IN165570B - - Google Patents

Info

Publication number
IN165570B
IN165570B IN279/CAL/86A IN279CA1986A IN165570B IN 165570 B IN165570 B IN 165570B IN 279CA1986 A IN279CA1986 A IN 279CA1986A IN 165570 B IN165570 B IN 165570B
Authority
IN
India
Prior art keywords
video signal
pulses
pseudo
sync pulses
level
Prior art date
Application number
IN279/CAL/86A
Other languages
English (en)
Inventor
John Oliver Ryan
Original Assignee
John Oliver Ryan
Farrow Armand Victor
Gwizdala Gary James
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=IN165570(B) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by John Oliver Ryan, Farrow Armand Victor, Gwizdala Gary James filed Critical John Oliver Ryan
Publication of IN165570B publication Critical patent/IN165570B/en

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Television Signal Processing For Recording (AREA)
  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Management Or Editing Of Information On Record Carriers (AREA)
  • Television Systems (AREA)
  • Color Television Image Signal Generators (AREA)
IN279/CAL/86A 1985-04-17 1986-04-10 IN165570B (es)

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
IN165570B true IN165570B (es) 1989-11-18

Family

ID=24908568

Family Applications (1)

Application Number Title Priority Date Filing Date
IN279/CAL/86A IN165570B (es) 1985-04-17 1986-04-10

Country Status (17)

Country Link
US (1) US4631603A (es)
EP (1) EP0199553B1 (es)
JP (1) JPS61288582A (es)
KR (1) KR930006529B1 (es)
CN (1) CN1004115B (es)
AT (1) ATE48732T1 (es)
AU (1) AU577011B2 (es)
CA (1) CA1256558A (es)
DE (2) DE3667580D1 (es)
ES (1) ES8800477A1 (es)
HK (1) HK132993A (es)
IE (1) IE57319B1 (es)
IN (1) IN165570B (es)
MX (1) MX163608B (es)
NZ (1) NZ215693A (es)
PH (1) PH23758A (es)
ZA (1) ZA862491B (es)

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* Cited by examiner, † Cited by third party
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Also Published As

Publication number Publication date
CN1004115B (zh) 1989-05-03
PH23758A (en) 1989-11-03
ZA862491B (en) 1986-11-26
CN86102600A (zh) 1987-03-04
ES8800477A1 (es) 1987-10-16
KR860008685A (ko) 1986-11-17
JPH0544235B2 (es) 1993-07-05
EP0199553B1 (en) 1989-12-13
US4631603A (en) 1986-12-23
EP0199553A3 (en) 1987-11-11
IE57319B1 (en) 1992-07-15
ES554085A0 (es) 1987-10-16
MX163608B (es) 1992-06-05
JPS61288582A (ja) 1986-12-18
EP0199553A2 (en) 1986-10-29
AU577011B2 (en) 1988-09-08
ATE48732T1 (de) 1989-12-15
DE199553T1 (de) 1989-04-20
HK132993A (en) 1993-12-10
DE3667580D1 (de) 1990-01-18
CA1256558A (en) 1989-06-27
AU5607786A (en) 1986-10-23
KR930006529B1 (ko) 1993-07-16
IE860992L (en) 1986-10-17
NZ215693A (en) 1989-01-06

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