DE602004030301D1 - Optischer Kopf und damit versehene Datenverarbeitungseinrichtung - Google Patents
Optischer Kopf und damit versehene DatenverarbeitungseinrichtungInfo
- Publication number
- DE602004030301D1 DE602004030301D1 DE602004030301T DE602004030301T DE602004030301D1 DE 602004030301 D1 DE602004030301 D1 DE 602004030301D1 DE 602004030301 T DE602004030301 T DE 602004030301T DE 602004030301 T DE602004030301 T DE 602004030301T DE 602004030301 D1 DE602004030301 D1 DE 602004030301D1
- Authority
- DE
- Germany
- Prior art keywords
- data processing
- processing device
- device provided
- optical head
- provided therewith
- 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 - Lifetime
Links
- 230000003287 optical effect Effects 0.000 title 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
- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
- G11B7/13—Optical detectors therefor
- G11B7/131—Arrangement of detectors in a multiple array
-
- 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
- G11B7/08511—Methods for track change, selection or preliminary positioning by moving the head with focus 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
- G11B7/09—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
- G11B7/0908—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 focusing only
- G11B7/0909—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 focusing only by astigmatic methods
-
- 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
- G11B7/1372—Lenses
- G11B7/1378—Separate aberration correction lenses; Cylindrical lenses to generate astigmatism; Beam expanders
-
- 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
- G11B7/1381—Non-lens elements for altering the properties of the beam, e.g. knife edges, slits, filters or stops
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Recording Or Reproduction (AREA)
- Optical Head (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003169064 | 2003-06-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE602004030301D1 true DE602004030301D1 (de) | 2011-01-13 |
Family
ID=33296899
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE602004030301T Expired - Lifetime DE602004030301D1 (de) | 2003-06-13 | 2004-06-09 | Optischer Kopf und damit versehene Datenverarbeitungseinrichtung |
Country Status (4)
Country | Link |
---|---|
US (2) | US7443774B2 (de) |
EP (1) | EP1486959B1 (de) |
CN (2) | CN101369433B (de) |
DE (1) | DE602004030301D1 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1486959B1 (de) * | 2003-06-13 | 2010-12-01 | Panasonic Corporation | Optischer Kopf und damit versehene Datenverarbeitungseinrichtung |
JP2007234087A (ja) * | 2006-02-27 | 2007-09-13 | Toshiba Corp | 光ピックアップヘッド装置、光記憶媒体再生装置および光記憶媒体再生方法 |
JP2007257750A (ja) * | 2006-03-24 | 2007-10-04 | Hitachi Media Electoronics Co Ltd | 光ピックアップおよび光ディスク装置 |
WO2008139715A1 (ja) * | 2007-05-08 | 2008-11-20 | Panasonic Corporation | 光学ヘッド、光ディスク装置、コンピュータ、光ディスクプレーヤ及び光ディスクレコーダ |
Family Cites Families (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5251198A (en) * | 1992-05-29 | 1993-10-05 | Strickler James H | Reading device for multi-layered optical information carrier |
CN1071917C (zh) * | 1994-12-28 | 2001-09-26 | 索尼公司 | 光拾波装置 |
JP3380942B2 (ja) | 1994-12-28 | 2003-02-24 | ソニー株式会社 | 多層光ディスク用光ピックアップ装置 |
JP3372413B2 (ja) * | 1995-12-04 | 2003-02-04 | シャープ株式会社 | 光ピックアップ装置及び光記録再生装置 |
