JPS6464180A - Floppy disk device - Google Patents

Floppy disk device

Info

Publication number
JPS6464180A
JPS6464180A JP22139287A JP22139287A JPS6464180A JP S6464180 A JPS6464180 A JP S6464180A JP 22139287 A JP22139287 A JP 22139287A JP 22139287 A JP22139287 A JP 22139287A JP S6464180 A JPS6464180 A JP S6464180A
Authority
JP
Japan
Prior art keywords
signal
servo
servo area
inputted
frequencies
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
JP22139287A
Other languages
Japanese (ja)
Inventor
Terumitsu Okamoto
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 JP22139287A priority Critical patent/JPS6464180A/en
Publication of JPS6464180A publication Critical patent/JPS6464180A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE:To obtain the relative position of a correct head regardless of the difference between first and second BPFs by recording in succession the servo signal of first, second and second, first frequencies respectively to the servo area of first and second tracks. CONSTITUTION:At the first servo area of a floppy disk, the servo signal of first and second frequencies is in succession recorded and at the servo area of the adjoining second track, the servo signal of second and first frequencies is in succession recorded. The output signal of a reproducing means 11 from the servo area is inputted to a first BPF12 and a second BPF14 and signals 21 and 23 of first and second frequency components are respectively passed through, detected by first and second detectors 13 and 15 and inputted to a detecting means 16. the detecting means 16 detects the beginning of the servo area from an input signal and the relative position of the radius direction of a magnetic head to this. The detecting output and the target position signal are inputted to a control means 17, a stepping motor 19 is driven and a magnetic head is set to a target position.
JP22139287A 1987-09-04 1987-09-04 Floppy disk device Pending JPS6464180A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22139287A JPS6464180A (en) 1987-09-04 1987-09-04 Floppy disk device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22139287A JPS6464180A (en) 1987-09-04 1987-09-04 Floppy disk device

Publications (1)

Publication Number Publication Date
JPS6464180A true JPS6464180A (en) 1989-03-10

Family

ID=16766049

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22139287A Pending JPS6464180A (en) 1987-09-04 1987-09-04 Floppy disk device

Country Status (1)

Country Link
JP (1) JPS6464180A (en)

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