JPS56143773A - Magnetic recording and reproduction system - Google Patents

Magnetic recording and reproduction system

Info

Publication number
JPS56143773A
JPS56143773A JP4650980A JP4650980A JPS56143773A JP S56143773 A JPS56143773 A JP S56143773A JP 4650980 A JP4650980 A JP 4650980A JP 4650980 A JP4650980 A JP 4650980A JP S56143773 A JPS56143773 A JP S56143773A
Authority
JP
Japan
Prior art keywords
head
signal
video signal
records
recorded
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
JP4650980A
Other languages
Japanese (ja)
Inventor
Masamitsu Otsu
Hiroshi Taniguchi
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 JP4650980A priority Critical patent/JPS56143773A/en
Publication of JPS56143773A publication Critical patent/JPS56143773A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/91—Television signal processing therefor
    • H04N5/92—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
    • H04N5/928—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback the sound signal being pulse code modulated and recorded in time division multiplex with the modulated video signal

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Television Signal Processing For Recording (AREA)
  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)

Abstract

PURPOSE:To enable high-density recording by recording an audio signal, equivalent to one field period, treated by the time axis compression on the extended line of the recording track of a TV signal recorded by an auxiliary magnetic head. CONSTITUTION:To main head Hm which records and reproduces a signal excluding the vertical blanking period component of a video signal, auxiliary head Hs which records and reproduces the video signal and audio signal in the vertical blanking period is located differently in height and direction. If main head Hm enters in an absence part, auxiliary head Hs has no absence part because it is at a different position, and head Hs records the video signal in the vertical blanking period. After the video signal in this period is recorded on track V1', the audio signal having treated by the time axis compression is recorded on track A1.
JP4650980A 1980-04-08 1980-04-08 Magnetic recording and reproduction system Pending JPS56143773A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4650980A JPS56143773A (en) 1980-04-08 1980-04-08 Magnetic recording and reproduction system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4650980A JPS56143773A (en) 1980-04-08 1980-04-08 Magnetic recording and reproduction system

Publications (1)

Publication Number Publication Date
JPS56143773A true JPS56143773A (en) 1981-11-09

Family

ID=12749219

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4650980A Pending JPS56143773A (en) 1980-04-08 1980-04-08 Magnetic recording and reproduction system

Country Status (1)

Country Link
JP (1) JPS56143773A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0098727A2 (en) * 1982-07-02 1984-01-18 Dolby Laboratories Licensing Corporation Improvements in helical scan recording and playback systems
WO1985003400A1 (en) * 1984-01-26 1985-08-01 Matsushita Electric Industrial Co., Ltd. Rotary head type magnetic image recorder/reproducer

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0098727A2 (en) * 1982-07-02 1984-01-18 Dolby Laboratories Licensing Corporation Improvements in helical scan recording and playback systems
EP0098727A3 (en) * 1982-07-02 1985-10-16 Dolby Laboratories Licensing Corporation Improvements in helical scan recording and playback systems
WO1985003400A1 (en) * 1984-01-26 1985-08-01 Matsushita Electric Industrial Co., Ltd. Rotary head type magnetic image recorder/reproducer
US4811121A (en) * 1984-01-26 1989-03-07 Matsushita Electric Industrial Co., Ltd. Magnetic recording and reproducing system using preceding and lagging groups of rotary heads to permit coincident timing for reproduced video and audio signals

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