BR9506104A - Aparelho captor óptico capaz de ler dados independente do tipo de disco - Google Patents

Aparelho captor óptico capaz de ler dados independente do tipo de disco

Info

Publication number
BR9506104A
BR9506104A BR9506104A BR9506104A BR9506104A BR 9506104 A BR9506104 A BR 9506104A BR 9506104 A BR9506104 A BR 9506104A BR 9506104 A BR9506104 A BR 9506104A BR 9506104 A BR9506104 A BR 9506104A
Authority
BR
Brazil
Prior art keywords
disk
type
optical sensor
reading data
sensor capable
Prior art date
Application number
BR9506104A
Other languages
English (en)
Inventor
Jin-Yong Kim
Dae-Young Kim
Man-Hyung Lee
Song-Chan Park
In-Sang Song
Original Assignee
Lg Electronics Inc
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
Priority claimed from KR1019950004410A external-priority patent/KR0154200B1/ko
Priority claimed from KR1019950004525A external-priority patent/KR0180649B1/ko
Priority claimed from KR1019950006238A external-priority patent/KR0165599B1/ko
Priority claimed from KR1019950039516A external-priority patent/KR0176854B1/ko
Application filed by Lg Electronics Inc filed Critical Lg Electronics Inc
Publication of BR9506104A publication Critical patent/BR9506104A/pt

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
    • G11B7/002—Recording, reproducing or erasing systems characterised by the shape or form of the carrier
    • G11B7/0037—Recording, reproducing or erasing systems characterised by the shape or form of the carrier with discs
    • 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
    • G11B19/02—Control of operating function, e.g. switching from recording to reproducing
    • G11B19/12—Control of operating function, e.g. switching from recording to reproducing by sensing distinguishing features of or on records, e.g. diameter end mark
    • 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
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/123—Integrated head arrangements, e.g. with source and detectors mounted on the same substrate
    • 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
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1365—Separate or integrated refractive elements, e.g. wave plates
    • G11B7/1369—Active plates, e.g. liquid crystal panels or electrostrictive elements
    • 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
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/139—Numerical aperture control 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
    • 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
    • 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
    • G11B7/0925—Electromechanical actuators for lens positioning
    • G11B7/0933—Details of stationary parts
    • 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
    • G11B7/0925—Electromechanical actuators for lens positioning
    • G11B7/0935—Details of the moving parts
    • 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
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/22—Apparatus or processes for the manufacture of optical heads, e.g. assembly

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Optical Head (AREA)
  • Optical Recording Or Reproduction (AREA)
BR9506104A 1995-03-04 1995-12-27 Aparelho captor óptico capaz de ler dados independente do tipo de disco BR9506104A (pt)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR1019950004410A KR0154200B1 (ko) 1995-03-04 1995-03-04 Cd/dvd 계열 디스크 호환 기록/재생이 가능한 광픽업장치
KR1019950004525A KR0180649B1 (ko) 1995-03-06 1995-03-06 이중 포커싱이 가능한 광픽업장치
KR1019950006238A KR0165599B1 (ko) 1995-03-23 1995-03-23 광픽업 장치
KR1019950039516A KR0176854B1 (ko) 1995-03-04 1995-10-31 두께가 상이한 디스크의 호환 기록/재생장치 및 광픽업장치

Publications (1)

Publication Number Publication Date
BR9506104A true BR9506104A (pt) 1997-12-23

Family

ID=27483061

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9506104A BR9506104A (pt) 1995-03-04 1995-12-27 Aparelho captor óptico capaz de ler dados independente do tipo de disco

Country Status (8)

Country Link
US (3) US6026065A (pt)
EP (1) EP0731457B1 (pt)
JP (1) JPH08263867A (pt)
CN (1) CN1096063C (pt)
BR (1) BR9506104A (pt)
CA (1) CA2164384C (pt)
DE (1) DE69520731T2 (pt)
MX (1) MX9600031A (pt)

