CN102414748B - 光盘装置 - Google Patents

光盘装置 Download PDF

Info

Publication number
CN102414748B
CN102414748B CN201080018641.XA CN201080018641A CN102414748B CN 102414748 B CN102414748 B CN 102414748B CN 201080018641 A CN201080018641 A CN 201080018641A CN 102414748 B CN102414748 B CN 102414748B
Authority
CN
China
Prior art keywords
signal
gain
optical disc
resolution
adjustment unit
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
Application number
CN201080018641.XA
Other languages
English (en)
Chinese (zh)
Other versions
CN102414748A (zh
Inventor
中井贤也
大牧正幸
竹下伸夫
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of CN102414748A publication Critical patent/CN102414748A/zh
Application granted granted Critical
Publication of CN102414748B publication Critical patent/CN102414748B/zh
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • G11B7/004—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
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/10009—Improvement or modification of read or write signals
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/10009—Improvement or modification of read or write signals
    • G11B20/10018—Improvement or modification of read or write signals analog processing for digital recording or reproduction
    • G11B20/10027—Improvement or modification of read or write signals analog processing for digital recording or reproduction adjusting the signal strength during recording or reproduction, e.g. variable gain amplifiers
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/10009—Improvement or modification of read or write signals
    • G11B20/10046—Improvement or modification of read or write signals filtering or equalising, e.g. setting the tap weights of an FIR filter
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/10009—Improvement or modification of read or write signals
    • G11B20/10222—Improvement or modification of read or write signals clock-related aspects, e.g. phase or frequency adjustment or bit synchronisation
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/10009—Improvement or modification of read or write signals
    • G11B20/10268—Improvement or modification of read or write signals bit detection or demodulation methods
    • G11B20/10287—Improvement or modification of read or write signals bit detection or demodulation methods using probabilistic methods, e.g. maximum likelihood detectors
    • G11B20/10296—Improvement or modification of read or write signals bit detection or demodulation methods using probabilistic methods, e.g. maximum likelihood detectors using the Viterbi algorithm
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/10009—Improvement or modification of read or write signals
    • G11B20/10305—Improvement or modification of read or write signals signal quality assessment
    • G11B20/10398—Improvement or modification of read or write signals signal quality assessment jitter, timing deviations or phase and frequency errors
    • G11B20/10416—Improvement or modification of read or write signals signal quality assessment jitter, timing deviations or phase and frequency errors by verifying the timing of peak values
    • 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
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers
    • G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2537—Optical discs
    • G11B2220/2595—Super-resolution optical discs, i.e. optical discs wherein the size of marks is below the optical diffraction limit

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Probability & Statistics with Applications (AREA)
  • Optics & Photonics (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Optical Head (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
CN201080018641.XA 2009-05-25 2010-05-21 光盘装置 Expired - Fee Related CN102414748B (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2009125177A JP5404181B2 (ja) 2009-05-25 2009-05-25 光ディスク装置
JP2009-125177 2009-05-25
PCT/JP2010/003430 WO2010137270A1 (ja) 2009-05-25 2010-05-21 光ディスク装置

Publications (2)

Publication Number Publication Date
CN102414748A CN102414748A (zh) 2012-04-11
CN102414748B true CN102414748B (zh) 2014-07-16

Family

ID=43222398

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201080018641.XA Expired - Fee Related CN102414748B (zh) 2009-05-25 2010-05-21 光盘装置

Country Status (5)

