JPS5646385A - Dropout compensating circuit - Google Patents

Dropout compensating circuit

Info

Publication number
JPS5646385A
JPS5646385A JP12293879A JP12293879A JPS5646385A JP S5646385 A JPS5646385 A JP S5646385A JP 12293879 A JP12293879 A JP 12293879A JP 12293879 A JP12293879 A JP 12293879A JP S5646385 A JPS5646385 A JP S5646385A
Authority
JP
Japan
Prior art keywords
output
detector
fed
signal
dropout
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
JP12293879A
Other languages
Japanese (ja)
Inventor
Yukio Hayakawa
Masahiko Motai
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 JP12293879A priority Critical patent/JPS5646385A/en
Publication of JPS5646385A publication Critical patent/JPS5646385A/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
    • H04N9/88—Signal drop-out compensation
    • H04N9/882—Signal drop-out compensation the signal being a composite colour television signal

Abstract

PURPOSE:To perform the dropout compensation at the output section of video signal and to easily compensate the color signal, by taking the delay time of delay element as the value in displacement of a factor of an odd number for the semi-period of the color carrier from one horizontal time. CONSTITUTION:The reproduced FM signal is input to the limiter FM detector 11 and the envelope detector 12, and the output of the detector 11 is fed to the summing point 13. Further, the output of the detector 12 is fed to the electronic switch 15 as the dropout detection signal through the clip pulse amplifier 14, and the video signal output is picked up through the switching of the output of the CCD delay line 16 and the output of the summing point 13 at the switch 15. Further, the reproduced chroma signal is fed to the summing point 13 via the frequency converter 17 for the addition with the output of the detector 12, the result of the addition is fed to the delay line 16 and the switch 15, and the compensation of dropout of the video signal output can be made by taking the delay time of the delay line 16 as the displacement of a multiple of an odd number for the semi-period time of the color carrier than one horizontal time.
JP12293879A 1979-09-25 1979-09-25 Dropout compensating circuit Pending JPS5646385A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12293879A JPS5646385A (en) 1979-09-25 1979-09-25 Dropout compensating circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12293879A JPS5646385A (en) 1979-09-25 1979-09-25 Dropout compensating circuit

Publications (1)

Publication Number Publication Date
JPS5646385A true JPS5646385A (en) 1981-04-27

Family

ID=14848320

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12293879A Pending JPS5646385A (en) 1979-09-25 1979-09-25 Dropout compensating circuit

Country Status (1)

Country Link
JP (1) JPS5646385A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4814863A (en) * 1987-06-09 1989-03-21 Matsushita Electric Industrial Co., Ltd. Detection and concealing artifacts in combed video signals

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4814863A (en) * 1987-06-09 1989-03-21 Matsushita Electric Industrial Co., Ltd. Detection and concealing artifacts in combed video signals

Similar Documents

Publication Publication Date Title
ES8304394A1 (en) Circuitry for controlling the D.C. level of a video signal.
JPS5646385A (en) Dropout compensating circuit
ES8608754A1 (en) Non-saturating video output amplifier
ES455384A1 (en) Chroma-burst separator and amplifier
JPS5625827A (en) Coding unit
JPS5769988A (en) Processing circuit for video signal
JPS5717277A (en) Raster blanking circuit
JPS5446420A (en) Dubbing system
JPS5525279A (en) Automatic frequency tuning defeat device
JPS5528645A (en) Compensation circuit for deficient noise
JPS56116390A (en) Chroma signal processor
ES464444A1 (en) Circuit arrangement for developing a twice-line frequency signal from a chrominance sub-carrier in a colour televisiion system
JPS57107683A (en) Dropout compensating circuit for video signal
JPS5481015A (en) Processor for color television signal
JPS57133788A (en) Dropout compensating circuit
JPS53133323A (en) Video keying amplifier circuit
GB764267A (en) Improvements relating to electronic gating circuits
JPS5593381A (en) Compensation unit for drop out
JPS5574284A (en) Separator for luminance and chroma signal
JPS5291321A (en) Television receiver
JPS53118930A (en) Television receiver
JPS5332627A (en) Multi-item input unit
JPS55121735A (en) Comb-line filter
JPS5593386A (en) Television receiver
JPS57116490A (en) Dropout compensation system