JPH02128216U - - Google Patents
Info
- Publication number
- JPH02128216U JPH02128216U JP1989036858U JP3685889U JPH02128216U JP H02128216 U JPH02128216 U JP H02128216U JP 1989036858 U JP1989036858 U JP 1989036858U JP 3685889 U JP3685889 U JP 3685889U JP H02128216 U JPH02128216 U JP H02128216U
- Authority
- JP
- Japan
- Prior art keywords
- tracking mirror
- information recording
- optical information
- carriage
- sensor mechanism
- 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.)
- Pending
Links
- 230000003287 optical effect Effects 0.000 claims description 14
- 239000004065 semiconductor Substances 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 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
- G11B7/08517—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
- G11B7/08547—Arrangements for positioning the light beam only without moving the head, e.g. using static electro-optical elements
- G11B7/08564—Arrangements for positioning the light beam only without moving the head, e.g. using static electro-optical elements using galvanomirrors
-
- 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
- G11B7/0901—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 track following only
Landscapes
- Optical Recording Or Reproduction (AREA)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989036858U JPH02128216U (US06623731-20030923-C00052.png) | 1989-03-30 | 1989-03-30 | |
| US07/491,173 US5136559A (en) | 1989-03-30 | 1990-03-09 | Optical information recording and reproducing apparatus using tracking mirror |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989036858U JPH02128216U (US06623731-20030923-C00052.png) | 1989-03-30 | 1989-03-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02128216U true JPH02128216U (US06623731-20030923-C00052.png) | 1990-10-23 |
Family
ID=12481485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989036858U Pending JPH02128216U (US06623731-20030923-C00052.png) | 1989-03-30 | 1989-03-30 |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US5136559A (US06623731-20030923-C00052.png) |
| JP (1) | JPH02128216U (US06623731-20030923-C00052.png) |
Families Citing this family (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3107935B2 (ja) * | 1992-12-22 | 2000-11-13 | シャープ株式会社 | 光記録装置および光再生装置並びに光記録再生装置 |
| JP3505282B2 (ja) * | 1995-07-31 | 2004-03-08 | 株式会社東芝 | 光ヘッド装置および情報処理装置 |
| FR2765380A1 (fr) | 1997-06-26 | 1999-01-01 | Asahi Optical Co Ltd | Systeme optique pour lecteur de disque optique |
| DE19828689A1 (de) | 1997-06-27 | 1999-01-07 | Asahi Optical Co Ltd | Spiegelgalvanometereinheit |
| FR2765351B1 (fr) | 1997-06-27 | 2005-04-22 | Asahi Optical Co Ltd | Systeme de detection de rotation pour miroir galvanique |
| US6424068B2 (en) | 1997-06-27 | 2002-07-23 | Asahi Kogaku Kogyo Kabushiki Kaisha | Galvano mirror unit |
| JPH1186328A (ja) | 1997-09-12 | 1999-03-30 | Asahi Optical Co Ltd | 光学式情報記録再生装置 |
| DE19743935A1 (de) | 1997-10-04 | 1999-04-08 | Thomson Brandt Gmbh | Gerät zum Lesen oder Beschreiben optischer Aufzeichnungsträger |
| US6404715B1 (en) | 1997-10-06 | 2002-06-11 | Asahi Kogaku Kogyo Kabushiki Kaisha | Detecting system for detecting rotation angle of deflection mirror |
| US6344917B1 (en) | 1997-10-17 | 2002-02-05 | Asahi Kogaku Kogyo Kabushiki Kaisha | Galvano mirror unit |
| US6421156B1 (en) | 1997-10-17 | 2002-07-16 | Asahi Kogaku Kogyo Kabushiki Kaisha | Galvano mirror unit |
| US6324141B2 (en) | 1997-10-24 | 2001-11-27 | Asahi Kogaku Kogyo Kabushiki Kaisha | Optical system for optical disc drive |
| US6292447B1 (en) | 1997-10-24 | 2001-09-18 | Asahi Kogaku Kogyo Kabushiki Kaisha | Head for optical disc drive |
| US6404485B1 (en) | 1997-10-24 | 2002-06-11 | Asahi Kogaku Kogyo Kabushiki Kaisha | Rotation amount detecting system of deflection mirror for optical disc drive |
| FR2770674B1 (fr) * | 1997-10-31 | 2000-09-29 | Asahi Optical Co Ltd | Systeme optique pour unite de disque optique |
| US6341106B1 (en) | 1997-11-05 | 2002-01-22 | Asahi Kogaku Kogyo Kabushiki Kaisha | Optical disc drive |
| US6278682B1 (en) | 1997-11-08 | 2001-08-21 | Asahi Kogaku Kogyo Kabushiki Kaisha | Optical system for optical disc drive |
| US6650604B1 (en) | 1997-12-27 | 2003-11-18 | Pentax Corporation | Optical head of disk drive |
| JPH11259873A (ja) * | 1998-03-12 | 1999-09-24 | Olympus Optical Co Ltd | 光ピックアップ |
| US6407975B1 (en) | 1998-03-16 | 2002-06-18 | Asahi Kogaku Kogyo Kabushiki Kaisha Of Tokyo | Optical disk drive |
| GB2371818B (en) * | 2001-02-06 | 2004-09-22 | Ruff Pup Ltd | A casing scraper |
| US7876996B1 (en) | 2005-12-15 | 2011-01-25 | Nvidia Corporation | Method and system for time-shifting video |
| US8738382B1 (en) * | 2005-12-16 | 2014-05-27 | Nvidia Corporation | Audio feedback time shift filter system and method |
| US7978588B2 (en) * | 2008-06-04 | 2011-07-12 | David Humphrey | Optical data reading/writing with stationary dish mirror |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55150137A (en) * | 1979-05-09 | 1980-11-21 | Matsushita Electric Ind Co Ltd | Recorder |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR880000999B1 (ko) * | 1981-11-25 | 1988-06-10 | 미쓰다 가쓰시게 | 광학적 정보 기억장치 |
| FR2523351B1 (fr) * | 1982-03-09 | 1989-07-13 | Thomson Csf | Tete optique dans un dispositif d'enregistrement-lecture d'un support d'information |
| US4782474A (en) * | 1985-01-31 | 1988-11-01 | Fujitsu Limited | Tracking servo system for controllably projecting an optical beam on an optical disk |
| JPS61214230A (ja) * | 1985-03-20 | 1986-09-24 | Hitachi Ltd | 光デイスク装置 |
| JPH0685233B2 (ja) * | 1986-06-27 | 1994-10-26 | 株式会社リコー | 半導体レ−ザ−光源装置 |
| US5010537A (en) * | 1987-07-27 | 1991-04-23 | Nikon Corporation | Optical disc device with multi-head slider and tracking control |
| JPS6479943A (en) * | 1987-09-22 | 1989-03-24 | Nippon Columbia | Optical head device |
-
1989
- 1989-03-30 JP JP1989036858U patent/JPH02128216U/ja active Pending
-
1990
- 1990-03-09 US US07/491,173 patent/US5136559A/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55150137A (en) * | 1979-05-09 | 1980-11-21 | Matsushita Electric Ind Co Ltd | Recorder |
Also Published As
| Publication number | Publication date |
|---|---|
| US5136559A (en) | 1992-08-04 |
