ES2087901T3 - Sistema para la transmision y recepcion de señales de television. - Google Patents

Sistema para la transmision y recepcion de señales de television.

Info

Publication number
ES2087901T3
ES2087901T3 ES90830005T ES90830005T ES2087901T3 ES 2087901 T3 ES2087901 T3 ES 2087901T3 ES 90830005 T ES90830005 T ES 90830005T ES 90830005 T ES90830005 T ES 90830005T ES 2087901 T3 ES2087901 T3 ES 2087901T3
Authority
ES
Spain
Prior art keywords
card
secret code
transmission
decoder
reception
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
ES90830005T
Other languages
English (en)
Inventor
Giuseppe Zappala
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.)
Edico SRL
Original Assignee
Edico SRL
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 Edico SRL filed Critical Edico SRL
Application granted granted Critical
Publication of ES2087901T3 publication Critical patent/ES2087901T3/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
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
    • H04N21/81—Monomedia components thereof
    • H04N21/812—Monomedia components thereof involving advertisement data
    • 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
    • H04N21/458—Scheduling content for creating a personalised stream, e.g. by combining a locally stored advertisement with an incoming stream; Updating operations, e.g. for OS modules ; time-related management operations
    • 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)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Business, Economics & Management (AREA)
  • Marketing (AREA)
  • Databases & Information Systems (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)

Abstract

LA PRESENTE INVENCION SE REFIERE A UN SISTEMA PARA LA TRANSMISION Y RECEPCION DE SEÑALES DE TELEVISION CODIFICADAS DE TAL MODO QUE NO PUEDEN SER REPRODUCIDAS NORMALMENTE POR RECEPTORES DE TELEVISION CORRIENTES SI NO UNICAMENTE POR AQUELLOS APARATOS PROVISTOS DE DECODIFICADORES ESPECIALES (D) QUE PUEDEN SER ACTIVADOS POR MEDIO DE UNA TARJETA DETERMINADA (CC); LA PRINCIPAL CARACTERISTICA DE LA INVENCION CONSISTE EN LA MENCIONADA TARJETA (CC) QUE CONTIENE UNICAMENTE UN ELEMENTO PARA MEMORIZAR LOS DATOS, Y QUE EN DICHO ELEMENTO HAY UN CODIGO SECRETO MEMORIZADO (CS), QUE ES NECESARIO PARA ACTIVAR EL DECODIFICADOR (D). TAMBIEN OFRECE EL SISTEMA LA POSIBILIDAD DE OBSERVAR MULTIPLES TRANSMISIONES Y QUE ASI MISMO EL DECODIFICADOR LEE EL CODIGO SECRETO (CS) GRABADO EN EL ELEMENTO DE LA DICHA TARJETA (CC) COMPARANDOLO CON EL CODIGO SECRETO CONTENIDO EN LA TRANSMISION RECIBIDA, Y EN CASO DE COINCIDENCIA DE DOS CODIGOS IMPULSA LA DE CODIFICACION Y VISUALIZACION DE LA TRANSMISION. EN CUALQUIER ELECCION DEL SISTEMA PREFERIDO, EL DECODIFICADOR CONTIENE MEDIOS PARA ACTIVAR AUTOMATICAMENTE UN VIDEOGRABADOR ACOPLADO DE MODO QUE LAS TRANSMISIONES SEAN GRABADAS CON EL CODIGO SECRETO CORRESPONDIENTE AL GRABADO EN LA TARJETA.
ES90830005T 1990-01-03 1990-01-03 Sistema para la transmision y recepcion de señales de television. Expired - Lifetime ES2087901T3 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP90830005A EP0436472B1 (en) 1990-01-03 1990-01-03 System for transmitting and receiving television signals
HK98105999A HK1006904A1 (en) 1990-01-03 1998-06-22 System for transmitting and receiving television signals

Publications (1)

Publication Number Publication Date
ES2087901T3 true ES2087901T3 (es) 1996-08-01

Family

ID=26127862

Family Applications (1)

Application Number Title Priority Date Filing Date
ES90830005T Expired - Lifetime ES2087901T3 (es) 1990-01-03 1990-01-03 Sistema para la transmision y recepcion de señales de television.

Country Status (4)

Country Link
EP (1) EP0436472B1 (es)
DE (1) DE69027195T2 (es)
ES (1) ES2087901T3 (es)
HK (1) HK1006904A1 (es)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4120635A1 (de) * 1991-06-22 1992-12-24 Grundig Emv Vorrichtung zur programmierung eines videorecorders
EP0606287B1 (en) * 1991-10-03 1999-02-24 THOMSON multimedia Method for customizing a device with a smart card
US5835864A (en) * 1991-10-03 1998-11-10 Thomson Consumer Electronics S.A. Method and apparatus for customizing a device with a smart card
US5311302A (en) * 1992-07-02 1994-05-10 Hughes Aircraft Company Entertainment and data management system for passenger vehicle including individual seat interactive video terminals
FR2703552A1 (fr) * 1993-03-31 1994-10-07 Philips Electronics Nv Procédé et dispositif pour l'embrouillage et le désembrouillage d'une émission déterminée de télévision.
GB2326503A (en) * 1997-05-31 1998-12-23 Thomas Dolby James T.V. licensing system

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4531020A (en) * 1982-07-23 1985-07-23 Oak Industries Inc. Multi-layer encryption system for the broadcast of encrypted information
JPS59157858A (ja) * 1983-02-28 1984-09-07 Sony Corp 記録装置
WO1985000718A1 (en) * 1983-07-22 1985-02-14 Independent Broadcasting Authority Security system for television signal encryption
DE3802612C1 (en) * 1988-01-29 1989-08-17 Prof. Dr. Bruckschen & Partner Gmbh, 4130 Moers, De System for charging for television programmes and the like

Also Published As

Publication number Publication date
HK1006904A1 (en) 1999-03-19
EP0436472B1 (en) 1996-05-29
DE69027195D1 (de) 1996-07-04
EP0436472A1 (en) 1991-07-10
DE69027195T2 (de) 1996-10-02

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