BR0117132A - Ca system for broadcast dtv using multiple keys for different service providers and service areas - Google Patents

Ca system for broadcast dtv using multiple keys for different service providers and service areas

Info

Publication number
BR0117132A
BR0117132A BR0117132-1A BR0117132A BR0117132A BR 0117132 A BR0117132 A BR 0117132A BR 0117132 A BR0117132 A BR 0117132A BR 0117132 A BR0117132 A BR 0117132A
Authority
BR
Brazil
Prior art keywords
service providers
broadcast
service
keys
different
Prior art date
Application number
BR0117132-1A
Other languages
Portuguese (pt)
Inventor
Ahmet Mursit Eskicioglu
David Jay Duffield
Billy Wesley Beyers
Michael Scott Deiss
David Emery Virag
Original Assignee
Thomson Licensing Sa
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 Thomson Licensing Sa filed Critical Thomson Licensing Sa
Publication of BR0117132A publication Critical patent/BR0117132A/en

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
    • H04N21/41—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
    • 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
    • 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, rendering scenes according to MPEG-4 scene graphs
    • H04N21/4405—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 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

Abstract

"SISTEMA CA PARA DTV DE DIFUSãO UTILIZANDO MúLTIPLAS TECLAS PARA DIFERENTES PROVEDORES DE SERVIçO E áREAS DE SERVIçO". Um método de gerenciamento de acesso a eventos difundidos e transmitidos criptografados recebidos de uma variedade de provedores de serviço (incluindo redes de televisão de difusão, redes de televisão a cabo, sistemas via satélite digital) . Em uma modalidade preferida, cada provedor de serviço emprega uma chave pública diferente para criptografar a mensagem de informação de acesso, e cada cartão inteligente inclui as chaves privadas correspondentes para as chaves públicas, permitindo assim que um usuário acesse eventos de vários provedores de serviço sem mudar o cartão inteligente."AC DTV DIFFUSION SYSTEM USING MULTIPLE KEYS FOR DIFFERENT SERVICE PROVIDERS AND SERVICE AREAS". A method of managing access to encrypted broadcast and broadcast events received from a variety of service providers (including broadcast television networks, cable television networks, digital satellite systems). In a preferred embodiment, each service provider employs a different public key to encrypt the access information message, and each smart card includes the corresponding private keys for the public keys, thus allowing a user to access events from multiple service providers without Change the smart card.

BR0117132-1A 2001-09-25 2001-09-25 Ca system for broadcast dtv using multiple keys for different service providers and service areas BR0117132A (en)

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 (1)

Publication Number Publication Date
BR0117132A true BR0117132A (en) 2004-10-13

Family

ID=21742859

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0117132-1A BR0117132A (en) 2001-09-25 2001-09-25 Ca system for broadcast dtv using multiple keys for different service providers and service areas

Country Status (8)

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

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
KR101123598B1 (en) * 2003-07-08 2012-03-20 퀄컴 인코포레이티드 Method and apparatus for security in a data processing system
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 (en) * 2005-01-26 2007-12-12 한국전자통신연구원 Contents Execution Device equipped with Independent Authentication Means and Contents Re-Distribution Method
US7933410B2 (en) 2005-02-16 2011-04-26 Comcast Cable Holdings, Llc System and method for a variable key ladder
KR100648456B1 (en) 2005-09-30 2006-11-24 에스케이 텔레콤주식회사 Purchasing system of complex terminal equipped with middleware and method thereof
US20080019517A1 (en) * 2006-04-06 2008-01-24 Peter Munguia Control work key store for multiple data streams
US20070239605A1 (en) * 2006-04-06 2007-10-11 Peter Munguia Supporting multiple key ladders using a common private key set
WO2008048255A1 (en) * 2006-10-16 2008-04-24 Toptrend Global Technologies, Inc. Dual display apparatus and methodology for broadcast, cable television and iptv
CN101212642B (en) * 2006-12-25 2012-06-27 北京握奇数据系统有限公司 Broadcast signal processing method, system, and receiver
CN101056393B (en) * 2007-04-20 2010-06-16 中兴通讯股份有限公司 Data de-scrambling method and system
US7934083B2 (en) 2007-09-14 2011-04-26 Kevin Norman Taylor Configurable access kernel
SE0950806A1 (en) * 2009-10-29 2011-04-30 Cryptoguard Ab Procedure and digital television system
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 (en) * 2012-01-16 2013-07-24 삼성전자주식회사 Image processing apparatus and control method thereof
US11349640B2 (en) 2019-09-12 2022-05-31 Intertrust Technologies Corporation Dynamic broadcast content access management systems and methods

