JPS5548831A - Magnetic recording and reproducing unit of rotary head type - Google Patents

Magnetic recording and reproducing unit of rotary head type

Info

Publication number
JPS5548831A
JPS5548831A JP12305378A JP12305378A JPS5548831A JP S5548831 A JPS5548831 A JP S5548831A JP 12305378 A JP12305378 A JP 12305378A JP 12305378 A JP12305378 A JP 12305378A JP S5548831 A JPS5548831 A JP S5548831A
Authority
JP
Japan
Prior art keywords
head
tape
alignment
rotary head
magnetic 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
JP12305378A
Other languages
Japanese (ja)
Other versions
JPS6161171B2 (en
Inventor
Ryuhei Nakabe
Norihiko Miyawaki
Hironori Arima
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 JP12305378A priority Critical patent/JPS5548831A/en
Publication of JPS5548831A publication Critical patent/JPS5548831A/en
Publication of JPS6161171B2 publication Critical patent/JPS6161171B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)

Abstract

PURPOSE: To enable to obtain excellent reproduced picture even at not normal tape speed, by preforming the alignment of head through the use of the non-contact area between the rotary head and the tape.
CONSTITUTION: The alignment of head is made by using the period when the rotary head is not contacted with tape. That is, the head 45 is mounted on one of the piezoelectric element 44 and another is fixedly provided on the rotating body 46, and the head 47 for head alignment is placed in close to the locus of head at the part not in contact with the tape. Further, the magnetic field 48 is produced to oscillate the head and the head position is determined at the maximum point of the detected output. Then, the head position is changed with the fixed waveform signal formed in matching with each mode of the double speed reproduction and slow reproduction. Thus, after correctly correcting the locus of head, the corrected waveform is applied, then the deterioration of video quality due to the shift in track is avoided and excellent picture can always by obtained.
COPYRIGHT: (C)1980,JPO&Japio
JP12305378A 1978-10-04 1978-10-04 Magnetic recording and reproducing unit of rotary head type Granted JPS5548831A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12305378A JPS5548831A (en) 1978-10-04 1978-10-04 Magnetic recording and reproducing unit of rotary head type

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12305378A JPS5548831A (en) 1978-10-04 1978-10-04 Magnetic recording and reproducing unit of rotary head type

Publications (2)

Publication Number Publication Date
JPS5548831A true JPS5548831A (en) 1980-04-08
JPS6161171B2 JPS6161171B2 (en) 1986-12-24

Family

ID=14851028

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12305378A Granted JPS5548831A (en) 1978-10-04 1978-10-04 Magnetic recording and reproducing unit of rotary head type

Country Status (1)

Country Link
JP (1) JPS5548831A (en)

Also Published As

Publication number Publication date
JPS6161171B2 (en) 1986-12-24

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