, Inc. Systems, methods, and media for controlling delivery of content
US9094737B2 (en) 2013-05-30 2015-07-28 Sonic Ip, Inc. Network video streaming with trick play based on separate trick play files
ES2746954T3 (es) 2015-01-06 2020-03-09 Divx Llc Sistemas y métodos para codificar y compartir contenido entre dispositivos

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3688855T2 (de) * 1985-05-01 1994-03-17 Gen Instrument Corp Satellitenübertragungssystem mit Direktübertragung.
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
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
FR2718594B1 (fr) * 1994-04-06 1996-04-26 France Telecom Procédé de diffusion de programmes à accès conditionnel progressif et à séparation du flux d'information.
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
FI97007C (fi) * 1994-08-01 1996-09-25 Nokia Technology Gmbh Järjestelmä video-, audio- ja datapalveluja lähettävien eri hallintajärjestelmien kontrolloimiseksi sekä järjestelmässä käytettävä vastaanotin
US5796829A (en) * 1994-09-09 1998-08-18 The Titan Corporation Conditional access 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
FR2752655B1 (fr) * 1996-08-20 1998-09-18 France Telecom Procede et equipement pour affecter a un programme de television deja en acces conditionnel un acces conditionnel complementaire
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
IL148763A0 (en) * 1999-10-06 2002-09-12 Thomson Licensing Sa Method and system for handling two ca systems in a same receiver

Also Published As

Publication number Publication date
EP1486071A4 (en) 2009-09-30
EP1486071A2 (en) 2004-12-15
JP4446743B2 (ja) 2010-04-07
CN1633809B (zh) 2010-04-21
AU2002357846A8 (en) 2003-07-30
JP2005515694A (ja) 2005-05-26
KR101004196B1 (ko) 2010-12-24
WO2003061173A2 (en) 2003-07-24
CN1633809A (zh) 2005-06-29
KR20040068994A (ko) 2004-08-02
WO2003061173A3 (en) 2004-09-23
AU2002357846A1 (en) 2003-07-30

Similar Documents

Publication Publication Date Title
MXPA04006400A (es) Cifrado parcial de flujos elementales.
EP2343890A3 (en) Partial encryption and PID mapping
US7787622B2 (en) Efficient distribution of encrypted content for multiple content access systems
MXPA04006442A (es) Encriptacion parcial y mapeo de pid.
MXPA04006249A (es) Encripcion parcial de paquetes criticos.
EP2343891A3 (en) Partial Encryption and PID mapping
US20050102702A1 (en) Cablecard with content manipulation
US7062048B2 (en) Apparatus and method for single encryption with multiple authorization of distributed content data
CA2715445C (en) Encryption system for satellite delivered television
US8139768B2 (en) Encrypting content in a tuner device and analyzing content protection policy
WO2003003587A3 (en) Conditional access system
CN1163073C (zh) 在同一接收器中管理两种条件访问系统的方法和系统
KR20030007798A (ko) 암호화된 억세스 제어 정보를 전송하기 위한 시스템
KR20050026969A (ko) 암호화된 디지털 신호들의 저장
MXPA04006248A (es) Encripcion parcial por division de tiempo.
CA2647470A1 (en) Decryption key reuse in encrypted digital data stream distribution systems
US7623662B2 (en) Default encryption and decryption
JP2016116065A (ja) 受信機、送信機、及びコンテンツの受信方法
US7254236B1 (en) Method and system for handling two CA systems in a same receiver
JP2005136465A (ja) 復号化処理装置、復号化処理方法、およびそれを用いた受信装置
JP6374692B2 (ja) 送信装置および受信装置
CA2405865A1 (en) Elementary stream partial encryption
CA2406329A1 (en) Decoding and decryption of partially encrypted information
CA2405902A1 (en) Time division partial encryption
CA2405901A1 (en) Critical packet partial encryption

Legal Events

Date Code Title Description
FG Grant or registration