DE69317844D1 - Optische Abtastvorrichtung - Google Patents
Optische AbtastvorrichtungInfo
- Publication number
- DE69317844D1 DE69317844D1 DE69317844T DE69317844T DE69317844D1 DE 69317844 D1 DE69317844 D1 DE 69317844D1 DE 69317844 T DE69317844 T DE 69317844T DE 69317844 T DE69317844 T DE 69317844T DE 69317844 D1 DE69317844 D1 DE 69317844D1
- Authority
- DE
- Germany
- Prior art keywords
- optical scanner
- scanner
- optical
- 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 - Fee Related
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
- G11B7/0943—Methods and circuits for performing mathematical operations on individual detector segment outputs
-
- 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
- G11B7/0908—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 for focusing only
Landscapes
- Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Optical Recording Or Reproduction (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4262126A JPH06111344A (ja) | 1992-09-30 | 1992-09-30 | 光ピックアップ装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69317844D1 true DE69317844D1 (de) | 1998-05-14 |
DE69317844T2 DE69317844T2 (de) | 1998-09-17 |
Family
ID=17371416
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69317844T Expired - Fee Related DE69317844T2 (de) | 1992-09-30 | 1993-09-22 | Optische Abtastvorrichtung |
Country Status (4)
Country | Link |
---|---|
US (1) | US5610883A (de) |
EP (1) | EP0590851B1 (de) |
JP (1) | JPH06111344A (de) |
DE (1) | DE69317844T2 (de) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE69621781T2 (de) * | 1995-12-27 | 2003-03-13 | Koninkl Philips Electronics Nv | Gerät zur wiedergabe eines optisch lesbaren aufzeichnungsträgers |
EP0812457B1 (de) * | 1995-12-27 | 2002-06-26 | Koninklijke Philips Electronics N.V. | Gerät zur wiedergabe eines optisch lesbaren aufzeichnungsträgers |
EP0845142A1 (de) * | 1995-12-27 | 1998-06-03 | Koninklijke Philips Electronics N.V. | Gerät zur wiedergabe eines optisch lesbaren aufzeichnungsträgers |
JPH10116427A (ja) * | 1996-10-09 | 1998-05-06 | Sony Corp | サーボ信号処理装置及び光ディスク装置 |
US6292441B1 (en) * | 1997-04-16 | 2001-09-18 | Matsushita Electric Industrial Co., Ltd. | Optical head device, optical information apparatus, and method for detecting focus error signal |
TW444201B (en) * | 1998-02-16 | 2001-07-01 | Hitachi Ltd | Optical head |
US6057163A (en) * | 1998-04-28 | 2000-05-02 | Turner Designs | Luminescence and fluorescence quantitation system |
US6339565B1 (en) * | 1999-03-31 | 2002-01-15 | Lsi Logic Corporation | Non-linear center-error generator for DVD servo control |
WO2004053866A1 (en) * | 2002-12-12 | 2004-06-24 | Koninklijke Philips Electronics N.V. | Bit detector having partitioned photo detector |
JP2004220683A (ja) | 2003-01-14 | 2004-08-05 | Funai Electric Co Ltd | 光ディスク再生装置と同装置に適用される光検出信号のレベル調整方法 |
US20090028021A1 (en) * | 2004-06-01 | 2009-01-29 | Koninklijke Philips Electronics, N.V. | Radial To Focus Cross Talk Cancellation In Optical Storage Systems |
US20090154306A1 (en) * | 2006-06-01 | 2009-06-18 | Koninklijke Philips Electronics N.V. | Optimizing focus crosstalk cancelling |
JP5635309B2 (ja) * | 2010-06-18 | 2014-12-03 | 株式会社ニューフレアテクノロジー | 検査装置および検査方法 |
KR101286634B1 (ko) * | 2012-01-13 | 2013-07-22 | 도시바삼성스토리지테크놀러지코리아 주식회사 | 광 검출 소자 및 이를 적용하는 광 픽업 장치 및 광 디스크 드라이브 |
CN104239719B (zh) * | 2014-09-19 | 2017-06-13 | 中国人民解放军海军航空工程学院 | 系统误差下基于双重模糊拓扑的编队目标航迹关联算法 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4074204A (en) * | 1976-11-22 | 1978-02-14 | Van Alstine Audio Systems, Inc. | Equalizing amplifier |
JPH0756699B2 (ja) * | 1985-09-25 | 1995-06-14 | 株式会社日立製作所 | 焦点位置制御装置 |
JPS6282525A (ja) * | 1985-10-08 | 1987-04-16 | Toshiba Corp | 光学ヘツド |
US5189651A (en) * | 1986-05-12 | 1993-02-23 | Pioneer Electronic Corporation | Optical system in magneto-optical recording and reproducing device |
JPH0276134A (ja) * | 1988-09-13 | 1990-03-15 | Mitsubishi Electric Corp | 光学式ヘッド装置 |
JP2657413B2 (ja) * | 1989-03-03 | 1997-09-24 | パイオニア株式会社 | 光ヘッド |
-
1992
- 1992-09-30 JP JP4262126A patent/JPH06111344A/ja active Pending
-
1993
- 1993-09-22 EP EP93307473A patent/EP0590851B1/de not_active Expired - Lifetime
- 1993-09-22 DE DE69317844T patent/DE69317844T2/de not_active Expired - Fee Related
-
1995
- 1995-11-13 US US08/558,927 patent/US5610883A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0590851A1 (de) | 1994-04-06 |
US5610883A (en) | 1997-03-11 |
DE69317844T2 (de) | 1998-09-17 |
JPH06111344A (ja) | 1994-04-22 |
EP0590851B1 (de) | 1998-04-08 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8320 | Willingness to grant licences declared (paragraph 23) | ||
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |