JPS5769988A - Processing circuit for video signal - Google Patents

Processing circuit for video signal

Info

Publication number
JPS5769988A
JPS5769988A JP55146614A JP14661480A JPS5769988A JP S5769988 A JPS5769988 A JP S5769988A JP 55146614 A JP55146614 A JP 55146614A JP 14661480 A JP14661480 A JP 14661480A JP S5769988 A JPS5769988 A JP S5769988A
Authority
JP
Japan
Prior art keywords
signal
circuit
dropout
switch
video signal
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.)
Granted
Application number
JP55146614A
Other languages
Japanese (ja)
Other versions
JPS6358437B2 (en
Inventor
Tetsuo Kato
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 JP55146614A priority Critical patent/JPS5769988A/en
Publication of JPS5769988A publication Critical patent/JPS5769988A/en
Publication of JPS6358437B2 publication Critical patent/JPS6358437B2/ja
Granted 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
    • H04N9/88—Signal drop-out compensation
    • H04N9/882—Signal drop-out compensation the signal being a composite colour television signal

Abstract

PURPOSE:To compensate the dropout to a playback video signal from a VTR and to correct the continuity of carrier phase of a chroma signal at speed change playback, by incorporating the dropout compensation circuit and the phase correction circuit for chroma signal. CONSTITUTION:Normally, when a switch 8 is switched to a filter 3, a delay circuit 5 and a subtraction circuit 14 form a comb type filter, and this comb type filter and a band pass filter 3 separate the chroma signal from a playback video signal at an input terminal 1 accurately. If any dropout takes place to this chroma signal, the switch 8 is selected to an inverter 7 side, and a signal delayed by one horizontal period is picked up from a subtraction circuit 14 and a applied to a phase correction circuit 16 and picked up at an output terminal 22 via a mixing circuit 20. If no dropout signal takes place, the input signal is outputted to an output terminal 22 from a switch 21.
JP55146614A 1980-10-20 1980-10-20 Processing circuit for video signal Granted JPS5769988A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55146614A JPS5769988A (en) 1980-10-20 1980-10-20 Processing circuit for video signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55146614A JPS5769988A (en) 1980-10-20 1980-10-20 Processing circuit for video signal

Publications (2)

Publication Number Publication Date
JPS5769988A true JPS5769988A (en) 1982-04-30
JPS6358437B2 JPS6358437B2 (en) 1988-11-15

Family

ID=15411712

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55146614A Granted JPS5769988A (en) 1980-10-20 1980-10-20 Processing circuit for video signal

Country Status (1)

Country Link
JP (1) JPS5769988A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5861586U (en) * 1981-10-20 1983-04-25 三洋電機株式会社 video tape recorder
JPS61208995A (en) * 1985-03-13 1986-09-17 Pioneer Electronic Corp Dropout correcting circuit

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH032520U (en) * 1989-05-26 1991-01-11

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5861586U (en) * 1981-10-20 1983-04-25 三洋電機株式会社 video tape recorder
JPH0411435Y2 (en) * 1981-10-20 1992-03-23
JPS61208995A (en) * 1985-03-13 1986-09-17 Pioneer Electronic Corp Dropout correcting circuit

Also Published As

Publication number Publication date
JPS6358437B2 (en) 1988-11-15

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