JPS57133788A - Dropout compensating circuit - Google Patents

Dropout compensating circuit

Info

Publication number
JPS57133788A
JPS57133788A JP56019692A JP1969281A JPS57133788A JP S57133788 A JPS57133788 A JP S57133788A JP 56019692 A JP56019692 A JP 56019692A JP 1969281 A JP1969281 A JP 1969281A JP S57133788 A JPS57133788 A JP S57133788A
Authority
JP
Japan
Prior art keywords
signal
circuit
output
dropout
terminal
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
JP56019692A
Other languages
Japanese (ja)
Other versions
JPS6315796B2 (en
Inventor
Hiroyuki Sugiyama
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 JP56019692A priority Critical patent/JPS57133788A/en
Publication of JPS57133788A publication Critical patent/JPS57133788A/en
Publication of JPS6315796B2 publication Critical patent/JPS6315796B2/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 achieve compensating operation for dropout and to prevent distortion in hue, by delaying a reproduced color video signal by one horizontal scanning period and selecting one side of an input signal and an output signal for the delay circuit. CONSTITUTION:A reproduced video signal from a reproducing FM color video input terminal 1 is applied to a 1H delay circuit 4 via terminals A, C, and applied to a reproducing FM color video signal output terminal 10 with one horizontal scanning period delay. The output of the circuit 4 is applied to a contact C of the circuit 5, a video signal at the terminal 1 is applied to a dropout detection circuit 6, and a detection signal (c) is outputted when the dropout is detected. When a synchronizing signal (a) from a reproducing horizontal synchronizing signal input terminal 2 is applied to a reset terminal of an FF8, a kick pulse (e) from a kick signal input terminal 3 is applied to a gate circuit 7, the signal (c) is applied to the FF8 during the pulse period, the output (d) of the FF8 and the signal (c) are logicallly summed at an OR circuit 9, the output of the circuit 9 switches the circuit 5 and dropout is compensated.
JP56019692A 1981-02-13 1981-02-13 Dropout compensating circuit Granted JPS57133788A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56019692A JPS57133788A (en) 1981-02-13 1981-02-13 Dropout compensating circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56019692A JPS57133788A (en) 1981-02-13 1981-02-13 Dropout compensating circuit

Publications (2)

Publication Number Publication Date
JPS57133788A true JPS57133788A (en) 1982-08-18
JPS6315796B2 JPS6315796B2 (en) 1988-04-06

Family

ID=12006297

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56019692A Granted JPS57133788A (en) 1981-02-13 1981-02-13 Dropout compensating circuit

Country Status (1)

Country Link
JP (1) JPS57133788A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106030451B (en) 2014-02-28 2021-03-12 株式会社半导体能源研究所 Electronic device

Also Published As

Publication number Publication date
JPS6315796B2 (en) 1988-04-06

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