AU2002224017A1 - Optica disk unit and control method therefor - Google Patents

Optica disk unit and control method therefor

Info

Publication number
AU2002224017A1
AU2002224017A1 AU2002224017A AU2401702A AU2002224017A1 AU 2002224017 A1 AU2002224017 A1 AU 2002224017A1 AU 2002224017 A AU2002224017 A AU 2002224017A AU 2401702 A AU2401702 A AU 2401702A AU 2002224017 A1 AU2002224017 A1 AU 2002224017A1
Authority
AU
Australia
Prior art keywords
tracking
drive
capability
sled
search direction
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.)
Abandoned
Application number
AU2002224017A
Inventor
Takashi Enokihara
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.)
Sony Interactive Entertainment Inc
Original Assignee
Sony Computer Entertainment Inc
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 Sony Computer Entertainment Inc filed Critical Sony Computer Entertainment Inc
Publication of AU2002224017A1 publication Critical patent/AU2002224017A1/en
Abandoned 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
    • 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
    • G11B7/08517—Methods for track change, selection or preliminary positioning by moving the head with tracking pull-in 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
    • G11B7/085—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
    • 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
    • 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
    • G11B7/0857—Arrangements for mechanically moving the whole head
    • G11B7/08582—Sled-type positioners
    • 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

Landscapes

  • Optical Recording Or Reproduction (AREA)
  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
  • Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
  • Liquid Crystal (AREA)
  • Pinball Game Machines (AREA)
  • Manufacturing Optical Record Carriers (AREA)
  • Vehicle Body Suspensions (AREA)
  • Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)

Abstract

Optical disk device, in which tracking adjustment systems and a sled adjustment system are controlled independently, has offset value acquisition capability, which detects drive signals output from tracking adjustment systems and acquires tracking drive offset values. Such disk also has an offset value comparison capability, which compares the acquired tracking offset value and the offset center value in the state in which no tracking adjustment control is done, a search direction acquisition capability, which acquires the search direction of optical pickup from the control instruction that is output from the control system and sled drive decision capability, which decides whether to drive sled adjustment system based on the comparison result and the acquired search direction.
AU2002224017A 2000-11-08 2001-11-07 Optica disk unit and control method therefor Abandoned AU2002224017A1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP2000340254 2000-11-08
JP2000-340254 2000-11-08
JP2001-334810 2001-10-31
JP2001334810A JP2002208149A (en) 2000-11-08 2001-10-31 Optical disk unit, its control method, and program that makes computer perform this control method
PCT/JP2001/009746 WO2002039437A1 (en) 2000-11-08 2001-11-07 Optica disk unit and control method therefor

Publications (1)

Publication Number Publication Date
AU2002224017A1 true AU2002224017A1 (en) 2002-05-21

Family

ID=26603581

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2002224017A Abandoned AU2002224017A1 (en) 2000-11-08 2001-11-07 Optica disk unit and control method therefor

Country Status (10)

Country Link
US (1) US6826134B2 (en)
EP (1) EP1335355B1 (en)
JP (1) JP2002208149A (en)
KR (1) KR20030078862A (en)
CN (1) CN1267909C (en)
AT (1) ATE457514T1 (en)
AU (1) AU2002224017A1 (en)
DE (1) DE60141282D1 (en)
TW (1) TW563119B (en)
WO (1) WO2002039437A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4551597B2 (en) * 2000-11-08 2010-09-29 株式会社ソニー・コンピュータエンタテインメント Optical disc apparatus, control method therefor, and program causing computer to execute the control method
JP4166715B2 (en) * 2004-02-25 2008-10-15 株式会社リコー Objective lens driving device, optical pickup device and optical disk device
CN100397502C (en) * 2004-11-29 2008-06-25 华硕电脑股份有限公司 Reading device of optic disk machine and its control method

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0738256B2 (en) 1987-07-31 1995-04-26 キヤノン株式会社 Auto tracking control device
US5343454A (en) * 1991-11-22 1994-08-30 Matsushita Electric Industrial Co., Ltd. Tracking control apparatus for correcting tracking error signal according to approximate equation of a function of track address
US5495455A (en) * 1992-04-28 1996-02-27 Sony Corporation Magneto-optical disk recording and reading apparatus and method wherein the recording head is controlled in the radial direction of the disk to a desired position
DE69421785T2 (en) * 1993-09-28 2000-05-11 Sony Corp Device for measuring the eccentricity of a disk, method therefor and recording and / or reproducing device for disk-shaped recording medium
JPH0963070A (en) * 1995-06-13 1997-03-07 Matsushita Electric Ind Co Ltd Track access method and device
US5920441A (en) * 1995-09-22 1999-07-06 International Business Machines Corporation Method and apparatus for controlling a multiple-stage actuator for a disk drive
KR0176888B1 (en) * 1996-01-24 1999-04-15 구자홍 Servo control device of optical disk recording and reproducing apparatus
JPH1014280A (en) * 1996-06-27 1998-01-16 Rohm Co Ltd Optical disc drive and motor control circuit therefor
JPH10112043A (en) * 1996-10-04 1998-04-28 Sony Corp Reproducer
JPH10124884A (en) * 1996-10-14 1998-05-15 Fujitsu Ltd Optical storage device
JPH10208254A (en) 1997-01-17 1998-08-07 Sony Corp Disk drive device and access method
JP3622818B2 (en) * 1997-03-28 2005-02-23 ソニー株式会社 Disk drive device
SG90024A1 (en) 1997-10-31 2002-07-23 Sony Prec Engineering Ct S Pte Apparatus and method for measuring characteristics of optical pickup and/or optical disc
JP3635518B2 (en) * 1997-11-27 2005-04-06 パイオニア株式会社 Tracking error signal correcting apparatus and information reproducing apparatus
JP2000231731A (en) * 1999-02-09 2000-08-22 Sony Corp Optical disk driving device, optical disk driving method and optical disk device
US6421198B1 (en) * 1999-04-27 2002-07-16 International Business Machines Corporation Linearity compensation for a position error signal based on repeatable and non-repeatable run out in a disk drive
US6633520B1 (en) * 1999-06-14 2003-10-14 Oak Technology, Inc. Method and apparatus for searching in a disk drive
KR20010087636A (en) * 2000-03-08 2001-09-21 구자홍 Method for detecting a one-sided lens
JP2001273646A (en) 2000-03-28 2001-10-05 Matsushita Electric Ind Co Ltd Optical disk device
US6603640B1 (en) * 2000-07-13 2003-08-05 International Business Machines Corporation Dual actuator pivot bearing system and method for making the same

Also Published As

Publication number Publication date
EP1335355B1 (en) 2010-02-10
ATE457514T1 (en) 2010-02-15
US20020105866A1 (en) 2002-08-08
JP2002208149A (en) 2002-07-26
KR20030078862A (en) 2003-10-08
EP1335355A4 (en) 2007-11-14
US6826134B2 (en) 2004-11-30
EP1335355A1 (en) 2003-08-13
CN1484828A (en) 2004-03-24
CN1267909C (en) 2006-08-02
TW563119B (en) 2003-11-21
WO2002039437A1 (en) 2002-05-16
DE60141282D1 (en) 2010-03-25

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