JPS6446237A - Optical information recording and reproducing device - Google Patents
Optical information recording and reproducing deviceInfo
- Publication number
- JPS6446237A JPS6446237A JP62200037A JP20003787A JPS6446237A JP S6446237 A JPS6446237 A JP S6446237A JP 62200037 A JP62200037 A JP 62200037A JP 20003787 A JP20003787 A JP 20003787A JP S6446237 A JPS6446237 A JP S6446237A
- Authority
- JP
- Japan
- Prior art keywords
- servo
- signal
- sample
- light source
- information recording
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
- G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B7/0941—Methods and circuits for servo gain or phase compensation during operation
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/002—Recording, reproducing or erasing systems characterised by the shape or form of the carrier
- G11B7/0033—Recording, reproducing or erasing systems characterised by the shape or form of the carrier with cards or other card-like flat carriers, e.g. flat sheets of optical film
Landscapes
- Optical Recording Or Reproduction (AREA)
- Automatic Focus Adjustment (AREA)
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62200037A JPS6446237A (en) | 1987-08-12 | 1987-08-12 | Optical information recording and reproducing device |
EP88306977A EP0303373B1 (en) | 1987-08-12 | 1988-07-28 | Optical information recording apparatus provided with means for sampling and holding a servo signal when the intensity of a light beam is varied |
DE8888306977T DE3871280D1 (de) | 1987-08-12 | 1988-07-28 | Geraet zur optischen informationsaufzeichnung mit mitteln zum feststellen und halten von servosignalen, wenn die intensitaet eines lichtstrahles veraendert wird. |
CA000573474A CA1313912C (en) | 1987-08-12 | 1988-07-29 | Optical information recording apparatus provided with means for sampling and holding a servo signal when the intensity of a light bem is varied |
US07/794,644 US5150345A (en) | 1987-08-12 | 1991-11-18 | Optical information recording apparatus provided with means for sampling and holding a servo signal when the intensity of a light beam varies between intensity levels |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62200037A JPS6446237A (en) | 1987-08-12 | 1987-08-12 | Optical information recording and reproducing device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6446237A true JPS6446237A (en) | 1989-02-20 |
JPH0547895B2 JPH0547895B2 (ja) | 1993-07-20 |
Family
ID=16417775
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62200037A Granted JPS6446237A (en) | 1987-08-12 | 1987-08-12 | Optical information recording and reproducing device |
Country Status (5)
Country | Link |
---|---|
US (1) | US5150345A (ja) |
EP (1) | EP0303373B1 (ja) |
JP (1) | JPS6446237A (ja) |
CA (1) | CA1313912C (ja) |
DE (1) | DE3871280D1 (ja) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2954404B2 (ja) * | 1991-10-09 | 1999-09-27 | 株式会社日本コンラックス | 光学的情報記録再生装置 |
EP0565376B1 (en) * | 1992-04-10 | 1998-07-22 | Canon Kabushiki Kaisha | Optical information recording apparatus and method capable of coping with a plurality of card-like recording mediums of different reflectances |
EP0793220B1 (en) * | 1992-07-31 | 2001-05-16 | Matsushita Electric Industrial Co., Ltd. | Optical data recording/reproducing apparatus |
US5436880A (en) * | 1994-01-10 | 1995-07-25 | Eastman Kodak Company | Laser power control in an optical recording system using partial correction of reflected signal error |
