DE199553T1 - Verfahren und vorrichtung zur verarbeitung eines videosignals um die herstellung von akzeptablen videobandaufnahmen davon zu verhindern. - Google Patents

Verfahren und vorrichtung zur verarbeitung eines videosignals um die herstellung von akzeptablen videobandaufnahmen davon zu verhindern.

Info

Publication number
DE199553T1
DE199553T1 DE198686302890T DE86302890T DE199553T1 DE 199553 T1 DE199553 T1 DE 199553T1 DE 198686302890 T DE198686302890 T DE 198686302890T DE 86302890 T DE86302890 T DE 86302890T DE 199553 T1 DE199553 T1 DE 199553T1
Authority
DE
Germany
Prior art keywords
video signal
pulses
pseudo
sync pulses
level
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.)
Pending
Application number
DE198686302890T
Other languages
English (en)
Inventor
John Oliver San Jose California 95129 Us Ryan
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.)
FARROW A VICTOR GUISERVILLE CALIF US
GWIZDALA GARY J TORRANCE CALIF US
RYAN JOHN OLIVER SAN JOSE CALIF US
Original Assignee
FARROW A VICTOR GUISERVILLE CALIF US
GWIZDALA GARY J TORRANCE CALIF US
RYAN JOHN OLIVER SAN JOSE CALIF US
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=24908568&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE199553(T1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by FARROW A VICTOR GUISERVILLE CALIF US, GWIZDALA GARY J TORRANCE CALIF US, RYAN JOHN OLIVER SAN JOSE CALIF US filed Critical FARROW A VICTOR GUISERVILLE CALIF US
Publication of DE199553T1 publication Critical patent/DE199553T1/de
Pending legal-status Critical Current

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
    • 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
    • H04N2005/91314—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 pulse signal inserted in blanking intervals of the video signal, e.g. pseudo-AGC pulses, pseudo-sync pulses
DE198686302890T 1985-04-17 1986-04-17 Verfahren und vorrichtung zur verarbeitung eines videosignals um die herstellung von akzeptablen videobandaufnahmen davon zu verhindern. Pending DE199553T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/724,006 US4631603A (en) 1985-04-17 1985-04-17 Method and apparatus for processing a video signal so as to prohibit the making of acceptable video tape recordings thereof

Publications (1)

Publication Number Publication Date
DE199553T1 true DE199553T1 (de) 1989-04-20

Family

ID=24908568

Family Applications (2)

Application Number Title Priority Date Filing Date
DE198686302890T Pending DE199553T1 (de) 1985-04-17 1986-04-17 Verfahren und vorrichtung zur verarbeitung eines videosignals um die herstellung von akzeptablen videobandaufnahmen davon zu verhindern.
DE8686302890T Expired - Lifetime DE3667580D1 (de) 1985-04-17 1986-04-17 Verfahren und vorrichtung zur verarbeitung eines videosignals um die herstellung von akzeptablen videobandaufnahmen davon zu verhindern.

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE8686302890T Expired - Lifetime DE3667580D1 (de) 1985-04-17 1986-04-17 Verfahren und vorrichtung zur verarbeitung eines videosignals um die herstellung von akzeptablen videobandaufnahmen davon zu verhindern.

Country Status (17)

Country Link
US (1) US4631603A (de)
EP (1) EP0199553B1 (de)
JP (1) JPS61288582A (de)
KR (1) KR930006529B1 (de)
CN (1) CN1004115B (de)
AT (1) ATE48732T1 (de)
AU (1) AU577011B2 (de)
CA (1) CA1256558A (de)
DE (2) DE199553T1 (de)
ES (1) ES8800477A1 (de)
HK (1) HK132993A (de)
IE (1) IE57319B1 (de)
IN (1) IN165570B (de)
MX (1) MX163608B (de)
NZ (1) NZ215693A (de)
PH (1) PH23758A (de)
ZA (1) ZA862491B (de)

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Also Published As

Publication number Publication date
MX163608B (es) 1992-06-05
HK132993A (en) 1993-12-10
JPS61288582A (ja) 1986-12-18
EP0199553B1 (de) 1989-12-13
ATE48732T1 (de) 1989-12-15
IN165570B (de) 1989-11-18
IE860992L (en) 1986-10-17
NZ215693A (en) 1989-01-06
AU577011B2 (en) 1988-09-08
KR930006529B1 (ko) 1993-07-16
EP0199553A3 (en) 1987-11-11
AU5607786A (en) 1986-10-23
KR860008685A (ko) 1986-11-17
CA1256558A (en) 1989-06-27
IE57319B1 (en) 1992-07-15
DE3667580D1 (de) 1990-01-18
PH23758A (en) 1989-11-03
ES554085A0 (es) 1987-10-16
EP0199553A2 (de) 1986-10-29
CN1004115B (zh) 1989-05-03
CN86102600A (zh) 1987-03-04
JPH0544235B2 (de) 1993-07-05
ES8800477A1 (es) 1987-10-16
ZA862491B (en) 1986-11-26
US4631603A (en) 1986-12-23

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