Family Cites Families (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
EP1010325A1 (en) * 1997-08-01 2000-06-21 Scientific-Atlanta, Inc. Method and apparatus for geographically limiting service in a conditional access system
AU8759798A (en) * 1997-08-01 1999-02-22 Scientific-Atlanta, Inc. Mechanism and apparatus for encapsulation of entitlement authorization in conditional access system
AU4025900A (en) * 1999-03-24 2000-10-09 Microsoft Corporation Enhancing smart card usage for associating media content with households

Also Published As

Publication number Publication date
CN1550100A (en) 2004-11-24
MXPA04002726A (en) 2005-10-05
EP1483900A1 (en) 2004-12-08
IL160542A0 (en) 2004-07-25
WO2003043310A1 (en) 2003-05-22
CN1310497C (en) 2007-04-11
JP2005510137A (en) 2005-04-14
KR20040037133A (en) 2004-05-04

Similar Documents

Publication Publication Date Title
BR0117132A (en) Ca system for broadcast dtv using multiple keys for different service providers and service areas
US5727065A (en) Deferred billing, broadcast, electronic document distribution system and method
BR0206590A (en) System for distributing content to a subscriber terminal on demand over a communication network, method for distributing content from one or more subscriber cable systems within cable systems, system for distributing first and second content to a subscriber terminal on-demand over a communication network, method using a cryptographic renewal system, and method for distributing pre-encrypted content to subscribers from first and second communication systems
TW200509637A (en) Method to create and manage a local network
MY137892A (en) Method and device for securing content delivery over a network
AU2002216066A1 (en) Secure location-based services system and method
WO2001076245A3 (en) System for providing alternative services
YU49340B (en) Mechanism for matching a receiver with a security module
FI981132A (en) Preventing unauthorized use of the Service
IL140787A0 (en) Method and apparatus for secure communication of information between a plurality of digital audiovisual devices
EP0973299A3 (en) Fleet management using mobile stations and wireless data networks
DE60014157D1 (en) METHOD AND DEVICE FOR SELECTIVE ENCRYPTION AND DECREXING OF POINT-TO-MULTI-POINT MESSAGES
EP1308865A4 (en) Broadcast using method, receiver, mobile terminal, and service providing device
HK1113446A1 (en) Method for managing digital rights in broadcast/multicast service
TW200822708A (en) Storage and use method of a broadcasted audio/video event
GB0502888D0 (en) Key delivery method and apparatus in a communications system
EP1467533A3 (en) Home device authentication system and method
NO20003651D0 (en) Procedure and arrangement for disseminating a private message to selected participants
RU2006103630A (en) METHOD AND DEVICE FOR PROTECTION IN DATA PROCESSING SYSTEM
KR100975386B1 (en) Method and system for protecting broadcasting service/content in a mobile broadcast system, and method for generating a short term key message thereof
WO2005065165A3 (en) Method and system for distributing services in a digital asset environment
GB0024637D0 (en) Mobile service request system
EP1087566A3 (en) Apparatus and method for distributing management keys in a multicast domain
WO2001091465A3 (en) Secure digital content delivery system and method over a broadcast network
WO2010050729A2 (en) Method and apparatus for acquiring encryption key to provide pay channel

Legal Events

Date Code Title Description
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: CONFORME ARTIGO 10O DA RESOLUCAO 124/06, CABE SER ARQUIVADO REFERENTE AO NAO RECOLHIMENTO DA 8A, 9AE 10A ANUIDADES.

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 2144 DE 07/02/2012.