MXPA04006442A - Encriptacion parcial y mapeo de pid. - Google Patents

Encriptacion parcial y mapeo de pid.

Info

Publication number
MXPA04006442A
MXPA04006442A MXPA04006442A MXPA04006442A MXPA04006442A MX PA04006442 A MXPA04006442 A MX PA04006442A MX PA04006442 A MXPA04006442 A MX PA04006442A MX PA04006442 A MXPA04006442 A MX PA04006442A MX PA04006442 A MXPA04006442 A MX PA04006442A
Authority
MX
Mexico
Prior art keywords
encryption
program
decryption
decoding
encrypted information
Prior art date
Application number
MXPA04006442A
Other languages
English (en)
Inventor
M Pedlow Leo Jr
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 US10/037,498 external-priority patent/US7127619B2/en
Priority claimed from CA 2406329 external-priority patent/CA2406329C/en
Application filed by Sony Electronics Inc filed Critical Sony Electronics Inc
Publication of MXPA04006442A publication Critical patent/MXPA04006442A/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]
    • H04N21/40—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
    • H04N21/43—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
    • H04N21/435—Processing of additional data, e.g. decrypting of additional data, reconstructing software from modules extracted from the transport 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]
    • H04N21/20—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
    • H04N21/235—Processing of additional data, e.g. scrambling of additional data or processing content descriptors
    • 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
    • H04N21/23608—Remultiplexing multiplex streams, e.g. involving modifying time stamps or remapping the packet identifiers
    • 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
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/238—Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidth; Processing of multiplex streams
    • H04N21/2389—Multiplex stream processing, e.g. multiplex stream encrypting
    • H04N21/23895—Multiplex stream processing, e.g. multiplex stream encrypting involving multiplex stream encryption
    • H04N21/23897—Multiplex stream processing, e.g. multiplex stream encrypting involving multiplex stream encryption by partially encrypting, e.g. encrypting only 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]
    • H04N21/40—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
    • H04N21/4344—Remultiplexing of multiplex streams, e.g. by modifying time stamps or remapping the packet identifiers
    • 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
    • H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
    • H04N21/43607—Interfacing a plurality of external cards, e.g. through a DVB Common Interface [DVB-CI]
    • 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
    • H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving encoded video stream packets from an IP network
    • H04N21/4385—Multiplex stream processing, e.g. multiplex stream decrypting
    • H04N21/43853—Multiplex stream processing, e.g. multiplex stream decrypting involving multiplex stream decryption
    • H04N21/43856—Multiplex stream processing, e.g. multiplex stream decrypting involving multiplex stream decryption by partial decryption, e.g. decrypting a multiplex stream that has been partially encrypted
    • 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
    • H04N7/162—Authorising the user terminal, e.g. by paying; Registering the use of a subscription channel, e.g. billing
    • 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)
  • Computer Security & Cryptography (AREA)
  • Theoretical Computer Science (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

Un arreglo de encriptacion para multiples programas de encriptacion. Un sistema de acuerdo con las modalidades de la presente invencion encripta en forma multiple solo una porcion de los datos requeridos para la completa presentacion de un programa de television para permitir la coexistencia de sistemas (40, 140) de encriptacion de acceso multiple condicional asociados con cajas (36, 136) del convertidor-descodificador de multiples fabricantes dentro de un sistema sencillo. Las tecnicas de mapeo de PID se utilizan para distinguirse entre multiples encriptaciones. Al encriptar solo una porcion del programa, se consume dramaticamente menos ancho de banda que la alternativa de multiple encriptacion de todos los datos de programas, permitiendo asi que un gran numero de programas sean llevados sobre el mismo ancho de banda mientras permite la coexistencia de sistemas de acceso multiple condicional en un solo sistema (32) de television por cable.
MXPA04006442A 2002-01-02 2002-12-13 Encriptacion parcial y mapeo de pid. MXPA04006442A (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US10/037,498 US7127619B2 (en) 2001-06-06 2002-01-02 Decoding and decryption of partially encrypted information
CA 2406329 CA2406329C (en) 2001-10-26 2002-10-01 Decoding and decryption of partially encrypted information
PCT/US2002/040045 WO2003065724A1 (en) 2002-01-02 2002-12-13 Decoding and decryption of partially encrypted information

Publications (1)

Publication Number Publication Date
MXPA04006442A true MXPA04006442A (es) 2004-10-04

Family

ID=27664090

Family Applications (1)

Application Number Title Priority Date Filing Date
MXPA04006442A MXPA04006442A (es) 2002-01-02 2002-12-13 Encriptacion parcial y mapeo de pid.

