JPS558604A - Servo system in rotary magnetic recording medium - Google Patents
Servo system in rotary magnetic recording mediumInfo
- Publication number
- JPS558604A JPS558604A JP7860478A JP7860478A JPS558604A JP S558604 A JPS558604 A JP S558604A JP 7860478 A JP7860478 A JP 7860478A JP 7860478 A JP7860478 A JP 7860478A JP S558604 A JPS558604 A JP S558604A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- center
- sliding
- movement
- 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.)
- Granted
Links
Landscapes
- Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
- Moving Of The Head To Find And Align With The Track (AREA)
Abstract
PURPOSE: To omit the trouble of machanical assembly adjustment to reduce the cost of a device by correcting electrically the disagreement between the rotation center of a rotary magnetic recording and the center of a round track position display means.
CONSTITUTION: Sliding correction signal generation circuit 13 generates correction signal S3 for the purpose of correcting electrically each optical mark off-center sliding movenent generated at magnetic disc 2 rotation time when the rotation center of magnetic disc 2 and each center of optical marks 5a, 5b,... do not agree with each other. Meanwhile, the position of signal head 8 driven by servo motor 11 is taken out as track signal S1 from photo detector 9 and is inputted to servoamplifier 12 through the operation part together with indication signal S4, which indicates the movement destination of signal head 8, and correction signal S3. As a result, even if optical marks perform offcenter sliding movement, this movement is corrected optically, thereby preventing the sliding movement of the magnetic head.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7860478A JPS558604A (en) | 1978-06-30 | 1978-06-30 | Servo system in rotary magnetic recording medium |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7860478A JPS558604A (en) | 1978-06-30 | 1978-06-30 | Servo system in rotary magnetic recording medium |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS558604A true JPS558604A (en) | 1980-01-22 |
JPS6260749B2 JPS6260749B2 (en) | 1987-12-17 |
Family
ID=13666488
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7860478A Granted JPS558604A (en) | 1978-06-30 | 1978-06-30 | Servo system in rotary magnetic recording medium |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS558604A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS607664A (en) * | 1983-06-24 | 1985-01-16 | Toshiba Corp | Method for positioning of head |
WO1985002933A1 (en) * | 1983-12-27 | 1985-07-04 | Ncr Corporation | Magnetic record medium and apparatus and method for tracking the same |
-
1978
- 1978-06-30 JP JP7860478A patent/JPS558604A/en active Granted
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS607664A (en) * | 1983-06-24 | 1985-01-16 | Toshiba Corp | Method for positioning of head |
JPH0322672B2 (en) * | 1983-06-24 | 1991-03-27 | Tokyo Shibaura Electric Co | |
WO1985002933A1 (en) * | 1983-12-27 | 1985-07-04 | Ncr Corporation | Magnetic record medium and apparatus and method for tracking the same |
Also Published As
Publication number | Publication date |
---|---|
JPS6260749B2 (en) | 1987-12-17 |
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