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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) KR100989015B1 (es)
CN (1) CN100435580C (es)
MX (1) MXPA04006442A (es)
WO (1) WO2003065724A1 (es)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7346163B2 (en) * 2003-10-31 2008-03-18 Sony Corporation Dynamic composition of pre-encrypted video on demand content
US7343013B2 (en) * 2003-12-16 2008-03-11 Sony Corporation Composite session-based encryption of video on demand content
US7263187B2 (en) * 2003-10-31 2007-08-28 Sony Corporation Batch mode session-based encryption of video on demand content
US7620180B2 (en) * 2003-11-03 2009-11-17 Sony Corporation Preparation of content for multiple conditional access methods in video on demand
WO2005081544A2 (en) * 2004-02-23 2005-09-01 Koninklijke Philips Electronics N.V. Method and circuit for encrypting a data stream
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
JP2008113172A (ja) * 2006-10-30 2008-05-15 Hitachi Ltd コンテンツ送信装置、コンテンツ受信装置及びコンテンツ暗号化方法
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
JP6952721B2 (ja) * 2016-05-27 2021-10-20 インターデジタル マディソン パテント ホールディングス， エスアーエス パーソナルマルチメディアコンテンツを配信するための方法及び機器
EP3641214A4 (en) * 2017-06-16 2020-04-22 Sony Semiconductor Solutions Corporation SIGNAL PROCESSING DEVICE AND METHOD AND PROGRAM
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
KR102823638B1 (ko) * 2022-05-23 2025-06-23 민팃(주) 데이터 삭제 방법 및 전자 기기

Family Cites Families (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2140656A (en) * 1983-05-13 1984-11-28 Philips Electronic Associated Television transmission system
US4995080A (en) * 1988-08-04 1991-02-19 Zenith Electronics Corporation Television signal scrambling system and method
US5054064A (en) * 1990-03-29 1991-10-01 Gte Laboratories Incorporated Video control system for recorded programs
US5144664A (en) * 1990-11-16 1992-09-01 General Instrument Corporation Apparatus and method for upgrading terminals to maintain a secure communication network
JP3010930B2 (ja) * 1992-09-24 2000-02-21 松下電器産業株式会社 記録再生装置
US5400401A (en) * 1992-10-30 1995-03-21 Scientific Atlanta, Inc. System and method for transmitting a plurality of digital services
US5341425A (en) * 1992-12-02 1994-08-23 Scientific Atlanta, Inc. Methods and apparatus for uniquely encrypting data at a plurality of data transmission sites for transmission to a reception site
JP2707950B2 (ja) * 1993-07-30 1998-02-04 ソニー株式会社 ディジタル画像情報処理装置
JPH09510593A (ja) * 1994-03-18 1997-10-21 トムソン コンシューマ エレクトロニクス インコーポレイテッド 有料テレビジョンの信号受信システムのデータ暗号解読装置
FI95756C (fi) * 1994-03-21 1996-03-11 Nokia Technology Gmbh Menetelmä digitaalista informaatiota sisältävän bittivirran salaamiseksi ja salauksen purkamiseksi
FI97928C (fi) 1994-03-21 1997-03-10 Nokia Technology Gmbh Menetelmä digitaalisessa muodossa siirrettävän televisiolähetyksen salaamiseksi
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.
US5999622A (en) * 1995-11-22 1999-12-07 Microsoft Corporation Method and apparatus for protecting widely distributed digital information
US6055314A (en) * 1996-03-22 2000-04-25 Microsoft Corporation System and method for secure purchase and delivery of video content programs
US5751813A (en) * 1996-04-29 1998-05-12 Motorola, Inc. Use of an encryption server for encrypting messages
US5838873A (en) * 1996-05-31 1998-11-17 Thomson Consumer Electronics, Inc. Packetized data formats for digital data storage media
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
US6012144A (en) * 1996-10-08 2000-01-04 Pickett; Thomas E. Transaction security method and apparatus
US5937067A (en) * 1996-11-12 1999-08-10 Scientific-Atlanta, Inc. Apparatus and method for local encryption control of a global transport data stream
JPH10145773A (ja) * 1996-11-14 1998-05-29 Toshiba Corp 動画像データの暗号化方法およびその方法が適用されるコンピュータシステム並びに動画像データ符号化／復号化装置
US5818934A (en) * 1996-12-18 1998-10-06 Phillips Electronics North America Corporation Method and apparatus for providing a cryptographically secure interface between the decryption engine and the system decoder of a digital television receiver
JP2000013696A (ja) * 1998-06-19 2000-01-14 Sony Corp デジタル放送受信機およびその選局方法、並びにデータ伝送方法
JP2001086481A (ja) * 1999-07-13 2001-03-30 Matsushita Electric Ind Co Ltd パケット分離装置、ディジタル信号転送システム、暗号化装置、媒体、および情報集合体
ES2225240T3 (es) 1999-10-06 2005-03-16 Thomson Licensing S.A. Metodo de acceso a datos de audio/video transmitidos y protegidos segun diferentes sistemas de acceso condicional a traves de un mismo apar ato.
WO2001037562A1 (en) * 1999-11-19 2001-05-25 Scm Microsystems Gmbh Adaptive trans-scrambling mechanism for digital television multiple data transport system

Also Published As

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

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