JPH0452530B2 - - Google Patents
Info
- Publication number
- JPH0452530B2 JPH0452530B2 JP18060583A JP18060583A JPH0452530B2 JP H0452530 B2 JPH0452530 B2 JP H0452530B2 JP 18060583 A JP18060583 A JP 18060583A JP 18060583 A JP18060583 A JP 18060583A JP H0452530 B2 JPH0452530 B2 JP H0452530B2
- Authority
- JP
- Japan
- Prior art keywords
- signal
- circuit
- tracking
- optical pickup
- 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.)
- Expired
Links
- 230000003287 optical effect Effects 0.000 claims description 32
- 238000010586 diagram Methods 0.000 description 7
- 230000035939 shock Effects 0.000 description 2
- 230000005236 sound signal Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
- G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
- G11B7/08505—Methods for track change, selection or preliminary positioning by moving the head
- G11B7/08517—Methods for track change, selection or preliminary positioning by moving the head with tracking pull-in only
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
- G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B7/0946—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following specially adapted for operation during external perturbations not related to the carrier or servo beam, e.g. vibration
Landscapes
- Moving Of The Head To Find And Align With The Track (AREA)
- Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
- Optical Recording Or Reproduction (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18060583A JPS6074167A (ja) | 1983-09-30 | 1983-09-30 | 光学ヘツドの送りサ−ボ回路 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18060583A JPS6074167A (ja) | 1983-09-30 | 1983-09-30 | 光学ヘツドの送りサ−ボ回路 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6074167A JPS6074167A (ja) | 1985-04-26 |
| JPH0452530B2 true JPH0452530B2 (fr) | 1992-08-24 |
Family
ID=16086169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18060583A Granted JPS6074167A (ja) | 1983-09-30 | 1983-09-30 | 光学ヘツドの送りサ−ボ回路 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6074167A (fr) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS613566U (ja) * | 1984-06-14 | 1986-01-10 | アイワ株式会社 | 光学ピツクアツプ送り制御装置 |
| JP2551073B2 (ja) * | 1988-01-14 | 1996-11-06 | 株式会社ニコン | トラッキング制御装置 |
| US5046060A (en) * | 1990-06-14 | 1991-09-03 | International Business Machines Corporation | Servo error controls |
-
1983
- 1983-09-30 JP JP18060583A patent/JPS6074167A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6074167A (ja) | 1985-04-26 |
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