JPS6476504A - Magnetic disk - Google Patents

Magnetic disk

Info

Publication number
JPS6476504A
JPS6476504A JP23261987A JP23261987A JPS6476504A JP S6476504 A JPS6476504 A JP S6476504A JP 23261987 A JP23261987 A JP 23261987A JP 23261987 A JP23261987 A JP 23261987A JP S6476504 A JPS6476504 A JP S6476504A
Authority
JP
Japan
Prior art keywords
recording layer
servo signal
data signal
signal recording
servo
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
JP23261987A
Other languages
Japanese (ja)
Inventor
Kenji Tanaka
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.)
Maxell Holdings Ltd
Original Assignee
Hitachi Maxell 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 Hitachi Maxell Ltd filed Critical Hitachi Maxell Ltd
Priority to JP23261987A priority Critical patent/JPS6476504A/en
Publication of JPS6476504A publication Critical patent/JPS6476504A/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

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

Abstract

PURPOSE:To reduce the distortion of a data signal and to obtain the satisfactory output of a servo signal by setting the holding force of a data signal recording layer at specific times the residual flux density of a servo signal recording layer. CONSTITUTION:In a magnetic disk where the servo signal recording layer 2 in which the servo signal for positioning a head is recorded is formed on a base 1 and the data signal recording layer 3 in which the data signal is recorded on the servo signal recording layer 2 is formed, the holding force of the data signal recording layer 3 is set at 0.7-1.0 times the residual flux density of the servo signal recording layer 2. Thereby, it is possible to reduce the leakage flux of the servo signal and to suppress the partial reduction (distortion) of the output of the data signal due to the influence of the servo signal. In such a way, the distortion of the data signal can be suppressed at minimum and the satisfactory output of the servo signal can be obtained.
JP23261987A 1987-09-18 1987-09-18 Magnetic disk Pending JPS6476504A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23261987A JPS6476504A (en) 1987-09-18 1987-09-18 Magnetic disk

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23261987A JPS6476504A (en) 1987-09-18 1987-09-18 Magnetic disk

Publications (1)

Publication Number Publication Date
JPS6476504A true JPS6476504A (en) 1989-03-22

Family

ID=16942165

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23261987A Pending JPS6476504A (en) 1987-09-18 1987-09-18 Magnetic disk

Country Status (1)

Country Link
JP (1) JPS6476504A (en)

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