JPS6481684A - Positioning controller for magnetic disc - Google Patents
Positioning controller for magnetic discInfo
- Publication number
- JPS6481684A JPS6481684A JP62237122A JP23712287A JPS6481684A JP S6481684 A JPS6481684 A JP S6481684A JP 62237122 A JP62237122 A JP 62237122A JP 23712287 A JP23712287 A JP 23712287A JP S6481684 A JPS6481684 A JP S6481684A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- track
- detector
- follow
- switch
- 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)
- Control Of Linear Motors (AREA)
Abstract
PURPOSE:To enable detecting a track position with a high accuracy by detecting the signal amplitude of a position signal. CONSTITUTION:At the time of seek operation, a switch 6 is connected with a contact 6a to follow the speed control mode. Also at the time of following operation, the switch 6 is connected with a contact 6b to follow the position control mode. On the other hand, a pulse signal is outputted from a track-cross detector 13, whenever a servo head and a read-write head cross a cylinder. A microcomputer 1 outputs a desired speed signal on the basis of the output signal of said track-cross detector 13. Further, a track-position detector 14 sample-holds the peak value of a position signal to output a track-position detection signal. In this manner, it is possible to conduct a positioning control even to the details.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62237122A JPS6481684A (en) | 1987-09-24 | 1987-09-24 | Positioning controller for magnetic disc |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62237122A JPS6481684A (en) | 1987-09-24 | 1987-09-24 | Positioning controller for magnetic disc |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6481684A true JPS6481684A (en) | 1989-03-27 |
Family
ID=17010735
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62237122A Pending JPS6481684A (en) | 1987-09-24 | 1987-09-24 | Positioning controller for magnetic disc |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6481684A (en) |
-
1987
- 1987-09-24 JP JP62237122A patent/JPS6481684A/en active Pending
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0094828A3 (en) | Apparatus for indicating the position of a member | |
EP0299771A3 (en) | Wave motor driving circuit | |
EP0304299A3 (en) | An optical disc drive | |
KR900003004B1 (en) | Disk player | |
AU5281986A (en) | Servo circuit for use with a reproducing apparatus | |
JPS6481684A (en) | Positioning controller for magnetic disc | |
MY104528A (en) | Optical disc servo apparatus. | |
JPS5613572A (en) | Floppy disk unit | |
JPS5587350A (en) | Magnetic disk device | |
JPS643826A (en) | Optical disk device | |
JPS56145565A (en) | Disc driving device | |
JPS6414783A (en) | Floppy disk device | |
JPS5720970A (en) | Control system for magnetic head position | |
JPS5755530A (en) | Head tracking controller | |
JPS56114148A (en) | Rotary head type magnetic recording and reproducing device | |
JPS648565A (en) | Magnetic disk device | |
JPS6449181A (en) | Magnetic disk device | |
JPS6435751A (en) | Information signal reproducing device | |
JPS57210483A (en) | Origin returning method for head of magnetic disk device | |
JPS641169A (en) | Optical disk device | |
JPS5613566A (en) | Generating circuit for track-crossing pulse | |
JPS6466877A (en) | Carriage deriving arm for disk device | |
JPS6423471A (en) | Track seek device | |
JPS56145564A (en) | Coaxial disc pack driving device | |
JPS6421773A (en) | Magnetic disk device |