GB1433943A - Recording device - Google Patents

Recording device

Info

Publication number
GB1433943A
GB1433943A GB3694273A GB3694273A GB1433943A GB 1433943 A GB1433943 A GB 1433943A GB 3694273 A GB3694273 A GB 3694273A GB 3694273 A GB3694273 A GB 3694273A GB 1433943 A GB1433943 A GB 1433943A
Authority
GB
United Kingdom
Prior art keywords
head
shoe
disc
aug
fluid pressure
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.)
Expired
Application number
GB3694273A
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.)
Philips Electronics UK Ltd
Original Assignee
Philips Electronic and Associated Industries 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 Philips Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB1433943A publication Critical patent/GB1433943A/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
    • G11B21/00—Head arrangements not specific to the method of recording or reproducing
    • G11B21/16—Supporting the heads; Supporting the sockets for plug-in heads
    • G11B21/20—Supporting the heads; Supporting the sockets for plug-in heads while the head is in operative position but stationary or permitting minor movements to follow irregularities in surface of record carrier
    • 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
    • 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
    • G11B5/60—Fluid-dynamic spacing of heads from record-carriers
    • G11B5/6005—Specially adapted for spacing from a rotating disc using a fluid cushion

Abstract

1433943 Recording and playback; mounting flying heads PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 3 Aug 1973 [8 Aug 1972] 36942/73 Heading G5R A flying head 1 is movable in controlled manner relative to its mounting shoe 4 perpendicular to magnetic disc 3, e.g. to/from a projecting operative position or to maintain the head-to-disc spacing constant. As shown, a magnetic head 1 is mounted on a double-layer electrostrictive beam 6 which is secured to the shoe 4 at both ends and which, when energized, bends to advance the head 1 towards the disc 3. The shoe 4 is subject to fluid pressure from cushion 10 and to a bias 5. A sensing device detects changes in the head-to-disc spacing, e.g. by sensing capacitance or fluid pressure, and controls the energizing voltage of the beam 6 (Fig. 3, not shown) to keep the spacing constant. The beam 6 may be of piezo-ceramic material, such as a modified lead zirconate/ titanate, and the shoe 4 may also be ceramic. A thermal or electromagnetic element, electrically controlled, may be used instead of the beam 6.
GB3694273A 1972-08-08 1973-08-03 Recording device Expired GB1433943A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7210820A NL7210820A (en) 1972-08-08 1972-08-08

Publications (1)

Publication Number Publication Date
GB1433943A true GB1433943A (en) 1976-04-28

Family

ID=19816669

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3694273A Expired GB1433943A (en) 1972-08-08 1973-08-03 Recording device

Country Status (5)

Country Link
JP (1) JPS5334722B2 (en)
DE (1) DE2336730C3 (en)
FR (1) FR2195818B1 (en)
GB (1) GB1433943A (en)
NL (1) NL7210820A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4605977A (en) * 1983-12-14 1986-08-12 Sperry Corporation Air bearing head displacement sensor and positioner
US4669011A (en) * 1985-05-03 1987-05-26 Eastman Kodak Company Slider assembly with dynamically positionable transducer
US5021906A (en) * 1989-10-31 1991-06-04 International Business Machines Corporation Programmable air bearing slider including magnetic read/write element
EP1422707A2 (en) * 2002-11-18 2004-05-26 Pioneer Corporation Information recording / reading head

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53109237U (en) * 1977-02-09 1978-09-01
JPS58115655A (en) * 1981-12-28 1983-07-09 Seiko Epson Corp Magnetic storage device
JPS58128052A (en) * 1982-01-27 1983-07-30 Nec Corp Floating type magnetic head
JPS58164064A (en) * 1982-03-24 1983-09-28 Hitachi Ltd Magnetic disk device
JPS6060070U (en) * 1983-09-29 1985-04-26 日本電気ホームエレクトロニクス株式会社 magnetic sheet device
EP0227845B1 (en) * 1985-11-19 1990-05-30 International Business Machines Corporation Method and apparatus for controlling the flying height of the head in a magnetic storage unit
JPS62250570A (en) * 1986-04-22 1987-10-31 インタ−ナショナル　ビジネス　マシ−ンズ　コ−ポレ−ション Converter for memory

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7012826A (en) * 1970-08-29 1972-03-02
JPS4825510A (en) * 1971-08-03 1973-04-03

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4605977A (en) * 1983-12-14 1986-08-12 Sperry Corporation Air bearing head displacement sensor and positioner
US4669011A (en) * 1985-05-03 1987-05-26 Eastman Kodak Company Slider assembly with dynamically positionable transducer
US5021906A (en) * 1989-10-31 1991-06-04 International Business Machines Corporation Programmable air bearing slider including magnetic read/write element
EP1422707A2 (en) * 2002-11-18 2004-05-26 Pioneer Corporation Information recording / reading head
EP1422707A3 (en) * 2002-11-18 2008-09-10 Pioneer Corporation Information recording / reading head

Also Published As

Publication number Publication date
DE2336730C3 (en) 1980-12-04
DE2336730A1 (en) 1974-02-21
NL7210820A (en) 1974-02-12
FR2195818A1 (en) 1974-03-08
JPS5334722B2 (en) 1978-09-22
JPS4946714A (en) 1974-05-04
FR2195818B1 (en) 1979-08-03
DE2336730B2 (en) 1980-04-03

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee