DE69834602D1 - Optische Spurdetektionsvorrichtung - Google Patents
Optische SpurdetektionsvorrichtungInfo
- Publication number
- DE69834602D1 DE69834602D1 DE69834602T DE69834602T DE69834602D1 DE 69834602 D1 DE69834602 D1 DE 69834602D1 DE 69834602 T DE69834602 T DE 69834602T DE 69834602 T DE69834602 T DE 69834602T DE 69834602 D1 DE69834602 D1 DE 69834602D1
- Authority
- DE
- Germany
- Prior art keywords
- detection device
- track detection
- optical track
- optical
- track
- 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
- G11B21/00—Head arrangements not specific to the method of recording or reproducing
- G11B21/02—Driving or moving of heads
- G11B21/08—Track changing or selecting during transducing operation
- G11B21/081—Access to indexed tracks or parts of continuous track
- G11B21/083—Access to indexed tracks or parts of continuous track on discs
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US902398 | 1997-07-29 | ||
US08/902,398 US5991249A (en) | 1997-07-29 | 1997-07-29 | Optical track sensing device |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69834602D1 true DE69834602D1 (de) | 2006-06-29 |
DE69834602T2 DE69834602T2 (de) | 2007-05-03 |
Family
ID=25415810
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69834602T Expired - Fee Related DE69834602T2 (de) | 1997-07-29 | 1998-07-20 | Optische Spurdetektionsvorrichtung |
Country Status (4)
Country | Link |
---|---|
US (1) | US5991249A (de) |
EP (1) | EP0895239B1 (de) |
JP (1) | JP3025237B2 (de) |
DE (1) | DE69834602T2 (de) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6201239B1 (en) * | 1997-01-21 | 2001-03-13 | Olympus Optical Co., Ltd. | Optical encoder |
US7082006B1 (en) * | 1999-08-10 | 2006-07-25 | Storage Technology Corporation | Compact optical tracking system for magnetic tape |
DE19942323B4 (de) * | 1999-09-06 | 2007-03-01 | Leopold Kostal Gmbh & Co. Kg | Drehwinkelsensor |
US6836451B1 (en) * | 2000-06-12 | 2004-12-28 | Infineon Technologies, Ag | Lensless optical servo system for an optically assisted disk drive |
US6723980B2 (en) | 2001-07-16 | 2004-04-20 | Wai-Hon Lee | Position sensor with grating to detect moving object with periodic pattern |
JP2005524050A (ja) * | 2001-08-30 | 2005-08-11 | マイクロイー システムズ コーポレイション | 高調波抑制光検出器アレイ |
US7002137B2 (en) * | 2001-08-30 | 2006-02-21 | Gsi Lumonics Corporation | Reference point talbot encoder |
JP2005526951A (ja) * | 2001-08-30 | 2005-09-08 | ジーエスアイ・ルモニックス・コーポレーション | 基準点タルボットエンコーダ |
JP3720751B2 (ja) * | 2001-10-23 | 2005-11-30 | オリンパス株式会社 | 光学式エンコーダ |
US7193204B2 (en) * | 2002-07-08 | 2007-03-20 | Gsi Group Corporation | Multi-track optical encoder employing beam divider |
WO2005027104A1 (en) * | 2003-09-18 | 2005-03-24 | Koninklijke Philips Electronics N.V. | Storage medium, apparatus for retrieving data from such a storage medium |
US7321113B2 (en) * | 2003-11-17 | 2008-01-22 | Gsi Group Corporation | Precision material-handling robot employing high-resolution, compact absolute encoder |
CN100516780C (zh) * | 2003-11-17 | 2009-07-22 | Gsi集团公司 | 采用串联多比特内插子编码器的绝对编码器 |
US20060043278A1 (en) * | 2004-08-30 | 2006-03-02 | Honeywell International Inc. | VCSEL pin sensor |
US20070024865A1 (en) * | 2005-07-26 | 2007-02-01 | Mitchell Donald K | Optical encoder having slanted optical detector elements for harmonic suppression |
CN102890060B (zh) * | 2012-08-26 | 2016-04-27 | 贵州大学 | 利用反射泰铂效应成像的方法及其应用及装置 |
US11237024B2 (en) * | 2018-10-08 | 2022-02-01 | Pixart Imaging Inc. | Optical encoder with covered photo diode |
Family Cites Families (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL7403468A (nl) * | 1974-03-15 | 1975-09-17 | Philips Nv | Inrichting voor het bepalen van de verplaat- sing van een onderdeel van een werktuig. |
JPS5652247A (en) * | 1979-10-01 | 1981-05-11 | Hiroaki Kikuchi | Residence |
NL8005258A (nl) * | 1980-09-22 | 1982-04-16 | Philips Nv | Interferometer. |
JPS59168835U (ja) * | 1983-04-27 | 1984-11-12 | パイオニア株式会社 | 光学式記録情報読取装置 |
