JPS6248298B2 - - Google Patents
Info
- Publication number
- JPS6248298B2 JPS6248298B2 JP13624382A JP13624382A JPS6248298B2 JP S6248298 B2 JPS6248298 B2 JP S6248298B2 JP 13624382 A JP13624382 A JP 13624382A JP 13624382 A JP13624382 A JP 13624382A JP S6248298 B2 JPS6248298 B2 JP S6248298B2
- Authority
- JP
- Japan
- Prior art keywords
- focus
- signal
- output
- circuit
- 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
- 238000001514 detection method Methods 0.000 claims description 16
- 230000003287 optical effect Effects 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 description 12
- 239000003990 capacitor Substances 0.000 description 10
- 238000010586 diagram Methods 0.000 description 10
- 239000011159 matrix material Substances 0.000 description 10
- 230000010355 oscillation Effects 0.000 description 3
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 1
- 230000010354 integration 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
- G11B7/0908—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 for focusing only
Landscapes
- Automatic Focus Adjustment (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 |
|---|---|---|---|
| JP13624382A JPS5928254A (ja) | 1982-08-06 | 1982-08-06 | フオ−カスサ−ボ装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13624382A JPS5928254A (ja) | 1982-08-06 | 1982-08-06 | フオ−カスサ−ボ装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5928254A JPS5928254A (ja) | 1984-02-14 |
| JPS6248298B2 true JPS6248298B2 (pl) | 1987-10-13 |
Family
ID=15170627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13624382A Granted JPS5928254A (ja) | 1982-08-06 | 1982-08-06 | フオ−カスサ−ボ装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5928254A (pl) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63113939A (ja) * | 1986-10-31 | 1988-05-18 | Pioneer Electronic Corp | アドレス探索方法 |
-
1982
- 1982-08-06 JP JP13624382A patent/JPS5928254A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5928254A (ja) | 1984-02-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4669072A (en) | Control apparatus for optical video disk recorder/player | |
| US5146440A (en) | Track search apparatus | |
| JPH0227734B2 (pl) | ||
| JPH0416251Y2 (pl) | ||
| JP2820808B2 (ja) | 光ディスク装置のフォーカス制御機構 | |
| JPH069087B2 (ja) | 光学的情報記録再生装置 | |
| JPH05109085A (ja) | フオーカス制御装置 | |
| US6466531B1 (en) | Disc discriminator of optical disc player system | |
| JPH0438052B2 (pl) | ||
| US6850472B2 (en) | Optical pickup device and focus control method | |
| KR100722588B1 (ko) | 광디스크 장치에서의 포커스 오프셋 조정방법 | |
| JPS6248298B2 (pl) | ||
| JPH0736228B2 (ja) | 自動焦点引き込み制御装置 | |
| JPH0470698B2 (pl) | ||
| JP2727631B2 (ja) | 速度検出装置 | |
| JPS6353617B2 (pl) | ||
| US5375107A (en) | Track error control signal generation apparatus as for a disc player | |
| JPS61156540A (ja) | 光情報記録再生装置 | |
| JPH03122823A (ja) | 光ディスク装置 | |
| JP3462890B2 (ja) | フォーカスサーボ引き込み回路及び方法 | |
| JPS6118811B2 (pl) | ||
| JPS63282930A (ja) | 情報処理装置 | |
| JPH0379768B2 (pl) | ||
| JPH0370860B2 (pl) | ||
| JPS60229240A (ja) | 光学的情報再生装置 |