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JPS5640385A - Separating circuit of video signal - Google Patents

Separating circuit of video signal

Info

Publication number
JPS5640385A
JPS5640385A JP11634479A JP11634479A JPS5640385A JP S5640385 A JPS5640385 A JP S5640385A JP 11634479 A JP11634479 A JP 11634479A JP 11634479 A JP11634479 A JP 11634479A JP S5640385 A JPS5640385 A JP S5640385A
Authority
JP
Japan
Prior art keywords
frequency
horizontal synchronizing
video signal
reproducing
separating circuit
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
JP11634479A
Other languages
Japanese (ja)
Inventor
Ichitaro Sato
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.)
Sony Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Priority to JP11634479A priority Critical patent/JPS5640385A/en
Publication of JPS5640385A publication Critical patent/JPS5640385A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/79—Processing of colour television signals in connection with recording
    • H04N9/87—Regeneration of colour television signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)

Abstract

PURPOSE:To make it possible to separate the luminance signal and the chroma signal accurately, by obtaining a delay time according to the reproducing speed. CONSTITUTION:The horizontal synchronizing pulse is separated from the reproducing video signal by horizontal synchronizing separating circuit 20 and is supplied to frequency discriminator 21 and has frequency fluctuation detected with the horizontal synchronizing frequency as the center frequency, and the discrimination output corresponding to frequency fluctuation is supplied to VCO22. Now, when the VTR is switched to the first reproducing mode, the frequency of horizontal synchronizing pulses separated from the reproducing video signal is changed also according to mode switching, and the delay time of delay element 3 is changed according to the tape speed.
JP11634479A 1979-09-11 1979-09-11 Separating circuit of video signal Pending JPS5640385A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11634479A JPS5640385A (en) 1979-09-11 1979-09-11 Separating circuit of video signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11634479A JPS5640385A (en) 1979-09-11 1979-09-11 Separating circuit of video signal

Publications (1)

Publication Number Publication Date
JPS5640385A true JPS5640385A (en) 1981-04-16

Family

ID=14684617

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11634479A Pending JPS5640385A (en) 1979-09-11 1979-09-11 Separating circuit of video signal

Country Status (1)

Country Link
JP (1) JPS5640385A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6461191A (en) * 1987-08-31 1989-03-08 Sharp Kk Video signal processing unit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6461191A (en) * 1987-08-31 1989-03-08 Sharp Kk Video signal processing unit

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