US5757758A (en) * | 1995-12-19 | 1998-05-26 | Konica Corporation | Optical pickup apparatus objective lens and converging optical system for optical pickup and optical disk apparatus |
JPH09180244A (ja) * | 1995-12-21 | 1997-07-11 | Victor Co Of Japan Ltd | 2層光ディスクのピックアップ装置 |
JPH09259456A (ja) | 1996-03-25 | 1997-10-03 | Toshiba Corp | 光ヘッド装置 |
JP3488584B2 (ja) * | 1996-11-06 | 2004-01-19 | パイオニア株式会社 | 多層光ディスク記録情報の再生装置 |
JPH1011786A (ja) * | 1996-06-21 | 1998-01-16 | Pioneer Electron Corp | 情報記録媒体の再生用ピックアップ装置 |
CN1169573A (zh) | 1996-06-24 | 1998-01-07 | 声宝股份有限公司 | 用一个光学头读取或储存不同厚度光盘的方法及装置 |
CN1257496C (zh) * | 1996-07-31 | 2006-05-24 | 三洋电机株式会社 | 光盘装置 |
JP3605279B2 (ja) * | 1998-02-25 | 2004-12-22 | パイオニア株式会社 | 光学式ピックアップ |
US6307926B1 (en) * | 1998-05-20 | 2001-10-23 | Sprint Communications Company, L.P. | System for detection and prevention of telecommunications fraud prior to call connection |
KR100680657B1 (ko) * | 1998-10-02 | 2007-02-08 | 소니 가부시끼 가이샤 | 광디스크 재생장치 및 방법 |
AU5704600A (en) * | 1999-06-28 | 2001-01-31 | Sony Corporation | Optical disk recording and/or reproducing device, and focusing servomechanism |
US6438088B1 (en) * | 1999-07-29 | 2002-08-20 | Hitachi Maxell, Ltd. | Light transmission device and apparatus including light transmission device |
US7016269B2 (en) * | 2000-12-21 | 2006-03-21 | Pioneer Corporation | Optical pickup apparatus and focusing control method |
JP2002260250A (ja) | 2001-03-01 | 2002-09-13 | Ricoh Co Ltd | 情報記録再生装置 |
JP4067781B2 (ja) * | 2001-04-13 | 2008-03-26 | 株式会社日立エルジーデータストレージ | ディスク再生装置 |
TWI249157B (en) * | 2001-07-11 | 2006-02-11 | Via Tech Inc | Focusing method of jumping-layer reading data for CD-ROM drive |
US7130250B2 (en) * | 2001-12-14 | 2006-10-31 | Matsushita Electric Industrial Co., Ltd. | Optical head and optical disk apparatus for performing focus pull in |
CN1311447C (zh) | 2002-01-23 | 2007-04-18 | 松下电器产业株式会社 | 光盘装置 |
US7054240B2 (en) * | 2002-03-04 | 2006-05-30 | Zoran Corporation | Method and apparatus for providing focus control on a multi layer disc |
US7307926B2 (en) * | 2002-09-18 | 2007-12-11 | Matsushita Electric Industrial Co., Ltd. | Apparatus and method for tracking control |
JP2004134061A (ja) | 2002-09-18 | 2004-04-30 | Matsushita Electric Ind Co Ltd | トラッキング制御装置およびトラッキング制御方法 |
JP3731660B2 (ja) | 2002-10-28 | 2006-01-05 | 船井電機株式会社 | 光ディスク再生装置 |
CN100380478C (zh) | 2003-04-28 | 2008-04-09 | 松下电器产业株式会社 | 具备光学头的信息记录再生装置以及控制电路 |
EP1486959B1 (de) * | 2003-06-13 | 2010-12-01 | Panasonic Corporation | Optischer Kopf und damit versehene Datenverarbeitungseinrichtung |
-
2004
- 2004-06-09 EP EP04013627A patent/EP1486959B1/de not_active Expired - Lifetime
- 2004-06-09 DE DE602004030301T patent/DE602004030301D1/de not_active Expired - Lifetime
- 2004-06-10 US US10/865,470 patent/US7443774B2/en not_active Expired - Fee Related
- 2004-06-14 CN CN2008100991511A patent/CN101369433B/zh not_active Expired - Fee Related
- 2004-06-14 CN CNB2004100592496A patent/CN100397507C/zh not_active Expired - Fee Related
-
2008
- 2008-09-25 US US12/237,863 patent/US7911908B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CN1573982A (zh) | 2005-02-02 |
EP1486959A2 (de) | 2004-12-15 |
US20040252612A1 (en) | 2004-12-16 |
CN101369433A (zh) | 2009-02-18 |
US7911908B2 (en) | 2011-03-22 |
US20090040894A1 (en) | 2009-02-12 |
CN101369433B (zh) | 2012-10-10 |
EP1486959B1 (de) | 2010-12-01 |
EP1486959A3 (de) | 2007-07-25 |
US7443774B2 (en) | 2008-10-28 |
CN100397507C (zh) | 2008-06-25 |
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