JPH0450655B2 - - Google Patents
Info
- Publication number
- JPH0450655B2 JPH0450655B2 JP29622185A JP29622185A JPH0450655B2 JP H0450655 B2 JPH0450655 B2 JP H0450655B2 JP 29622185 A JP29622185 A JP 29622185A JP 29622185 A JP29622185 A JP 29622185A JP H0450655 B2 JPH0450655 B2 JP H0450655B2
- Authority
- JP
- Japan
- Prior art keywords
- optical disk
- signal
- rotational speed
- rotation
- speed
- 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
- 230000003287 optical effect Effects 0.000 claims description 45
- 238000001514 detection method Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
Landscapes
- Rotational Drive Of Disk (AREA)
- Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
- Control Of Velocity Or Acceleration (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP29622185A JPS62154234A (ja) | 1985-12-26 | 1985-12-26 | 光学式ディスクの回転制御装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP29622185A JPS62154234A (ja) | 1985-12-26 | 1985-12-26 | 光学式ディスクの回転制御装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS62154234A JPS62154234A (ja) | 1987-07-09 |
JPH0450655B2 true JPH0450655B2 (pl) | 1992-08-14 |
Family
ID=17830744
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP29622185A Granted JPS62154234A (ja) | 1985-12-26 | 1985-12-26 | 光学式ディスクの回転制御装置 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS62154234A (pl) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06301984A (ja) | 1993-04-12 | 1994-10-28 | Olympus Optical Co Ltd | 光学的情報記録及び/又は再生装置 |
JP4497155B2 (ja) * | 2006-12-07 | 2010-07-07 | 株式会社日立製作所 | 光ディスク装置およびフォーカス引き込み方法 |
-
1985
- 1985-12-26 JP JP29622185A patent/JPS62154234A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS62154234A (ja) | 1987-07-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |