JPS5425704A - Self-servo system - Google Patents

Self-servo system

Info

Publication number
JPS5425704A
JPS5425704A JP9086677A JP9086677A JPS5425704A JP S5425704 A JPS5425704 A JP S5425704A JP 9086677 A JP9086677 A JP 9086677A JP 9086677 A JP9086677 A JP 9086677A JP S5425704 A JPS5425704 A JP S5425704A
Authority
JP
Japan
Prior art keywords
self
layer
servo system
head
layers
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
JP9086677A
Other languages
Japanese (ja)
Inventor
Sukeyoshi Sakai
Susumu Kawakami
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 JP9086677A priority Critical patent/JPS5425704A/en
Publication of JPS5425704A publication Critical patent/JPS5425704A/en
Pending legal-status Critical Current

Links

Landscapes

  • Recording Or Reproducing By Magnetic Means (AREA)
  • Digital Magnetic Recording (AREA)
  • Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)

Abstract

PURPOSE: To perform locating of head highly accurately by so performing recording that the longitudinal directions mutually perpendicularly intersect for the region per bit of each layer of a recording medium in which magnetization directions are two layers of parallel and perpendicular and reading out separately with the head corresponding to each layer.
COPYRIGHT: (C)1979,JPO&Japio
JP9086677A 1977-07-28 1977-07-28 Self-servo system Pending JPS5425704A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9086677A JPS5425704A (en) 1977-07-28 1977-07-28 Self-servo system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9086677A JPS5425704A (en) 1977-07-28 1977-07-28 Self-servo system

Publications (1)

Publication Number Publication Date
JPS5425704A true JPS5425704A (en) 1979-02-26

Family

ID=14010451

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9086677A Pending JPS5425704A (en) 1977-07-28 1977-07-28 Self-servo system

Country Status (1)

Country Link
JP (1) JPS5425704A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5746304A (en) * 1980-09-05 1982-03-16 Seiko Epson Corp Magnetic disk device
US4558383A (en) * 1983-06-30 1985-12-10 International Business Machines Corporation Information storage disk transducer position control system using a prerecorded servo pattern requiring no alignment with the storage disk
US4642709A (en) * 1985-10-16 1987-02-10 International Business Machines Corporation Twin track vertical magnetic recording servo control method
US4652945A (en) * 1985-05-03 1987-03-24 Eastman Kodak Company Flux sensitive tracking
JPS6413213A (en) * 1987-07-07 1989-01-18 Hitachi Maxell Magnetic recording system
JPH02239402A (en) * 1989-03-13 1990-09-21 Gunma Nippon Denki Kk Magnetic recording system

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5746304A (en) * 1980-09-05 1982-03-16 Seiko Epson Corp Magnetic disk device
JPH0125124B2 (en) * 1980-09-05 1989-05-16 Seiko Epson Corp
US4558383A (en) * 1983-06-30 1985-12-10 International Business Machines Corporation Information storage disk transducer position control system using a prerecorded servo pattern requiring no alignment with the storage disk
US4652945A (en) * 1985-05-03 1987-03-24 Eastman Kodak Company Flux sensitive tracking
US4642709A (en) * 1985-10-16 1987-02-10 International Business Machines Corporation Twin track vertical magnetic recording servo control method
JPS6413213A (en) * 1987-07-07 1989-01-18 Hitachi Maxell Magnetic recording system
JPH02239402A (en) * 1989-03-13 1990-09-21 Gunma Nippon Denki Kk Magnetic recording system

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