JPH0580054B2 - - Google Patents
Info
- Publication number
- JPH0580054B2 JPH0580054B2 JP15896585A JP15896585A JPH0580054B2 JP H0580054 B2 JPH0580054 B2 JP H0580054B2 JP 15896585 A JP15896585 A JP 15896585A JP 15896585 A JP15896585 A JP 15896585A JP H0580054 B2 JPH0580054 B2 JP H0580054B2
- Authority
- JP
- Japan
- Prior art keywords
- signal
- state
- phase difference
- detection signals
- digital detection
- 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
- 238000001514 detection method Methods 0.000 claims description 121
- 238000007493 shaping process Methods 0.000 claims description 16
- 230000003287 optical effect Effects 0.000 claims description 14
- 230000001934 delay Effects 0.000 claims 1
- 239000000284 extract Substances 0.000 claims 1
- 239000000126 substance Substances 0.000 claims 1
- 230000002159 abnormal effect Effects 0.000 description 17
- 238000010586 diagram Methods 0.000 description 16
- 238000000034 method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000035945 sensitivity Effects 0.000 description 4
- 230000003111 delayed effect Effects 0.000 description 3
- 230000005856 abnormality Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Landscapes
- Optical Recording Or Reproduction (AREA)
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60158965A JPS6220145A (ja) | 1985-07-18 | 1985-07-18 | 光学的情報再生装置 |
| US06/837,287 US4740940A (en) | 1985-03-11 | 1986-03-06 | Optical information read apparatus |
| KR8601708A KR900002997B1 (en) | 1985-03-11 | 1986-03-11 | Optical information player |
| EP86301731A EP0197666B1 (en) | 1985-03-11 | 1986-03-11 | Optical information-reproducing apparatus |
| DE8686301731T DE3675056D1 (de) | 1985-03-11 | 1986-03-11 | Optisches informationswiedergabegeraet. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60158965A JPS6220145A (ja) | 1985-07-18 | 1985-07-18 | 光学的情報再生装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6220145A JPS6220145A (ja) | 1987-01-28 |
| JPH0580054B2 true JPH0580054B2 (en]) | 1993-11-05 |
Family
ID=15683233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60158965A Granted JPS6220145A (ja) | 1985-03-11 | 1985-07-18 | 光学的情報再生装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6220145A (en]) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0686968B1 (en) | 1994-06-07 | 1999-01-07 | Matsushita Electric Industrial Co., Ltd. | Optical information recording medium, optical information recording method, and optical information reproducing apparatus using the same |
| JPH09251651A (ja) * | 1996-03-15 | 1997-09-22 | Toshiba Corp | 位相差電圧生成回路 |
| JP2007223883A (ja) | 2005-12-26 | 2007-09-06 | Asahi Glass Co Ltd | 車両用合せガラス |
| JP5717049B2 (ja) | 2011-02-22 | 2015-05-13 | スズキ株式会社 | 内燃機関の制御装置 |
-
1985
- 1985-07-18 JP JP60158965A patent/JPS6220145A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6220145A (ja) | 1987-01-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS60119641A (ja) | トラッキングエラ−信号発生装置 | |
| JPH057770B2 (en]) | ||
| JPH0460927A (ja) | 光ピックアップ | |
| JP2523555B2 (ja) | 光スポットの制御方法及び位置制御装置 | |
| JPH02273328A (ja) | 光学式記録再生装置のデトラック検出方法 | |
| US5083303A (en) | Sector mark detecting apparatus in optical disc apparatus | |
| JPH0580054B2 (en]) | ||
| JPH0782656B2 (ja) | 光デイスク装置 | |
| JPH0536083A (ja) | 光記録再生装置 | |
| US5563863A (en) | Information reproducing method and apparatus for reproducing digital information by determining the information in multiple bit units based on binarizer output signals | |
| JPH0256734A (ja) | 光学的再生装置 | |
| JPH0633581Y2 (ja) | 波形解析回路 | |
| US4740944A (en) | Optical disk phase lock loop with comb filter | |
| JP3011491B2 (ja) | トラッキングエラー検出装置 | |
| JP2824573B2 (ja) | トラツキングエラー信号発生回路 | |
| JP2633865B2 (ja) | トラッキング方法 | |
| JPH0580053B2 (en]) | ||
| JPS62195733A (ja) | トラツク検出回路 | |
| JPS63213130A (ja) | トラツクはずれ検出回路 | |
| JPH0378311A (ja) | データ復調回路 | |
| JPH01303634A (ja) | 光学式情報再生装置 | |
| JPH03144923A (ja) | 光学式情報再生装置 | |
| JPS61222316A (ja) | 再生信号検出回路 | |
| JPS6199943A (ja) | 焦点状態検査装置 | |
| JPS5950680A (ja) | ビデオデイスクプレ−ヤ |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |