JPS5479014A - Recording method of magnetic discs - Google Patents

Recording method of magnetic discs

Info

Publication number
JPS5479014A
JPS5479014A JP14628177A JP14628177A JPS5479014A JP S5479014 A JPS5479014 A JP S5479014A JP 14628177 A JP14628177 A JP 14628177A JP 14628177 A JP14628177 A JP 14628177A JP S5479014 A JPS5479014 A JP S5479014A
Authority
JP
Japan
Prior art keywords
magnetic heads
magnetic
center
recording
recording method
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
JP14628177A
Other languages
Japanese (ja)
Inventor
Takashi Aikawa
Yuji Inoue
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 JP14628177A priority Critical patent/JPS5479014A/en
Publication of JPS5479014A publication Critical patent/JPS5479014A/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
    • G11B5/012—Recording on, or reproducing or erasing from, magnetic disks

Abstract

PURPOSE:To perform positioning of magnetic heads accurately by making the leakage rates of magnetic fluxes from adjoining tracks constant on the outer side and inner side of a magnetic disc. CONSTITUTION:Intertrack spacing zones are classified to 3 kinds, outer-, center- and inner track zones 6 thru 8 and the spacings between the tracks 5 are so set as to be subsequently narrowed from the outer to the center and inner ones. Servo information is beforehand set in this way and in the case of recording, a linear motor, etc. for moving magnetic heads for servo recording are controlled. Thereby, positioning of the magnetic heads may be accurately performed.
JP14628177A 1977-12-06 1977-12-06 Recording method of magnetic discs Pending JPS5479014A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14628177A JPS5479014A (en) 1977-12-06 1977-12-06 Recording method of magnetic discs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14628177A JPS5479014A (en) 1977-12-06 1977-12-06 Recording method of magnetic discs

Publications (1)

Publication Number Publication Date
JPS5479014A true JPS5479014A (en) 1979-06-23

Family

ID=15404162

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14628177A Pending JPS5479014A (en) 1977-12-06 1977-12-06 Recording method of magnetic discs

Country Status (1)

Country Link
JP (1) JPS5479014A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5693140A (en) * 1979-12-25 1981-07-28 Fujitsu Ltd Magnetic disk device
JPS56145053U (en) * 1980-03-31 1981-11-02
EP0902422A2 (en) * 1997-08-18 1999-03-17 Fujitsu Limited Servo track writing on a disk

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5693140A (en) * 1979-12-25 1981-07-28 Fujitsu Ltd Magnetic disk device
JPS56145053U (en) * 1980-03-31 1981-11-02
EP0902422A2 (en) * 1997-08-18 1999-03-17 Fujitsu Limited Servo track writing on a disk
EP0902422A3 (en) * 1997-08-18 1999-12-08 Fujitsu Limited Servo track writing on a disk
US6151187A (en) * 1997-08-18 2000-11-21 Fujitsu Limited Disk unit, a servo track write system and a servo track write method

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