BR9810971A - Aparelho de acesso condicional para fornecer a um receptor acesso condicional a informações recebidas no receptor - Google Patents

Aparelho de acesso condicional para fornecer a um receptor acesso condicional a informações recebidas no receptor

Info

Publication number
BR9810971A
BR9810971A BR9810971-5A BR9810971A BR9810971A BR 9810971 A BR9810971 A BR 9810971A BR 9810971 A BR9810971 A BR 9810971A BR 9810971 A BR9810971 A BR 9810971A
Authority
BR
Brazil
Prior art keywords
conditional access
receiver
instances
cable television
television system
Prior art date
Application number
BR9810971-5A
Other languages
English (en)
Inventor
Anthony J Wasilewski
Glendon L Akins Iii
Robert O Banker
Howard G Pinder
Original Assignee
Scientific Atlanta
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 Scientific Atlanta filed Critical Scientific Atlanta
Publication of BR9810971A publication Critical patent/BR9810971A/pt

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
    • H04L63/0428—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
    • H04L63/0442—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload wherein the sending and receiving network entities apply asymmetric encryption, i.e. different keys for encryption and decryption
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
    • H04L63/0428—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
    • H04L63/045—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload wherein the sending and receiving network entities apply hybrid encryption, i.e. combination of symmetric and asymmetric encryption
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/06—Network architectures or network communication protocols for network security for supporting key management in a packet data network
    • H04L63/062—Network architectures or network communication protocols for network security for supporting key management in a packet data network for key distribution, e.g. centrally by trusted party
    • 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
    • H04N21/21—Server components or server architectures
    • H04N21/226—Characteristics of the server or Internal components of the server
    • H04N21/2265—Server identification by a unique number or address, e.g. serial number
    • 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]
    • H04N21/40—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
    • H04N21/4524—Management of client data or end-user data involving the geographical location of the client
    • 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
    • H04N21/633—Control signals issued by server directed to the network components or client
    • H04N21/6332—Control signals issued by server directed to the network components or client directed to client
    • H04N21/6334—Control signals issued by server directed to the network components or client directed to client for authorisation, e.g. by transmitting a key
    • H04N21/63345—Control signals issued by server directed to the network components or client directed to client for authorisation, e.g. by transmitting a key by transmitting keys
    • 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)
  • Computer Security & Cryptography (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Computer Hardware Design (AREA)
  • Computing Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Databases & Information Systems (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

"APARELHO DE ACESSO CONDICIONAL PARA FORNECER A UM RECEPTOR ACESSO CONDICIONAL A INFORMAçõES RECEBIDAS NO RECEPTOR". Um sistema de televisão a cabo provê acesso condicional a serviços. O sistema de televisão a cabo inclui um extremo de cabeça do qual "instâncias" de serviço, ou programas, são difundidos e uma pluralidade de unidades set top para receber as instâncias e seletivamente decriptografar as instâncias para exibição para assinantes do sistema. As instâncias de serviço são criptografadas utilizando chaves pública e/ou privada fornecidas pelos provedores de serviço ou agentes de autorização central. As chaves utilizadas pelos set tops para decriptografia seletiva também podem ser de natureza pública ou privada, e tais chaves podem ser reatribuí-las em tempos diferentes para fornecer um sistema de televisão a cabo no qual as preocupações com pirataria são minimizadas.
BR9810971-5A 1997-08-01 1998-07-31 Aparelho de acesso condicional para fornecer a um receptor acesso condicional a informações recebidas no receptor BR9810971A (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US5457597P 1997-08-01 1997-08-01
US12735298A 1998-07-31 1998-07-31
PCT/US1998/016028 WO1999007148A1 (en) 1997-08-01 1998-07-31 Authorization of services in a conditional access system

Publications (1)

Publication Number Publication Date
BR9810971A true BR9810971A (pt) 2004-04-13

Family

ID=26733216

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9810971-5A BR9810971A (pt) 1997-08-01 1998-07-31 Aparelho de acesso condicional para fornecer a um receptor acesso condicional a informações recebidas no receptor