Country Link
US (1) US8339909B2 (enExample)
JP (1) JP5404181B2 (enExample)
CN (1) CN102414748B (enExample)
DE (1) DE112010002078B4 (enExample)
WO (1) WO2010137270A1 (enExample)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5404181B2 (ja) 2009-05-25 2014-01-29 三菱電機株式会社 光ディスク装置
CN110415732B (zh) * 2018-04-26 2021-03-30 中国科学院上海光学精密机械研究所 一种超分辨光盘的径向伺服装置及其伺服控制方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6785209B2 (en) * 2000-01-06 2004-08-31 Samsung Electronics Co., Ltd. Optical pickup for improving properties of a reproduction signal
US20070237059A1 (en) * 2006-03-14 2007-10-11 Ryosuke Kasahara Data reproduction method, data reproduction apparatus, optical disk, and data recording/reproduction apparatus
CN101211599A (zh) * 2006-12-28 2008-07-02 株式会社日立制作所 光盘装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5982337U (ja) * 1982-11-22 1984-06-04 ソニー株式会社 光学式ピツクアツプ
JP4024559B2 (ja) * 2002-03-04 2007-12-19 独立行政法人産業技術総合研究所 光再生装置および光再生方法
JP4171969B2 (ja) * 2002-08-15 2008-10-29 独立行政法人産業技術総合研究所 光再生装置
JP5320567B2 (ja) 2007-03-29 2013-10-23 独立行政法人国立高等専門学校機構 光ディスク用再生等化方法および再生等化回路
JP4500949B2 (ja) 2007-05-11 2010-07-14 独立行政法人産業技術総合研究所 光ディスクの信号処理方法及び装置
JP5404181B2 (ja) 2009-05-25 2014-01-29 三菱電機株式会社 光ディスク装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6785209B2 (en) * 2000-01-06 2004-08-31 Samsung Electronics Co., Ltd. Optical pickup for improving properties of a reproduction signal
US20070237059A1 (en) * 2006-03-14 2007-10-11 Ryosuke Kasahara Data reproduction method, data reproduction apparatus, optical disk, and data recording/reproduction apparatus
CN101211599A (zh) * 2006-12-28 2008-07-02 株式会社日立制作所 光盘装置

Also Published As

Publication number Publication date
US20120014237A1 (en) 2012-01-19
WO2010137270A1 (ja) 2010-12-02
US8339909B2 (en) 2012-12-25
JP2010272188A (ja) 2010-12-02
DE112010002078B4 (de) 2021-10-28
DE112010002078T5 (de) 2012-09-13
JP5404181B2 (ja) 2014-01-29
CN102414748A (zh) 2012-04-11

Similar Documents

Publication Publication Date Title
JP5045448B2 (ja) 信号処理回路、信号処理方法、再生装置
EP3267440B1 (en) Data detection device, reproduction device, and data detection method
JP4903081B2 (ja) 光ディスク媒体及びトラッキング方法
JP5766281B2 (ja) 信号処理装置、信号処理方法、及び光ディスク装置
CN102414748B (zh) 光盘装置
US20140064050A1 (en) Skew detection method and optical disc device
CN103366766A (zh) 记录装置及杂散光信号分量消除方法
CN101211599B (zh) 光盘装置
JP4387422B2 (ja) 信号再生装置
CN102034494B (zh) 光盘驱动器
US9990952B2 (en) Optical medium reproducing device and optical medium reproducing method
JP4877933B2 (ja) 情報再生装置
JP2017162537A (ja) 光ディスク装置
JP2002298363A (ja) クロストーク除去装置及び情報再生装置
JP5320567B2 (ja) 光ディスク用再生等化方法および再生等化回路
JP6036798B2 (ja) データ検出装置、再生装置、データ検出方法
WO2016075919A1 (ja) 光媒体再生装置、光媒体再生方法及び光媒体
JP2002197666A (ja) 記録情報再生装置
Chen et al. System design for double-layer Blu-ray Disc recorders
JP2009508279A (ja) 非理想的光学担体の再生可能性を向上する方法
JP2004241086A (ja) 光磁気記録媒体
JP2011216170A (ja) 情報再生装置および情報再生方法
JP2009295242A (ja) データ記録方法、光ディスク記録再生装置及び光ディスク
JP2009009664A (ja) 光ディスク装置の回路

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
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: 20140716