EP1878159A4 - A conditional access system in digital multimedia broadcasting system and method thereof - Google Patents

A conditional access system in digital multimedia broadcasting system and method thereof

Info

Publication number
EP1878159A4
EP1878159A4 EP05820579A EP05820579A EP1878159A4 EP 1878159 A4 EP1878159 A4 EP 1878159A4 EP 05820579 A EP05820579 A EP 05820579A EP 05820579 A EP05820579 A EP 05820579A EP 1878159 A4 EP1878159 A4 EP 1878159A4
Authority
EP
European Patent Office
Prior art keywords
conditional access
digital multimedia
multimedia broadcasting
access system
broadcasting system
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
EP05820579A
Other languages
German (de)
French (fr)
Other versions
EP1878159A1 (en
Inventor
Chung-Pyo Hong
Tae-June Chae
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.)
KTFreetel Co Ltd
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
Publication of EP1878159A1 publication Critical patent/EP1878159A1/en
Publication of EP1878159A4 publication Critical patent/EP1878159A4/en
Ceased legal-status Critical Current

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
EP05820579A 2005-04-21 2005-11-04 A conditional access system in digital multimedia broadcasting system and method thereof Ceased EP1878159A4 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
KR20050033294 2005-04-21
KR1020050095052A KR100732036B1 (en) 2005-04-21 2005-10-10 A system for transmitting the scrambled/encrypted broadcast-signals, and methods thereof
PCT/KR2005/003721 WO2006112581A1 (en) 2005-04-21 2005-11-04 A conditional access system in digital multimedia broadcasting system and method thereof

Publications (2)

Publication Number Publication Date
EP1878159A1 EP1878159A1 (en) 2008-01-16
EP1878159A4 true EP1878159A4 (en) 2010-11-10

Family

ID=37115271

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05820579A Ceased EP1878159A4 (en) 2005-04-21 2005-11-04 A conditional access system in digital multimedia broadcasting system and method thereof

Country Status (4)

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

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100777447B1 (en) * 2006-02-06 2007-11-21 삼성전자주식회사 Digital broadcasting transmission/reception apparatus and coding/decoding method for robust stream thereof
KR20110071226A (en) * 2009-12-21 2011-06-29 한국전자통신연구원 Apparatus and method adding transmitter identification information
EP2355502A1 (en) * 2010-02-03 2011-08-10 Irdeto B.V. Preventing the use of modified receiver firmware in receivers of a conditional access system
KR101710864B1 (en) * 2010-12-20 2017-02-28 한국전자통신연구원 Apparatus for single transmission broadcasting service
CN104363481A (en) * 2014-10-30 2015-02-18 成都康特电子高新科技有限责任公司 Multi-encryption conditional access system based on broadcast television gateway system
CN107040803B (en) * 2017-03-31 2020-04-14 青岛海信电器股份有限公司 Digital television system and descrambling method for simultaneously supporting multiple channels of programs with different frequency points
CN112492586B (en) * 2020-11-23 2023-05-23 中国联合网络通信集团有限公司 Encryption transmission scheme optimization method and device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1271951A1 (en) * 2001-06-22 2003-01-02 Octalis S.A. Conditional access system for digital data by key decryption and re-encryption
US20040093614A1 (en) * 2002-10-29 2004-05-13 Atsunori Sakurai Conditional access system and receiver
US20040120529A1 (en) * 2002-09-23 2004-06-24 International Business Machines Corporation Key distribution in a conditional access system
WO2005011189A1 (en) * 2003-07-29 2005-02-03 Samsung Electronics Co., Ltd. Apparatus and method for identifying a gap filler in a satellite broadcasting system
KR20050016722A (en) * 2005-01-06 2005-02-21 삼성전자주식회사 Digital multimedia broadcasting conditional acess system and method thereof

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6560340B1 (en) * 1995-04-03 2003-05-06 Scientific-Atlanta, Inc. Method and apparatus for geographically limiting service in a conditional access system
US6252964B1 (en) * 1995-04-03 2001-06-26 Scientific-Atlanta, Inc. Authorization of services in a conditional access system
JP3561154B2 (en) * 1997-12-26 2004-09-02 株式会社東芝 Broadcast receiving device and contract management device
KR20040013665A (en) * 2002-08-08 2004-02-14 에스케이 텔레콤주식회사 Discriminating Method of Repeater for wireless broadcasting
KR100641218B1 (en) * 2004-11-19 2006-11-02 엘지전자 주식회사 Conditional access broadcasting system for terrestrial digital multimedia broadcasting and method thereof
KR100690797B1 (en) * 2005-01-27 2007-03-09 엘지전자 주식회사 Conditional access broadcasting system and method thereof

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1271951A1 (en) * 2001-06-22 2003-01-02 Octalis S.A. Conditional access system for digital data by key decryption and re-encryption
US20040120529A1 (en) * 2002-09-23 2004-06-24 International Business Machines Corporation Key distribution in a conditional access system
US20040093614A1 (en) * 2002-10-29 2004-05-13 Atsunori Sakurai Conditional access system and receiver
WO2005011189A1 (en) * 2003-07-29 2005-02-03 Samsung Electronics Co., Ltd. Apparatus and method for identifying a gap filler in a satellite broadcasting system
KR20050016722A (en) * 2005-01-06 2005-02-21 삼성전자주식회사 Digital multimedia broadcasting conditional acess system and method thereof
EP1686711A2 (en) * 2005-01-06 2006-08-02 Samsung Electronics Co.,Ltd. Method and system for conditional access in digital multimedia broadcasting

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2006112581A1 *

Also Published As

Publication number Publication date
KR20060111247A (en) 2006-10-26
KR20060111250A (en) 2006-10-26
CN101167303A (en) 2008-04-23
KR100739487B1 (en) 2007-07-13
WO2006112581A1 (en) 2006-10-26
CN101167303B (en) 2013-03-27
KR100732036B1 (en) 2007-06-25
EP1878159A1 (en) 2008-01-16

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