JPS5636280A - Video signal cipher processing system - Google Patents

Video signal cipher processing system

Info

Publication number
JPS5636280A
JPS5636280A JP11169579A JP11169579A JPS5636280A JP S5636280 A JPS5636280 A JP S5636280A JP 11169579 A JP11169579 A JP 11169579A JP 11169579 A JP11169579 A JP 11169579A JP S5636280 A JPS5636280 A JP S5636280A
Authority
JP
Japan
Prior art keywords
signal
synchronizing signal
synchronizing
generator
video
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
JP11169579A
Other languages
English (en)
Inventor
Hiroshi Ousaka
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.)
Faurecia Clarion Electronics Co Ltd
Original Assignee
Clarion Co Ltd
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 Clarion Co Ltd filed Critical Clarion Co Ltd
Priority to JP11169579A priority Critical patent/JPS5636280A/ja
Priority to US06/182,330 priority patent/US4398215A/en
Publication of JPS5636280A publication Critical patent/JPS5636280A/ja
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/167—Systems rendering the television signal unintelligible and subsequently intelligible
    • H04N7/171—Systems operating in the amplitude domain of the television signal
    • H04N7/1713—Systems operating in the amplitude domain of the television signal by modifying synchronisation signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
JP11169579A 1979-09-03 1979-09-03 Video signal cipher processing system Pending JPS5636280A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP11169579A JPS5636280A (en) 1979-09-03 1979-09-03 Video signal cipher processing system
US06/182,330 US4398215A (en) 1979-09-03 1980-08-28 Video signal processing system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11169579A JPS5636280A (en) 1979-09-03 1979-09-03 Video signal cipher processing system

Publications (1)

Publication Number Publication Date
JPS5636280A true JPS5636280A (en) 1981-04-09

Family

ID=14567813

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11169579A Pending JPS5636280A (en) 1979-09-03 1979-09-03 Video signal cipher processing system

Country Status (2)

Country Link
US (1) US4398215A (ja)
JP (1) JPS5636280A (ja)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS595790A (ja) * 1982-07-01 1984-01-12 Pioneer Electronic Corp テレビ映像のスクランブル方法
US4489347A (en) * 1982-08-30 1984-12-18 Zenith Radio Corporation Sine-wave decoding technique
US4542407A (en) * 1983-06-10 1985-09-17 North American Philips Corporation Method and apparatus for scrambling and descrambling television programs
US4679078A (en) * 1983-11-15 1987-07-07 Luks Industrial Company Ltd. High security subscription television transmission system
US4636852A (en) * 1984-01-26 1987-01-13 Scientific-Atlanta, Inc. Scrambling and descrambling of television signals for subscription TV
US4888799A (en) * 1986-01-03 1989-12-19 Scientific Atlanta, Inc. Scrambling of signals by inversion
US4790011A (en) * 1986-10-17 1988-12-06 Zenith Electronics Corporation Auto clamp for modulator for suppressed sync signals
US5022078A (en) * 1990-03-08 1991-06-04 Andrew F. Tresness Television signal enhancement and scrambling system
US6081599A (en) * 1997-12-01 2000-06-27 Tresness Irrevocable Patent Trust Saw television scrambling system
JP2004200900A (ja) * 2002-12-17 2004-07-15 Sanyo Electric Co Ltd 映像信号処理回路
JP4445799B2 (ja) * 2004-05-24 2010-04-07 オリンパス株式会社 被検体内導入装置および医療装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3439113A (en) * 1963-11-15 1969-04-15 Teleglobe Pay Tv System Inc Subscription television communication system
US3527877A (en) * 1965-10-21 1970-09-08 Charger Electronic Systems Inc Coded video systems with signal phase inversion
US3610819A (en) * 1966-01-04 1971-10-05 Rca Corp Video recording with alternate period inversion and low-frequency premphasis
US3801732A (en) * 1971-11-22 1974-04-02 J Reeves Method and apparatus for scrambled television

Also Published As

Publication number Publication date
US4398215A (en) 1983-08-09

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