DE69702799T2 - Vorrichtung und Verfahren zur Spurverfolgung - Google Patents

Vorrichtung und Verfahren zur Spurverfolgung

Info

Publication number
DE69702799T2
DE69702799T2 DE69702799T DE69702799T DE69702799T2 DE 69702799 T2 DE69702799 T2 DE 69702799T2 DE 69702799 T DE69702799 T DE 69702799T DE 69702799 T DE69702799 T DE 69702799T DE 69702799 T2 DE69702799 T2 DE 69702799T2
Authority
DE
Germany
Prior art keywords
output
detector
error signal
periodic function
outputs
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
DE69702799T
Other languages
English (en)
Other versions
DE69702799D1 (de
Inventor
Ludwig Ceshkovsky
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.)
Discovision Associates
Original Assignee
Discovision Associates
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 Discovision Associates filed Critical Discovision Associates
Publication of DE69702799D1 publication Critical patent/DE69702799D1/de
Application granted granted Critical
Publication of DE69702799T2 publication Critical patent/DE69702799T2/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
    • G11B7/12—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
    • G11B7/08—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
    • G11B7/0901—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 track following 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
    • G11B7/0901—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 track following only
    • G11B7/0903—Multi-beam tracking systems
    • 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
    • G11B7/0946—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
    • G11B7/0948—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 detection and avoidance or compensation of imperfections on the carrier, e.g. dust, scratches, dropouts
    • 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
    • G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
    • G11B7/08505—Methods for track change, selection or preliminary positioning by moving the head
DE69702799T 1996-04-01 1997-03-19 Vorrichtung und Verfahren zur Spurverfolgung Expired - Lifetime DE69702799T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/625,273 US5689485A (en) 1996-04-01 1996-04-01 Tracking control apparatus and method

Publications (2)

Publication Number Publication Date
DE69702799D1 DE69702799D1 (de) 2000-09-21
DE69702799T2 true DE69702799T2 (de) 2001-02-01

Family

ID=24505325

Family Applications (3)

Application Number Title Priority Date Filing Date
DE69702799T Expired - Lifetime DE69702799T2 (de) 1996-04-01 1997-03-19 Vorrichtung und Verfahren zur Spurverfolgung
DE69713316T Expired - Lifetime DE69713316T4 (de) 1996-04-01 1997-03-24 Servobetrieb für spurverfolgung mit geschlossener regelschleife
DE69713316A Expired - Lifetime DE69713316D1 (de) 1996-04-01 1997-03-24 Servobetrieb für spurverfolgung mit geschlossener regelschleife

Family Applications After (2)

Application Number Title Priority Date Filing Date
DE69713316T Expired - Lifetime DE69713316T4 (de) 1996-04-01 1997-03-24 Servobetrieb für spurverfolgung mit geschlossener regelschleife
DE69713316A Expired - Lifetime DE69713316D1 (de) 1996-04-01 1997-03-24 Servobetrieb für spurverfolgung mit geschlossener regelschleife

Country Status (20)

Country Link
US (3) US5689485A (de)
EP (2) EP0800166B1 (de)
JP (2) JP3239293B2 (de)
KR (1) KR100306541B1 (de)
CN (2) CN1099669C (de)
AT (2) ATE195606T1 (de)
AU (2) AU688234B2 (de)
BR (2) BR9708479B1 (de)
CA (2) CA2200286C (de)
DE (3) DE69702799T2 (de)
DK (1) DK0800166T3 (de)
ES (1) ES2118687T3 (de)
HK (1) HK1003679A1 (de)
ID (1) ID16516A (de)
IL (1) IL126392A (de)
MY (1) MY119172A (de)
NO (1) NO316555B1 (de)
PT (1) PT800166E (de)
SG (1) SG47213A1 (de)
WO (1) WO1997037347A1 (de)

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JP4256353B2 (ja) * 2005-02-17 2009-04-22 ファナック株式会社 サーボ制御装置及びサーボ系の調整方法
EP1804100B1 (de) * 2005-12-30 2018-02-21 Datalogic IP TECH S.r.l. Verfahren und Vorrichtung zur Fokussierung eines Laserstrahls
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CN115047215B (zh) * 2022-02-18 2023-03-21 太原理工大学 三轴振动加速度信号耦合修正检测系统及方法

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EP0892975B1 (de) 2002-06-12
DE69713316D1 (de) 2002-07-18
NO971114D0 (no) 1997-03-11
US6314069B1 (en) 2001-11-06
EP0800166A2 (de) 1997-10-08
HK1003679A1 (en) 1998-11-06
EP0800166A3 (de) 1997-11-26
CA2200286C (en) 2000-05-16
CA2244961A1 (en) 1997-10-09
BR9708479B1 (pt) 2009-05-05
ATE195606T1 (de) 2000-09-15
EP0892975A1 (de) 1999-01-27
CN1173015A (zh) 1998-02-11
AU1648397A (en) 1997-12-18
DE69713316T4 (de) 2003-08-07
AU688234B2 (en) 1998-03-05
WO1997037347A1 (en) 1997-10-09
EP0800166B1 (de) 2000-08-16
BR9708479A (pt) 1999-04-13
CN1099669C (zh) 2003-01-22
CA2200286A1 (en) 1997-10-01
PT800166E (pt) 2000-12-29
IL126392A (en) 2004-08-31
KR970071547A (ko) 1997-11-07
MX9702229A (es) 1997-10-31
AU2543597A (en) 1997-10-22
SG47213A1 (en) 1998-03-20
JP4028599B2 (ja) 2007-12-26
DE69713316T2 (de) 2002-10-24
CN1213453A (zh) 1999-04-07
ID16516A (id) 1997-10-09
ES2118687T1 (es) 1998-10-01
NO971114L (no) 1997-10-02
KR100306541B1 (ko) 2001-11-30
JP2000509540A (ja) 2000-07-25
AU722720B2 (en) 2000-08-10
US6134199A (en) 2000-10-17
NO316555B1 (no) 2004-02-02
ATE219278T1 (de) 2002-06-15
DE69702799D1 (de) 2000-09-21
MY119172A (en) 2005-04-30
CN1092380C (zh) 2002-10-09
ES2118687T3 (es) 2000-10-16
JPH1049890A (ja) 1998-02-20
IL126392A0 (en) 1999-05-09
JP3239293B2 (ja) 2001-12-17
CA2244961C (en) 2003-01-07
DK0800166T3 (da) 2000-10-02
US5689485A (en) 1997-11-18
BR9701608A (pt) 1998-09-08

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