TW200501080A - Method and device for detecting land pre-pits - Google Patents

Method and device for detecting land pre-pits

Info

Publication number
TW200501080A
TW200501080A TW093110591A TW93110591A TW200501080A TW 200501080 A TW200501080 A TW 200501080A TW 093110591 A TW093110591 A TW 093110591A TW 93110591 A TW93110591 A TW 93110591A TW 200501080 A TW200501080 A TW 200501080A
Authority
TW
Taiwan
Prior art keywords
land pre
dvd
variations
sample
reference value
Prior art date
Application number
TW093110591A
Other languages
English (en)
Inventor
Christian Buchler
Original Assignee
Thomson Licensing Sa
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 Thomson Licensing Sa filed Critical Thomson Licensing Sa
Publication of TW200501080A publication Critical patent/TW200501080A/zh

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
    • 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
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/14—Digital recording or reproducing using self-clocking codes
    • G11B20/1403—Digital recording or reproducing using self-clocking codes characterised by the use of two levels
    • 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
    • G11B2220/21—Disc-shaped record carriers characterised in that the disc is of read-only, rewritable, or recordable type
    • G11B2220/215—Recordable discs
    • G11B2220/218—Write-once 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
    • 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
    • G11B27/28—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
    • G11B27/30—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on the same track as the main recording
    • G11B27/3027—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on the same track as the main recording used signal is digitally coded
    • 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

Landscapes

  • Optical Recording Or Reproduction (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
TW093110591A 2003-05-14 2004-04-16 Method and device for detecting land pre-pits TW200501080A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP03010790A EP1477985A1 (en) 2003-05-14 2003-05-14 Method and device for detecting land pre-pits

Publications (1)

Publication Number Publication Date
TW200501080A true TW200501080A (en) 2005-01-01

Family

ID=33016881

Family Applications (1)

Application Number Title Priority Date Filing Date
TW093110591A TW200501080A (en) 2003-05-14 2004-04-16 Method and device for detecting land pre-pits

Country Status (7)

Country Link
US (1) US7280450B2 (zh)
EP (2) EP1477985A1 (zh)
JP (1) JP4228985B2 (zh)
KR (1) KR20040098528A (zh)
CN (1) CN100524500C (zh)
MY (1) MY137096A (zh)
TW (1) TW200501080A (zh)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0413647D0 (en) * 2004-06-18 2004-07-21 Koninkl Philips Electronics Nv Land pre-pit signal processing method and related apparatus
US7643583B1 (en) 2004-08-06 2010-01-05 Marvell International Ltd. High-precision signal detection for high-speed receiver
EP1742221A1 (en) * 2005-06-28 2007-01-10 Deutsche Thomson-Brandt Gmbh Method and circuit for evaluating a wobble signal
JPWO2007007796A1 (ja) * 2005-07-14 2009-01-29 ローム株式会社 ランドプリピット信号検出回路およびそれを用いた光ディスク装置ならびに電子機器
KR100643698B1 (ko) 2005-08-22 2006-11-10 삼성전자주식회사 랜드 프리피트 검출장치
CN102216989A (zh) * 2008-11-14 2011-10-12 松下电器产业株式会社 检波器及检波方法
DE102017007081B4 (de) 2017-07-27 2019-06-06 Daimler Ag Elektrische Achsantriebsvorrichtung für ein Kraftfahrzeug, insbesondere für ein Nutzfahrzeug, sowie Kraftfahrzeug mit wenigstens einer solchen elektrischen Achsantriebsvorrichtung
US11567549B2 (en) * 2019-05-31 2023-01-31 Texas Instruments Incorporated Reset circuit for battery management system

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US28613A (en) 1860-06-05 Improvement in anti-friction screws and nuts
JP2000207744A (ja) * 1998-11-10 2000-07-28 Ricoh Co Ltd ピット信号検出回路
JP3776620B2 (ja) * 1999-03-24 2006-05-17 パイオニア株式会社 方向検出装置及び方向検出方法
JP2001297445A (ja) * 2000-04-10 2001-10-26 Toshiba Corp 光ディスクと光ディスク装置と光ディスクのトラックずれ判断方法
US6754157B2 (en) * 2000-08-07 2004-06-22 Victor Company Of Japan, Limited Recording and/or reproducing apparatus and recording and/or reproducing method capable of detecting a land pre-pit on disc securely at a high precision
JP3876601B2 (ja) * 2000-09-28 2007-02-07 松下電器産業株式会社 ランドプレピット検出装置およびこれを用いた光ディスク装置
JP4121264B2 (ja) * 2001-10-16 2008-07-23 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ ディスクドライブ装置及びウォブル情報検出方法
JP4121089B2 (ja) * 2005-02-22 2008-07-16 三菱電機株式会社 流量計の信号処理回路

Also Published As

Publication number Publication date
CN100524500C (zh) 2009-08-05
CN1551217A (zh) 2004-12-01
KR20040098528A (ko) 2004-11-20
EP1477985A1 (en) 2004-11-17
JP2004342301A (ja) 2004-12-02
US20050002305A1 (en) 2005-01-06
US7280450B2 (en) 2007-10-09
JP4228985B2 (ja) 2009-02-25
EP1477986A1 (en) 2004-11-17
MY137096A (en) 2008-12-31

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