CN1176459C - 双面写设备 - Google Patents
双面写设备 Download PDFInfo
- Publication number
- CN1176459C CN1176459C CNB981259952A CN98125995A CN1176459C CN 1176459 C CN1176459 C CN 1176459C CN B981259952 A CNB981259952 A CN B981259952A CN 98125995 A CN98125995 A CN 98125995A CN 1176459 C CN1176459 C CN 1176459C
- Authority
- CN
- China
- Prior art keywords
- laser
- present
- information
- medium
- road
- 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
Images
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
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/26—Apparatus or processes specially adapted for the manufacture of record carriers
-
- 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
- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
- G11B7/125—Optical beam sources therefor, e.g. laser control circuitry specially adapted for optical storage devices; Modulators, e.g. means for controlling the size or intensity of optical spots or optical traces
- G11B7/126—Circuits, methods or arrangements for laser control or stabilisation
-
- 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
- G11B7/0904—Dithered tracking systems
-
- 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
- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
- G11B7/125—Optical beam sources therefor, e.g. laser control circuitry specially adapted for optical storage devices; Modulators, e.g. means for controlling the size or intensity of optical spots or optical traces
- G11B7/127—Lasers; Multiple laser arrays
-
- 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
- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
- G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
- G11B7/1362—Mirrors
-
- 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
- G11B2007/0003—Recording, reproducing or erasing systems characterised by the structure or type of the carrier
- G11B2007/0009—Recording, reproducing or erasing systems characterised by the structure or type of the carrier for carriers having data stored in three dimensions, e.g. volume storage
- G11B2007/0013—Recording, reproducing or erasing systems characterised by the structure or type of the carrier for carriers having data stored in three dimensions, e.g. volume storage for carriers having multiple discrete layers
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Recording Or Reproduction (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Optical Head (AREA)
- Optical Record Carriers And Manufacture Thereof (AREA)
Abstract
Description
Claims (5)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/023,722 | 1998-02-13 | ||
US09/023,722 US6049512A (en) | 1998-02-13 | 1998-02-13 | In a system for creating, reading and writing on rotatable information storage media, an apparatus for two-sided writing |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1226056A CN1226056A (zh) | 1999-08-18 |
CN1176459C true CN1176459C (zh) | 2004-11-17 |
Family
ID=21816823
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB981259952A Expired - Fee Related CN1176459C (zh) | 1998-02-13 | 1998-12-31 | 双面写设备 |
Country Status (7)
Country | Link |
---|---|
US (1) | US6049512A (zh) |
JP (1) | JP3238136B2 (zh) |
KR (1) | KR100302982B1 (zh) |
CN (1) | CN1176459C (zh) |
MY (1) | MY116792A (zh) |
SG (1) | SG87789A1 (zh) |
TW (1) | TW417101B (zh) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4410012B2 (ja) * | 2004-03-30 | 2010-02-03 | 株式会社リコー | 光記録/再生システム |
TW200717500A (en) * | 2005-07-07 | 2007-05-01 | Koninkl Philips Electronics Nv | Scanning of multi-layer optical record carriers |
JP4250633B2 (ja) | 2006-03-28 | 2009-04-08 | 株式会社東芝 | 光情報記録媒体、光情報記録装置および光情報記録方法 |
US20080065904A1 (en) * | 2006-09-12 | 2008-03-13 | Global Discware | Reproduction of compact discs and DVDs |
CN109215686B (zh) * | 2017-07-06 | 2020-09-08 | 光宝科技股份有限公司 | 光盘片及判断光盘片是否放反的方法 |
Family Cites Families (83)
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US3946367A (en) * | 1972-12-20 | 1976-03-23 | Videonics Of Hawaii, Inc. | Three dimensional electro-optical retrieval system |
US4164754A (en) * | 1974-07-16 | 1979-08-14 | Thomson-Brandt | Method of manufacturing a die designed to duplicate a video frequency signal recording |
US4090031A (en) * | 1974-10-21 | 1978-05-16 | Eli S. Jacobs | Multi-layered opitcal data records and playback apparatus |
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US4190775A (en) * | 1975-02-18 | 1980-02-26 | Agency Of Industrial Science & Technology | Optical memory playback apparatus |
