DE69710119D1 - Ausgleich für radiale und vertikale Rundlauffehler einer optischen Platte - Google Patents

Ausgleich für radiale und vertikale Rundlauffehler einer optischen Platte

Info

Publication number
DE69710119D1
DE69710119D1 DE69710119T DE69710119T DE69710119D1 DE 69710119 D1 DE69710119 D1 DE 69710119D1 DE 69710119 T DE69710119 T DE 69710119T DE 69710119 T DE69710119 T DE 69710119T DE 69710119 D1 DE69710119 D1 DE 69710119D1
Authority
DE
Germany
Prior art keywords
compensation
radial
optical disk
vertical runout
runout errors
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
DE69710119T
Other languages
English (en)
Other versions
DE69710119T2 (de
Inventor
Roger A Hajjar
Stuart D Perry
Mark A Barton
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.)
Eastman Kodak Co
Original Assignee
Eastman Kodak Co
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 Eastman Kodak Co filed Critical Eastman Kodak Co
Publication of DE69710119D1 publication Critical patent/DE69710119D1/de
Application granted granted Critical
Publication of DE69710119T2 publication Critical patent/DE69710119T2/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
    • G11B7/08—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
    • G11B7/0956—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 to compensate for tilt, skew, warp or inclination of the disc, i.e. maintain the optical axis at right angles to the disc
    • 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
    • G11B7/0953—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 to compensate for eccentricity of the disc or disc tracks
DE69710119T 1996-05-03 1997-04-21 Ausgleich für radiale und vertikale Rundlauffehler einer optischen Platte Expired - Lifetime DE69710119T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/642,385 US5742573A (en) 1996-05-03 1996-05-03 Compensation apparatus for radial and vertical runout of an optical disc

Publications (2)

Publication Number Publication Date
DE69710119D1 true DE69710119D1 (de) 2002-03-14
DE69710119T2 DE69710119T2 (de) 2002-09-19

Family

ID=24576328

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69710119T Expired - Lifetime DE69710119T2 (de) 1996-05-03 1997-04-21 Ausgleich für radiale und vertikale Rundlauffehler einer optischen Platte

Country Status (4)

Country Link
US (1) US5742573A (de)
EP (1) EP0805439B1 (de)
JP (1) JPH1031831A (de)
DE (1) DE69710119T2 (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10208418A (ja) * 1997-01-17 1998-08-07 Alps Electric Co Ltd トラック追従制御装置
SG79960A1 (en) * 1998-02-02 2001-04-17 Texas Instr Singapore Pte Ltd Using radial runout to calibrate radial actuator frequency response in a cd/dvd pickup
SG79958A1 (en) * 1998-02-02 2001-04-17 Texas Instr Singapore Pte Ltd Cd/dvd radial runout calibration
US6590843B1 (en) * 1998-06-02 2003-07-08 Texas Instruments Incorporated DVD radial runout cancellation with self-calibration
US6728178B2 (en) * 2000-10-27 2004-04-27 Matsushita Electric Industrial Co., Ltd. Semiconductor laser control method and semiconductor laser control device
JP3517223B2 (ja) 2001-04-24 2004-04-12 株式会社東芝 光ディスク装置及び光ディスク処理方法
JP2003030867A (ja) * 2001-07-13 2003-01-31 Hitachi Ltd フォーカス制御方法及び装置とそれを用いた原盤露光装置
US20050058031A1 (en) * 2003-09-12 2005-03-17 Hanks Darwin Mitchel Optical disk drive focusing apparatus
US7177246B2 (en) * 2003-09-12 2007-02-13 Hewlett-Packard Development Company, L.P. Optical disk drive focusing apparatus using sum signal
US20080049571A1 (en) * 2006-08-25 2008-02-28 Mediatek, Inc. Method and apparatus for compensating periodic signal

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3881184A (en) * 1974-05-28 1975-04-29 Ibm Adaptive digital servo system
US4439848A (en) * 1978-03-27 1984-03-27 Discovision Associates Focusing system for video disc player
US4628379A (en) * 1984-09-25 1986-12-09 Amcodyne Incorporated Disk runout compensator
US4616276A (en) * 1985-07-16 1986-10-07 International Business Machines Corporation Disk file servo control system with fast reduction of repeatable head position error
US4866688A (en) * 1985-12-20 1989-09-12 Hitachi, Ltd. Composite tracking servo system for optical disc apparatus with track offset correction
JPS6371608A (ja) * 1986-09-12 1988-04-01 Seiko Epson Corp 偏心測定装置
US4764914A (en) * 1987-09-11 1988-08-16 Eastman Kodak Company Least squares method and apparatus for determining track eccentricity of a disk
JPH0721868B2 (ja) * 1989-08-04 1995-03-08 キヤノン株式会社 光情報処理装置
US5121374A (en) * 1989-10-25 1992-06-09 Eastman Kodak Company Method for automatically compensating for the eccentricity in an optical head positioning servo-mechanism
WO1993006595A1 (en) * 1991-09-25 1993-04-01 Integral Peripherals, Inc. Adaptive runout compensation for miniature disk drives
JP3404072B2 (ja) * 1993-06-07 2003-05-06 株式会社リコー 光ディスクドライブ装置のトラッキングサーボ装置

Also Published As

Publication number Publication date
JPH1031831A (ja) 1998-02-03
EP0805439B1 (de) 2002-01-30
EP0805439A1 (de) 1997-11-05
DE69710119T2 (de) 2002-09-19
US5742573A (en) 1998-04-21

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