JPH0519773B2 - - Google Patents
Info
- Publication number
- JPH0519773B2 JPH0519773B2 JP60014746A JP1474685A JPH0519773B2 JP H0519773 B2 JPH0519773 B2 JP H0519773B2 JP 60014746 A JP60014746 A JP 60014746A JP 1474685 A JP1474685 A JP 1474685A JP H0519773 B2 JPH0519773 B2 JP H0519773B2
- Authority
- JP
- Japan
- Prior art keywords
- focus error
- error signal
- focus
- section
- signal
- 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 - Lifetime
Links
Landscapes
- Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1474685A JPS61175936A (ja) | 1985-01-29 | 1985-01-29 | 光学式情報記録装置におけるフオーカスサーボ装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1474685A JPS61175936A (ja) | 1985-01-29 | 1985-01-29 | 光学式情報記録装置におけるフオーカスサーボ装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61175936A JPS61175936A (ja) | 1986-08-07 |
| JPH0519773B2 true JPH0519773B2 (enrdf_load_stackoverflow) | 1993-03-17 |
Family
ID=11869675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1474685A Granted JPS61175936A (ja) | 1985-01-29 | 1985-01-29 | 光学式情報記録装置におけるフオーカスサーボ装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61175936A (enrdf_load_stackoverflow) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63105921U (enrdf_load_stackoverflow) * | 1986-12-27 | 1988-07-08 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57113430A (en) * | 1980-12-29 | 1982-07-14 | Matsushita Electric Ind Co Ltd | Focus servo leading-device |
| JPS5919246A (ja) * | 1982-07-24 | 1984-01-31 | Pioneer Electronic Corp | 光学式情報読取装置におけるフオ−カスサ−ボ引込装置 |
-
1985
- 1985-01-29 JP JP1474685A patent/JPS61175936A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61175936A (ja) | 1986-08-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS61177642A (ja) | 光学的情報記録再生装置 | |
| US6442109B1 (en) | Motor control apparatus, motor control method, disk apparatus and disk access method for correcting an assumed value based on error information | |
| JPH0765389A (ja) | サーボループの自動利得制御装置 | |
| US4819220A (en) | Optical information recording and reproducing apparatus | |
| NL8901588A (nl) | Inrichting voor het optekenen van informatie op een registratiedrager met een stralingsgevoelige laag. | |
| JPS61204840A (ja) | 光学的情報記録再生装置 | |
| US5157642A (en) | Optical disc recording/reproduction apparatus with improved track seeking | |
| US5245598A (en) | Method and apparatus for seek operations in an optical recording system including holding a focus error signal at track crossings | |
| US5086420A (en) | Focus control apparatus for use with an optical disk for determining whether a focused state has been obtained | |
| US6327229B1 (en) | Storage device and its seek control method | |
| JPH0519773B2 (enrdf_load_stackoverflow) | ||
| JPS58218053A (ja) | トラツクアクセス装置 | |
| JPS61177646A (ja) | 光学デイスク装置 | |
| JPS61217939A (ja) | 光学的情報記録再生装置 | |
| JP2860791B2 (ja) | フォーカスサーボ回路 | |
| CN1178215C (zh) | 快速调整光驱聚焦伺服误差信号电平的方法 | |
| JP2774295B2 (ja) | 光学的情報記録再生装置 | |
| CN100454411C (zh) | 用于光记录的气隙伺服系统 | |
| JP2583894B2 (ja) | 光学式情報記録再生装置 | |
| JPH0470698B2 (enrdf_load_stackoverflow) | ||
| JPH10162401A (ja) | 光ディスク装置およびそのレーザダイオードの発光パワーの基準値補正方法 | |
| JPH0738257B2 (ja) | 光ディスク装置 | |
| JP2548110B2 (ja) | 焦点位置制御装置 | |
| JPH1021566A (ja) | トラッキングサーボ装置 | |
| JPH0444327B2 (enrdf_load_stackoverflow) |