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EP0762398B1 (en) * 1995-08-31 2003-05-07 SANYO ELECTRIC Co., Ltd. Optical disk recording/reproducing apparatus recording/reproducing information to/from optical disks according to different standards
US6049518A (en) * 1995-08-31 2000-04-11 Sanyo Electric Co., Ltd. Optical disc recording/reproducing apparatus recording/reproducing information to/from optical discs according to different standards
JP2877044B2 (ja) * 1995-09-29 1999-03-31 日本電気株式会社 光ヘッド装置
JPH09106617A (ja) * 1995-10-06 1997-04-22 Pioneer Electron Corp 情報記録媒体判別方法及び装置並びにフォーカスサーボ制御方法及び装置
DE19544966A1 (de) * 1995-12-04 1997-06-05 Thomson Brandt Gmbh Gerät zum Beschreiben und/oder Lesen optischer Aufzeichnungsträger unterschiedlichen Aufbaus
US5757758A (en) * 1995-12-19 1998-05-26 Konica Corporation Optical pickup apparatus objective lens and converging optical system for optical pickup and optical disk apparatus
JP3062099B2 (ja) * 1996-02-06 2000-07-10 日本電気株式会社 光ヘッド装置
TW453493U (en) * 1996-02-13 2001-09-01 Tokyo Shibaura Electric Co Reproducing device of optical disk
DE19609575A1 (de) * 1996-03-12 1997-09-18 Thomson Brandt Gmbh Gerät zum Beschreiben und/oder Lesen optischer Aufzeichnungsträger unterschiedlichen Aufbaus
KR100189910B1 (ko) * 1996-05-15 1999-06-01 윤종용 광픽업장치
US7203138B2 (en) * 1996-06-18 2007-04-10 Matsushita Electric Industrial Co., Ltd. Optical head device, inclination detection apparatus using the same, and optical information processing apparatus using the same
US6222812B1 (en) * 1996-08-29 2001-04-24 Samsung Electronics Co., Ltd. Optical pickup using an optical phase plate
EP0833311B1 (en) 1996-09-25 2001-12-12 Victor Company Of Japan, Ltd. Disk type determining apparatus, optical disk reproducing apparatus and tracking error signal generating apparatus
US5963705A (en) * 1996-10-04 1999-10-05 Samsung Electronics Co., Ltd. Disk detecting device and method
KR100258927B1 (ko) * 1996-10-29 2000-06-15 윤종용 다중 트랙 스캔 가능한 호환형 광픽업장치
JP3787925B2 (ja) * 1996-11-14 2006-06-21 ソニー株式会社 対物レンズ装置及び記録再生装置
JPH10172171A (ja) * 1996-12-06 1998-06-26 Nec Corp 開口制限素子及びこれを利用した光へッド装置
JPH10188322A (ja) 1996-12-26 1998-07-21 Nec Corp 光ヘッド
JPH10334575A (ja) * 1997-06-04 1998-12-18 Nec Corp 光学的情報記録装置
WO1998058370A1 (en) * 1997-06-16 1998-12-23 Digital Papyrus Corporation Planar proximity lens element and disk drive using same
AU9002098A (en) 1997-09-10 1999-03-29 Citizen Watch Co. Ltd. Optical device
JPH11134675A (ja) * 1997-10-29 1999-05-21 Sanyo Electric Co Ltd 光ピックアップ装置および情報記録再生装置
KR19990049997A (ko) * 1997-12-16 1999-07-05 전주범 광조절 반사형 듀얼 포커스 광픽업장치
JP3573974B2 (ja) * 1998-09-18 2004-10-06 パイオニア株式会社 光ピックアップ
JP2001176114A (ja) * 1999-12-20 2001-06-29 Pioneer Electronic Corp ピックアップ装置及び情報記録再生装置
EP1115111B1 (en) * 2000-01-06 2004-11-10 Samsung Electronics Co., Ltd. Optical pickup
JP2002170266A (ja) * 2000-12-01 2002-06-14 Pioneer Electronic Corp チルトサーボ制御装置及び方法
JP2002237076A (ja) * 2001-02-06 2002-08-23 Pioneer Electronic Corp 収差補正装置
CN1232961C (zh) * 2001-06-18 2005-12-21 索尼公司 光学头的驱动方法、光学头及光盘装置
JP2003006902A (ja) * 2001-06-18 2003-01-10 Sony Corp 光ピックアップ
JP2003045042A (ja) * 2001-07-31 2003-02-14 Toshiba Corp 情報記録媒体の厚みムラ補正方法および厚みムラ補正方法を用いた情報記録再生装置
JP3857123B2 (ja) * 2001-12-14 2006-12-13 シャープ株式会社 受光アンプ回路及びそれを用いた光ディスク記録再生装置
EP1469463B1 (en) * 2002-01-23 2009-06-17 Panasonic Corporation Optical disk unit
EP1341166B1 (en) 2002-02-27 2008-06-04 Ricoh Company, Ltd. Optical pickup for different wavelengths
EP1463053A3 (en) * 2003-03-25 2006-12-06 Matsushita Electric Industrial Co., Ltd. Method and apparatus for recognizing optical discs, optical disc drive, and method and apparatus for distinguishing data storage layers
KR100577708B1 (ko) * 2004-06-15 2006-05-10 삼성전자주식회사 단일파장을 이용한 광디스크 재생방법
JP2007026486A (ja) * 2005-07-12 2007-02-01 Toshiba Corp 受光素子回路及び光ディスク装置
JP2007157247A (ja) * 2005-12-06 2007-06-21 Toshiba Corp 対物レンズアクチュエータ及び情報記録再生装置
US8107762B2 (en) * 2006-03-17 2012-01-31 Qualcomm Incorporated Systems, methods, and apparatus for exposure control
JP2008052837A (ja) * 2006-08-25 2008-03-06 Funai Electric Co Ltd 球面収差補正素子及びそれを用いた光ピックアップ装置
KR20080020901A (ko) * 2006-09-01 2008-03-06 삼성전자주식회사 광픽업 장치
US20080065904A1 (en) * 2006-09-12 2008-03-13 Global Discware Reproduction of compact discs and DVDs
JP2011119000A (ja) * 2009-12-07 2011-06-16 Hitachi-Lg Data Storage Inc 光ディスク装置およびデフォーカス補正方法
JP2011150766A (ja) * 2010-01-25 2011-08-04 Hitachi Media Electoronics Co Ltd 光ピックアップ
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Also Published As

Publication number Publication date
MX9600031A (es) 1997-03-29
CA2164384C (en) 1999-08-17
US6026065A (en) 2000-02-15
US6034935A (en) 2000-03-07
DE69520731D1 (de) 2001-05-23
CN1096063C (zh) 2002-12-11
EP0731457A3 (en) 1996-12-27
US6088317A (en) 2000-07-11
CN1133473A (zh) 1996-10-16
DE69520731T2 (de) 2002-03-07
EP0731457A2 (en) 1996-09-11
JPH08263867A (ja) 1996-10-11
EP0731457B1 (en) 2001-04-18
CA2164384A1 (en) 1996-09-05

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Legal Events

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FA10 Dismissal: dismissal - article 33 of industrial property law