DE69936040D1 - Optisches Abtastgerät zur Verminderung des Übersprechsignals zwischen benachbarten Spuren - Google Patents

Optisches Abtastgerät zur Verminderung des Übersprechsignals zwischen benachbarten Spuren

Info

Publication number
DE69936040D1
DE69936040D1 DE69936040T DE69936040T DE69936040D1 DE 69936040 D1 DE69936040 D1 DE 69936040D1 DE 69936040 T DE69936040 T DE 69936040T DE 69936040 T DE69936040 T DE 69936040T DE 69936040 D1 DE69936040 D1 DE 69936040D1
Authority
DE
Germany
Prior art keywords
reducing
scanning device
optical scanning
adjacent tracks
crosstalk signal
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
Application number
DE69936040T
Other languages
English (en)
Other versions
DE69936040T2 (de
Inventor
Chong-Sam Chung
Young-Man Ahn
Tae-Kyung Kim
Hea-Jung Suh
Seung-Tae Jung
Chul-Woo Lee
In-Sik Park
Dong-Ho Shin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Samsung Electronics Co Ltd
Original Assignee
Samsung Electronics Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Application granted granted Critical
Publication of DE69936040D1 publication Critical patent/DE69936040D1/de
Publication of DE69936040T2 publication Critical patent/DE69936040T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • G11B7/09—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
    • 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
    • G11B7/004—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
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/13—Optical detectors therefor
    • G11B7/133—Shape of individual detector elements
    • 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
    • G11B7/1353—Diffractive elements, e.g. holograms or gratings
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Head (AREA)
  • Optical Recording Or Reproduction (AREA)
DE69936040T 1999-02-12 1999-12-23 Optisches Abtastgerät zur Verminderung des Übersprechsignals zwischen benachbarten Spuren Expired - Lifetime DE69936040T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR9904982 1999-02-12
KR1019990004982A KR100601599B1 (ko) 1999-02-12 1999-02-12 인접트랙에 의한 크로스토크를 저감할 수 있는 광픽업장치

Publications (2)

Publication Number Publication Date
DE69936040D1 true DE69936040D1 (de) 2007-06-21
DE69936040T2 DE69936040T2 (de) 2008-01-17

Family

ID=19574211

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69936040T Expired - Lifetime DE69936040T2 (de) 1999-02-12 1999-12-23 Optisches Abtastgerät zur Verminderung des Übersprechsignals zwischen benachbarten Spuren

Country Status (6)

Country Link
EP (1) EP1028412B1 (de)
JP (1) JP2000242962A (de)
KR (1) KR100601599B1 (de)
CN (1) CN1183523C (de)
DE (1) DE69936040T2 (de)
TW (1) TW455858B (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10223201C1 (de) * 2002-05-24 2003-05-28 Fraunhofer Ges Forschung Optikerfassungsvorrichtung
DE10223202A1 (de) 2002-05-24 2003-12-11 Fraunhofer Ges Forschung Photodiode
WO2014203526A1 (ja) * 2013-06-19 2014-12-24 パナソニックＩｐマネジメント株式会社 光情報装置及び情報処理装置
JP5810300B2 (ja) * 2013-06-21 2015-11-11 パナソニックＩｐマネジメント株式会社 光ディスク情報装置及び情報処理装置
CN104406921B (zh) * 2014-12-15 2017-02-08 中国农业大学 一种光学检测系统和方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0750531B2 (ja) * 1986-04-16 1995-05-31 株式会社日立製作所 光学式情報再生装置
JPS6396744A (ja) * 1986-10-09 1988-04-27 Teac Co 光検出器
JP2710709B2 (ja) * 1991-08-01 1998-02-10 シャープ株式会社 光記録再生装置
JPH05242512A (ja) * 1991-12-19 1993-09-21 Matsushita Electric Ind Co Ltd 光ディスク装置
JPH06103580A (ja) * 1992-09-18 1994-04-15 Matsushita Electric Ind Co Ltd 光ディスク装置
US5740141A (en) * 1993-03-09 1998-04-14 Matsushita Electric Industrial Co., Ltd. Signal processing device for an optical information reproducing apparatus
JPH10198964A (ja) * 1997-01-08 1998-07-31 Sony Corp ディスク再生装置

Also Published As

Publication number Publication date
TW455858B (en) 2001-09-21
KR100601599B1 (ko) 2006-07-14
CN1263337A (zh) 2000-08-16
CN1183523C (zh) 2005-01-05
EP1028412B1 (de) 2007-05-09
DE69936040T2 (de) 2008-01-17
EP1028412A1 (de) 2000-08-16
JP2000242962A (ja) 2000-09-08
KR20000056001A (ko) 2000-09-15

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition