KR20050056991A - 광 디스크 장치 - Google Patents

광 디스크 장치 Download PDF

Info

Publication number
KR20050056991A
KR20050056991A KR1020057002580A KR20057002580A KR20050056991A KR 20050056991 A KR20050056991 A KR 20050056991A KR 1020057002580 A KR1020057002580 A KR 1020057002580A KR 20057002580 A KR20057002580 A KR 20057002580A KR 20050056991 A KR20050056991 A KR 20050056991A
Authority
KR
South Korea
Prior art keywords
optical disk
linear velocity
unit
spot
speed
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.)
Withdrawn
Application number
KR1020057002580A
Other languages
English (en)
Korean (ko)
Inventor
도오루 마루야마
다카시 기시모토
겐지 후지우네
가츠야 와타나베
Original Assignee
마쯔시다덴기산교 가부시키가이샤
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 마쯔시다덴기산교 가부시키가이샤 filed Critical 마쯔시다덴기산교 가부시키가이샤
Publication of KR20050056991A publication Critical patent/KR20050056991A/ko
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/20—Driving; Starting; Stopping; Control thereof
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/20—Driving; Starting; Stopping; Control thereof
    • G11B19/24—Arrangements for providing constant relative speed between record carrier and head
    • G11B19/247—Arrangements for providing constant relative speed between record carrier and head using electrical means
    • 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
    • G11B7/08511—Methods for track change, selection or preliminary positioning by moving the head with focus 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
    • G11B7/08529—Methods and circuits to control the velocity of the head as it traverses the tracks

Landscapes

  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Moving Of Head For Track Selection And Changing (AREA)
  • Rotational Drive Of Disk (AREA)
KR1020057002580A 2002-08-30 2003-08-13 광 디스크 장치 Withdrawn KR20050056991A (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JPJP-P-2002-00254335 2002-08-30
JP2002254335 2002-08-30

Publications (1)

Publication Number Publication Date
KR20050056991A true KR20050056991A (ko) 2005-06-16

Family

ID=31972836

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020057002580A Withdrawn KR20050056991A (ko) 2002-08-30 2003-08-13 광 디스크 장치

Country Status (8)

Country Link
US (1) US20050219976A1 (https=)
EP (2) EP1532627B1 (https=)
JP (1) JP2005537606A (https=)
KR (1) KR20050056991A (https=)
CN (1) CN1324598C (https=)
AU (1) AU2003253445A1 (https=)
DE (2) DE60315200T2 (https=)
WO (1) WO2004021344A1 (https=)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7804753B2 (en) * 2005-01-24 2010-09-28 Panasonic Corporation Optical disk drive for discriminating types of optical disks
WO2007046222A1 (ja) * 2005-10-19 2007-04-26 Pioneer Corporation 光ディスク判別装置、再生装置、光ディスク判別方法、光ディスク判別プログラムおよび記録媒体
JP4993174B2 (ja) * 2006-08-01 2012-08-08 株式会社Ｊｖｃケンウッド 光ディスク装置、光ディスク種別判別方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5254920A (en) * 1991-06-14 1993-10-19 Western Digital (Singapore) Pte. Ltd. Seek system for sector servo disk drive
JPH1011890A (ja) * 1996-06-24 1998-01-16 Matsushita Electric Ind Co Ltd 光記録再生装置
JPH11176070A (ja) * 1997-12-15 1999-07-02 Sharp Corp 光ディスク装置
JP2000173167A (ja) * 1998-12-09 2000-06-23 Funai Electric Co Ltd 線速度判別方法および光ディスク装置
DE60042907D1 (de) * 1999-05-19 2009-10-15 Mitsubishi Kagaku Media Co Ltd Aufzeichnen bei konstanter Winkelgeschwindigkeit

Also Published As

Publication number Publication date
JP2005537606A (ja) 2005-12-08
US20050219976A1 (en) 2005-10-06
AU2003253445A1 (en) 2004-03-19
EP1628295B1 (en) 2007-07-25
EP1628295A2 (en) 2006-02-22
EP1628295A3 (en) 2006-03-01
DE60319838D1 (de) 2008-04-30
EP1532627A1 (en) 2005-05-25
EP1532627B1 (en) 2008-03-19
DE60315200T2 (de) 2008-04-17
WO2004021344A1 (en) 2004-03-11
DE60315200D1 (de) 2007-09-06
CN1659651A (zh) 2005-08-24
CN1324598C (zh) 2007-07-04
DE60319838T2 (de) 2009-04-23

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Legal Events

Date Code Title Description
PA0105 International application

Patent event date: 20050215

Patent event code: PA01051R01D

Comment text: International Patent Application

PG1501 Laying open of application
PC1203 Withdrawal of no request for examination
WITN Application deemed withdrawn, e.g. because no request for examination was filed or no examination fee was paid