JP4079658B2 - ２値化ウォブル信号を生成する回路、ライトクロック生成回路、２値化ウォブル信号を生成する方法、ライトクロック生成方法及び光ディスク装置 - Google Patents

２値化ウォブル信号を生成する回路、ライトクロック生成回路、２値化ウォブル信号を生成する方法、ライトクロック生成方法及び光ディスク装置 Download PDF

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Publication number
JP4079658B2
JP4079658B2 JP2002058517A JP2002058517A JP4079658B2 JP 4079658 B2 JP4079658 B2 JP 4079658B2 JP 2002058517 A JP2002058517 A JP 2002058517A JP 2002058517 A JP2002058517 A JP 2002058517A JP 4079658 B2 JP4079658 B2 JP 4079658B2
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Japan
Prior art keywords
gain
circuit
wobble signal
write clock
recording
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
JP2002058517A
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English (en)
Japanese (ja)
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JP2003257122A (ja
JP2003257122A5 (enExample
Inventor
博史 前川
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP2002058517A priority Critical patent/JP4079658B2/ja
Priority to PCT/JP2003/002585 priority patent/WO2003075264A1/ja
Priority to EP20030743615 priority patent/EP1482487A1/en
Priority to US10/506,215 priority patent/US7061845B2/en
Publication of JP2003257122A publication Critical patent/JP2003257122A/ja
Publication of JP2003257122A5 publication Critical patent/JP2003257122A5/ja
Priority to US11/410,099 priority patent/US20060187784A1/en
Application granted granted Critical
Publication of JP4079658B2 publication Critical patent/JP4079658B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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    • 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
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
    • G11B27/24—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by sensing features on the record carrier other than the transducing track ; sensing signals or marks recorded by another method than the main recording
    • 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
    • G11B7/0053—Reproducing non-user data, e.g. wobbled address, prepits, BCA
    • 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
    • G11B2220/21—Disc-shaped record carriers characterised in that the disc is of read-only, rewritable, or recordable type
    • G11B2220/215—Recordable discs
    • G11B2220/216—Rewritable discs
    • 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
    • G11B2220/2562—DVDs [digital versatile discs]; Digital video discs; MMCDs; HDCDs
    • 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
    • G11B7/2407—Tracks or pits; Shape, structure or physical properties thereof
    • G11B7/24073—Tracks
    • G11B7/24082—Meandering

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
JP2002058517A 2002-03-05 2002-03-05 ２値化ウォブル信号を生成する回路、ライトクロック生成回路、２値化ウォブル信号を生成する方法、ライトクロック生成方法及び光ディスク装置 Expired - Fee Related JP4079658B2 (ja)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP2002058517A JP4079658B2 (ja) 2002-03-05 2002-03-05 ２値化ウォブル信号を生成する回路、ライトクロック生成回路、２値化ウォブル信号を生成する方法、ライトクロック生成方法及び光ディスク装置
PCT/JP2003/002585 WO2003075264A1 (en) 2002-03-05 2003-03-05 Light clock generating circuit and optical disk unit
EP20030743615 EP1482487A1 (en) 2002-03-05 2003-03-05 Light clock generating circuit and optical disk unit
US10/506,215 US7061845B2 (en) 2002-03-05 2003-03-05 Write clock generating circuit and optical disk apparatus
US11/410,099 US20060187784A1 (en) 2002-03-05 2006-04-25 Write clock generation circuit and optical disk apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002058517A JP4079658B2 (ja) 2002-03-05 2002-03-05 ２値化ウォブル信号を生成する回路、ライトクロック生成回路、２値化ウォブル信号を生成する方法、ライトクロック生成方法及び光ディスク装置

Publications (3)

Publication Number Publication Date
JP2003257122A JP2003257122A (ja) 2003-09-12
JP2003257122A5 JP2003257122A5 (enExample) 2005-07-14
JP4079658B2 true JP4079658B2 (ja) 2008-04-23

Family

ID=27784705

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2002058517A Expired - Fee Related JP4079658B2 (ja) 2002-03-05 2002-03-05 ２値化ウォブル信号を生成する回路、ライトクロック生成回路、２値化ウォブル信号を生成する方法、ライトクロック生成方法及び光ディスク装置

Country Status (4)