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NL7803069A (nl) * | 1978-03-22 | 1979-09-25 | Philips Nv | Meerlaags informatieschijf. |
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US4301445A (en) * | 1979-12-10 | 1981-11-17 | General Electric Company | Communication system and method having wide dynamic range digital gain control |
CA1132258A (en) * | 1980-05-12 | 1982-09-21 | Herman W. Willemsen | Scanning head for an optical disc system |
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US4358774A (en) * | 1980-07-14 | 1982-11-09 | Discovision Associates | Apparatus and method for controlling focus in a recording system |
JPS57130240A (en) * | 1981-02-05 | 1982-08-12 | Olympus Optical Co Ltd | Optical information recording and reproducing device and information recording medium for it |
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US4449138A (en) * | 1981-04-15 | 1984-05-15 | Tokyo Shibaura Denki Kabushiki Kaisha | Information recording medium |
US4481550A (en) * | 1982-04-26 | 1984-11-06 | Datacopy Corporation | Method and apparatus for following a recorded data track with a read head |
US4475179A (en) * | 1982-06-30 | 1984-10-02 | Eastman Kodak Company | Optical disc write/read methods and apparatus with improved focus and tracking control |
DE3482347D1 (de) * | 1983-12-14 | 1990-06-28 | Hitachi Ltd | Geraet zum optischen aufzeichnen von informationen. |
US4700336A (en) * | 1984-06-19 | 1987-10-13 | Matsushita Electric Industrial Co., Ltd. | Optical recording and playback apparatus using plural light spots |
JPS619848A (ja) * | 1984-06-23 | 1986-01-17 | Oki Electric Ind Co Ltd | 光記録媒体の案内溝形成方法 |
US4621351A (en) * | 1984-07-06 | 1986-11-04 | Storage Technology Partners Ii | Beam alignment system |
DE3690169C2 (zh) * | 1985-04-10 | 1990-10-04 | Matsushita Electric Industrial Co., Ltd., Kadoma, Osaka, Jp | |
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US4760565A (en) * | 1986-09-15 | 1988-07-26 | International Business Machines Corporation | High speed track access for optical disks using acousto-optic deflector |
JP2611220B2 (ja) * | 1987-04-15 | 1997-05-21 | ソニー株式会社 | レーザ再生装置 |
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US5077719A (en) * | 1987-08-28 | 1991-12-31 | Fujitsu Limited | Optical disk access system |
DE3732903A1 (de) * | 1987-09-30 | 1989-04-13 | Thomson Brandt Gmbh | Optische abtastvorrichtung |
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FR2642530A1 (fr) * | 1989-01-30 | 1990-08-03 | Seiko Epson Corp | Mecanisme de focalisation et tete optique |
US5715157A (en) * | 1989-05-03 | 1998-02-03 | Deutsche Thomson-Brandt Gmbh | Apparatus for braking a spindle motor in a disc playback system |
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US5892739A (en) * | 1998-02-13 | 1999-04-06 | International Business Machines Corporation | In system for creating reading and writing on rotatable information storage media, an apparatus for multilayer source positioning using the laser source as a detector |
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-
1998
- 1998-02-13 US US09/023,722 patent/US6049512A/en not_active Expired - Lifetime
- 1998-12-31 CN CNB981259952A patent/CN1176459C/zh not_active Expired - Fee Related
-
1999
- 1999-01-14 KR KR1019990000882A patent/KR100302982B1/ko not_active IP Right Cessation
- 1999-01-15 MY MYPI99000176A patent/MY116792A/en unknown
- 1999-02-01 TW TW088101468A patent/TW417101B/zh not_active IP Right Cessation
- 1999-02-04 JP JP02690699A patent/JP3238136B2/ja not_active Expired - Lifetime
- 1999-02-10 SG SG9900533A patent/SG87789A1/en unknown
Also Published As
Publication number | Publication date |
---|---|
TW417101B (en) | 2001-01-01 |
KR19990072253A (ko) | 1999-09-27 |
US6049512A (en) | 2000-04-11 |
JPH11273112A (ja) | 1999-10-08 |
KR100302982B1 (ko) | 2001-09-26 |
SG87789A1 (en) | 2002-04-16 |
MY116792A (en) | 2004-03-31 |
JP3238136B2 (ja) | 2001-12-10 |
CN1226056A (zh) | 1999-08-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C06 | Publication | ||
PB01 | Publication | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
ASS | Succession or assignment of patent right |
Owner name: MEDIATEK INC. Free format text: FORMER OWNER: INTERNATIONAL BUSINESS MACHINE CORP. Effective date: 20060303 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20060303 Address after: Hsinchu Science Park, Taiwan, China Patentee after: MediaTek.Inc Address before: American New York Patentee before: International Business Machines Corp. |
|
CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20041117 Termination date: 20161231 |