JPS56111169A - Track servo system of magnetic disc device - Google Patents

Track servo system of magnetic disc device

Info

Publication number
JPS56111169A
JPS56111169A JP1226480A JP1226480A JPS56111169A JP S56111169 A JPS56111169 A JP S56111169A JP 1226480 A JP1226480 A JP 1226480A JP 1226480 A JP1226480 A JP 1226480A JP S56111169 A JPS56111169 A JP S56111169A
Authority
JP
Japan
Prior art keywords
disc
servo
optical
magnetic
magnetic head
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.)
Pending
Application number
JP1226480A
Other languages
Japanese (ja)
Inventor
Yasuyuki Goto
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 JP1226480A priority Critical patent/JPS56111169A/en
Publication of JPS56111169A publication Critical patent/JPS56111169A/en
Pending 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
    • G11B5/596—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 disks

Landscapes

  • Moving Of The Head To Find And Align With The Track (AREA)

Abstract

PURPOSE:To increase positioning accuracy of a magnetic head in coping with the increase in track density, by using an optical disc as a servo plane and performing the position control of magnetic head based on the servo information of the optical disc. CONSTITUTION:An optical disc 4 consisting of an optical disc base 2 and an optical recording layer 3 as servo plane is provided at one side of a servo disc 1, and a magnetic disc 7 consisting of a magnetic disc base 5 and a magnetic recording layer 6 is provided on another side. The optical disc 4 thus constituted is located at the center of a magnetic disc assembly 8 for the magnetic head position control, and the servo information on the optical recording layer 3 readout with an optical signal pickup 11 is processed at a tracking servo circuit 15, and the control signal required for tracking operation is output to a voice coil motor drive circuit 16 to move the magnetic head fitted to the arm of a carriage 10 and the optical signal pickup 11 for desired write-in/readout of information.
JP1226480A 1980-02-04 1980-02-04 Track servo system of magnetic disc device Pending JPS56111169A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1226480A JPS56111169A (en) 1980-02-04 1980-02-04 Track servo system of magnetic disc device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1226480A JPS56111169A (en) 1980-02-04 1980-02-04 Track servo system of magnetic disc device

Publications (1)

Publication Number Publication Date
JPS56111169A true JPS56111169A (en) 1981-09-02

Family

ID=11800503

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1226480A Pending JPS56111169A (en) 1980-02-04 1980-02-04 Track servo system of magnetic disc device

Country Status (1)

Country Link
JP (1) JPS56111169A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1985002933A1 (en) * 1983-12-27 1985-07-04 Ncr Corporation Magnetic record medium and apparatus and method for tracking the same
JPS62165722A (en) * 1986-01-17 1987-07-22 Nippon Electric Ind Co Ltd Hybrid type magnetic disk storage device
US6480351B2 (en) * 1997-12-01 2002-11-12 Storage Technology Corporation Optical servo system for a tape drive
US7255908B2 (en) 1997-10-22 2007-08-14 Quantum Corporation Magnetic tape

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1985002933A1 (en) * 1983-12-27 1985-07-04 Ncr Corporation Magnetic record medium and apparatus and method for tracking the same
JPS62165722A (en) * 1986-01-17 1987-07-22 Nippon Electric Ind Co Ltd Hybrid type magnetic disk storage device
US7255908B2 (en) 1997-10-22 2007-08-14 Quantum Corporation Magnetic tape
US6480351B2 (en) * 1997-12-01 2002-11-12 Storage Technology Corporation Optical servo system for a tape drive
US6549363B2 (en) 1997-12-01 2003-04-15 Storage Technology Corporation Optical servo system for a tape drive

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