JPS6464180A - Floppy disk device - Google Patents
Floppy disk deviceInfo
- 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
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.
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) |
-
1987
- 1987-09-04 JP JP22139287A patent/JPS6464180A/en active Pending
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