JPS6457409A - Floppy disk device - Google Patents

Floppy disk device

Info

Publication number
JPS6457409A
JPS6457409A JP21435687A JP21435687A JPS6457409A JP S6457409 A JPS6457409 A JP S6457409A JP 21435687 A JP21435687 A JP 21435687A JP 21435687 A JP21435687 A JP 21435687A JP S6457409 A JPS6457409 A JP S6457409A
Authority
JP
Japan
Prior art keywords
track width
track
servo data
erasing head
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
JP21435687A
Other languages
Japanese (ja)
Inventor
Yoichi Murakami
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.)
NEC Corp
Original Assignee
NEC 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 NEC Corp filed Critical NEC Corp
Priority to JP21435687A priority Critical patent/JPS6457409A/en
Publication of JPS6457409A publication Critical patent/JPS6457409A/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
    • G11B5/016—Recording on, or reproducing or erasing from, magnetic disks using magnetic foils
    • 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)

Abstract

PURPOSE:To improve an S/N and to prevent a detecting error by using an erasing head as a servo exclusive-use, setting the track width of the erasing head to the width having a value equal to a track pitch and making sufficiently small the track width of a reading and writing head. CONSTITUTION:Servo data 3-5 are recorded and reproduced with a gap 1 of an erasing head having a track width equal to a track pitch, and data 6 and 7 are recorded and reproduced with a gap 2 of a reading and writing head having a track width sufficiently narrower than the track width of the erasing head. Since servo data are widely written, when either of the servo data 3 and the servo data 5 is used, a minimum effective track width 8 is greatly widened. Thus, the S/N is improved.
JP21435687A 1987-08-28 1987-08-28 Floppy disk device Pending JPS6457409A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21435687A JPS6457409A (en) 1987-08-28 1987-08-28 Floppy disk device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21435687A JPS6457409A (en) 1987-08-28 1987-08-28 Floppy disk device

Publications (1)

Publication Number Publication Date
JPS6457409A true JPS6457409A (en) 1989-03-03

Family

ID=16654423

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21435687A Pending JPS6457409A (en) 1987-08-28 1987-08-28 Floppy disk device

Country Status (1)

Country Link
JP (1) JPS6457409A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5438463A (en) * 1992-12-28 1995-08-01 Teac Corporation Magnetic video and audio recording and/or reproducing apparatus for simultaneously recording input video and audio signals
US6456449B1 (en) 1997-08-07 2002-09-24 International Business Machines Corporation Disk drive with wide servo burst pattern and wide servo sensing element
JP2008275050A (en) * 2007-04-27 2008-11-13 Takashi Shigesada Metal plate workpiece with stud pin, and caulking fixed type stud pin
US8216205B2 (en) * 2004-02-17 2012-07-10 Uni-Charm Corporation Disposable diaper
US8231592B2 (en) * 2004-06-03 2012-07-31 Unicharm Corporation Disposable diaper

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5438463A (en) * 1992-12-28 1995-08-01 Teac Corporation Magnetic video and audio recording and/or reproducing apparatus for simultaneously recording input video and audio signals
US6456449B1 (en) 1997-08-07 2002-09-24 International Business Machines Corporation Disk drive with wide servo burst pattern and wide servo sensing element
US8216205B2 (en) * 2004-02-17 2012-07-10 Uni-Charm Corporation Disposable diaper
US8231592B2 (en) * 2004-06-03 2012-07-31 Unicharm Corporation Disposable diaper
JP2008275050A (en) * 2007-04-27 2008-11-13 Takashi Shigesada Metal plate workpiece with stud pin, and caulking fixed type stud pin

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