BRPI0519601A2 - arranjo dector para detectar um padrço de radiaÇço gerado por reflexço de um feixe principal e uma pluralidade de feixes laterais em um portador de registro de camada méltipla, e, dispositivos de captura para um portador de registro de camada méltipla e de acionamento para fornecer acesso a um portador de registro de camada méltipla - Google Patents

arranjo dector para detectar um padrço de radiaÇço gerado por reflexço de um feixe principal e uma pluralidade de feixes laterais em um portador de registro de camada méltipla, e, dispositivos de captura para um portador de registro de camada méltipla e de acionamento para fornecer acesso a um portador de registro de camada méltipla

Info

Publication number
BRPI0519601A2
BRPI0519601A2 BRPI0519601-9A BRPI0519601A BRPI0519601A2 BR PI0519601 A2 BRPI0519601 A2 BR PI0519601A2 BR PI0519601 A BRPI0519601 A BR PI0519601A BR PI0519601 A2 BRPI0519601 A2 BR PI0519601A2
Authority
BR
Brazil
Prior art keywords
layer record
record carrier
main beam
dector
triggering
Prior art date
Application number
BRPI0519601-9A
Other languages
English (en)
Inventor
Johannes H M Spruit
Hubert C F Martens
Sjoerd Stallinga
Pierre H Woerlee
Original Assignee
Koninkl Philips Electronics Nv
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 Koninkl Philips Electronics Nv filed Critical Koninkl Philips Electronics Nv
Publication of BRPI0519601A2 publication Critical patent/BRPI0519601A2/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
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/13—Optical detectors therefor
    • G11B7/131—Arrangement of detectors in a multiple array
    • 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
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/2403—Layers; Shape, structure or physical properties thereof
    • G11B7/24035—Recording layers
    • G11B7/24038—Multiple laminated recording 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
    • 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
    • G11B7/0948—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 detection and avoidance or compensation of imperfections on the carrier, e.g. dust, scratches, dropouts
    • 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
    • G11B7/13—Optical detectors therefor

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Optical Head (AREA)
  • Recording Measured Values (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
  • Measurement Of Radiation (AREA)

Abstract

ARRANJO DETECTOR PARA DETECTAR UM PADRçO DE RADIAÇçO GERADO POR REFLEXçO DE UM FEIXE PRINCIPAL E UMA PLURALIDADE DE FEIXES LATERAIS EM UM PORTADOR DE REGISTRO DE CAMADA MéLTIPLA, E, DISPOSITIVOS DE CAPTURA PARA UM PORTADOR DE REGISTRO DE CAMADA MéLTIPLA E DE ACIONAMENTO PARA FORNECER ACESSO A UM PORTADOR DE REGISTRO DE CAMADA MéLTIPLA. A presente invenção se refere a uma configuração de detector, dispositivo de captura e dispositivo de guia para portador de registros várias camadas, onde meios detectores de feixe principal e dois pares de meios detectores de feixes secundários dispostos em lados opostos dos meios de detecção de feixe principal são fornecidos para suprimir efeitos de interferência. Como um exemplo, os dois sistemas de três pontos de luz obtidos podem ser usados para sinais de erro de foco e sinais de erro de rastreamento, respectivamente, onde pontos de luz colaterais podem ser controlados para ter um padrão de franja desejado ou em fase ou fora de fase com aquele do feixe principal. Além da redução de erros de foco e de rastreamento, as medidas acima permitem reduzir espessura da camada de espaçamento.
BRPI0519601-9A 2004-12-20 2005-12-13 arranjo dector para detectar um padrço de radiaÇço gerado por reflexço de um feixe principal e uma pluralidade de feixes laterais em um portador de registro de camada méltipla, e, dispositivos de captura para um portador de registro de camada méltipla e de acionamento para fornecer acesso a um portador de registro de camada méltipla BRPI0519601A2 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP04106744 2004-12-20
PCT/IB2005/054209 WO2006067674A1 (en) 2004-12-20 2005-12-13 Multi-spot detector arrangement for multi-layer record carriers

