JPH0624010Y2 - フォーカスサーチ回路 - Google Patents
フォーカスサーチ回路Info
- Publication number
- JPH0624010Y2 JPH0624010Y2 JP5413088U JP5413088U JPH0624010Y2 JP H0624010 Y2 JPH0624010 Y2 JP H0624010Y2 JP 5413088 U JP5413088 U JP 5413088U JP 5413088 U JP5413088 U JP 5413088U JP H0624010 Y2 JPH0624010 Y2 JP H0624010Y2
- Authority
- JP
- Japan
- Prior art keywords
- focus
- circuit
- waveform
- curve
- fzc
- 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
- 230000003287 optical effect Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 13
- 239000003990 capacitor Substances 0.000 description 6
- 244000145845 chattering Species 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 230000007257 malfunction Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 1
Landscapes
- Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5413088U JPH0624010Y2 (ja) | 1988-04-23 | 1988-04-23 | フォーカスサーチ回路 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5413088U JPH0624010Y2 (ja) | 1988-04-23 | 1988-04-23 | フォーカスサーチ回路 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01159214U JPH01159214U (enrdf_load_stackoverflow) | 1989-11-02 |
| JPH0624010Y2 true JPH0624010Y2 (ja) | 1994-06-22 |
Family
ID=31280072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5413088U Expired - Lifetime JPH0624010Y2 (ja) | 1988-04-23 | 1988-04-23 | フォーカスサーチ回路 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0624010Y2 (enrdf_load_stackoverflow) |
-
1988
- 1988-04-23 JP JP5413088U patent/JPH0624010Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01159214U (enrdf_load_stackoverflow) | 1989-11-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4878211A (en) | Method and apparatus for correcting the loop gain of a servo loop in accordance with measurements during open-loop operation | |
| EP0381394A1 (en) | Tracking error detecting apparatus and optical disc recording and/or apparatus including the same | |
| JPH0624010Y2 (ja) | フォーカスサーチ回路 | |
| US4286147A (en) | In-focus detecting device | |
| KR960011789B1 (ko) | 광학 디스크 장치 | |
| AU2003216612A1 (en) | Method and device for performing tilt correction using multi-dimensional actuator | |
| JPH06162544A (ja) | トラッキングサーボ回路 | |
| KR960007894B1 (ko) | 디스크재생시스템에서의 포커스서보개시장치 | |
| JP2866511B2 (ja) | 光ディスク装置のトラックエラー信号振幅調整方法及び装置 | |
| JPS5760568A (en) | Controller for pickup | |
| JPH0725856Y2 (ja) | Cdプレーヤの低域発振防止回路 | |
| JP3758335B2 (ja) | 光ディスク装置 | |
| JP2541756Y2 (ja) | 光ピックアップ装置 | |
| JP2508615Y2 (ja) | フオ―カスサ―ボ機構のオフセツト電圧注入回路 | |
| JPS624905Y2 (enrdf_load_stackoverflow) | ||
| JPH1091978A (ja) | フォーカスエラー信号生成回路 | |
| KR970007802B1 (ko) | 포커스 밸런스 자동 조정회로 | |
| JPH0223927B2 (enrdf_load_stackoverflow) | ||
| JPS6240623A (ja) | 光学式デイスク再生装置のフオ−カス制御回路 | |
| JP2543270Y2 (ja) | 光ディスクプレーヤのトラッキングサーボ回路 | |
| JPS6227454B2 (enrdf_load_stackoverflow) | ||
| JP2563638Y2 (ja) | 光ディスクプレーヤのスライダサーボ回路 | |
| JPH01165039A (ja) | 焦点制御装置 | |
| JPH06325394A (ja) | 光ディスク装置のトラッキングサーボ回路 | |
| JPH04252434A (ja) | 光ディスク装置 |