JPS5648761A - Vertical synchronism detecting circuit - Google Patents

Vertical synchronism detecting circuit

Info

Publication number
JPS5648761A
JPS5648761A JP12544479A JP12544479A JPS5648761A JP S5648761 A JPS5648761 A JP S5648761A JP 12544479 A JP12544479 A JP 12544479A JP 12544479 A JP12544479 A JP 12544479A JP S5648761 A JPS5648761 A JP S5648761A
Authority
JP
Japan
Prior art keywords
amplitude
video signal
vertical synchronizing
vertical
input 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
JP12544479A
Other languages
Japanese (ja)
Inventor
Hiroo Kitazawa
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP12544479A priority Critical patent/JPS5648761A/en
Publication of JPS5648761A publication Critical patent/JPS5648761A/en
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
    • H04N5/04—Synchronising
    • H04N5/08—Separation of synchronising signals from picture signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Synchronizing For Television (AREA)

Abstract

PURPOSE:To obtain a picture screen of good quality by detecting a vertical synchronizing signal stably by performing amplitude separation after processing an input video signal so that its vertical synchronizing signal part only will increase in amplitude. CONSTITUTION:A television video signal input is delayed by fixed time at N units of delay circuits 3-5 and the input video signal and output signals of delay circuits 3-5 are summed up by adding circuit 2. Thus, the only vertical synchronizing signal part in the input video signal is increased in amplitude to detect securely the vertical synchonizing signal part through the separation of amplitude separating circuit 6.
JP12544479A 1979-09-29 1979-09-29 Vertical synchronism detecting circuit Pending JPS5648761A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12544479A JPS5648761A (en) 1979-09-29 1979-09-29 Vertical synchronism detecting circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12544479A JPS5648761A (en) 1979-09-29 1979-09-29 Vertical synchronism detecting circuit

Publications (1)

Publication Number Publication Date
JPS5648761A true JPS5648761A (en) 1981-05-02

Family

ID=14910230

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12544479A Pending JPS5648761A (en) 1979-09-29 1979-09-29 Vertical synchronism detecting circuit

Country Status (1)

Country Link
JP (1) JPS5648761A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5541388A (en) * 1978-09-19 1980-03-24 Matsushita Electric Ind Co Ltd Liquid fuel combusting apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5541388A (en) * 1978-09-19 1980-03-24 Matsushita Electric Ind Co Ltd Liquid fuel combusting apparatus

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