Country Status (6)

Country Link
EP (1) EP1000508B1 (pt)
JP (4) JP2003521818A (pt)
AU (1) AU8823398A (pt)
BR (1) BR9810971A (pt)
DE (1) DE69802288T2 (pt)
WO (1) WO1999007148A1 (pt)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1056255A3 (en) * 1999-05-27 2003-10-29 Lucent Technologies Inc. System and method for location-dependent message access
US20010013121A1 (en) * 1999-11-12 2001-08-09 Kimball Bridget D. Authorization conditioned object message download
EP1182874A1 (en) 2000-08-24 2002-02-27 Canal+ Technologies Société Anonyme Digital content protection system
FR2823039B1 (fr) * 2001-03-30 2003-08-01 Canal Plus Technologies Systeme et procede de transmission d'informations chiffrees a cle chiffree
EP1524659A1 (en) * 2003-10-13 2005-04-20 Deutsche Thomson-Brandt Gmbh Method and apparatus for decrypting an encrypted supplementary data set
EP2040411B1 (en) * 2006-07-27 2017-01-18 Intertrust Technologies Corporation Terminal device, server device, and content distribution system
KR101552958B1 (ko) * 2009-10-30 2015-09-14 주식회사 케이티 수신 제한 시스템을 이용하는 화상 회의 서비스 시스템 및 방법
US8621046B2 (en) 2009-12-26 2013-12-31 Intel Corporation Offline advertising services
US8429685B2 (en) 2010-07-09 2013-04-23 Intel Corporation System and method for privacy-preserving advertisement selection
EP2749036B1 (en) 2011-08-25 2018-06-13 Intel Corporation System and method and computer program product for human presence detection based on audio
JP6108952B2 (ja) * 2013-05-18 2017-04-05 日本放送協会 送信システム及び受信装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS626589A (ja) * 1985-07-02 1987-01-13 Alps Electric Co Ltd Ｃａｔｖコンバ−タ−
JP2579064B2 (ja) * 1990-11-29 1997-02-05 松下電器産業株式会社 スクランブル制御方法及びその装置
US5585866A (en) * 1993-09-09 1996-12-17 Miller; Larry Electronic television program guide schedule system and method including virtual channels
US5619501A (en) * 1994-04-22 1997-04-08 Thomson Consumer Electronics, Inc. Conditional access filter as for a packet video signal inverse transport system
BR9510128A (pt) * 1994-12-30 1997-12-30 Thomson Consumer Electronics Modem com provisões de chamada de retorno automática
FR2729521A1 (fr) * 1995-01-17 1996-07-19 Thomson Consumer Electronics Procede de protection des messages de gestion d'un systeme de controle d'acces et dispositif pour sa mise en oeuvre
US5680458A (en) * 1995-11-14 1997-10-21 Microsoft Corporation Root key compromise recovery
WO1997024832A1 (en) * 1995-12-29 1997-07-10 Scientific-Atlanta, Inc. Method and apparatus for providing conditional access in connection-oriented, interactive networks with a multiplicity of service providers

Also Published As

Publication number Publication date
DE69802288T2 (de) 2002-06-27
DE69802288D1 (de) 2001-12-06
EP1000508A1 (en) 2000-05-17
JP2006333531A (ja) 2006-12-07
AU8823398A (en) 1999-02-22
EP1000508B1 (en) 2001-10-31
WO1999007148A1 (en) 1999-02-11
JP2009273151A (ja) 2009-11-19
JP2003521818A (ja) 2003-07-15
JP2005341606A (ja) 2005-12-08

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Legal Events

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B08F Application fees: dismissal - article 86 of industrial property law

Free format text: REFERENTE A 5A,6A,7AE 8A ANUIDADES.

B08K Lapse as no evidence of payment of the annual fee has been furnished to inpi (acc. art. 87)

Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 1890 DE 27/03/2007.