CN1324598C - 光盘装置 - Google Patents

光盘装置 Download PDF

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Publication number
CN1324598C
CN1324598C CNB038127326A CN03812732A CN1324598C CN 1324598 C CN1324598 C CN 1324598C CN B038127326 A CNB038127326 A CN B038127326A CN 03812732 A CN03812732 A CN 03812732A CN 1324598 C CN1324598 C CN 1324598C
Authority
CN
China
Prior art keywords
optical disc
linear velocity
moving
speed
light spot
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.)
Expired - Fee Related
Application number
CNB038127326A
Other languages
English (en)
Chinese (zh)
Other versions
CN1659651A (zh
Inventor
丸山徹
岸本隆
藤畝健司
渡边克也
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 CN1659651A publication Critical patent/CN1659651A/zh
Application granted granted Critical
Publication of CN1324598C publication Critical patent/CN1324598C/zh
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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)
  • Rotational Drive Of Disk (AREA)
  • Moving Of Head For Track Selection And Changing (AREA)
CNB038127326A 2002-08-30 2003-08-13 光盘装置 Expired - Fee Related CN1324598C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2002254335 2002-08-30
JP254335/2002 2002-08-30

Publications (2)

Publication Number Publication Date
CN1659651A CN1659651A (zh) 2005-08-24
CN1324598C true CN1324598C (zh) 2007-07-04

Family

ID=31972836

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB038127326A Expired - Fee Related CN1324598C (zh) 2002-08-30 2003-08-13 光盘装置

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

Citations (3)

* 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
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
US6172946B1 (en) * 1996-06-24 2001-01-09 Matsushita Electric Industrial Co., Ltd. Optical recording device for adjusting the rotation rate of recording medium during seeking operation

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11176070A (ja) * 1997-12-15 1999-07-02 Sharp Corp 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

Patent Citations (3)

* 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
US6172946B1 (en) * 1996-06-24 2001-01-09 Matsushita Electric Industrial Co., Ltd. Optical recording device for adjusting the rotation rate of recording medium during seeking operation
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

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
WO2004021344A1 (en) 2004-03-11
EP1628295A3 (en) 2006-03-01
JP2005537606A (ja) 2005-12-08
DE60319838T2 (de) 2009-04-23
AU2003253445A1 (en) 2004-03-19
US20050219976A1 (en) 2005-10-06

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C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20070704

Termination date: 20100813