JPS6478476A - Tracking servo system - Google Patents
Tracking servo systemInfo
- Publication number
- JPS6478476A JPS6478476A JP23581287A JP23581287A JPS6478476A JP S6478476 A JPS6478476 A JP S6478476A JP 23581287 A JP23581287 A JP 23581287A JP 23581287 A JP23581287 A JP 23581287A JP S6478476 A JPS6478476 A JP S6478476A
- Authority
- JP
- Japan
- Prior art keywords
- frequency band
- converter
- improvement
- tracking
- tracking servo
- 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 improve the degree of improvement of off-tracking in a specific frequency band by improving the gain in the frequency band by using a frequency band amplifying filter. CONSTITUTION:A speed control loop to control the rotational speed of an access motor 3 is constituted of an encoder, 5, an A/D converter 7, a digital signal processing circuit 9, a D/A converter 10, a drive circuit, and the access motor 3. Also, a tracking servo loop to execute the tracking servo of a magnetic head is constituted of the A/D converter 7, the access motor 3, a head drive mechanism 2, and a photosensor 8. The degrees of improvement of off-tracking caused by the decentering of a disk and that caused by the expansion anisotropy is improved by using the frequency band amplifying filter 1 that increases the gain in the frequencies inherent to said causes. In such a way, the degree of improvement or off-tacking can be drastically improved.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23581287A JPS6478476A (en) | 1987-09-19 | 1987-09-19 | Tracking servo system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23581287A JPS6478476A (en) | 1987-09-19 | 1987-09-19 | Tracking servo system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6478476A true JPS6478476A (en) | 1989-03-23 |
Family
ID=16991618
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP23581287A Pending JPS6478476A (en) | 1987-09-19 | 1987-09-19 | Tracking servo system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6478476A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2018133972A (en) * | 2017-02-17 | 2018-08-23 | 株式会社リコー | Operational device, drive device, drive system, image formation device, transportation device, and operational method |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52120805A (en) * | 1976-04-02 | 1977-10-11 | Sony Corp | Servo apparatus |
-
1987
- 1987-09-19 JP JP23581287A patent/JPS6478476A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52120805A (en) * | 1976-04-02 | 1977-10-11 | Sony Corp | Servo apparatus |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2018133972A (en) * | 2017-02-17 | 2018-08-23 | 株式会社リコー | Operational device, drive device, drive system, image formation device, transportation device, and operational method |
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