WO2006112581A1 - Systeme d'acces conditionnel dans un systeme de radiodiffusion multimedia numerique et procede associe - Google Patents

Systeme d'acces conditionnel dans un systeme de radiodiffusion multimedia numerique et procede associe Download PDF

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Publication number
WO2006112581A1
WO2006112581A1 PCT/KR2005/003721 KR2005003721W WO2006112581A1 WO 2006112581 A1 WO2006112581 A1 WO 2006112581A1 KR 2005003721 W KR2005003721 W KR 2005003721W WO 2006112581 A1 WO2006112581 A1 WO 2006112581A1
Authority
WO
WIPO (PCT)
Prior art keywords
identification information
transmitter identification
key
broadcast signals
control word
Prior art date
Application number
PCT/KR2005/003721
Other languages
English (en)
Inventor
Chung-Pyo Hong
Tae-June Chae
Original Assignee
Ktfreetel Co., Ltd.
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
Application filed by Ktfreetel Co., Ltd. filed Critical Ktfreetel Co., Ltd.
Priority to CN200580049538.0A priority Critical patent/CN101167303B/zh
Priority to EP05820579A priority patent/EP1878159A4/fr
Publication of WO2006112581A1 publication Critical patent/WO2006112581A1/fr

Links

Classifications

    • 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
    • H04N7/163—Authorising the user terminal, e.g. by paying; Registering the use of a subscription channel, e.g. billing by receiver means only
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/02—Arrangements for relaying broadcast information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/28—Arrangements for simultaneous broadcast of plural pieces of information
    • H04H20/30—Arrangements for simultaneous broadcast of plural pieces of information by a single channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/65—Arrangements characterised by transmission systems for broadcast
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
    • H04H60/09—Arrangements for device control with a direct linkage to broadcast information or to broadcast space-time; Arrangements for control of broadcast-related services
    • H04H60/14—Arrangements for conditional access to broadcast information or to broadcast-related services
    • H04H60/15—Arrangements for conditional access to broadcast information or to broadcast-related services on receiving information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
    • H04H60/09—Arrangements for device control with a direct linkage to broadcast information or to broadcast space-time; Arrangements for control of broadcast-related services
    • H04H60/14—Arrangements for conditional access to broadcast information or to broadcast-related services
    • H04H60/23—Arrangements for conditional access to broadcast information or to broadcast-related services using cryptography, e.g. encryption, authentication, key distribution
    • 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]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/61—Network physical structure; Signal processing
    • H04N21/6106—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network
    • H04N21/6112—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network involving terrestrial transmission, e.g. DVB-T
    • 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]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/61—Network physical structure; Signal processing
    • H04N21/6106—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network
    • H04N21/6143—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network involving transmission via a satellite
    • 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]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
    • H04N21/631—Multimode Transmission, e.g. transmitting basic layers and enhancement layers of the content over different transmission paths or transmitting with different error corrections, different keys or with different transmission protocols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computer Security & Cryptography (AREA)
  • Databases & Information Systems (AREA)
  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

La présente invention se rapporte à un système d'émission/réception et à un procédé permettant d'accéder de manière conditionnelle à la radiodiffusion multimédia numérique. Dans le système d'émission, un système central clé brouille les trains d'émission au moyen d'un mot de commande généré à partir de premières informations d'identification d'émetteur, chiffre les trains d'émission, et transmet les signaux de radiodiffusion chiffrés comportant les premières informations d'identification d'émetteur par l'intermédiaire d'un réseau clé. Un système relais reçoit les signaux de radiodiffusion provenant du système central clé, insère dans ces signaux de secondes informations d'identification d'émetteur différentes des premières informations d'identification d'émetteur, et les transmet par l'intermédiaire d'un réseau relais. Un système d'authentification reçoit une clé de correspondance du système central clé et transmet cette clé à une station d'abonnés de service étendu, disponible pour les services fournis par le système relais. La station d'abonnés de service étendu reçoit les signaux de radiodiffusion chiffrés pour détecter les secondes informations d'identification d'émetteur, génère un mot de commande au moyen de la clé de correspondance, et déchiffre les signaux de radiodiffusion reçus au moyen de ce mot de commande.
PCT/KR2005/003721 2005-04-21 2005-11-04 Systeme d'acces conditionnel dans un systeme de radiodiffusion multimedia numerique et procede associe WO2006112581A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN200580049538.0A CN101167303B (zh) 2005-04-21 2005-11-04 数字多媒体广播系统中的条件接收系统及其方法
EP05820579A EP1878159A4 (fr) 2005-04-21 2005-11-04 Systeme d'acces conditionnel dans un systeme de radiodiffusion multimedia numerique et procede associe

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR10-2005-0033294 2005-04-21
KR20050033294 2005-04-21
KR1020050095052A KR100732036B1 (ko) 2005-04-21 2005-10-10 디지털 멀티미디어 방송 신호 송출 시스템 및 그 방법
KR10-2005-0095052 2005-10-10

Publications (1)

Publication Number Publication Date
WO2006112581A1 true WO2006112581A1 (fr) 2006-10-26

