CN1310497C - 对不同的服务供应商和服务区域使用多个密钥广播dtv用的ca系统 - Google Patents

对不同的服务供应商和服务区域使用多个密钥广播dtv用的ca系统 Download PDF

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Publication number
CN1310497C
CN1310497C CNB018236618A CN01823661A CN1310497C CN 1310497 C CN1310497 C CN 1310497C CN B018236618 A CNB018236618 A CN B018236618A CN 01823661 A CN01823661 A CN 01823661A CN 1310497 C CN1310497 C CN 1310497C
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CN
China
Prior art keywords
key
smart card
transmission events
service
scrambling
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.)
Expired - Fee Related
Application number
CNB018236618A
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English (en)
Chinese (zh)
Other versions
CN1550100A (zh
Inventor
A·M·埃斯基茨奥格卢
D·J·杜菲尔德
B·W·小贝耶斯
M·S·戴斯
D·E·维拉
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.)
Thomson Licensing SAS
RCA Licensing Corp
Original Assignee
RCA Licensing Corp
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 RCA Licensing Corp filed Critical RCA Licensing Corp
Publication of CN1550100A publication Critical patent/CN1550100A/zh
Application granted granted Critical
Publication of CN1310497C publication Critical patent/CN1310497C/zh
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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    • 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
    • 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
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/418—External card to be used in combination with the client device, e.g. for conditional access
    • H04N21/4181—External card to be used in combination with the client device, e.g. for conditional access for conditional access
    • 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
    • H04H—BROADCAST COMMUNICATION
    • H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
    • H04H60/35—Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users
    • H04H60/38—Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users for identifying broadcast time or space
    • H04H60/41—Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users for identifying broadcast time or space for identifying broadcast space, i.e. broadcast channels, broadcast stations or broadcast areas
    • H04H60/42—Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users for identifying broadcast time or space for identifying broadcast space, i.e. broadcast channels, broadcast stations or broadcast areas for identifying broadcast areas
    • 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]
    • H04N21/20—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
    • H04N21/26613—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 keys in general
    • 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
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/418—External card to be used in combination with the client device, e.g. for conditional access
    • 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
    • H04N21/44—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
    • H04N21/45—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
    • H04N21/4508—Management of client data or end-user data
    • H04N21/4516—Management of client data or end-user data involving client characteristics, e.g. Set-Top-Box type, software version or amount of memory available
    • 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
    • H04N21/454—Content or additional data filtering, e.g. blocking advertisements
    • 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
    • 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)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Databases & Information Systems (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Theoretical Computer Science (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
CNB018236618A 2001-09-25 2001-09-25 对不同的服务供应商和服务区域使用多个密钥广播dtv用的ca系统 Expired - Fee Related CN1310497C (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2001/029818 WO2003043310A1 (en) 2001-09-25 2001-09-25 Ca system for broadcast dtv using multiple keys for different service providers and service areas

Publications (2)

Publication Number Publication Date
CN1550100A CN1550100A (zh) 2004-11-24
CN1310497C true CN1310497C (zh) 2007-04-11

Family

ID=21742859

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB018236618A Expired - Fee Related CN1310497C (zh) 2001-09-25 2001-09-25 对不同的服务供应商和服务区域使用多个密钥广播dtv用的ca系统

Country Status (8)

