JPS5564630A - Rotary magnetic head unit - Google Patents

Rotary magnetic head unit

Info

Publication number
JPS5564630A
JPS5564630A JP13903278A JP13903278A JPS5564630A JP S5564630 A JPS5564630 A JP S5564630A JP 13903278 A JP13903278 A JP 13903278A JP 13903278 A JP13903278 A JP 13903278A JP S5564630 A JPS5564630 A JP S5564630A
Authority
JP
Japan
Prior art keywords
electrodes
head
magnetic
shaped
heads
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
JP13903278A
Other languages
Japanese (ja)
Other versions
JPS5853406B2 (en
Inventor
Tetsuji Fukada
Yukihiko Ise
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 JP53139032A priority Critical patent/JPS5853406B2/en
Priority to US06/092,375 priority patent/US4295172A/en
Publication of JPS5564630A publication Critical patent/JPS5564630A/en
Publication of JPS5853406B2 publication Critical patent/JPS5853406B2/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/58—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B5/584—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on tapes
    • G11B5/588—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on tapes by controlling the position of the rotating heads
    • G11B5/592—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on tapes by controlling the position of the rotating heads using bimorph elements supporting the heads

Landscapes

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

Abstract

PURPOSE:To obtain excellent regenerated signals by driving two magnetic heads by the same ring-shaped vibrator. CONSTITUTION:Two ring-shaped piezoelectric elements 3a and 3b which have electrodes 8a and 8b divided by non-conductor parts 9a and 9b positioned at an index angle of 180 deg. on sticking surfaces and head substrates 6a and 6b of magnetic heads 7a and 7b at an index angle of 180 deg. and electrodes 10a and 10b on unsticking surfaces are stuck together to form ring-shaped piezoelectric vibrator 3, which is pressure-fixed to projections 2a and 2b of head cylinder 1 by plate-shaped fitting jigs 4 and screws 5. Consequently, a magnetic-head-track-shift detection signal is inputted to a piezoelectric element driver circuit, whose output is sent out to magnetic head 7a through electrodes 11 and 12 and to magnetic head 7b through electrodes 11 and 13 to displace magnetic heads 7a and 7b, so that since both heads 7a and 7b have the same displacement characteristics, excellent reproduced signals can be obtained.
JP53139032A 1978-11-10 1978-11-10 Rotating magnetic head device Expired JPS5853406B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP53139032A JPS5853406B2 (en) 1978-11-10 1978-11-10 Rotating magnetic head device
US06/092,375 US4295172A (en) 1978-11-10 1979-11-08 Rotary magnetic head apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53139032A JPS5853406B2 (en) 1978-11-10 1978-11-10 Rotating magnetic head device

Publications (2)

Publication Number Publication Date
JPS5564630A true JPS5564630A (en) 1980-05-15
JPS5853406B2 JPS5853406B2 (en) 1983-11-29

Family

ID=15235863

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53139032A Expired JPS5853406B2 (en) 1978-11-10 1978-11-10 Rotating magnetic head device

Country Status (1)

Country Link
JP (1) JPS5853406B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57100775A (en) * 1980-12-15 1982-06-23 Matsushita Electric Ind Co Ltd Piezoelectric deflection element
JPS5862822A (en) * 1981-10-12 1983-04-14 Matsushita Electric Ind Co Ltd Rotary magnetic head device
JPS5872722U (en) * 1981-11-09 1983-05-17 松下電器産業株式会社 rotating head device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57100775A (en) * 1980-12-15 1982-06-23 Matsushita Electric Ind Co Ltd Piezoelectric deflection element
JPS5862822A (en) * 1981-10-12 1983-04-14 Matsushita Electric Ind Co Ltd Rotary magnetic head device
JPS6327776B2 (en) * 1981-10-12 1988-06-06 Matsushita Electric Ind Co Ltd
JPS5872722U (en) * 1981-11-09 1983-05-17 松下電器産業株式会社 rotating head device

Also Published As

Publication number Publication date
JPS5853406B2 (en) 1983-11-29

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