ATE232668T1 - Verfahren zur erkennung eines modifizierten farbburstsignals zur kopierverhinderung eines videoprogramms - Google Patents

Verfahren zur erkennung eines modifizierten farbburstsignals zur kopierverhinderung eines videoprogramms

Info

Publication number
ATE232668T1
ATE232668T1 AT98915157T AT98915157T ATE232668T1 AT E232668 T1 ATE232668 T1 AT E232668T1 AT 98915157 T AT98915157 T AT 98915157T AT 98915157 T AT98915157 T AT 98915157T AT E232668 T1 ATE232668 T1 AT E232668T1
Authority
AT
Austria
Prior art keywords
modified
video signal
color burst
recorder
signal
Prior art date
Application number
AT98915157T
Other languages
English (en)
Inventor
Gerow D Brill
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
Application granted granted Critical
Publication of ATE232668T1 publication Critical patent/ATE232668T1/de

Links

Classifications

    • 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
    • H04N2005/91357—Television signal processing therefor for scrambling ; for copy protection by modifying the video signal
    • H04N2005/91371—Television signal processing therefor for scrambling ; for copy protection by modifying the video signal the video color burst signal being modified

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Processing Of Color Television Signals (AREA)
  • Television Signal Processing For Recording (AREA)
  • Color Television Systems (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
AT98915157T 1997-03-21 1998-03-20 Verfahren zur erkennung eines modifizierten farbburstsignals zur kopierverhinderung eines videoprogramms ATE232668T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US4083297P 1997-03-21 1997-03-21
PCT/US1998/005798 WO1998043420A1 (en) 1997-03-21 1998-03-20 Method and apparatus for detecting modified color burst signals to prevent the copying of a video program

Publications (1)

Publication Number Publication Date
ATE232668T1 true ATE232668T1 (de) 2003-02-15

Family

ID=21913216

Family Applications (1)

Application Number Title Priority Date Filing Date
AT98915157T ATE232668T1 (de) 1997-03-21 1998-03-20 Verfahren zur erkennung eines modifizierten farbburstsignals zur kopierverhinderung eines videoprogramms

Country Status (12)

Country Link
EP (1) EP0970581B1 (de)
JP (1) JP4171789B2 (de)
KR (1) KR100531968B1 (de)
CN (1) CN1132420C (de)
AT (1) ATE232668T1 (de)
AU (1) AU720847B2 (de)
CA (1) CA2283849C (de)
DE (1) DE69811349T2 (de)
DK (1) DK0970581T3 (de)
ES (1) ES2192766T3 (de)
PT (1) PT970581E (de)
WO (1) WO1998043420A1 (de)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4626890A (en) * 1984-07-03 1986-12-02 Macrovision Method and apparatus for removing phase modulation from the color burst
KR930008167B1 (ko) * 1986-08-11 1993-08-26 매크로비젼 코포레이션 비데오 레코더의 비데오 디스에이블링 회로를 이용하여 비데오 프로그램의 복사를 방지하는 방법 및 장치
DE69616044T2 (de) * 1995-05-09 2002-08-01 Macrovision Corp., Sunnyvale Verfahren und anlage zum beseitigen der folgen der veränderung des farbburstsignals in einem fernsehsignal
PT1152611E (pt) * 1996-01-16 2003-09-30 Macrovision Corp Aparelho para melhorar os efeitos das modificacoes de sincronizacao de cor para um sinal de video

Also Published As

Publication number Publication date
DE69811349D1 (de) 2003-03-20
CN1251239A (zh) 2000-04-19
WO1998043420A1 (en) 1998-10-01
EP0970581A1 (de) 2000-01-12
DK0970581T3 (da) 2003-05-19
AU720847B2 (en) 2000-06-15
PT970581E (pt) 2003-06-30
EP0970581B1 (de) 2003-02-12
JP2001518270A (ja) 2001-10-09
CA2283849C (en) 2002-12-10
HK1024368A1 (en) 2000-10-05
CA2283849A1 (en) 1998-10-01
KR100531968B1 (ko) 2005-11-30
AU6940798A (en) 1998-10-20
KR20010005575A (ko) 2001-01-15
ES2192766T3 (es) 2003-10-16
CN1132420C (zh) 2003-12-24
DE69811349T2 (de) 2003-08-28
JP4171789B2 (ja) 2008-10-29

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