JPH11501444A - 光学的に読み取り可能な記録媒体を走査する装置 - Google Patents

光学的に読み取り可能な記録媒体を走査する装置

Info

Publication number
JPH11501444A
JPH11501444A JP9524128A JP52412897A JPH11501444A JP H11501444 A JPH11501444 A JP H11501444A JP 9524128 A JP9524128 A JP 9524128A JP 52412897 A JP52412897 A JP 52412897A JP H11501444 A JPH11501444 A JP H11501444A
Authority
JP
Japan
Prior art keywords
focus error
signal
error signal
information
information layer
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.)
Ceased
Application number
JP9524128A
Other languages
English (en)
Japanese (ja)
Inventor
ヨセフス ヨハネス マリア ブラート
Original Assignee
フィリップス エレクトロニクス ネムローゼ フェンノートシャップ
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 フィリップス エレクトロニクス ネムローゼ フェンノートシャップ filed Critical フィリップス エレクトロニクス ネムローゼ フェンノートシャップ
Publication of JPH11501444A publication Critical patent/JPH11501444A/ja
Ceased 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
    • G11B7/0943—Methods and circuits for performing mathematical operations on individual detector segment outputs
    • 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
    • G11B7/094—Methods and circuits for servo offset compensation
    • 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
    • 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
    • G11B2007/0003—Recording, reproducing or erasing systems characterised by the structure or type of the carrier
    • G11B2007/0006—Recording, reproducing or erasing systems characterised by the structure or type of the carrier adapted for scanning different types of carrier, e.g. CD & DVD
    • 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
    • G11B2007/0003—Recording, reproducing or erasing systems characterised by the structure or type of the carrier
    • G11B2007/0009—Recording, reproducing or erasing systems characterised by the structure or type of the carrier for carriers having data stored in three dimensions, e.g. volume storage
    • G11B2007/0013—Recording, reproducing or erasing systems characterised by the structure or type of the carrier for carriers having data stored in three dimensions, e.g. volume storage for carriers having multiple discrete layers
    • 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
    • G11B7/0908—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 for focusing 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
    • G11B7/09—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
    • G11B7/0908—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 for focusing only
    • G11B7/0909—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 for focusing only by astigmatic methods
    • 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
    • G11B7/0908—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 for focusing only
    • G11B7/0912—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 for focusing only by push-pull method

Landscapes

  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Optical Head (AREA)
  • Display Devices Of Pinball Game Machines (AREA)
  • Auxiliary Devices For Music (AREA)
  • Holo Graphy (AREA)
  • Automatic Focus Adjustment (AREA)
JP9524128A 1995-12-27 1996-12-05 光学的に読み取り可能な記録媒体を走査する装置 Ceased JPH11501444A (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP95203643 1995-12-27
EP95203643.2 1995-12-27
PCT/IB1996/001359 WO1997024717A1 (en) 1995-12-27 1996-12-05 Device for scanning an optically readable record carrier

Publications (1)

Publication Number Publication Date
JPH11501444A true JPH11501444A (ja) 1999-02-02

Family

ID=8221017

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9524128A Ceased JPH11501444A (ja) 1995-12-27 1996-12-05 光学的に読み取り可能な記録媒体を走査する装置

Country Status (8)

Country Link
US (1) US5852592A (https=)
EP (1) EP0812457B1 (https=)
JP (1) JPH11501444A (https=)
AT (1) ATE219854T1 (https=)
DE (1) DE69622023T2 (https=)
MY (1) MY117472A (https=)
TW (1) TW318232B (https=)
WO (1) WO1997024717A1 (https=)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3845982B2 (ja) 1997-10-17 2006-11-15 ソニー株式会社 光ピックアップ装置
KR100375514B1 (ko) * 1997-10-20 2003-11-28 삼성전기주식회사 광픽업장치
WO1999024974A2 (en) * 1997-11-07 1999-05-20 Koninklijke Philips Electronics N.V. Optical scanning device
JP2000182254A (ja) * 1998-12-15 2000-06-30 Pioneer Electronic Corp ピックアップ装置
US6339565B1 (en) * 1999-03-31 2002-01-15 Lsi Logic Corporation Non-linear center-error generator for DVD servo control
TW491994B (en) * 2000-02-16 2002-06-21 Via Tech Inc Method and apparatus of finding the focus for a compact disc
KR100806214B1 (ko) * 2000-08-24 2008-02-22 톰슨 라이센싱 보정된 에러 신호 생성 방법 및 장치
TWI222628B (en) * 2003-07-09 2004-10-21 Mediatek Inc Method of vertical deviation disc detection
US7258414B2 (en) * 2004-09-17 2007-08-21 Ricoh Company, Ltd. Image-forming apparatus
CN101213597B (zh) 2005-06-30 2010-12-29 皇家飞利浦电子股份有限公司 用于逐步关闭光学驱动系统的聚焦控制回路的方法
KR20080010050A (ko) * 2006-07-25 2008-01-30 삼성전자주식회사 광 디스크 드라이브 및 그 제어 방법