Country Link
US (2) US7061845B2 (enExample)
EP (1) EP1482487A1 (enExample)
JP (1) JP4079658B2 (enExample)
WO (1) WO2003075264A1 (enExample)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4079658B2 (ja) * 2002-03-05 2008-04-23 株式会社リコー ２値化ウォブル信号を生成する回路、ライトクロック生成回路、２値化ウォブル信号を生成する方法、ライトクロック生成方法及び光ディスク装置
TWI332208B (en) * 2003-01-28 2010-10-21 Tian Holdings Llc Method and apparatus for generating wobble signal
JP3853806B2 (ja) * 2004-06-24 2006-12-06 シャープ株式会社 光ディスク装置
CN100435220C (zh) * 2004-12-06 2008-11-19 建兴电子科技股份有限公司 可补偿摇摆定址信号的光盘机及其方法
US7729214B1 (en) * 2005-08-09 2010-06-01 Mediatek Inc. Method and apparatus applied in optical disc drive for obtaining push-pull signal via adjusting amplifying gain according to fluctuating signals generated from photo detector of pick-up head
US7978578B2 (en) * 2006-03-09 2011-07-12 Nec Corporation Optical disc device and defect detection method for optical disc medium

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2628265B1 (fr) * 1987-03-06 1990-12-21 Thomson Csf Antenne directive a transducteurs multiples notamment pour sonar
FR2682833B1 (fr) * 1991-10-18 1993-12-03 Thomson Csf Filtre a ondes de surface et a trajet acoustique replie.
JP3051526B2 (ja) * 1991-11-08 2000-06-12 パイオニア株式会社 光学式記録再生装置における光ヘッドのサーボ装置
US5703427A (en) * 1993-03-19 1997-12-30 Thomson-Csf Surface-wave distributed acoustic reflection transducer and filter including such a transducer
JP3761904B2 (ja) * 1993-08-30 2006-03-29 キヤノン株式会社 サーボル−プの自動利得制御回路
JP3458502B2 (ja) * 1995-01-11 2003-10-20 ソニー株式会社 光ディスク装置
FR2739232B1 (fr) * 1995-09-26 1997-10-24 Thomson Csf Filtre a ondes acoustiques de surface utilisant le couplage de trois voies acoustiques
FR2740933B1 (fr) * 1995-11-03 1997-11-28 Thomson Csf Sonde acoustique et procede de realisation
FR2740908B1 (fr) * 1995-11-07 1997-11-28 Thomson Csf Transducteur a ondes acoustiques de surface attaque en differentiel
JPH10293926A (ja) * 1997-02-21 1998-11-04 Pioneer Electron Corp 記録用クロック信号発生装置
FR2762458B1 (fr) * 1997-04-18 1999-07-09 Thomson Csf Dispositif a ondes acoustiques de surface a couplage par proximite a entrees/sorties differentielles
FR2774826B1 (fr) * 1998-02-06 2000-05-05 Thomson Csf Filtre a resonateurs a ondes acoustiques de surface
JP3720197B2 (ja) 1998-08-20 2005-11-24 パイオニア株式会社 位相比較装置
FR2785473B1 (fr) * 1998-10-30 2001-01-26 Thomson Csf Filtre faibles pertes a ondes acoustiques de surface sur substrat de quartz de coupe optimisee
JP2001134943A (ja) * 1999-11-05 2001-05-18 Yamaha Corp 光ディスク記録装置のプッシュプル信号処理回路およびウォブル抽出回路ならびにプリピット検出回路
JP4422855B2 (ja) * 2000-03-16 2010-02-24 株式会社日立製作所 ウォブル信号再生回路
JP2001297454A (ja) * 2000-04-14 2001-10-26 Matsushita Electric Ind Co Ltd 光ディスク装置
JP4079658B2 (ja) * 2002-03-05 2008-04-23 株式会社リコー ２値化ウォブル信号を生成する回路、ライトクロック生成回路、２値化ウォブル信号を生成する方法、ライトクロック生成方法及び光ディスク装置

Also Published As

Publication number Publication date
EP1482487A1 (en) 2004-12-01
JP2003257122A (ja) 2003-09-12
US20050105424A1 (en) 2005-05-19
US7061845B2 (en) 2006-06-13
US20060187784A1 (en) 2006-08-24
WO2003075264A1 (en) 2003-09-12

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