US4906839A (en) * | 1986-05-01 | 1990-03-06 | Pencom International Corp. | Hybrid surface emitting laser and detector |
US4757197A (en) * | 1986-05-01 | 1988-07-12 | Lee Wai Hon | Semiconductor laser and detector device |
US4794585A (en) * | 1986-05-06 | 1988-12-27 | Lee Wai Hon | Optical head having a hologram lens and polarizers for use with magneto-optic medium |
US4731772A (en) * | 1986-05-06 | 1988-03-15 | Lee Wai Hon | Optical head using hologram lens for both beam splitting and focus error detection functions |
US5001694A (en) * | 1986-05-06 | 1991-03-19 | Pencom International Corp. | Tracking and focus actuator for a holographic optical head |
US4918675A (en) * | 1986-12-04 | 1990-04-17 | Pencom International Corporation | Magneto-optical head with separate optical paths for error and data detection |
JPS63191468A (ja) * | 1987-02-04 | 1988-08-08 | Dainippon Screen Mfg Co Ltd | 異方性結像光学系を用いた画像読取装置 |
US4843494A (en) * | 1987-10-15 | 1989-06-27 | Polaroid Corporation | Data storage apparatus using optical servo tracks |
US4834485A (en) * | 1988-01-04 | 1989-05-30 | Pencom International Corporation | Integrated fiber optics transmitter/receiver device |
US4958245A (en) * | 1988-04-07 | 1990-09-18 | Insite Peripherals, Inc. | Apparatus and method for optical servo control with media having information storage and servo control regions of different reflectivities |
US4961123A (en) * | 1988-06-03 | 1990-10-02 | Insite Peripherals | Magnetic information media storage with optical servo tracks |
US5043775A (en) * | 1989-02-21 | 1991-08-27 | Wai-Hon Lee | Semiconductor laser assembly |
US5050153A (en) * | 1989-06-06 | 1991-09-17 | Wai-Hon Lee | Semiconductor laser optical head assembly |
EP0452793B1 (de) * | 1990-04-12 | 1998-01-28 | Matsushita Electric Industrial Co., Ltd. | Optischer Kopf mit hologrammverbundener Objektivlinse |
US5156999A (en) * | 1990-06-08 | 1992-10-20 | Wai-Hon Lee | Packaging method for semiconductor laser/detector devices |
US5136152A (en) * | 1990-12-19 | 1992-08-04 | Hoetron, Inc. | Hybrid optical pickup with integrated power emission and reading photodetectors |
JPH04298869A (ja) * | 1991-03-27 | 1992-10-22 | Hitachi Maxell Ltd | フレキシブル磁気デイスクを用いる記録再生装置ならびにその磁気デイスクを用いる記録再生方法 |
US5361244A (en) * | 1991-04-10 | 1994-11-01 | Hitachi, Ltd. | Optical head and information recording apparatus |
DE69127086T2 (de) * | 1991-12-12 | 1998-02-12 | Ibm | Servosignalenaufzeichnungsmethode für Magnetplatteneinheit, und Magnetplatteneinheit |
US5285062A (en) * | 1992-04-14 | 1994-02-08 | Hoetron, Inc. | Laser/detector hybrid with mirror source and diffracted return beam |
US5311378A (en) * | 1992-05-05 | 1994-05-10 | Insite Peripherals, Inc. | Dual very-high density magnetic head assembly with optical servo positioning for very high density floppy disk recording and high density format compatability |
US5481515A (en) * | 1992-06-02 | 1996-01-02 | Hitachi, Ltd. | Optical information storage medium control apparatus |
WO1994011867A1 (en) * | 1992-11-06 | 1994-05-26 | Mitsubishi Kasei Corporation | Magnetic recording medium, its recording/reproducing method and information processor which uses the medium and method |
EP0598592B1 (de) * | 1992-11-17 | 1999-09-01 | Seiko Epson Corporation | Optischer Abtastkopf |
-
1997
- 1997-07-29 US US08/902,398 patent/US5991249A/en not_active Expired - Lifetime
-
1998
- 1998-07-20 DE DE69834602T patent/DE69834602T2/de not_active Expired - Fee Related
- 1998-07-20 EP EP98305762A patent/EP0895239B1/de not_active Revoked
- 1998-07-29 JP JP10213665A patent/JP3025237B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH11120724A (ja) | 1999-04-30 |
DE69834602T2 (de) | 2007-05-03 |
EP0895239B1 (de) | 2006-05-24 |
EP0895239A3 (de) | 1999-03-17 |
US5991249A (en) | 1999-11-23 |
JP3025237B2 (ja) | 2000-03-27 |
EP0895239A2 (de) | 1999-02-03 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8363 | Opposition against the patent | ||
8339 | Ceased/non-payment of the annual fee |