Family

ID=37115271

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2005/003721 WO2006112581A1 (fr) 2005-04-21 2005-11-04 Systeme d'acces conditionnel dans un systeme de radiodiffusion multimedia numerique et procede associe

Country Status (4)

Country Link
EP (1) EP1878159A4 (fr)
KR (2) KR100732036B1 (fr)
CN (1) CN101167303B (fr)
WO (1) WO2006112581A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2348653A1 (fr) * 2009-12-21 2011-07-27 Electronics and Telecommunications Research Institute Appareil et procédé d'ajout d'informations d'identification de transmetteur
US20110191589A1 (en) * 2010-02-03 2011-08-04 Irdeto Corporate B.V. Preventing the use of modified receiver firmware in receivers of a conditional access system
CN107040803A (zh) * 2017-03-31 2017-08-11 青岛海信电器股份有限公司 数字电视系统及同时支持多路不同频点节目的解扰方法
CN112492586A (zh) * 2020-11-23 2021-03-12 中国联合网络通信集团有限公司 加密传输方案优化方法及装置

Families Citing this family (3)

* Cited by examiner, † Cited by third party
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KR100777447B1 (ko) * 2006-02-06 2007-11-21 삼성전자주식회사 디지털 방송 송신 및 수신 장치 그리고 그에 적용되는로버스트 스트림 코딩 및 디코딩 방법
KR101710864B1 (ko) * 2010-12-20 2017-02-28 한국전자통신연구원 단일 송신 방송 서비스를 위한 장치
CN104363481A (zh) * 2014-10-30 2015-02-18 成都康特电子高新科技有限责任公司 基于广电网关系统的多重加密条件接收系统

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6516412B2 (en) * 1995-04-03 2003-02-04 Scientific-Atlanta, Inc. Authorization of services in a conditional access system
US20030169879A1 (en) * 1995-04-03 2003-09-11 Akins, Glendon L. Method and apparatus for geographically limiting sevice in a conditional access system
US6650754B2 (en) * 1997-12-26 2003-11-18 Kabushiki Kaisha Toshiba Broadcast reception device and contract management device using common master key in conditional access broadcast system

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EP1271951A1 (fr) * 2001-06-22 2003-01-02 Octalis S.A. Système d'accès conditionnel de données numériques par déchiffrage des clés et réchiffrage
KR20040013665A (ko) * 2002-08-08 2004-02-14 에스케이 텔레콤주식회사 무선 방송용 중계기의 식별 방법
CN1241350C (zh) * 2002-09-23 2006-02-08 国际商业机器公司 有条件接收系统中的密钥分配方法及装置
US20040093614A1 (en) * 2002-10-29 2004-05-13 Atsunori Sakurai Conditional access system and receiver
KR20050013783A (ko) * 2003-07-29 2005-02-05 삼성전자주식회사 위성 방송 시스템에 있어서 위성 중계기 식별 장치 및 방법
KR100641218B1 (ko) * 2004-11-19 2006-11-02 엘지전자 주식회사 지상파 디지털 멀티미디어 방송을 위한 수신제한 방송시스템 및 방법
KR20050016722A (ko) * 2005-01-06 2005-02-21 삼성전자주식회사 디지털 멀티미디어 방송 제한 수신 시스템 및 그 방법
KR100690797B1 (ko) * 2005-01-27 2007-03-09 엘지전자 주식회사 수신제한 방송 시스템 및 방법

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6516412B2 (en) * 1995-04-03 2003-02-04 Scientific-Atlanta, Inc. Authorization of services in a conditional access system
US20030169879A1 (en) * 1995-04-03 2003-09-11 Akins, Glendon L. Method and apparatus for geographically limiting sevice in a conditional access system
US6650754B2 (en) * 1997-12-26 2003-11-18 Kabushiki Kaisha Toshiba Broadcast reception device and contract management device using common master key in conditional access broadcast system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
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See also references of EP1878159A4 *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2348653A1 (fr) * 2009-12-21 2011-07-27 Electronics and Telecommunications Research Institute Appareil et procédé d'ajout d'informations d'identification de transmetteur
US20110191589A1 (en) * 2010-02-03 2011-08-04 Irdeto Corporate B.V. Preventing the use of modified receiver firmware in receivers of a conditional access system
US9077854B2 (en) * 2010-02-03 2015-07-07 Irdeto B.V. Preventing the use of modified receiver firmware in receivers of a conditional access system
CN107040803A (zh) * 2017-03-31 2017-08-11 青岛海信电器股份有限公司 数字电视系统及同时支持多路不同频点节目的解扰方法
CN112492586A (zh) * 2020-11-23 2021-03-12 中国联合网络通信集团有限公司 加密传输方案优化方法及装置
CN112492586B (zh) * 2020-11-23 2023-05-23 中国联合网络通信集团有限公司 加密传输方案优化方法及装置

Also Published As

Publication number Publication date
KR20060111247A (ko) 2006-10-26
KR20060111250A (ko) 2006-10-26
CN101167303A (zh) 2008-04-23
KR100739487B1 (ko) 2007-07-13
CN101167303B (zh) 2013-03-27
KR100732036B1 (ko) 2007-06-25
EP1878159A4 (fr) 2010-11-10
EP1878159A1 (fr) 2008-01-16

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