JPS5687992A - Recording and playback device for color video signal - Google Patents

Recording and playback device for color video signal

Info

Publication number
JPS5687992A
JPS5687992A JP16506479A JP16506479A JPS5687992A JP S5687992 A JPS5687992 A JP S5687992A JP 16506479 A JP16506479 A JP 16506479A JP 16506479 A JP16506479 A JP 16506479A JP S5687992 A JPS5687992 A JP S5687992A
Authority
JP
Japan
Prior art keywords
correlativity
feedback
rate
chrominance signal
carrier chrominance
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
JP16506479A
Other languages
Japanese (ja)
Other versions
JPS628074B2 (en
Inventor
Chojuro Yamamitsu
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP16506479A priority Critical patent/JPS5687992A/en
Publication of JPS5687992A publication Critical patent/JPS5687992A/en
Publication of JPS628074B2 publication Critical patent/JPS628074B2/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Processing Of Color Television Signals (AREA)

Abstract

PURPOSE:To enable the high density recording of narrow track and short wave length, by reducing the cross color and cross talk, through remarkable increase of S/N by the change in the feedback rate. CONSTITUTION:The reproduced carrier chrominance signal rejecting the time axis variance component of playback carrier chrominance signal in the playback system, is fed to a horizontal period delay device 2 and the C type comb type filter having the feedback circuit 5 of feedback rate K. This feedback, rate K is changed to the signal (c) corresponding to the period without correlativity adding the carrier chrominance signal (a) and the output (b) of the delay device 2. To the charrier chrominance signal like this, the feedback, rate K is increased with strong line correlativity (e.g., K=0.5), by taking the notice of comparatively strong correlativity, and K is decreased (e.g., K=0) when no line correlativity is present, allowing to permit the deterioration of vertical resolution, through the use of human visual sense in excellent manner. K is changed with the output of the noncorrelativity device 8, which detects the absence of line correlativity.
JP16506479A 1979-12-18 1979-12-18 Recording and playback device for color video signal Granted JPS5687992A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16506479A JPS5687992A (en) 1979-12-18 1979-12-18 Recording and playback device for color video signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16506479A JPS5687992A (en) 1979-12-18 1979-12-18 Recording and playback device for color video signal

Publications (2)

Publication Number Publication Date
JPS5687992A true JPS5687992A (en) 1981-07-17
JPS628074B2 JPS628074B2 (en) 1987-02-20

Family

ID=15805165

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16506479A Granted JPS5687992A (en) 1979-12-18 1979-12-18 Recording and playback device for color video signal

Country Status (1)

Country Link
JP (1) JPS5687992A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5919494A (en) * 1982-07-23 1984-01-31 Sony Corp Noise canceller device
JPS6069997A (en) * 1983-09-26 1985-04-20 Sony Corp Noise reduction circuit
JPS60160793A (en) * 1984-02-01 1985-08-22 Matsushita Electric Ind Co Ltd Chrominance signal processing circuit
JPS61126890A (en) * 1984-11-22 1986-06-14 Victor Co Of Japan Ltd Carrying color signal reproducing device
JPS62125792A (en) * 1985-11-26 1987-06-08 Nec Home Electronics Ltd Comb-line filter for y/c separation
JPH01293790A (en) * 1988-05-20 1989-11-27 Victor Co Of Japan Ltd Video signal processing circuit

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5660186A (en) * 1979-10-19 1981-05-23 Sony Corp Chrominance signal processing circuit

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5660186A (en) * 1979-10-19 1981-05-23 Sony Corp Chrominance signal processing circuit

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5919494A (en) * 1982-07-23 1984-01-31 Sony Corp Noise canceller device
JPS6069997A (en) * 1983-09-26 1985-04-20 Sony Corp Noise reduction circuit
JPS60160793A (en) * 1984-02-01 1985-08-22 Matsushita Electric Ind Co Ltd Chrominance signal processing circuit
JPS61126890A (en) * 1984-11-22 1986-06-14 Victor Co Of Japan Ltd Carrying color signal reproducing device
JPS62125792A (en) * 1985-11-26 1987-06-08 Nec Home Electronics Ltd Comb-line filter for y/c separation
JPH01293790A (en) * 1988-05-20 1989-11-27 Victor Co Of Japan Ltd Video signal processing circuit

Also Published As

Publication number Publication date
JPS628074B2 (en) 1987-02-20

Similar Documents

Publication Publication Date Title
JPS5778288A (en) Recorde
JPS539418A (en) Recording and reproducing unit
JPS5687992A (en) Recording and playback device for color video signal
JPS5238811A (en) Video signal multiplex transmitting system
JPS52118A (en) Still picture reproducing device
JPS5210113A (en) Amplitude limiter
JPS5235936A (en) Recording and playback system of color television signal
JPS52102620A (en) Pcm type audio signal recording/regerarating device
JPS5384705A (en) Signal reproducing system
JPS5283117A (en) Frequency conversion at video signal processing
JPS5319717A (en) Color video signal recording and reproducing system
JPS53141539A (en) Jitter corrector
JPS539417A (en) Color signal magnetic recording and reproducing unit
JPS5290915A (en) Trigger recording and reproducing system for vtrs
JPS5433009A (en) Tape recorder
JPS5447519A (en) Recording system for secam-system color television signal
JPS52138822A (en) Color picture signal recorder
JPS5428105A (en) Head recording signal switching device
JPS5419611A (en) Recording and reproducing unit for color video signal
JPS5435622A (en) Color video signal converter
JPS5426621A (en) Reproducing unit for video signal
JPS5284717A (en) Digital recording and reproduction apparatus
JPS52149430A (en) Video reproduction unit
JPS5350718A (en) Pcm recorder
JPS5419610A (en) Recording and reproducing unit for color video signal