WO2008132784A1 - チルト制御方法、集積回路、および光ディスク装置 - Google Patents

チルト制御方法、集積回路、および光ディスク装置 Download PDF

Info

Publication number
WO2008132784A1
WO2008132784A1 PCT/JP2008/000916 JP2008000916W WO2008132784A1 WO 2008132784 A1 WO2008132784 A1 WO 2008132784A1 JP 2008000916 W JP2008000916 W JP 2008000916W WO 2008132784 A1 WO2008132784 A1 WO 2008132784A1
Authority
WO
WIPO (PCT)
Prior art keywords
tilt
output
disc device
optical disc
integrated circuit
Prior art date
Application number
PCT/JP2008/000916
Other languages
English (en)
French (fr)
Inventor
Masaya Kuwahara
Original Assignee
Panasonic Corporation
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 Panasonic Corporation filed Critical Panasonic Corporation
Priority to JP2009511655A priority Critical patent/JP4855517B2/ja
Priority to US12/594,984 priority patent/US20100118671A1/en
Publication of WO2008132784A1 publication Critical patent/WO2008132784A1/ja

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
    • 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
    • G11B7/09—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
    • G11B7/0941—Methods and circuits for servo gain or phase compensation during operation
    • 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
    • G11B7/0945—Methods for initialising servos, start-up sequences

Abstract

　出射光の光軸ずれ量を検出する光軸ずれ量検出手段（１３）と、光軸ずれ量検出手段（１３）の出力に基づいて、チルト補正量を決定し出力するチルト補正制御手段（１５）と、チルト補正制御手段（１５）の出力と、ディスク反りを補正するマイコン（１０Ｂ）と、マイコン（１０Ｂ）の出力と、チルト補正制御手段（１５）の出力とを、加算する加算手段（１６）とを備え、加算手段（１６）の出力により、チルト駆動手段（１１）を介してチルトアクチュエータ（２－９）を駆動して、光ビームをディスクに集光する対物レンズの傾きを制御する。
PCT/JP2008/000916 2007-04-13 2008-04-09 チルト制御方法、集積回路、および光ディスク装置 WO2008132784A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2009511655A JP4855517B2 (ja) 2007-04-13 2008-04-09 チルト制御方法、集積回路、および光ディスク装置
US12/594,984 US20100118671A1 (en) 2007-04-13 2008-04-09 Tilt control method, integrated circuit and optical disc device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-105543 2007-04-13
JP2007105543 2007-04-13

Publications (1)

Publication Number Publication Date
WO2008132784A1 true WO2008132784A1 (ja) 2008-11-06

Family

ID=39925257

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/000916 WO2008132784A1 (ja) 2007-04-13 2008-04-09 チルト制御方法、集積回路、および光ディスク装置

Country Status (3)

Country Link
US (1) US20100118671A1 (ja)
JP (1) JP4855517B2 (ja)
WO (1) WO2008132784A1 (ja)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110002117A1 (en) * 2009-06-16 2011-01-06 Panasonic Corporation Optical disc drive

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004355708A (ja) * 2003-05-28 2004-12-16 Toshiba Corp 光ディスク装置及びこの装置を用いたチルト制御方法
JP2006172525A (ja) * 2004-12-10 2006-06-29 Ricoh Co Ltd 光ディスク装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8105072A (nl) * 1981-11-10 1983-06-01 Philips Nv Electro-optische inrichting.
KR100739661B1 (ko) * 2000-04-28 2007-07-13 삼성전자주식회사 광기록재생기기용 에러신호 검출방법 및 장치
JP2002163834A (ja) * 2000-11-24 2002-06-07 Matsushita Electric Ind Co Ltd 光ディスク装置、レンズシフト量算出方法、媒体、および情報集合体

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004355708A (ja) * 2003-05-28 2004-12-16 Toshiba Corp 光ディスク装置及びこの装置を用いたチルト制御方法
JP2006172525A (ja) * 2004-12-10 2006-06-29 Ricoh Co Ltd 光ディスク装置

Also Published As

Publication number Publication date
US20100118671A1 (en) 2010-05-13
JPWO2008132784A1 (ja) 2010-07-22
JP4855517B2 (ja) 2012-01-18

Similar Documents

Publication Publication Date Title
EP1760522A3 (en) Autofocus apparatus
WO2009090511A3 (en) Method and apparatus for light intensity control
WO2006102026A3 (en) Focusing system using light source and image sensor
WO2006069040B1 (en) Method and apparatus for adjusting relative disposition of projection optics based on operating conditions
WO2010021342A3 (ja) カメラ
ATE514116T1 (de) Mikroskop und autofokussierverfahren für ein mikroskop
WO2010017415A3 (en) Camera-based heliostat calibration with artificial light sources
TW200617561A (en) Camera device
WO2008139723A1 (ja) 交換レンズおよびそれを用いたカメラシステム
WO2006050429A3 (en) Imaging stabilizer using micromirror array lens
CN104471459A (zh) 在透镜镜筒上装卸自如的驱动装置、进行其处理控制的方法及调整方法
WO2009029189A3 (en) Device for laser pulse conditioning by stretching, delaying and modulating
WO2009066370A1 (ja) レーザ発振器内出射ミラーの劣化状態測定方法およびレーザ加工装置
EP1981135A3 (en) Optical communication module and output control method of semiconductor laser
EP1770693A4 (en) OPTICAL INFORMATION DEVICE AND METHOD FOR CONTROLLING THE OPTICAL INFORMATION DEVICE
TW200641868A (en) Multi-radiation beam optical scanning device
TW200717172A (en) Photo module capable of adjusting distance between camera module and sensor unit
JP2013003333A (ja) 顕微鏡装置
WO2009047907A1 (ja) 光ピックアップ装置およびコリメートレンズ
JP2008009053A5 (ja)
ATE498853T1 (de) Linsenantriebssystem
WO2009127337A3 (de) Mikroskop mit haltefokuseinheit
WO2008132784A1 (ja) チルト制御方法、集積回路、および光ディスク装置
ATE501592T1 (de) Automatische scharfstellung für bildsensoren
WO2007044188A3 (en) Methods and apparatus providing improved visual capabilities of optical instruments

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 08738528

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 12594984

Country of ref document: US

ENP Entry into the national phase

Ref document number: 2009511655

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 08738528

Country of ref document: EP

Kind code of ref document: A1