Country Status (6)

Country Link
EP (2) EP2315440B1 (es)
JP (2) JP4557549B2 (es)
KR (3) KR100952799B1 (es)
CN (1) CN100435580C (es)
MX (1) MXPA04006442A (es)
WO (1) WO2003065724A1 (es)

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US7343013B2 (en) * 2003-12-16 2008-03-11 Sony Corporation Composite session-based encryption of video on demand content
US7346163B2 (en) * 2003-10-31 2008-03-18 Sony Corporation Dynamic composition of pre-encrypted video on demand content
JP2007524311A (ja) * 2004-02-23 2007-08-23 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ データストリームを暗号化する方法及び回路
WO2006080724A1 (en) * 2004-10-11 2006-08-03 Kaonmedia Co., Ltd. Digital broadcasting conditional access device having multiple contents descrambling, and method for the same
KR100696823B1 (ko) * 2005-06-30 2007-03-19 주식회사 대우일렉트로닉스 디지털 방송 시스템에서의 의사 스크램블링 방법
KR100789382B1 (ko) * 2005-12-09 2007-12-28 한국전자통신연구원 지상파 ｄｍｂ 비디오, 오디오, 부가 데이터의 제한수신 시스템
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US8667279B2 (en) * 2008-07-01 2014-03-04 Sling Media, Inc. Systems and methods for securely place shifting media content
US10057641B2 (en) * 2009-03-25 2018-08-21 Sony Corporation Method to upgrade content encryption
US8964979B2 (en) * 2011-10-07 2015-02-24 Silicon Image, Inc. Identification and handling of data streams using coded preambles
JP2014033281A (ja) * 2012-08-01 2014-02-20 Nippon Hoso Kyokai <Nhk> 暗号化装置、復号装置、暗号化プログラム、および復号プログラム
KR101703847B1 (ko) * 2014-08-29 2017-02-23 킹스정보통신(주) 휴대용 단말에서 컨텐츠를 보호하는 방법, 상기 방법을 컴퓨터 프로그램으로 기록하기 위한 기록매체, 및 휴대단말 보안 시스템
US10496280B2 (en) * 2015-09-25 2019-12-03 Seagate Technology Llc Compression sampling in tiered storage
WO2017204835A1 (en) * 2016-05-27 2017-11-30 Thomson Licensing Method and apparatus for personal multimedia content distribution
WO2018230366A1 (ja) * 2017-06-16 2018-12-20 ソニーセミコンダクタソリューションズ株式会社 信号処理装置および方法、並びにプログラム
JP2022123667A (ja) * 2021-02-12 2022-08-24 オムロンヘルスケア株式会社 無線通信システム、無線通信方法、無線通信装置およびプログラム

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Also Published As

Publication number Publication date
JP4557549B2 (ja) 2010-10-06
EP2315440A3 (en) 2012-05-09
KR100952799B1 (ko) 2010-04-14
JP2005516559A (ja) 2005-06-02
EP1461950A1 (en) 2004-09-29
KR100989015B1 (ko) 2010-10-20
KR20090115900A (ko) 2009-11-09
EP2315440A2 (en) 2011-04-27
WO2003065724A1 (en) 2003-08-07
EP2315440B1 (en) 2016-03-09
CN100435580C (zh) 2008-11-19
JP2010051030A (ja) 2010-03-04
KR100943131B1 (ko) 2010-02-18
EP1461950B1 (en) 2016-03-09
CN1623324A (zh) 2005-06-01
KR20040070299A (ko) 2004-08-06
KR20090026218A (ko) 2009-03-11
JP5161862B2 (ja) 2013-03-13
EP1461950A4 (en) 2005-06-15

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