Publications (1)

Publication Number Publication Date
BRPI0519601A2 true BRPI0519601A2 (pt) 2009-02-25

Family

ID=36406397

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0519601-9A BRPI0519601A2 (pt) 2004-12-20 2005-12-13 arranjo dector para detectar um padrço de radiaÇço gerado por reflexço de um feixe principal e uma pluralidade de feixes laterais em um portador de registro de camada méltipla, e, dispositivos de captura para um portador de registro de camada méltipla e de acionamento para fornecer acesso a um portador de registro de camada méltipla

Country Status (11)

Country Link
US (1) US20090296561A1 (pt)
EP (1) EP1831881B1 (pt)
JP (1) JP4754577B2 (pt)
KR (1) KR20070095343A (pt)
CN (1) CN100538834C (pt)
AT (1) ATE395694T1 (pt)
BR (1) BRPI0519601A2 (pt)
DE (1) DE602005006851D1 (pt)
MY (1) MY140684A (pt)
TW (1) TW200638386A (pt)
WO (1) WO2006067674A1 (pt)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5386198B2 (ja) 2009-03-09 2014-01-15 株式会社日立メディアエレクトロニクス 光ピックアップ装置

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JP2649231B2 (ja) * 1987-11-20 1997-09-03 株式会社 日本コンラックス 光学的情報再生装置
US5251198A (en) * 1992-05-29 1993-10-05 Strickler James H Reading device for multi-layered optical information carrier
DE69526435T2 (de) * 1994-12-28 2002-12-12 Sony Corp., Tokio/Tokyo Optische abtastvorrichtung
US5526338A (en) * 1995-03-10 1996-06-11 Yeda Research & Development Co. Ltd. Method and apparatus for storage and retrieval with multilayer optical disks
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DE69636555T2 (de) * 1995-07-10 2007-01-04 Matsushita Electric Industrial Co., Ltd., Kadoma Magnetisches Aufzeichnungsgerät und Verfahren zur Einstellung eines magnetischen Aufzeichnungsgerätes
JPH0991721A (ja) * 1995-09-29 1997-04-04 Nec Corp トラック誤差検出装置
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US5959953A (en) * 1996-07-03 1999-09-28 Zen Research Nv Methods and apparatus for performing cross-talk correction in a multi-track optical disk reader based on magnification error
JP3889104B2 (ja) * 1997-02-07 2007-03-07 シャープ株式会社 光ピックアップ装置
JP2985861B2 (ja) * 1998-01-16 1999-12-06 日本電気株式会社 光ヘッド
JP2001134945A (ja) * 1999-07-07 2001-05-18 Matsushita Electric Ind Co Ltd 光ディスク情報再生装置と方法
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US7016269B2 (en) * 2000-12-21 2006-03-21 Pioneer Corporation Optical pickup apparatus and focusing control method
JP2002216372A (ja) * 2001-01-23 2002-08-02 Pioneer Electronic Corp 光ピックアップ装置
KR100408401B1 (ko) * 2001-02-23 2003-12-06 삼성전자주식회사 광 기록/재생기기 및 트랙킹 에러신호 검출방법
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JP4514792B2 (ja) * 2005-07-19 2010-07-28 パイオニア株式会社 光ピックアップ装置及び情報記録再生装置

Also Published As

Publication number Publication date
DE602005006851D1 (de) 2008-06-26
JP2008524763A (ja) 2008-07-10
EP1831881B1 (en) 2008-05-14
EP1831881A1 (en) 2007-09-12
ATE395694T1 (de) 2008-05-15
WO2006067674A1 (en) 2006-06-29
CN100538834C (zh) 2009-09-09
JP4754577B2 (ja) 2011-08-24
MY140684A (en) 2010-01-15
TW200638386A (en) 2006-11-01
CN101084542A (zh) 2007-12-05
KR20070095343A (ko) 2007-09-28
US20090296561A1 (en) 2009-12-03

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Legal Events

Date Code Title Description
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: REFERENTE 7A. ANUIDADE.

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 2203 DE 26/03/2013.