JPH0454294B2 - - Google Patents
Info
- Publication number
- JPH0454294B2 JPH0454294B2 JP61296081A JP29608186A JPH0454294B2 JP H0454294 B2 JPH0454294 B2 JP H0454294B2 JP 61296081 A JP61296081 A JP 61296081A JP 29608186 A JP29608186 A JP 29608186A JP H0454294 B2 JPH0454294 B2 JP H0454294B2
- Authority
- JP
- Japan
- Prior art keywords
- optical disk
- laser beam
- difference
- signal
- generating
- 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 106
- 238000001514 detection method Methods 0.000 claims description 29
- 239000004065 semiconductor Substances 0.000 claims description 12
- 230000007246 mechanism Effects 0.000 description 7
- 230000006870 function Effects 0.000 description 6
- 230000001133 acceleration Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 201000009310 astigmatism Diseases 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
Landscapes
- 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 |
|---|---|---|---|
| JP29608186A JPS62157331A (ja) | 1986-12-12 | 1986-12-12 | 光デイスク装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29608186A JPS62157331A (ja) | 1986-12-12 | 1986-12-12 | 光デイスク装置 |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56066479A Division JPS57181436A (en) | 1981-05-01 | 1981-05-01 | Optical disc device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62157331A JPS62157331A (ja) | 1987-07-13 |
| JPH0454294B2 true JPH0454294B2 (fr) | 1992-08-31 |
Family
ID=17828871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29608186A Granted JPS62157331A (ja) | 1986-12-12 | 1986-12-12 | 光デイスク装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62157331A (fr) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2815111B2 (ja) * | 1988-10-11 | 1998-10-27 | キヤノン株式会社 | 光学的情報記録再生装置 |
| JP4705933B2 (ja) * | 2007-06-20 | 2011-06-22 | ヤンマー株式会社 | コンバインの排藁搬送装置 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5555443A (en) * | 1978-10-17 | 1980-04-23 | Philips Nv | Optical reading unit |
-
1986
- 1986-12-12 JP JP29608186A patent/JPS62157331A/ja active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5555443A (en) * | 1978-10-17 | 1980-04-23 | Philips Nv | Optical reading unit |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62157331A (ja) | 1987-07-13 |
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