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AU2002224016A1 - Optical disk unit and control method therefor - Google Patents

Optical disk unit and control method therefor

Info

Publication number
AU2002224016A1
AU2002224016A1 AU2002224016A AU2401602A AU2002224016A1 AU 2002224016 A1 AU2002224016 A1 AU 2002224016A1 AU 2002224016 A AU2002224016 A AU 2002224016A AU 2401602 A AU2401602 A AU 2401602A AU 2002224016 A1 AU2002224016 A1 AU 2002224016A1
Authority
AU
Australia
Prior art keywords
offset
tracking
optical disk
adjustment system
drive
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
AU2002224016A
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 AU2002224016A1 publication Critical patent/AU2002224016A1/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
    • 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
    • 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
    • G11B7/08505—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
    • G11B7/0956—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
    • G11B7/085—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
    • G11B7/085—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

Landscapes

  • Optical Recording Or Reproduction (AREA)
  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
  • Vehicle Body Suspensions (AREA)
  • Pinball Game Machines (AREA)
  • Manufacturing Optical Record Carriers (AREA)
  • Liquid Crystal (AREA)
  • Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)

Abstract

Optical disk device, in which a tracking adjustment system and sled adjustment system are controlled independently, has offset value acquisition capability, which detects the tracking drive signals output from tracking adjustment system for one lap around optical disk and acquires multiple tracking drive offset values. Such device also has offset representative value computation capability, which computes an offset representative value from multiple tracking drive offset values, as well as an offset value comparison capability, which compares the offset center value in the state in which no tracking adjustment control is done, and the offset representative value, as well as a sled drive decision means capability, which decides the drive of sled adjustment system 36 based on the comparison result.
AU2002224016A 2000-11-08 2001-11-07 Optical disk unit and control method therefor Abandoned AU2002224016A1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP2000340253 2000-11-08
JP2000-340253 2000-11-08
JP2001334809A JP4551597B2 (en) 2000-11-08 2001-10-31 Optical disc apparatus, control method therefor, and program causing computer to execute the control method
JP2001-334809 2001-10-31
PCT/JP2001/009745 WO2002039436A1 (en) 2000-11-08 2001-11-07 Optical disk unit and control method therefor

Publications (1)

Publication Number Publication Date
AU2002224016A1 true AU2002224016A1 (en) 2002-05-21

Family

ID=26603580

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2002224016A Abandoned AU2002224016A1 (en) 2000-11-08 2001-11-07 Optical disk unit and control method therefor

Country Status (10)

Country Link
US (1) US7016272B2 (en)
EP (1) EP1333433B1 (en)
JP (1) JP4551597B2 (en)
KR (1) KR100800701B1 (en)
CN (1) CN1251197C (en)
AT (1) ATE453185T1 (en)
AU (1) AU2002224016A1 (en)
DE (1) DE60140885D1 (en)
TW (1) TW577050B (en)
WO (1) WO2002039436A1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7257052B2 (en) * 2002-02-05 2007-08-14 Matsushita Electric Industrial Co., Ltd. Control apparatus and optical disk apparatus
JP3794345B2 (en) * 2002-04-25 2006-07-05 株式会社日立製作所 Information recording apparatus and information recording method
KR100529309B1 (en) * 2002-10-07 2005-11-17 삼성전자주식회사 Apparatus and method for adjusting offset
JP4005053B2 (en) * 2004-04-28 2007-11-07 Ｎｅｃエレクトロニクス株式会社 Optical disc apparatus and sled motor control method
US7613081B2 (en) * 2005-03-31 2009-11-03 Lsi Corporation Control of stepper motor in an optical disc
DE112007001408T5 (en) * 2006-08-09 2009-04-23 Mitsubishi Electric Corporation Playback device for an optical storage medium
JP2009069041A (en) * 2007-09-14 2009-04-02 Fujinon Corp Wavefront measuring device for optical pickup
US20120236702A1 (en) * 2010-06-21 2012-09-20 Yao-Lung Chuang Method of controlling mechanical mechanisms of electronic device for peak power/current reduction
US9412406B2 (en) 2013-03-07 2016-08-09 Mitsubishi Electric Corporation Tracking control device, tracking control method, and optical disc apparatus
WO2017004620A1 (en) * 2015-07-02 2017-01-05 Reliaquest Holdings, Llc Threat intelligence system and method

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63161538A (en) * 1986-12-24 1988-07-05 Nikon Corp Tracking controller for information recording and reproducing device
JPH0738256B2 (en) * 1987-07-31 1995-04-26 キヤノン株式会社 Auto tracking control device
US5138594A (en) * 1990-04-20 1992-08-11 International Business Machines Corporation Reducing amplitude variations of optical disk readback signals and increasing reliability of track-crossing counts
JPH0460974A (en) * 1990-06-26 1992-02-26 Pioneer Electron Corp Tracking servo device
EP0649132B1 (en) * 1993-09-28 1999-11-24 Sony Corporation Disc eccentricity measuring apparatus and method thereof and apparatus for recording and/or reproducing disc-shaped recording medium
JP3075116B2 (en) * 1994-12-27 2000-08-07 松下電器産業株式会社 Tracking control device for disk device
JP3129629B2 (en) * 1995-04-03 2001-01-31 シャープ株式会社 Optical disk drive
KR0176888B1 (en) * 1996-01-24 1999-04-15 구자홍 Servo control device of optical disk recording and reproducing apparatus
KR0176920B1 (en) * 1996-05-27 1999-04-15 구자홍 Sled control device and method for optical disc recording and reproducing apparatus
JPH10112043A (en) * 1996-10-04 1998-04-28 Sony Corp Playback device
JP3463975B2 (en) * 1997-10-22 2003-11-05 ティアック株式会社 Data reproduction method and apparatus
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
KR100312615B1 (en) * 1999-01-23 2001-11-03 구자홍 A method and apparatus for servo-controlling a pickup
US6633520B1 (en) * 1999-06-14 2003-10-14 Oak Technology, Inc. Method and apparatus for searching in a disk drive
KR100630006B1 (en) * 2000-01-26 2006-09-28 엘지전자 주식회사 Tracking control method of optical record player
JP2002208149A (en) * 2000-11-08 2002-07-26 Sony Computer Entertainment Inc Optical disk unit, its control method, and program that makes computer perform this control method

Also Published As

Publication number Publication date
US7016272B2 (en) 2006-03-21
DE60140885D1 (en) 2010-02-04
KR20030078859A (en) 2003-10-08
TW577050B (en) 2004-02-21
KR100800701B1 (en) 2008-02-01
US20030012095A1 (en) 2003-01-16
JP2002208154A (en) 2002-07-26
EP1333433A4 (en) 2007-09-12
WO2002039436A1 (en) 2002-05-16
ATE453185T1 (en) 2010-01-15
CN1473326A (en) 2004-02-04
EP1333433A1 (en) 2003-08-06
CN1251197C (en) 2006-04-12
JP4551597B2 (en) 2010-09-29
EP1333433B1 (en) 2009-12-23

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