CN1627397A - 用于数字存储媒体的读取装置 - Google Patents
用于数字存储媒体的读取装置 Download PDFInfo
- Publication number
- CN1627397A CN1627397A CNA2004100473694A CN200410047369A CN1627397A CN 1627397 A CN1627397 A CN 1627397A CN A2004100473694 A CNA2004100473694 A CN A2004100473694A CN 200410047369 A CN200410047369 A CN 200410047369A CN 1627397 A CN1627397 A CN 1627397A
- Authority
- CN
- China
- Prior art keywords
- light beam
- holographic
- signal
- reflection
- digital storage
- 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.)
- Granted
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
- G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
- G11B7/005—Reproducing
-
- 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
- G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
- G11B7/0065—Recording, reproducing or erasing by using optical interference patterns, e.g. holograms
-
- 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
- G11B7/1275—Two or more lasers having different wavelengths
-
- 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
- G11B7/1356—Double or multiple prisms, i.e. having two or more prisms in cooperation
-
- 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
- G11B7/1365—Separate or integrated refractive elements, e.g. wave plates
- G11B7/1367—Stepped phase plates
-
- 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
- G11B2007/0006—Recording, reproducing or erasing systems characterised by the structure or type of the carrier adapted for scanning different types of carrier, e.g. CD & DVD
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Recording Or Reproduction (AREA)
- Optical Head (AREA)
- Holo Graphy (AREA)
Abstract
Description
Claims (20)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020030089681A KR100579598B1 (ko) | 2003-12-10 | 2003-12-10 | 홀로그래픽 롬 및 디지털 데이터의 디스크와 이에 관련된콤보 픽업 장치 |
KR0089681/2003 | 2003-12-10 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1627397A true CN1627397A (zh) | 2005-06-15 |
CN1319060C CN1319060C (zh) | 2007-05-30 |
Family
ID=34511202
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB2004100473694A Expired - Fee Related CN1319060C (zh) | 2003-12-10 | 2004-06-02 | 用于数字存储媒体的读取装置 |
Country Status (5)
Country | Link |
---|---|
US (1) | US7158274B2 (zh) |
EP (1) | EP1542215A3 (zh) |
JP (1) | JP3924290B2 (zh) |
KR (1) | KR100579598B1 (zh) |
CN (1) | CN1319060C (zh) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100801505B1 (ko) * | 2006-02-27 | 2008-02-12 | 엘지전자 주식회사 | 비트방식의 홀로그래픽 저장 및 이종 데이터 저장장치 |
US7724631B2 (en) * | 2007-02-13 | 2010-05-25 | International Business Machines Corporation | Reflective holographic storage media with control information in underlying DVD reflective layer |
TWI335029B (en) * | 2007-04-11 | 2010-12-21 | Ind Tech Res Inst | System for recording and reproducing holographic storage which has tracking servo projection |
JP5125351B2 (ja) * | 2007-09-25 | 2013-01-23 | 株式会社日立製作所 | 光情報記録再生装置 |
JP5075556B2 (ja) * | 2007-09-28 | 2012-11-21 | 株式会社日立製作所 | 光情報記録/再生装置及びディスク判別方法 |
US8274874B2 (en) | 2008-02-04 | 2012-09-25 | International Business Machines Corporation | Apparatus, system, and method for locating and fast-searching units of digital information in volume, optical-storage disks |
US10922880B2 (en) * | 2018-03-07 | 2021-02-16 | The United States Of America As Represented By The Secretary Of The Army | LADAR and positional awareness system and methods using a line at the intersection of multicolor planes of laser light with detector |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3240846B2 (ja) * | 1994-08-12 | 2001-12-25 | 松下電器産業株式会社 | 光ヘッド |
JPH10312574A (ja) * | 1997-05-09 | 1998-11-24 | Ricoh Co Ltd | 光ディスク装置 |
KR19990020314A (ko) * | 1997-08-30 | 1999-03-25 | 윤종용 | 서로다른 기록밀도의 다수의 기록면을 가지는 디스크와 디스크 판별방법과 디스크 재생장치 |
US6738322B2 (en) * | 1999-07-29 | 2004-05-18 | Research Investment Network, Inc. | Optical data storage system with focus and tracking error correction |
KR100386158B1 (ko) * | 2000-11-01 | 2003-06-02 | 주식회사 대우일렉트로닉스 | Cd플레이어 및 dvd플레이어와 호환이 가능한홀로그래픽 디지털 저장 시스템 |
JP4132715B2 (ja) * | 2001-04-19 | 2008-08-13 | 株式会社大宇エレクトロニクス | ホログラフィーデジタルデータ記憶システム |
HU0104183D0 (en) | 2001-10-09 | 2001-12-28 | Optilink Ab | Method and apparatus for the engryption of data |
JP2003308631A (ja) * | 2002-04-09 | 2003-10-31 | Ricoh Co Ltd | ハイブリッド光ディスク |
-
2003
- 2003-12-10 KR KR1020030089681A patent/KR100579598B1/ko not_active IP Right Cessation
-
2004
- 2004-03-31 JP JP2004102641A patent/JP3924290B2/ja not_active Expired - Fee Related
- 2004-05-18 US US10/847,313 patent/US7158274B2/en not_active Expired - Fee Related
- 2004-05-19 EP EP04011927A patent/EP1542215A3/en not_active Withdrawn
- 2004-06-02 CN CNB2004100473694A patent/CN1319060C/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP1542215A3 (en) | 2007-09-05 |
EP1542215A2 (en) | 2005-06-15 |
KR100579598B1 (ko) | 2006-05-15 |
CN1319060C (zh) | 2007-05-30 |
US20050128542A1 (en) | 2005-06-16 |
US7158274B2 (en) | 2007-01-02 |
KR20050056641A (ko) | 2005-06-16 |
JP3924290B2 (ja) | 2007-06-06 |
JP2005174525A (ja) | 2005-06-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
ASS | Succession or assignment of patent right |
Owner name: FENGYE VISION TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: DAEWOO ELECTRONICS CO., LTD. Effective date: 20130417 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20130417 Address after: Ontario Patentee after: Fengye Vision Technology Co., Ltd. Address before: Seoul, South Kerean Patentee before: Daewoo Electronics Co., Ltd. |
|
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070530 Termination date: 20150602 |
|
EXPY | Termination of patent right or utility model |