JPS54124713A - Video signal recording-reproducing method - Google Patents

Video signal recording-reproducing method

Info

Publication number
JPS54124713A
JPS54124713A JP3194878A JP3194878A JPS54124713A JP S54124713 A JPS54124713 A JP S54124713A JP 3194878 A JP3194878 A JP 3194878A JP 3194878 A JP3194878 A JP 3194878A JP S54124713 A JPS54124713 A JP S54124713A
Authority
JP
Japan
Prior art keywords
video signal
side band
band level
tape
signal recording
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
JP3194878A
Other languages
Japanese (ja)
Other versions
JPS6214906B2 (en
Inventor
Masaaki Kobayashi
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 JP3194878A priority Critical patent/JPS54124713A/en
Publication of JPS54124713A publication Critical patent/JPS54124713A/en
Publication of JPS6214906B2 publication Critical patent/JPS6214906B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Television Signal Processing For Recording (AREA)

Abstract

PURPOSE: To improve carrier-to-noise ratios and achieve the improvement of the SN ratio of video signal by stressing and recording the side band level of FM modulating waves and attenuating the side band level at the reproducing.
CONSTITUTION: Input video signal is preemphasized 2 and is FM modulated 3, thence its side band level is stressed 4 and is recorded in a tape 12 by heads 10, 11 via amplifier 5, changeover switch 6, rotary transformer 7, revolving shaft 8 and rotary head bar 9. The reproduction signal from the tape 12 is outputted via switch 6 by passing through amplifier 17, side band level attenuating circuit 18, FM demodulator 19 and deemphasis circuit 20.
COPYRIGHT: (C)1979,JPO&Japio
JP3194878A 1978-03-20 1978-03-20 Video signal recording-reproducing method Granted JPS54124713A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3194878A JPS54124713A (en) 1978-03-20 1978-03-20 Video signal recording-reproducing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3194878A JPS54124713A (en) 1978-03-20 1978-03-20 Video signal recording-reproducing method

Publications (2)

Publication Number Publication Date
JPS54124713A true JPS54124713A (en) 1979-09-27
JPS6214906B2 JPS6214906B2 (en) 1987-04-04

Family

ID=12345177

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3194878A Granted JPS54124713A (en) 1978-03-20 1978-03-20 Video signal recording-reproducing method

Country Status (1)

Country Link
JP (1) JPS54124713A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5819711A (en) * 1981-07-29 1983-02-04 Hitachi Ltd Signal processing method for magnetic recorder
JPS5870405A (en) * 1981-10-22 1983-04-26 Nippon Kogaku Kk <Nikon> Method for recording improvement of picture quality in picture recording device
JPS5880106A (en) * 1981-11-04 1983-05-14 Hitachi Ltd Signal processing method of magnetic video recorder
JPS5897992A (en) * 1981-12-07 1983-06-10 Hitachi Ltd Chroma signal recording and reproducing circuit
JPS61142894A (en) * 1985-10-18 1986-06-30 Hitachi Ltd Chrominance signal recording and reproducing circuit

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5819711A (en) * 1981-07-29 1983-02-04 Hitachi Ltd Signal processing method for magnetic recorder
JPS5870405A (en) * 1981-10-22 1983-04-26 Nippon Kogaku Kk <Nikon> Method for recording improvement of picture quality in picture recording device
JPS5880106A (en) * 1981-11-04 1983-05-14 Hitachi Ltd Signal processing method of magnetic video recorder
JPH0445881B2 (en) * 1981-11-04 1992-07-28 Hitachi Ltd
JPS5897992A (en) * 1981-12-07 1983-06-10 Hitachi Ltd Chroma signal recording and reproducing circuit
JPH0117636B2 (en) * 1981-12-07 1989-03-31 Hitachi Ltd
JPS61142894A (en) * 1985-10-18 1986-06-30 Hitachi Ltd Chrominance signal recording and reproducing circuit
JPH0123993B2 (en) * 1985-10-18 1989-05-09 Hitachi Ltd

Also Published As

Publication number Publication date
JPS6214906B2 (en) 1987-04-04

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