JPH08147699A (ja) * | 1994-11-22 | 1996-06-07 | Sony Corp | 情報記録再生装置 |
JPH0950632A (ja) * | 1995-08-03 | 1997-02-18 | Fujitsu Ltd | ピックアップ制御方法及び装置並びにディスク装置 |
CN1127724C (zh) * | 1997-04-25 | 2003-11-12 | 皇家菲利浦电子有限公司 | 扫描光可读记录载体的装置和检测单元 |
JP3503513B2 (ja) * | 1999-02-22 | 2004-03-08 | ヤマハ株式会社 | 光ディスク記録方法及び装置 |
US8559282B2 (en) * | 2008-03-20 | 2013-10-15 | Mediatek Inc. | Average servo control method and system, and target level determination method applied in thereof |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59185038A (ja) * | 1983-04-04 | 1984-10-20 | Trio Kenwood Corp | フオ−カスエラ−検出装置 |
JPS61156540A (ja) * | 1984-12-27 | 1986-07-16 | Ricoh Co Ltd | 光情報記録再生装置 |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5922290B2 (ja) * | 1975-12-26 | 1984-05-25 | 松下電器産業株式会社 | コウガクシキジヨウホウキロクサイセイソウチ |
JPS52134704A (en) * | 1976-05-06 | 1977-11-11 | Teac Co | Optical recorder/reproducer unit |
JPS5774837A (en) * | 1980-10-25 | 1982-05-11 | Olympus Optical Co Ltd | Signal detection system of optical information reproducing device |
FR2511537B1 (fr) * | 1981-08-14 | 1986-09-05 | Thomson Csf | Dispositif optique de suivi de piste a echantillonnage |
JPS58215736A (ja) * | 1982-06-07 | 1983-12-15 | Pioneer Electronic Corp | 光学式記録情報読取装置におけるサ−ボ装置 |
JPS5911543A (ja) * | 1982-07-10 | 1984-01-21 | Sony Corp | 光学式デイスク再生装置 |
JPS59116939A (ja) * | 1982-12-23 | 1984-07-06 | Olympus Optical Co Ltd | 光学式記録再生装置 |
JPS59167861A (ja) * | 1983-03-14 | 1984-09-21 | Sony Corp | 光学式デイスク・プレ−ヤ−のトラツキング制御装置 |
US4661942A (en) * | 1983-08-26 | 1987-04-28 | Mitsubishi Denki Kabushiki Kaisha | Control apparatus for information storage and retrieval system |
NL8303564A (nl) * | 1983-10-17 | 1985-05-17 | Philips Nv | Inrichting voor het weergeven van informatie van een optisch uitleesbare registratiedrager. |
JPH0690804B2 (ja) * | 1984-01-20 | 1994-11-14 | 株式会社日立製作所 | 光学的情報記録再生装置 |
JPS61117737A (ja) * | 1984-11-13 | 1986-06-05 | Pioneer Electronic Corp | フオ−カスサ−ボ装置 |
GB2172138A (en) * | 1984-12-29 | 1986-09-10 | Canon Kk | Optical recording-reproducing apparatus |
CA1267974A (en) * | 1984-12-31 | 1990-04-17 | Kenichi Suzuki | Optical information recording and reproducing apparatus |
DE3618720A1 (de) * | 1985-06-05 | 1986-12-11 | Hitachi, Ltd., Tokio/Tokyo | Verfahren und vorrichtung zur spurnachfuehrung bei bildplatten |
NL8502802A (nl) * | 1985-10-14 | 1987-05-04 | Philips Nv | Inrichting voor het uitlezen en/of inschrijven van een optische spoorvormige informatiestruktuur. |
US4701603A (en) * | 1985-10-17 | 1987-10-20 | Optical Disc Corporation | Focus control system for optical information recorder or player |
-
1987
- 1987-08-12 JP JP62200037A patent/JPS6446237A/ja active Granted
-
1988
- 1988-07-28 DE DE8888306977T patent/DE3871280D1/de not_active Expired - Lifetime
- 1988-07-28 EP EP88306977A patent/EP0303373B1/en not_active Expired
- 1988-07-29 CA CA000573474A patent/CA1313912C/en not_active Expired - Lifetime
-
1991
- 1991-11-18 US US07/794,644 patent/US5150345A/en not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59185038A (ja) * | 1983-04-04 | 1984-10-20 | Trio Kenwood Corp | フオ−カスエラ−検出装置 |
JPS61156540A (ja) * | 1984-12-27 | 1986-07-16 | Ricoh Co Ltd | 光情報記録再生装置 |
Also Published As
Publication number | Publication date |
---|---|
EP0303373A1 (en) | 1989-02-15 |
CA1313912C (en) | 1993-02-23 |
US5150345A (en) | 1992-09-22 |
EP0303373B1 (en) | 1992-05-20 |
JPH0547895B2 (ja) | 1993-07-20 |
DE3871280D1 (de) | 1992-06-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |