MX9700577A - Aparato y metodo de amplia proteccion contra copiado para plataformas de video y material fuente no protegido. - Google Patents

Aparato y metodo de amplia proteccion contra copiado para plataformas de video y material fuente no protegido.

Info

Publication number
MX9700577A
MX9700577A MX9700577A MX9700577A MX9700577A MX 9700577 A MX9700577 A MX 9700577A MX 9700577 A MX9700577 A MX 9700577A MX 9700577 A MX9700577 A MX 9700577A MX 9700577 A MX9700577 A MX 9700577A
Authority
MX
Mexico
Prior art keywords
copy protection
input
digital
video
signature
Prior art date
Application number
MX9700577A
Other languages
English (en)
Inventor
John O Ryan
Original Assignee
Macrovision 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 Macrovision Corp filed Critical Macrovision Corp
Publication of MX9700577A publication Critical patent/MX9700577A/es

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • 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
    • H04N21/83—Generation or processing of protective or descriptive data associated with content; Content structuring
    • H04N21/835—Generation of protective data, e.g. certificates
    • H04N21/8358—Generation of protective data, e.g. certificates involving watermark
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/91—Television signal processing therefor
    • H04N5/913—Television signal processing therefor for scrambling ; for copy protection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/91—Television signal processing therefor
    • H04N5/913—Television signal processing therefor for scrambling ; for copy protection
    • H04N2005/91307—Television signal processing therefor for scrambling ; for copy protection by adding a copy protection signal to the video signal
    • H04N2005/91321—Television signal processing therefor for scrambling ; for copy protection by adding a copy protection signal to the video signal the copy protection signal being a copy protection control signal, e.g. a record inhibit signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/91—Television signal processing therefor
    • H04N5/913—Television signal processing therefor for scrambling ; for copy protection
    • H04N2005/91307—Television signal processing therefor for scrambling ; for copy protection by adding a copy protection signal to the video signal
    • H04N2005/91328—Television signal processing therefor for scrambling ; for copy protection by adding a copy protection signal to the video signal the copy protection signal being a copy management signal, e.g. a copy generation management signal [CGMS]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/91—Television signal processing therefor
    • H04N5/913—Television signal processing therefor for scrambling ; for copy protection
    • H04N2005/91307—Television signal processing therefor for scrambling ; for copy protection by adding a copy protection signal to the video signal
    • H04N2005/91342—Television signal processing therefor for scrambling ; for copy protection by adding a copy protection signal to the video signal the copy protection signal being an authentication signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/91—Television signal processing therefor
    • H04N5/913—Television signal processing therefor for scrambling ; for copy protection
    • H04N2005/91357—Television signal processing therefor for scrambling ; for copy protection by modifying the video signal
    • H04N2005/91364—Television signal processing therefor for scrambling ; for copy protection by modifying the video signal the video signal being scrambled

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computer Security & Cryptography (AREA)
  • Television Signal Processing For Recording (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
  • Facsimile Transmission Control (AREA)

Abstract

Una plataforma de videograbacion evita el copiado tanto digital como analogico del material protegido contra copiado. La plataforma puede introducir y emitir señales de video tanto analogicas como digitales. En la entrada analogica, un detecto (26) detecta la proteccion contra el copiado convencional en el video de entrada analogica y, en respuesta desactiva la grabacion del mismo. En la entrada digital, un primer detector (20) detecta una rubrica de derechos de autor presente en el material de entrada y en respuesta evita la grabacion. Una grabadora de video especialmente adaptada, un dispositivo de reproduccion (10, 100) o un aparato decodificador protege contra el copiado al material fuente de video que tiene una rubrica de derechos de autor. Una rubrica de derechos de autor se suministra en una ubicacion predeterminada en la señal de video que será protegida. La grabadora de video, el dispositivo de reproduccion (10 100) o el aparato decodificador, con la deteccion de la rubrica de derechos de autor en su entrada o en la reproduccion, modifica la señal de video estándar de salida (NTSC) con un proceso de proteccion contra el copiado convencional y la salida digital con una nueva rubrica de derechos de autor. La señal digital de entrada puede contener una mezcla de la señal de video digital además de la rubrica de proteccion contra el copiado. Además, a la señal de video digital puede añadirse una rubrica de autenticacion y detectarse como parte del proceso de proteccion contra el copiado. Como parte de la proteccion contra el copiado, un receptor de television incluye un sistema de proteccion contra el copiado y de eliminacion de mezclado.
MX9700577A 1994-07-25 1995-07-12 Aparato y metodo de amplia proteccion contra copiado para plataformas de video y material fuente no protegido. MX9700577A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/279,542 US5574787A (en) 1994-07-25 1994-07-25 Apparatus and method for comprehensive copy protection for video platforms and unprotected source material
PCT/US1995/008843 WO1996003835A2 (en) 1994-07-25 1995-07-12 Apparatus and method for comprehensive copy protection for video platforms and unprotected source material

Publications (1)

Publication Number Publication Date
MX9700577A true MX9700577A (es) 1997-12-31

Family

ID=23069434

Family Applications (1)

Application Number Title Priority Date Filing Date
MX9700577A MX9700577A (es) 1994-07-25 1995-07-12 Aparato y metodo de amplia proteccion contra copiado para plataformas de video y material fuente no protegido.

Country Status (15)

Country Link
US (1) US5574787A (es)
EP (1) EP0775418B1 (es)
JP (1) JP3217068B2 (es)
KR (1) KR100372598B1 (es)
CN (1) CN1122411C (es)
AT (1) ATE193630T1 (es)
AU (1) AU697727B2 (es)
BR (1) BR9508340A (es)
CA (1) CA2195939C (es)
DE (1) DE69517324T2 (es)
DK (1) DK0775418T3 (es)
HK (1) HK1001301A1 (es)
MX (1) MX9700577A (es)
NZ (1) NZ290521A (es)
WO (1) WO1996003835A2 (es)

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AU697727B2 (en) 1998-10-15
EP0775418A2 (en) 1997-05-28
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WO1996003835A2 (en) 1996-02-08
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ATE193630T1 (de) 2000-06-15
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CN1159272A (zh) 1997-09-10
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CN1122411C (zh) 2003-09-24
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HK1001301A1 (en) 1998-06-12
JP3217068B2 (ja) 2001-10-09

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