DE602004007796D1 - Ausgedehnte fokussteuerung - Google Patents

Ausgedehnte fokussteuerung

Info

Publication number
DE602004007796D1
DE602004007796D1 DE602004007796T DE602004007796T DE602004007796D1 DE 602004007796 D1 DE602004007796 D1 DE 602004007796D1 DE 602004007796 T DE602004007796 T DE 602004007796T DE 602004007796 T DE602004007796 T DE 602004007796T DE 602004007796 D1 DE602004007796 D1 DE 602004007796D1
Authority
DE
Germany
Prior art keywords
signal
sensor signal
displacement
focus control
track
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
DE602004007796T
Other languages
English (en)
Other versions
DE602004007796T2 (de
Inventor
Hendrik J Goosens
Frank C Penning
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.)
Koninklijke Philips NV
Original Assignee
Koninklijke Philips Electronics NV
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 Koninklijke Philips Electronics NV filed Critical Koninklijke Philips Electronics NV
Publication of DE602004007796D1 publication Critical patent/DE602004007796D1/de
Application granted granted Critical
Publication of DE602004007796T2 publication Critical patent/DE602004007796T2/de
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
    • G11B7/08—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
    • G11B7/08—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
    • G11B7/0946—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 specially adapted for operation during external perturbations not related to the carrier or servo beam, e.g. vibration
    • 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
    • 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
    • G11B7/095—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 specially adapted for discs, e.g. for compensation of eccentricity or wobble
DE602004007796T 2003-05-16 2004-05-12 Ausgedehnte fokussteuerung Expired - Fee Related DE602004007796T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP03101386 2003-05-16
EP03101386 2003-05-16
PCT/IB2004/050641 WO2004102550A1 (en) 2003-05-16 2004-05-12 Extended focus control

Publications (2)

Publication Number Publication Date
DE602004007796D1 true DE602004007796D1 (de) 2007-09-06
DE602004007796T2 DE602004007796T2 (de) 2008-04-30

Family

ID=33442837

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602004007796T Expired - Fee Related DE602004007796T2 (de) 2003-05-16 2004-05-12 Ausgedehnte fokussteuerung

Country Status (8)

Country Link
US (1) US7548493B2 (de)
EP (1) EP1627381B1 (de)
JP (1) JP4361090B2 (de)
KR (1) KR20060006968A (de)
CN (1) CN100464370C (de)
AT (1) ATE368282T1 (de)
DE (1) DE602004007796T2 (de)
WO (1) WO2004102550A1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8744572B1 (en) 2013-01-31 2014-06-03 Medronic, Inc. Systems and methods for leadless pacing and shock therapy
AU2015213583B2 (en) * 2014-02-10 2017-11-09 Cardiac Pacemakers, Inc. Multi-chamber leadless pacemaker system with inter-device communication
US9808632B2 (en) * 2015-01-23 2017-11-07 Medtronic, Inc. Implantable medical device with dual-use communication module

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3970935A (en) * 1975-02-18 1976-07-20 Burroughs Corporation Wide-range digital reluctance tachometer
JPS60185230A (ja) * 1984-03-02 1985-09-20 Pioneer Electronic Corp 焦点誤差検出装置
NL8800151A (nl) 1988-01-22 1989-08-16 Philips Nv Werkwijze en inrichting voor het optekenen van een informatiesignaal.
US5187699A (en) 1988-01-22 1993-02-16 U.S. Philips Corporation Method and apparatus for successively recording two EFM-modulated signals enabling detection of boundary condition for transitioning between signals
DE4219311C2 (de) * 1991-06-13 1996-03-07 Sony Magnescale Inc Verschiebungsdetektor
JPH076372A (ja) 1993-06-21 1995-01-10 Matsushita Electric Ind Co Ltd 光ピックアップ装置およびそのフォーカス制御方法
US5642340A (en) 1993-06-23 1997-06-24 Sharp Kabushiki Kaisha Device for controlling focus of an optical disk apparatus
US5740138A (en) * 1994-09-06 1998-04-14 Kabushiki Kaisha Toshiba Apparatus for recording information on a primary optical disk to manufacture optical disks
FR2731808B1 (fr) * 1995-03-14 1997-04-11 Thomson Csf Systeme de reglage de focalisation optique
US5689485A (en) 1996-04-01 1997-11-18 Discovision Associates Tracking control apparatus and method
US6798725B1 (en) * 1998-10-27 2004-09-28 Matsushita Electric Industrial Co., Ltd. Wave-shaping apparatus and reproduction signal processing apparatus including the same
JP3720203B2 (ja) * 1998-11-17 2005-11-24 パイオニア株式会社 フォーカスジャンプ装置
EP1066628B1 (de) 1999-01-25 2003-11-12 Koninklijke Philips Electronics N.V. Datenträger und vorrichtung zum abtasten des datenträgers
FR2805381B1 (fr) * 2000-02-23 2003-09-05 St Microelectronics Sa Procede et dispositif de controle du positionnement d'un faisceau optique incident sur une piste d'un support mobile d'informations contenues dans ladite piste, en particulier un disque numerique multifonctions
US6724561B1 (en) * 2000-06-28 2004-04-20 Storage Technology Corporation Apparatus and method for compensating for environmental effects on media
US7016269B2 (en) * 2000-12-21 2006-03-21 Pioneer Corporation Optical pickup apparatus and focusing control method
JP4723114B2 (ja) * 2001-05-18 2011-07-13 日立コンピュータ機器株式会社 フォーカス制御装置およびフォーカス引き込み方法

Also Published As

Publication number Publication date
EP1627381A1 (de) 2006-02-22
CN100464370C (zh) 2009-02-25
US20070008839A1 (en) 2007-01-11
KR20060006968A (ko) 2006-01-20
ATE368282T1 (de) 2007-08-15
US7548493B2 (en) 2009-06-16
EP1627381B1 (de) 2007-07-25
JP4361090B2 (ja) 2009-11-11
WO2004102550A1 (en) 2004-11-25
JP2006529047A (ja) 2006-12-28
DE602004007796T2 (de) 2008-04-30
CN1791907A (zh) 2006-06-21

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee