ES2123243T3 - Disposicion de la informacion con acceso condicional. - Google Patents

Disposicion de la informacion con acceso condicional.

Info

Publication number
ES2123243T3
ES2123243T3 ES95914142T ES95914142T ES2123243T3 ES 2123243 T3 ES2123243 T3 ES 2123243T3 ES 95914142 T ES95914142 T ES 95914142T ES 95914142 T ES95914142 T ES 95914142T ES 2123243 T3 ES2123243 T3 ES 2123243T3
Authority
ES
Spain
Prior art keywords
conditional access
authorization data
code word
access code
allowed
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 - Lifetime
Application number
ES95914142T
Other languages
English (en)
Inventor
Gregory George Tamer
Michael Scott Deiss
John William Chaney
James Edwin Hailey
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.)
Technicolor USA Inc
Original Assignee
Thomson Consumer Electronics Inc
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 Consumer Electronics Inc filed Critical Thomson Consumer Electronics Inc
Application granted granted Critical
Publication of ES2123243T3 publication Critical patent/ES2123243T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • H04N21/426—Internal components of the client ; Characteristics thereof
    • H04N21/42607—Internal components of the client ; Characteristics thereof for processing the incoming bitstream
    • H04N21/42623—Internal components of the client ; Characteristics thereof for processing the incoming bitstream involving specific decryption arrangements
    • 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
    • H04N21/41—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
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/426—Internal components of the client ; Characteristics thereof
    • 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
    • H04N21/462—Content or additional data management e.g. creating a master electronic programme guide from data received from the Internet and a Head-end or controlling the complexity of a video stream by scaling the resolution or bit-rate based on the client capabilities
    • H04N21/4623—Processing of entitlement messages, e.g. ECM [Entitlement Control Message] or EMM [Entitlement Management Message]
    • 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
    • H04N7/162—Authorising the user terminal, e.g. by paying; Registering the use of a subscription channel, e.g. billing
    • H04N7/165—Centralised control of user terminal ; Registering at central
    • 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
    • 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)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Databases & Information Systems (AREA)
  • Computer Security & Cryptography (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Communication Control (AREA)
  • Television Systems (AREA)
  • Circuits Of Receivers In General (AREA)
  • Storage Device Security (AREA)

Abstract

UN APARATO EN UN RECEPTOR, PARA PROCESAR INFORMACION DE CONTROL DE AUTORIZACION TRANSMITIDA, INCLUYE UN PROCESADOR DE TRANSPORTE DE PAQUETE (13-15,19) PARA SELECCIONAR PAQUETES DE SEÑALES QUE TIENEN CARGAS QUE CONTIENEN UNA CABECERA DE CARGA DE ACCESO CONDICIONAL Y UNA CARGA REMANENTE DE DATOS DE AUTORIZACION. LAS RESPECTIVAS CABECERAS DE CARGA INCLUYEN GRUPOS DE BYTES QUE ESTAN CODIFICADOS DE TAL MANERA QUE PERMITEN O PROHIBEN QUE EL RECEPTOR RESPECTIVO PROCESE LOS DATOS DE AUTORIZACION. UN FILTRO DE ACCESO CONDICIONAL (30) PREPROGRAMADO CON UNA PALABRA DE CODIGO DE ACCESO CONDICIONAL ESPECIFICA DE ABONADO EXAMINA GRUPOS DE BYTES RESPECTIVOS DE LA CABECERA DE ACCESO CONDICIONAL PARA UNA ADAPTACION CON LA PALABRA DE CODIGO DE ACCESO CONDICIONAL ESPECIFICA DE ABONADO. SOLO SI SUCEDE UNA ADAPTACION, SE PERMITE QUE EL PROCESADOR PROCESE (17,18,21-24) LOS DATOS DE AUTORIZACION. LOS DATOS DE AUTORIZACION SON DESPUES UTILIZADOS PARA GENERAR (31) CLAVES DE DESCRIPCION PARA DESCODIFICAR (16) PARTESDE LA SEÑAL TRANSMITIDA.
ES95914142T 1994-04-22 1995-03-15 Disposicion de la informacion con acceso condicional. Expired - Lifetime ES2123243T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/232,794 US5619501A (en) 1994-04-22 1994-04-22 Conditional access filter as for a packet video signal inverse transport system

Publications (1)

Publication Number Publication Date
ES2123243T3 true ES2123243T3 (es) 1999-01-01

Family

ID=22874615

Family Applications (2)

Application Number Title Priority Date Filing Date
ES98400623T Expired - Lifetime ES2162397T3 (es) 1994-04-22 1995-03-15 Aparato y metodo para procesar paquetes de datos componentes de programas.
ES95914142T Expired - Lifetime ES2123243T3 (es) 1994-04-22 1995-03-15 Disposicion de la informacion con acceso condicional.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
ES98400623T Expired - Lifetime ES2162397T3 (es) 1994-04-22 1995-03-15 Aparato y metodo para procesar paquetes de datos componentes de programas.

Country Status (13)

Country Link
US (4) US5619501A (es)
EP (2) EP0756801B1 (es)
JP (26) JP4316008B2 (es)
KR (3) KR100400800B1 (es)
CN (3) CN1110200C (es)
CA (1) CA2188127C (es)
DE (1) DE69505369T2 (es)
ES (2) ES2162397T3 (es)
MX (1) MX9604992A (es)
MY (2) MY113950A (es)
SG (1) SG71707A1 (es)
TW (1) TW237582B (es)
WO (1) WO1995029560A1 (es)

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