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7313454A (nl) * 1973-10-01 1975-04-03 Philips Nv Opto-elektronisch stelsel voor het bepalen van een king tussen de werkelijke positie van een stralings kterend vlak in een optisch afbeeldingsstelsel en d ste positie van dit vlak.
NL177157C (nl) * 1975-02-28 1985-08-01 Philips Nv Inrichting voor het uitlezen van een vlakke registratiedrager met een optisch uitleesbare informatiestruktuur.
NL8502835A (nl) * 1985-10-17 1987-05-18 Philips Nv Inrichting voor het met optische straling aftasten van een informatievlak.
JP3028854B2 (ja) * 1990-07-18 2000-04-04 セイコーエプソン株式会社 光ヘッド及び光記憶再生装置
JPH06111344A (ja) * 1992-09-30 1994-04-22 Pioneer Electron Corp 光ピックアップ装置
JPH07311970A (ja) * 1994-05-17 1995-11-28 Seiko Epson Corp 光ヘッド及び光記憶装置
TW363182B (en) * 1995-02-09 1999-07-01 Hitachi Ltd Positioning apparatus for optical disks

Also Published As

Publication number Publication date
MY117472A (en) 2004-07-31
DE69622023T2 (de) 2003-03-06
WO1997024717A1 (en) 1997-07-10
TW318232B (https=) 1997-10-21
ATE219854T1 (de) 2002-07-15
DE69622023D1 (de) 2002-08-01
EP0812457B1 (en) 2002-06-26
EP0812457A1 (en) 1997-12-17
US5852592A (en) 1998-12-22

Similar Documents

Publication Publication Date Title
US4006293A (en) Apparatus for reading a flat record carrier with an optically readable information structure
JPH11501444A (ja) 光学的に読み取り可能な記録媒体を走査する装置
US5648946A (en) Optical pick-up apparatus with holographic optical element to diffract both forward and return light beams
US5841746A (en) Apparatus for scanning an optically readable record carrier
US5555232A (en) Optical head with built-in semiconductor laser, objective lens and 1/4 wavelength plate
US5844870A (en) Device for scanning an optically readable record carrier
JP2001195772A (ja) 光ピックアップ装置
JPS59231736A (ja) フォーカスおよびトラッキング誤差検出装置
KR20040097357A (ko) 광 픽업
US7499382B2 (en) Method for gain adjustment for production of a lens position signal, and a corresponding appliance for reading from and/or writing to an optical recording medium
CN101661763B (zh) 光拾取装置以及光盘装置
KR0181815B1 (ko) 듀얼 포커스 광 픽-업장치
US5483514A (en) Optical information recording and/or reproducing apparatus
KR100211819B1 (ko) 광 픽업 장치
JPH07105052B2 (ja) 光ピツクアツプのトラツキング方法
JPS61158045A (ja) 光ヘツド
KR100200807B1 (ko) 초해상의 고밀도 광기록방법 및 이를 이용한 광픽업
KR19980057997A (ko) 광 픽-업장치
JPS6113447A (ja) トラツキング誤差検出装置
KR19980058055A (ko) 광 픽업 장치
KR980011115A (ko) 광 픽-업장치
JPS58158046A (ja) 焦点制御装置
KR19980029873A (ko) 광 픽-업장치
JPS63263636A (ja) 光学的情報再生装置
JPH05197980A (ja) 光ヘッド装置

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20031204

A72 Notification of change in name of applicant

Free format text: JAPANESE INTERMEDIATE CODE: A721

Effective date: 20031204

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20050111

A601 Written request for extension of time

Free format text: JAPANESE INTERMEDIATE CODE: A601

Effective date: 20050408

A602 Written permission of extension of time

Free format text: JAPANESE INTERMEDIATE CODE: A602

Effective date: 20050530

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20050707

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20060418

A313 Final decision of rejection without a dissenting response from the applicant

Free format text: JAPANESE INTERMEDIATE CODE: A313

Effective date: 20060904

A02 Decision of refusal

Free format text: JAPANESE INTERMEDIATE CODE: A02

Effective date: 20061024