JPS56163561A - System and device for positioning of magnetic disk head - Google Patents

System and device for positioning of magnetic disk head

Info

Publication number
JPS56163561A
JPS56163561A JP6511480A JP6511480A JPS56163561A JP S56163561 A JPS56163561 A JP S56163561A JP 6511480 A JP6511480 A JP 6511480A JP 6511480 A JP6511480 A JP 6511480A JP S56163561 A JPS56163561 A JP S56163561A
Authority
JP
Japan
Prior art keywords
head
track
magnetic disk
types
positioning
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
JP6511480A
Other languages
Japanese (ja)
Inventor
Makoto Isozaki
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP6511480A priority Critical patent/JPS56163561A/en
Publication of JPS56163561A publication Critical patent/JPS56163561A/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
    • 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

Landscapes

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

Abstract

PURPOSE:To realize an efficient positioning for a magnetic disk head, by varying the record density of information alternately at every track in three types or more and then detecting the shift of the disk head from the frequency component of a read signal to feed back to the positioning system. CONSTITUTION:The record density of three types or more is set to the rotating angle of the digital information which is recorded concentrically on a magnetic disk 1. This action is repeated alternately at every track T to carry out a writing of information. Then a minute shift (a) or (b) of a head 51 to the track T is detected from the frequency component of a read signal of the head, and this signal is fed- back to the head positioning system. Thus the head 51 is positioned at the correct position on the track T. For instance, a writing is given on the disk 1 that turns with a certain speed of angle by varying the record density with every track and alternately in three types I-III and by changing the recording modulation frequency.
JP6511480A 1980-05-16 1980-05-16 System and device for positioning of magnetic disk head Pending JPS56163561A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6511480A JPS56163561A (en) 1980-05-16 1980-05-16 System and device for positioning of magnetic disk head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6511480A JPS56163561A (en) 1980-05-16 1980-05-16 System and device for positioning of magnetic disk head

Publications (1)

Publication Number Publication Date
JPS56163561A true JPS56163561A (en) 1981-12-16

Family

ID=13277535

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6511480A Pending JPS56163561A (en) 1980-05-16 1980-05-16 System and device for positioning of magnetic disk head

Country Status (1)

Country Link
JP (1) JPS56163561A (en)

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