TW200639813A - Optical disk device - Google Patents

Optical disk device

Info

Publication number
TW200639813A
TW200639813A TW095107727A TW95107727A TW200639813A TW 200639813 A TW200639813 A TW 200639813A TW 095107727 A TW095107727 A TW 095107727A TW 95107727 A TW95107727 A TW 95107727A TW 200639813 A TW200639813 A TW 200639813A
Authority
TW
Taiwan
Prior art keywords
optical disk
disk device
control deviation
signal
case
Prior art date
Application number
TW095107727A
Other languages
Chinese (zh)
Other versions
TWI317935B (en
Inventor
Eiji Yokoyama
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of TW200639813A publication Critical patent/TW200639813A/en
Application granted granted Critical
Publication of TWI317935B publication Critical patent/TWI317935B/en

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
    • G11B7/0946—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
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B21/00—Head arrangements not specific to the method of recording or reproducing
    • G11B21/02—Driving or moving of heads
    • G11B21/10—Track finding or aligning by moving the head ; Provisions for maintaining alignment of the head relative to the track during transducing operation, i.e. 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
    • G11B7/085—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
    • G11B7/08541—Methods for track change, selection or preliminary positioning by moving the head involving track counting to determine position
    • 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

Landscapes

  • Optical Recording Or Reproduction (AREA)
  • Moving Of The Head To Find And Align With The Track (AREA)
  • Feedback Control In General (AREA)

Abstract

To provide an optical disk device comprising a means (101a) for estimating position control deviation and a means (102a) for outputting a correction signal to which a kick-braking function signal has been set to an actuator (10) based on the estimated result, so as to carry out controlling such that the position deviation signal will not exceed a specified value. In the case that the regenerated optical disk is subjected to an impact disturbance due to a vibration or collision acted upon the optical disk device, or a physical distortion of disks, such as an eccentric surface runout, the control deviation can be suppressed without losing the control stability, and stable recording/regeneration at all times is possible, even in the case that the control deviation increases.
TW095107727A 2005-03-09 2006-03-08 Optical disk device TWI317935B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005065102A JP3821828B1 (en) 2005-03-09 2005-03-09 Optical disk device

Publications (2)

Publication Number Publication Date
TW200639813A true TW200639813A (en) 2006-11-16
TWI317935B TWI317935B (en) 2009-12-01

Family

ID=36953301

Family Applications (1)

Application Number Title Priority Date Filing Date
TW095107727A TWI317935B (en) 2005-03-09 2006-03-08 Optical disk device

Country Status (5)

Country Link
JP (1) JP3821828B1 (en)
KR (1) KR100892823B1 (en)
CN (1) CN100541623C (en)
TW (1) TWI317935B (en)
WO (1) WO2006095707A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7245655B2 (en) * 2019-01-10 2023-03-24 日立Astemo株式会社 suspension controller

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03235226A (en) * 1990-02-13 1991-10-21 Marantz Japan Inc Oscillation brake circuit for optical pickup lens
JPH03235227A (en) * 1990-02-13 1991-10-21 Marantz Japan Inc Oscillation converging circuit for tracking of optical pickup
JPH11175984A (en) * 1997-12-11 1999-07-02 Hitachi Ltd Device for recording or reproducing information

Also Published As

Publication number Publication date
JP3821828B1 (en) 2006-09-13
CN101133446A (en) 2008-02-27
JP2006252627A (en) 2006-09-21
TWI317935B (en) 2009-12-01
KR100892823B1 (en) 2009-04-10
WO2006095707A1 (en) 2006-09-14
KR20070104459A (en) 2007-10-25
CN100541623C (en) 2009-09-16

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Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees