JPS5434214A - Location controlling system of servo head in magnetic disc recorder - Google Patents

Location controlling system of servo head in magnetic disc recorder

Info

Publication number
JPS5434214A
JPS5434214A JP10011177A JP10011177A JPS5434214A JP S5434214 A JPS5434214 A JP S5434214A JP 10011177 A JP10011177 A JP 10011177A JP 10011177 A JP10011177 A JP 10011177A JP S5434214 A JPS5434214 A JP S5434214A
Authority
JP
Japan
Prior art keywords
magnetic disc
controlling system
disc recorder
servo head
location controlling
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
JP10011177A
Other languages
Japanese (ja)
Other versions
JPS599095B2 (en
Inventor
Fumihiko Saito
Hidemitsu Aizawa
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP10011177A priority Critical patent/JPS599095B2/en
Publication of JPS5434214A publication Critical patent/JPS5434214A/en
Publication of JPS599095B2 publication Critical patent/JPS599095B2/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
    • G11B5/54—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 into or out of its operative position or across tracks
    • G11B5/55—Track change, selection or acquisition by displacement of the head
    • G11B5/5521—Track change, selection or acquisition by displacement of the head across disk tracks
    • G11B5/5526—Control therefor; circuits, track configurations or relative disposition of servo-information transducers and servo-information tracks for control thereof

Landscapes

  • Moving Of Head For Track Selection And Changing (AREA)

Abstract

PURPOSE:To prevent the production of access errors by so compensating track position detection signal levels that they become constant with respect to each track.
JP10011177A 1977-08-23 1977-08-23 Servo head positioning control device in magnetic disk recording device Expired JPS599095B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10011177A JPS599095B2 (en) 1977-08-23 1977-08-23 Servo head positioning control device in magnetic disk recording device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10011177A JPS599095B2 (en) 1977-08-23 1977-08-23 Servo head positioning control device in magnetic disk recording device

Publications (2)

Publication Number Publication Date
JPS5434214A true JPS5434214A (en) 1979-03-13
JPS599095B2 JPS599095B2 (en) 1984-02-29

Family

ID=14265250

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10011177A Expired JPS599095B2 (en) 1977-08-23 1977-08-23 Servo head positioning control device in magnetic disk recording device

Country Status (1)

Country Link
JP (1) JPS599095B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5545132A (en) * 1978-09-27 1980-03-29 Hitachi Ltd Access control system of magnetic disk memory unit
JPS58137168A (en) * 1982-02-10 1983-08-15 Hitachi Ltd Disk device
JPS6247584U (en) * 1985-09-10 1987-03-24
JPH02100983A (en) * 1989-08-23 1990-04-12 Hitachi Ltd Hoisting rope elongation detecting device for indirect-type hydraulic elevator
US6012863A (en) * 1995-04-22 2000-01-11 Nonogawa Shoji, Ltd. Case of stick-type cosmetic preparation and replaceable cartridge of stick-type cosmetic preparation used therefor

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5545132A (en) * 1978-09-27 1980-03-29 Hitachi Ltd Access control system of magnetic disk memory unit
JPS58137168A (en) * 1982-02-10 1983-08-15 Hitachi Ltd Disk device
JPS6247584U (en) * 1985-09-10 1987-03-24
JPH02100983A (en) * 1989-08-23 1990-04-12 Hitachi Ltd Hoisting rope elongation detecting device for indirect-type hydraulic elevator
US6012863A (en) * 1995-04-22 2000-01-11 Nonogawa Shoji, Ltd. Case of stick-type cosmetic preparation and replaceable cartridge of stick-type cosmetic preparation used therefor
US6022160A (en) * 1995-09-14 2000-02-08 Nonogawa Shoji, Ltd. Case of stick-type cosmetic preparation and replaceable cartridge of stick-type cosmetic preparation used therefor
US6315479B1 (en) 1995-09-14 2001-11-13 Nonogawa Shoji, Ltd. Case of stick-type cosmetic preparation and replaceable cartridge of stick-type cosmetic preparation used therefor

Also Published As

Publication number Publication date
JPS599095B2 (en) 1984-02-29

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