DE69023870D1 - Spurfolgkreis für optische Scheibeeinheit. - Google Patents
Spurfolgkreis für optische Scheibeeinheit.Info
- Publication number
- DE69023870D1 DE69023870D1 DE69023870T DE69023870T DE69023870D1 DE 69023870 D1 DE69023870 D1 DE 69023870D1 DE 69023870 T DE69023870 T DE 69023870T DE 69023870 T DE69023870 T DE 69023870T DE 69023870 D1 DE69023870 D1 DE 69023870D1
- Authority
- DE
- Germany
- Prior art keywords
- optical disc
- disc unit
- tracking circle
- tracking
- circle
- 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
- G11B7/085—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
-
- 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
-
- 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
-
- 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
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1253982A JPH03116545A (ja) | 1989-09-29 | 1989-09-29 | 光ディスク装置のトラックアクセス制御回路 |
JP32191189A JP2733349B2 (ja) | 1989-12-12 | 1989-12-12 | 光ディスク装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69023870D1 true DE69023870D1 (de) | 1996-01-11 |
DE69023870T2 DE69023870T2 (de) | 1996-04-25 |
Family
ID=26541488
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69023870T Expired - Fee Related DE69023870T2 (de) | 1989-09-29 | 1990-09-28 | Spurfolgkreis für optische Scheibeeinheit. |
Country Status (4)
Country | Link |
---|---|
US (1) | US5033037A (de) |
EP (1) | EP0420696B1 (de) |
KR (1) | KR940003551B1 (de) |
DE (1) | DE69023870T2 (de) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5182736A (en) * | 1989-10-12 | 1993-01-26 | Fujitsu Limited | Deceleration control system for positioning an optical head in an optical disk unit |
DE69123636T2 (de) * | 1990-05-17 | 1997-04-17 | Fujitsu Ltd | Such-Positionierungssystem für Scheibengerät |
JPH0778890B2 (ja) * | 1990-10-03 | 1995-08-23 | インターナシヨナル・ビジネス・マシーンズ・コーポレーシヨン | ディスク記憶装置 |
US5428590A (en) * | 1991-06-04 | 1995-06-27 | Canon Kabushiki Kaisha | Information recording and reproducing apparatus and method in which an information recording or reproducing head seeks a desired track on a recording medium |
US5291110A (en) * | 1991-10-31 | 1994-03-01 | Integral Peripherals, Inc. | Low acoustic noise seeking method and apparatus |
JPH05209263A (ja) * | 1992-01-13 | 1993-08-20 | Nec Corp | スパッタ合金膜の製造方法及びその装置 |
US5495455A (en) * | 1992-04-28 | 1996-02-27 | Sony Corporation | Magneto-optical disk recording and reading apparatus and method wherein the recording head is controlled in the radial direction of the disk to a desired position |
JPH0612684A (ja) * | 1992-06-30 | 1994-01-21 | Mitsubishi Electric Corp | ヘッド駆動装置 |
US5444682A (en) * | 1993-09-07 | 1995-08-22 | Matsushita Electric Industrial Co., Ltd. | Tracking control apparatus |
US5566148A (en) * | 1993-12-27 | 1996-10-15 | Kabushiki Kaisha Toshiba | Optical disk tracking system for searching a target track based on a table of compensation reference velocity |
JPH0887751A (ja) * | 1994-09-19 | 1996-04-02 | Toshiba Corp | 光学ヘッド装置アクセス機構 |
US5742568A (en) * | 1995-06-09 | 1998-04-21 | Olympus Optical Co., Ltd. | Tracking controller and seek controller for optical recording device |
CN1142545C (zh) * | 1996-03-26 | 2004-03-17 | 松下电器产业株式会社 | 光学式记录再生装置 |
DE19955251A1 (de) * | 1999-11-17 | 2001-05-23 | Bosch Gmbh Robert | Verfahren zur Regelung der Nachführung einer Abtastvorrichtung und Laufwerk dafür |
US6744702B2 (en) | 2000-09-29 | 2004-06-01 | Kabushiki Kaisha Toshiba | Apparatus for accessing recording disk by controlling the coarse and precise actuators |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57181482A (en) * | 1981-05-01 | 1982-11-08 | Toshiba Corp | Disc device |
KR880000999B1 (ko) * | 1981-11-25 | 1988-06-10 | 미쓰다 가쓰시게 | 광학적 정보 기억장치 |
JPS58166567A (ja) * | 1982-03-26 | 1983-10-01 | Matsushita Electric Ind Co Ltd | 情報トラックの検索装置 |
JPS6026621U (ja) * | 1983-07-28 | 1985-02-22 | アルプス電気株式会社 | 光学式ヘツド位置制御装置 |
US4858214A (en) * | 1985-02-15 | 1989-08-15 | Canon Kabushiki Kaisha | Tracking control apparatus |
JP2666248B2 (ja) * | 1985-08-03 | 1997-10-22 | オリンパス光学工業株式会社 | 光学的情報記録再生装置 |
JPS62188035A (ja) * | 1986-02-13 | 1987-08-17 | Toshiba Corp | 光学式ピツクアツプの結露除去装置 |
US4955011A (en) * | 1986-04-10 | 1990-09-04 | Canon Kabushiki Kaisha | Information recording/reproducing apparatus with control device for maintaining head velocity below a critical velocity |
KR910003458B1 (ko) * | 1986-12-02 | 1991-05-31 | 미쓰비시뎅끼 가부시끼가이샤 | 광디스크의 구동장치 |
JPS63225974A (ja) * | 1986-12-15 | 1988-09-20 | Matsushita Graphic Commun Syst Inc | 振動抑制方法 |
JPS63171431A (ja) * | 1987-01-07 | 1988-07-15 | Mitsubishi Electric Corp | 光デイスク駆動装置 |
JPH0748257B2 (ja) * | 1987-05-07 | 1995-05-24 | 富士通株式会社 | 光ディスク装置のマルチトラックジャンプ回路 |
JP2593157B2 (ja) * | 1987-07-08 | 1997-03-26 | 富士通株式会社 | 情報記憶装置 |
JPH01105335A (ja) * | 1987-07-31 | 1989-04-21 | Sony Corp | 光ディスク装置 |
US5077719A (en) * | 1987-08-28 | 1991-12-31 | Fujitsu Limited | Optical disk access system |
DE3887601T2 (de) * | 1987-08-31 | 1994-06-09 | Canon Kk | Informationsaufnahme- und/oder -wiedergabegerät mit Mitteln zur Feststellung aller Spurfolgefehler. |
JPH01173324A (ja) * | 1987-12-28 | 1989-07-10 | Toshiba Corp | 情報処理装置 |
DE68918714T2 (de) * | 1988-01-19 | 1995-02-16 | Fujitsu Ltd | Spurzugangsregelsystem. |
-
1990
- 1990-09-28 EP EP90310689A patent/EP0420696B1/de not_active Expired - Lifetime
- 1990-09-28 DE DE69023870T patent/DE69023870T2/de not_active Expired - Fee Related
- 1990-09-28 US US07/589,557 patent/US5033037A/en not_active Expired - Lifetime
- 1990-09-29 KR KR1019900015621A patent/KR940003551B1/ko not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
EP0420696A2 (de) | 1991-04-03 |
US5033037A (en) | 1991-07-16 |
EP0420696A3 (en) | 1992-05-13 |
EP0420696B1 (de) | 1995-11-29 |
KR940003551B1 (ko) | 1994-04-23 |
DE69023870T2 (de) | 1996-04-25 |
KR910006935A (ko) | 1991-04-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |