AU2003253445A1 - Optical disc apparatus - Google Patents

Optical disc apparatus

Info

Publication number
AU2003253445A1
AU2003253445A1 AU2003253445A AU2003253445A AU2003253445A1 AU 2003253445 A1 AU2003253445 A1 AU 2003253445A1 AU 2003253445 A AU2003253445 A AU 2003253445A AU 2003253445 A AU2003253445 A AU 2003253445A AU 2003253445 A1 AU2003253445 A1 AU 2003253445A1
Authority
AU
Australia
Prior art keywords
optical disc
disc apparatus
optical
disc
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
AU2003253445A
Other languages
English (en)
Inventor
Kenji Fujiune
Takashi Kishimoto
Tooru Maruyama
Katsuya Watanabe
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of AU2003253445A1 publication Critical patent/AU2003253445A1/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
    • 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
AU2003253445A 2002-08-30 2003-08-13 Optical disc apparatus Abandoned AU2003253445A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2002-254335 2002-08-30
JP2002254335 2002-08-30
PCT/JP2003/010277 WO2004021344A1 (en) 2002-08-30 2003-08-13 Optical disc apparatus

Publications (1)

Publication Number Publication Date
AU2003253445A1 true AU2003253445A1 (en) 2004-03-19

Family

ID=31972836

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2003253445A Abandoned AU2003253445A1 (en) 2002-08-30 2003-08-13 Optical disc apparatus

Country Status (8)

Country Link
US (1) US20050219976A1 (enExample)
EP (2) EP1628295B1 (enExample)
JP (1) JP2005537606A (enExample)
KR (1) KR20050056991A (enExample)
CN (1) CN1324598C (enExample)
AU (1) AU2003253445A1 (enExample)
DE (2) DE60315200T2 (enExample)
WO (1) WO2004021344A1 (enExample)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE602006016555D1 (de) * 2005-01-24 2010-10-14 Panasonic Corp Optische plattenvorrichtung
US20090161509A1 (en) * 2005-10-19 2009-06-25 Pioneer Corporation Optical disc discriminating device, reproducing device, optical disc discriminating method, optical disc discriminating program and recording medium
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
EP1646043B1 (en) * 1999-05-19 2008-04-09 Mitsubishi Kagaku Media Co., Ltd. Rewritable optical recording medium and methods of recording EFM-modulated information on the recording medium

Also Published As

Publication number Publication date
CN1659651A (zh) 2005-08-24
KR20050056991A (ko) 2005-06-16
DE60319838D1 (de) 2008-04-30
EP1628295B1 (en) 2007-07-25
EP1532627A1 (en) 2005-05-25
DE60315200T2 (de) 2008-04-17
EP1628295A2 (en) 2006-02-22
EP1532627B1 (en) 2008-03-19
DE60315200D1 (de) 2007-09-06
CN1324598C (zh) 2007-07-04
WO2004021344A1 (en) 2004-03-11
EP1628295A3 (en) 2006-03-01
JP2005537606A (ja) 2005-12-08
DE60319838T2 (de) 2009-04-23
US20050219976A1 (en) 2005-10-06

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Legal Events

Date Code Title Description
MK6 Application lapsed section 142(2)(f)/reg. 8.3(3) - pct applic. not entering national phase