JPS6141049B2 - - Google Patents
Info
- Publication number
- JPS6141049B2 JPS6141049B2 JP55118934A JP11893480A JPS6141049B2 JP S6141049 B2 JPS6141049 B2 JP S6141049B2 JP 55118934 A JP55118934 A JP 55118934A JP 11893480 A JP11893480 A JP 11893480A JP S6141049 B2 JPS6141049 B2 JP S6141049B2
- Authority
- JP
- Japan
- Prior art keywords
- optical
- track
- signal
- light
- envelope value
- 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 31
- 238000005070 sampling Methods 0.000 claims description 8
- 238000010586 diagram Methods 0.000 description 11
- 238000000034 method Methods 0.000 description 6
- 230000004043 responsiveness Effects 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000006386 memory function Effects 0.000 description 1
- 230000005236 sound signal Effects 0.000 description 1
- 230000002123 temporal effect 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
- G11B7/09—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
Landscapes
- Automatic Focus Adjustment (AREA)
- Optical Recording Or Reproduction (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55118934A JPS5744234A (en) | 1980-08-27 | 1980-08-27 | Optical servo device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55118934A JPS5744234A (en) | 1980-08-27 | 1980-08-27 | Optical servo device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5744234A JPS5744234A (en) | 1982-03-12 |
| JPS6141049B2 true JPS6141049B2 (zh) | 1986-09-12 |
Family
ID=14748832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP55118934A Granted JPS5744234A (en) | 1980-08-27 | 1980-08-27 | Optical servo device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5744234A (zh) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59501233A (ja) * | 1982-06-30 | 1984-07-12 | イ−ストマン・コダック・カンパニ− | 光ディスク書き込み／読み出し用の焦点・トラッキング制御装置 |
| NL8303562A (nl) * | 1983-10-17 | 1985-05-17 | Philips Nv | Inrichting voor het weergeven van informatie van een optisch uitleesbare registratiedrager. |
| JPS6116075A (ja) * | 1984-07-02 | 1986-01-24 | Fuji Photo Film Co Ltd | 回転磁気記録体トラツキング装置 |
| DE3508422A1 (de) * | 1985-03-09 | 1986-09-11 | Deutsche Thomson-Brandt Gmbh, 7730 Villingen-Schwenningen | Schaltungsanordnung fuer ein abspielgeraet von audio- und/oder videoplatten |
-
1980
- 1980-08-27 JP JP55118934A patent/JPS5744234A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5744234A (en) | 1982-03-12 |
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