JPS56138373A - Magnetic recording and playback system - Google Patents

Magnetic recording and playback system

Info

Publication number
JPS56138373A
JPS56138373A JP4264580A JP4264580A JPS56138373A JP S56138373 A JPS56138373 A JP S56138373A JP 4264580 A JP4264580 A JP 4264580A JP 4264580 A JP4264580 A JP 4264580A JP S56138373 A JPS56138373 A JP S56138373A
Authority
JP
Japan
Prior art keywords
field
recording track
rotating head
recorded
head
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
JP4264580A
Other languages
Japanese (ja)
Other versions
JPS637504B2 (en
Inventor
Osamu Nakajima
Sadanobu Kawabe
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP4264580A priority Critical patent/JPS56138373A/en
Publication of JPS56138373A publication Critical patent/JPS56138373A/en
Publication of JPS637504B2 publication Critical patent/JPS637504B2/ja
Granted 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
    • H04N5/78—Television signal recording using magnetic recording
    • H04N5/782—Television signal recording using magnetic recording on tape

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)

Abstract

PURPOSE:To make the size of a head drum small, by constituting one field of a video signal with two recording tracks. CONSTITUTION:One field of the video signal to be recorded is 262.5H, and 1/2 field, i.e., 131.25H is recorded on one recording track. Thus, the length of the recording track 5 is halved even at the same relative speed as conventional systems, the diameter of the head drum can be halved, resulting in making small the size. But, the number of revolutions of the rotating head can be doubled. Since the switching of the rotating head is made twice per one field, once on the playback screen, joint is caused at the center of the screen without fail, the processing is possible with electric correcting means. At playback, the rotating head 3a traces over the recording track of B-B'', but the signal is not detected because the azimuth of the gap 4 is different.
JP4264580A 1980-03-31 1980-03-31 Magnetic recording and playback system Granted JPS56138373A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4264580A JPS56138373A (en) 1980-03-31 1980-03-31 Magnetic recording and playback system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4264580A JPS56138373A (en) 1980-03-31 1980-03-31 Magnetic recording and playback system

Publications (2)

Publication Number Publication Date
JPS56138373A true JPS56138373A (en) 1981-10-28
JPS637504B2 JPS637504B2 (en) 1988-02-17

Family

ID=12641743

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4264580A Granted JPS56138373A (en) 1980-03-31 1980-03-31 Magnetic recording and playback system

Country Status (1)

Country Link
JP (1) JPS56138373A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60130985A (en) * 1983-12-20 1985-07-12 Matsushita Electric Ind Co Ltd Video tape recorder

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60130985A (en) * 1983-12-20 1985-07-12 Matsushita Electric Ind Co Ltd Video tape recorder

Also Published As

Publication number Publication date
JPS637504B2 (en) 1988-02-17

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