JPS5783970A - Synchronizing pulse separating circuit - Google Patents

Synchronizing pulse separating circuit

Info

Publication number
JPS5783970A
JPS5783970A JP16003580A JP16003580A JPS5783970A JP S5783970 A JPS5783970 A JP S5783970A JP 16003580 A JP16003580 A JP 16003580A JP 16003580 A JP16003580 A JP 16003580A JP S5783970 A JPS5783970 A JP S5783970A
Authority
JP
Japan
Prior art keywords
video signal
delay
addition
same amplitude
amplitude value
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
JP16003580A
Other languages
Japanese (ja)
Inventor
Shigehiro Ito
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.)
Victor Company of Japan Ltd
Nippon Victor KK
Original Assignee
Victor Company of Japan Ltd
Nippon Victor KK
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 Victor Company of Japan Ltd, Nippon Victor KK filed Critical Victor Company of Japan Ltd
Priority to JP16003580A priority Critical patent/JPS5783970A/en
Publication of JPS5783970A publication Critical patent/JPS5783970A/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 regenerate stable, high-precision vertical synchronizing pulses from a video signal containing waveform distortion, by using an addition video signal obtained by adding a video signal and its delay signal with the same amplitude value. CONSTITUTION:When a video signal l1 is applied, an adder 4a adds this input video signal and a delay video signal, delayed a constant time behind the said video signal by a delay circuit 4b, with nearly the same amplitude value, and the gain is reduced to half by an attenuator 4c to obtain an addition video signal at a terminal l2. The delay time value is set nearly equal to the pulse width of horizontal synchronizing pulses. Then, this addition video signal is applied to a trailing low-pass filter 5 to remove unnecessary high-frequency components.
JP16003580A 1980-11-13 1980-11-13 Synchronizing pulse separating circuit Pending JPS5783970A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16003580A JPS5783970A (en) 1980-11-13 1980-11-13 Synchronizing pulse separating circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16003580A JPS5783970A (en) 1980-11-13 1980-11-13 Synchronizing pulse separating circuit

Publications (1)

Publication Number Publication Date
JPS5783970A true JPS5783970A (en) 1982-05-26

Family

ID=15706531

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16003580A Pending JPS5783970A (en) 1980-11-13 1980-11-13 Synchronizing pulse separating circuit

Country Status (1)

Country Link
JP (1) JPS5783970A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6082877U (en) * 1983-11-14 1985-06-08 三洋電機株式会社 Vertical synchronization signal separation circuit for television receivers
FR2644025A1 (en) * 1989-03-03 1990-09-07 Thomson Csf Device for extracting "3 state" pulses in a noisy medium

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6082877U (en) * 1983-11-14 1985-06-08 三洋電機株式会社 Vertical synchronization signal separation circuit for television receivers
JPH0441659Y2 (en) * 1983-11-14 1992-09-30
FR2644025A1 (en) * 1989-03-03 1990-09-07 Thomson Csf Device for extracting "3 state" pulses in a noisy medium

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