JPS5797281A - Magnetic reproducing device for video signal - Google Patents

Magnetic reproducing device for video signal

Info

Publication number
JPS5797281A
JPS5797281A JP55173612A JP17361280A JPS5797281A JP S5797281 A JPS5797281 A JP S5797281A JP 55173612 A JP55173612 A JP 55173612A JP 17361280 A JP17361280 A JP 17361280A JP S5797281 A JPS5797281 A JP S5797281A
Authority
JP
Japan
Prior art keywords
signal
track
time axis
video signal
luminance 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.)
Pending
Application number
JP55173612A
Other languages
Japanese (ja)
Inventor
Shinji Kaneko
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 JP55173612A priority Critical patent/JPS5797281A/en
Publication of JPS5797281A publication Critical patent/JPS5797281A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/76Television signal recording
    • H04N5/91Television signal processing therefor
    • H04N5/917Television signal processing therefor for bandwidth reduction
    • H04N5/919Television signal processing therefor for bandwidth reduction by dividing samples or signal segments, e.g. television lines, among a plurality of recording channels

Abstract

PURPOSE:To obtain a video signal with high quality, by making recording on m- track of a magnetic medium through expanding time axis to (m) times, and compressing a reproduced signal from m-track to 1/m times at playback. CONSTITUTION:A luminance signal Sy is applied to memories 13A-13D via an A-D converter 12 from an input terminal 11 and recorded on a tape 2 via switch circuits 14A, 14B and D-A converters 15A, 15B and FM modulation circuits 16A and 16B, recording amplifiers 17A and 17B and heads 1A and 1B. In this case, the luminance signal is split into two-channel at a specified time, the time axis is expanded to two times and recorded as two-track. The luminance signal reproduced from the tape 2 at the heads 1A and 1B is inputted to memories 25A-25D via playback amplifiers 21A, 21B, limiters 22A and 22B, FM demodulation circuits 23A and 23B, and A-D converters 24A and 24B, the time axis is compressed to 1/2 and the signal is outputted via a switch circuit 26 and a D-A converter 27.
JP55173612A 1980-12-09 1980-12-09 Magnetic reproducing device for video signal Pending JPS5797281A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55173612A JPS5797281A (en) 1980-12-09 1980-12-09 Magnetic reproducing device for video signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55173612A JPS5797281A (en) 1980-12-09 1980-12-09 Magnetic reproducing device for video signal

Publications (1)

Publication Number Publication Date
JPS5797281A true JPS5797281A (en) 1982-06-16

Family

ID=15963829

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55173612A Pending JPS5797281A (en) 1980-12-09 1980-12-09 Magnetic reproducing device for video signal

Country Status (1)

Country Link
JP (1) JPS5797281A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59175292A (en) * 1983-03-25 1984-10-04 Sony Corp Recording device of high speed phenomenon
JPS61187473A (en) * 1985-02-14 1986-08-21 Sony Corp Recording system
JPS6229288A (en) * 1985-07-29 1987-02-07 Nec Home Electronics Ltd Magnetic recording and reproducing device
JPS6285585A (en) * 1985-10-11 1987-04-20 Canon Inc Image pickup system
JPS62190981A (en) * 1986-02-18 1987-08-21 Matsushita Electric Ind Co Ltd Video signal recording method and recording and reproducing device
JPS63144673A (en) * 1986-12-09 1988-06-16 Canon Inc Image information recorder
JPS63144674A (en) * 1986-12-09 1988-06-16 Canon Inc Image information recorder
JPH01162980U (en) * 1989-04-11 1989-11-14
JPH02260283A (en) * 1989-03-31 1990-10-23 Sharp Corp Method and device for recording and reproducing video signal
EP0451415A2 (en) * 1990-04-06 1991-10-16 Sharp Kabushiki Kaisha Video signal recording-reproduction device

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59175292A (en) * 1983-03-25 1984-10-04 Sony Corp Recording device of high speed phenomenon
JPS61187473A (en) * 1985-02-14 1986-08-21 Sony Corp Recording system
JPS6229288A (en) * 1985-07-29 1987-02-07 Nec Home Electronics Ltd Magnetic recording and reproducing device
JPS6285585A (en) * 1985-10-11 1987-04-20 Canon Inc Image pickup system
JPH0577238B2 (en) * 1986-02-18 1993-10-26 Matsushita Electric Ind Co Ltd
JPS62190981A (en) * 1986-02-18 1987-08-21 Matsushita Electric Ind Co Ltd Video signal recording method and recording and reproducing device
JPS63144673A (en) * 1986-12-09 1988-06-16 Canon Inc Image information recorder
JPS63144674A (en) * 1986-12-09 1988-06-16 Canon Inc Image information recorder
JPH02260283A (en) * 1989-03-31 1990-10-23 Sharp Corp Method and device for recording and reproducing video signal
JPH01162980U (en) * 1989-04-11 1989-11-14
JPH055745Y2 (en) * 1989-04-11 1993-02-15
US5253076A (en) * 1990-04-06 1993-10-12 Sharp Kabushiki Kaisha Video signal recording-reproduction device
EP0451415A2 (en) * 1990-04-06 1991-10-16 Sharp Kabushiki Kaisha Video signal recording-reproduction device
US5406382A (en) * 1990-04-06 1995-04-11 Sharp Kabushiki Kaisha Video signal recordding-reproduction apparatus for wide band video signals

Similar Documents

Publication Publication Date Title
JPS52102014A (en) Signal processing apparatus
EP0255111A2 (en) Apparatus for recording and reproducing digital signals
GB1521115A (en) Reproducing optical recordings
JPS5943676A (en) Electronic camera system
US4562492A (en) Noise reduction circuit
JPH03283072A (en) Optical recording disk and its reproducing device
JPS57167172A (en) High density information recording and reproducing system
US4712143A (en) Apparatus for monitoring a timebase compressed color video signal
JPS5741084A (en) Voice signal recording and reproducing device
KR940007816A (en) Editing method and editing device
JPS59142730A (en) Automatic tracking method
JPH0691644B2 (en) Video recording / playback device
JPS57143704A (en) Magnetic recording and reproducing device
GB1177089A (en) Wide Band Recording and Reproducing System
US5220427A (en) Magnetic reproducing apparatus having circuit for preventing reversal of white peak
JPS55163613A (en) Aural signal recording/reproducing system
JPS58139315A (en) Digital tape recorder
JPS5730474A (en) Slow-motion reproduction system of magnetic reproducing device
JPS59110062A (en) Signal reproducing device
JPS5954012A (en) Recording and reproducing device of digital signal
JPS61131980A (en) Portable camera incorporated with vtr
JPS5647907A (en) Recording and reproducing device for digital signal
JPS62133878A (en) Video signal recorder
JPS5644285A (en) Video and sound signal recording device
KR940010071A (en) Multi-channel recording and playback device