DE69124148T2 - Gerät für optische Platten - Google Patents
Gerät für optische PlattenInfo
- Publication number
- DE69124148T2 DE69124148T2 DE69124148T DE69124148T DE69124148T2 DE 69124148 T2 DE69124148 T2 DE 69124148T2 DE 69124148 T DE69124148 T DE 69124148T DE 69124148 T DE69124148 T DE 69124148T DE 69124148 T2 DE69124148 T2 DE 69124148T2
- Authority
- DE
- Germany
- Prior art keywords
- optical disk
- disk device
- optical
- disk
- 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
- 230000003287 optical effect Effects 0.000 title 1
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
- G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
- G11B7/08505—Methods for track change, selection or preliminary positioning by moving the head
- G11B7/08529—Methods and circuits to control the velocity of the head as it traverses the tracks
- G11B7/08535—Methods and circuits to control the velocity of the head as it traverses the tracks to maintain constant velocity during the traverse
-
- 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
- G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
- G11B7/08505—Methods for track change, selection or preliminary positioning by moving the head
- G11B7/08517—Methods for track change, selection or preliminary positioning by moving the head with tracking pull-in only
-
- 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
- G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
- G11B7/0857—Arrangements for mechanically moving the whole head
- G11B7/08582—Sled-type positioners
- G11B7/08588—Sled-type positioners with position sensing by means of an auxiliary system using an external scale
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2167358A JP2656371B2 (ja) | 1990-06-26 | 1990-06-26 | 光ディスク装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69124148D1 DE69124148D1 (de) | 1997-02-27 |
DE69124148T2 true DE69124148T2 (de) | 1997-04-30 |
Family
ID=15848240
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69124148T Expired - Fee Related DE69124148T2 (de) | 1990-06-26 | 1991-06-25 | Gerät für optische Platten |
Country Status (4)
Country | Link |
---|---|
US (1) | US5241522A (de) |
EP (1) | EP0463959B1 (de) |
JP (1) | JP2656371B2 (de) |
DE (1) | DE69124148T2 (de) |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5309417A (en) * | 1991-10-09 | 1994-05-03 | Nippon Conlux Co., Ltd. | Information recording/reproducing apparatus for optical information recording medium |
JPH05234286A (ja) * | 1991-12-26 | 1993-09-10 | Internatl Business Mach Corp <Ibm> | アクチュエータ制御装置及び方法 |
US5566152A (en) * | 1992-10-21 | 1996-10-15 | Matsushita Electric Industrial Co., Ltd. | Tracking control system with correction capabilities for correcting disagreement between optical axes |
DE69323397T2 (de) * | 1992-11-20 | 1999-08-26 | Koninkl Philips Electronics Nv | Abtastvorrichtung mit einer Zweistufensteuerung zum Positionieren eines Abtastpunktes |
EP0599392B1 (de) * | 1992-11-20 | 1999-02-03 | Koninklijke Philips Electronics N.V. | Abtastvorrichtung mit einer Zweistufensteuerung zum Positionieren eines Abtastpunktes |
JPH06243485A (ja) * | 1993-02-19 | 1994-09-02 | Ricoh Co Ltd | 情報記録装置 |
US5600613A (en) * | 1993-10-27 | 1997-02-04 | Canon Kabushiki Kaisha | Optical information recording/reproduction apparatus and method using an ultrasonic wave motor to drive one of an optical head and a recording medium |
JPH0817151A (ja) * | 1994-04-27 | 1996-01-19 | Sharp Corp | 情報記録再生装置のモータ制御装置 |
US5623464A (en) * | 1994-09-29 | 1997-04-22 | Fujitsu Limited | Optical disk apparatus and seek control method |
US5675562A (en) | 1995-03-20 | 1997-10-07 | Fujitsu Limited | Seek control method in optical storage device |
US5742568A (en) * | 1995-06-09 | 1998-04-21 | Olympus Optical Co., Ltd. | Tracking controller and seek controller for optical recording device |
JP2795233B2 (ja) * | 1995-09-29 | 1998-09-10 | 日本電気株式会社 | 光ヘッド装置 |
JP3633095B2 (ja) * | 1996-04-22 | 2005-03-30 | 富士通株式会社 | 光学的記憶装置 |
KR100288781B1 (ko) * | 1997-11-27 | 2001-05-02 | 구자홍 | 광픽업의 이동거리 결정장치 및 결정방법 |
US6768705B2 (en) * | 1998-07-17 | 2004-07-27 | Fujitsu Limited | Optical disk drive including a positioner and means for compensating for an eccentricity of an optical disk |
JP2000251269A (ja) * | 1999-02-26 | 2000-09-14 | Sony Corp | 情報記録再生装置および方法並びに伝送媒体 |
US7522480B2 (en) | 2001-01-25 | 2009-04-21 | Dphi Acquisitions, Inc. | Digital tracking servo system with multi-track seek with an acceleration clamp |
US7079459B2 (en) * | 2001-01-25 | 2006-07-18 | Dphi Acquisitions, Inc. | System and method for performing a spin motor startup operation |
JP4185851B2 (ja) | 2003-01-27 | 2008-11-26 | セイコーエプソン株式会社 | 玉型加工用粘着テープの粘着力評価方法 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4361007A (en) * | 1980-03-05 | 1982-11-30 | Burlington Industries, Inc. | Open end spun slub yarn method and apparatus |
US4627038A (en) * | 1984-07-05 | 1986-12-02 | Storage Technology Partners Ii | Optical disk storage unit having a servo system with different velocity inputs |
JPH0673188B2 (ja) * | 1986-03-31 | 1994-09-14 | 松下電器産業株式会社 | 光デイスクのアクセス装置 |
JPS6310324A (ja) * | 1986-07-01 | 1988-01-16 | Mitsubishi Electric Corp | 光デイスク駆動装置 |
US4864552A (en) * | 1986-08-29 | 1989-09-05 | Laser Magnetic Storage International Company | Driving signal for coarse servo employing sampled offset signal |
JPH0679378B2 (ja) * | 1986-12-15 | 1994-10-05 | ソニー株式会社 | 光学式記録再生装置のトラツキングサ−ボ回路 |
JPS63269324A (ja) * | 1987-04-28 | 1988-11-07 | Mitsubishi Electric Corp | 光デイスク駆動装置 |
JPH0654542B2 (ja) * | 1987-08-28 | 1994-07-20 | 富士通株式会社 | 光学記憶装置 |
KR920009196B1 (ko) * | 1987-08-29 | 1992-10-14 | 후지쓰가부시끼가이샤 | 광학기록 트랙을 억세싱하는 방법 |
US5090001A (en) * | 1988-06-06 | 1992-02-18 | Olympus Optical Co., Ltd. | Information recording/reproducing apparatus |
-
1990
- 1990-06-26 JP JP2167358A patent/JP2656371B2/ja not_active Expired - Fee Related
-
1991
- 1991-06-25 DE DE69124148T patent/DE69124148T2/de not_active Expired - Fee Related
- 1991-06-25 US US07/720,693 patent/US5241522A/en not_active Expired - Lifetime
- 1991-06-25 EP EP91401713A patent/EP0463959B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JP2656371B2 (ja) | 1997-09-24 |
JPH0460923A (ja) | 1992-02-26 |
EP0463959B1 (de) | 1997-01-15 |
DE69124148D1 (de) | 1997-02-27 |
EP0463959A1 (de) | 1992-01-02 |
US5241522A (en) | 1993-08-31 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: PANASONIC CORP., KADOMA, OSAKA, JP |
|
8339 | Ceased/non-payment of the annual fee |