BR9508340A - Aparelho para reproduçao de material gravado digitalmente processo para impedir cópia de material gravado digitalmente gravador de video digital processo de proteçao contra cópia de material de video processo de visualizaçao de material de video protegido contra cópia para receber sinal de video protegido contra cópia - Google Patents

Aparelho para reproduçao de material gravado digitalmente processo para impedir cópia de material gravado digitalmente gravador de video digital processo de proteçao contra cópia de material de video processo de visualizaçao de material de video protegido contra cópia para receber sinal de video protegido contra cópia

Info

Publication number
BR9508340A
BR9508340A BR9508340A BR9508340A BR9508340A BR 9508340 A BR9508340 A BR 9508340A BR 9508340 A BR9508340 A BR 9508340A BR 9508340 A BR9508340 A BR 9508340A BR 9508340 A BR9508340 A BR 9508340A
Authority
BR
Brazil
Prior art keywords
copy
video
digital
input
copy protection
Prior art date
Application number
BR9508340A
Other languages
English (en)
Inventor
Gerow D Brill
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 BR9508340A publication Critical patent/BR9508340A/pt

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)
BR9508340A 1994-07-25 1995-07-12 Aparelho para reproduçao de material gravado digitalmente processo para impedir cópia de material gravado digitalmente gravador de video digital processo de proteçao contra cópia de material de video processo de visualizaçao de material de video protegido contra cópia para receber sinal de video protegido contra cópia BR9508340A (pt)

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
BR9508340A true BR9508340A (pt) 1997-09-09

Family

ID=23069434

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9508340A BR9508340A (pt) 1994-07-25 1995-07-12 Aparelho para reproduçao de material gravado digitalmente processo para impedir cópia de material gravado digitalmente gravador de video digital processo de proteçao contra cópia de material de video processo de visualizaçao de material de video protegido contra cópia para receber sinal de video protegido contra cópia

Country Status (15)

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

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CA2195939A1 (en) 1996-02-08
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JPH10503338A (ja) 1998-03-24
AU3127695A (en) 1996-02-22
WO1996003835A2 (en) 1996-02-08
EP0775418B1 (en) 2000-05-31
ATE193630T1 (de) 2000-06-15
WO1996003835A3 (en) 1996-04-04
CN1159272A (zh) 1997-09-10
JP3217068B2 (ja) 2001-10-09
KR970705138A (ko) 1997-09-06
EP0775418A2 (en) 1997-05-28
CN1122411C (zh) 2003-09-24
NZ290521A (en) 1998-10-28
US5574787A (en) 1996-11-12
HK1001301A1 (en) 1998-06-12
MX9700577A (es) 1997-12-31
DE69517324T2 (de) 2000-12-14
DK0775418T3 (da) 2000-11-13
AU697727B2 (en) 1998-10-15
KR100372598B1 (ko) 2003-05-16

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