JPS5552533A - Magnetic recording and reproducing device of rotary head type - Google Patents

Magnetic recording and reproducing device of rotary head type

Info

Publication number
JPS5552533A
JPS5552533A JP12315978A JP12315978A JPS5552533A JP S5552533 A JPS5552533 A JP S5552533A JP 12315978 A JP12315978 A JP 12315978A JP 12315978 A JP12315978 A JP 12315978A JP S5552533 A JPS5552533 A JP S5552533A
Authority
JP
Japan
Prior art keywords
voltage
iron core
bimorph
rotary head
rotary
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
JP12315978A
Other languages
Japanese (ja)
Other versions
JPS6211405B2 (en
Inventor
Kanji Kubo
Takehiko Yano
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 JP12315978A priority Critical patent/JPS5552533A/en
Publication of JPS5552533A publication Critical patent/JPS5552533A/en
Publication of JPS6211405B2 publication Critical patent/JPS6211405B2/ja
Granted 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 apply a piezoelectric voltage to a rotating bimorph plate without contact by adjusting the height position of a rotary head by controlling the bimorph plate through a primary coil provided to the fixed part of a rotary transformer. CONSTITUTION:The rotary transformer is formed of inside iron core 13 rotating together with rotary axis 29 and outside iron core 32. When a high-tension voltage is applied across primary coil 34 of iron core 32, a low-tension secondary voltage is developed across secondary coil 33 of iron core 31 and a piezoelectric voltage is applied across the bimorph plate provided with a rotary head to adjust the height position of the head. Therefore, the bimorph plate rotating without using a slip ring, etc., is supplied with an alternating-current voltage of amplitude equivalent to bimorph-plate displacement, hysteresis erasing damping alternating-current voltage, etc., from a fixed part where a high-tension circuit part is arranged in one without contact.
JP12315978A 1978-10-05 1978-10-05 Magnetic recording and reproducing device of rotary head type Granted JPS5552533A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12315978A JPS5552533A (en) 1978-10-05 1978-10-05 Magnetic recording and reproducing device of rotary head type

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12315978A JPS5552533A (en) 1978-10-05 1978-10-05 Magnetic recording and reproducing device of rotary head type

Publications (2)

Publication Number Publication Date
JPS5552533A true JPS5552533A (en) 1980-04-17
JPS6211405B2 JPS6211405B2 (en) 1987-03-12

Family

ID=14853634

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12315978A Granted JPS5552533A (en) 1978-10-05 1978-10-05 Magnetic recording and reproducing device of rotary head type

Country Status (1)

Country Link
JP (1) JPS5552533A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59149225U (en) * 1983-03-25 1984-10-05 日本電気ホームエレクトロニクス株式会社 Piezoelectric vibrator drive device
JPH0397115A (en) * 1989-09-11 1991-04-23 Mitsubishi Electric Corp Magnetic reproducing device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5436709A (en) * 1977-08-26 1979-03-17 Sony Corp Position control circuit for rotary magnetic head

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5436709A (en) * 1977-08-26 1979-03-17 Sony Corp Position control circuit for rotary magnetic head

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59149225U (en) * 1983-03-25 1984-10-05 日本電気ホームエレクトロニクス株式会社 Piezoelectric vibrator drive device
JPH0397115A (en) * 1989-09-11 1991-04-23 Mitsubishi Electric Corp Magnetic reproducing device

Also Published As

Publication number Publication date
JPS6211405B2 (en) 1987-03-12

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