Country Link
EP (1) EP1483900A1 (de)
JP (1) JP2005510137A (de)
KR (1) KR20040037133A (de)
CN (1) CN1310497C (de)
BR (1) BR0117132A (de)
IL (1) IL160542A0 (de)
MX (1) MXPA04002726A (de)
WO (1) WO2003043310A1 (de)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9100457B2 (en) 2001-03-28 2015-08-04 Qualcomm Incorporated Method and apparatus for transmission framing in a wireless communication system
US7352868B2 (en) 2001-10-09 2008-04-01 Philip Hawkes Method and apparatus for security in a data processing system
US7649829B2 (en) 2001-10-12 2010-01-19 Qualcomm Incorporated Method and system for reduction of decoding complexity in a communication system
US7599655B2 (en) 2003-01-02 2009-10-06 Qualcomm Incorporated Method and apparatus for broadcast services in a communication system
CN101820624B (zh) * 2003-07-08 2011-11-16 高通股份有限公司 数据处理系统中的安全方法和装置
US8724803B2 (en) 2003-09-02 2014-05-13 Qualcomm Incorporated Method and apparatus for providing authenticated challenges for broadcast-multicast communications in a communication system
US7620179B2 (en) 2004-01-29 2009-11-17 Comcast Cable Holdings, Llc System and method for security processing media streams
US20060031873A1 (en) 2004-08-09 2006-02-09 Comcast Cable Holdings, Llc System and method for reduced hierarchy key management
US8099369B2 (en) 2004-12-08 2012-01-17 Ngna, Llc Method and system for securing content in media systems
US7383438B2 (en) 2004-12-18 2008-06-03 Comcast Cable Holdings, Llc System and method for secure conditional access download and reconfiguration
KR100784688B1 (ko) * 2005-01-26 2007-12-12 한국전자통신연구원 독립 인증 수단을 가지는 콘텐츠 실행 디바이스 콘텐츠 실행 방법 및 콘텐츠 재배포 방법
US7933410B2 (en) 2005-02-16 2011-04-26 Comcast Cable Holdings, Llc System and method for a variable key ladder
KR100648456B1 (ko) 2005-09-30 2006-11-24 에스케이 텔레콤주식회사 미들웨어를 장착한 복합 단말기의 상품 구매 시스템 및 그방법
US20070239605A1 (en) * 2006-04-06 2007-10-11 Peter Munguia Supporting multiple key ladders using a common private key set
US20080019517A1 (en) * 2006-04-06 2008-01-24 Peter Munguia Control work key store for multiple data streams
WO2008048255A1 (en) * 2006-10-16 2008-04-24 Toptrend Global Technologies, Inc. Dual display apparatus and methodology for broadcast, cable television and iptv
CN101212642B (zh) * 2006-12-25 2012-06-27 北京握奇数据系统有限公司 一种广播信号处理方法、系统及接收终端
CN101056393B (zh) * 2007-04-20 2010-06-16 中兴通讯股份有限公司 数据解扰方法和系统
US7934083B2 (en) 2007-09-14 2011-04-26 Kevin Norman Taylor Configurable access kernel
SE0950806A1 (sv) * 2009-10-29 2011-04-30 Cryptoguard Ab Förfarande och digitaltelevisionsystem
GB2489672A (en) * 2011-03-28 2012-10-10 Sony Corp Authentication certificate distribution to set top boxes
US20130139198A1 (en) * 2011-11-29 2013-05-30 General Instrument Corporation Digital transport adapter regionalization
KR20130083948A (ko) * 2012-01-16 2013-07-24 삼성전자주식회사 영상처리장치 및 그 제어방법
WO2021051002A1 (en) 2019-09-12 2021-03-18 Intertrust Technologies Corporation Dynamic broadcast content access management systems and methods

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
WO1999007147A1 (en) * 1997-08-01 1999-02-11 Scientific-Atlanta, Inc. Method and apparatus for geographically limiting service in a conditional access system
WO1999007151A1 (en) * 1997-08-01 1999-02-11 Scientific-Atlanta, Inc. Mechanism and apparatus for encapsulation of entitlement authorization in conditional access system
WO2000057636A1 (en) * 1999-03-24 2000-09-28 Microsoft Corporation Enhancing smart card usage for associating media content with households

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
WO1999007147A1 (en) * 1997-08-01 1999-02-11 Scientific-Atlanta, Inc. Method and apparatus for geographically limiting service in a conditional access system
WO1999007151A1 (en) * 1997-08-01 1999-02-11 Scientific-Atlanta, Inc. Mechanism and apparatus for encapsulation of entitlement authorization in conditional access system
WO2000057636A1 (en) * 1999-03-24 2000-09-28 Microsoft Corporation Enhancing smart card usage for associating media content with households

Also Published As

Publication number Publication date
JP2005510137A (ja) 2005-04-14
CN1550100A (zh) 2004-11-24
IL160542A0 (en) 2004-07-25
KR20040037133A (ko) 2004-05-04
EP1483900A1 (de) 2004-12-08
MXPA04002726A (es) 2005-10-05
WO2003043310A1 (en) 2003-05-22
BR0117132A (pt) 2004-10-13

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SE01 Entry into force of request for substantive examination
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C19 Lapse of patent right due to non-payment of the annual fee
CF01 Termination of patent right due to non-payment of annual fee