ES2015256B3 - Aparato detector con estructura optica para leer y/o grabar informacion. - Google Patents

Aparato detector con estructura optica para leer y/o grabar informacion.

Info

Publication number
ES2015256B3
ES2015256B3 ES86201763T ES86201763T ES2015256B3 ES 2015256 B3 ES2015256 B3 ES 2015256B3 ES 86201763 T ES86201763 T ES 86201763T ES 86201763 T ES86201763 T ES 86201763T ES 2015256 B3 ES2015256 B3 ES 2015256B3
Authority
ES
Spain
Prior art keywords
read
record information
optical structure
detector device
detector
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 - Lifetime
Application number
ES86201763T
Other languages
English (en)
Inventor
Andreas Johannes Maria Bressers
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken 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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of ES2015256B3 publication Critical patent/ES2015256B3/es
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/13—Optical detectors therefor
    • G11B7/133—Shape of individual detector 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
    • G11B7/08—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

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Recording Or Reproduction (AREA)
ES86201763T 1985-10-14 1986-10-13 Aparato detector con estructura optica para leer y/o grabar informacion. Expired - Lifetime ES2015256B3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL8502802A NL8502802A (nl) 1985-10-14 1985-10-14 Inrichting voor het uitlezen en/of inschrijven van een optische spoorvormige informatiestruktuur.

Publications (1)

Publication Number Publication Date
ES2015256B3 true ES2015256B3 (es) 1990-08-16

Family

ID=19846713

Family Applications (1)

Application Number Title Priority Date Filing Date
ES86201763T Expired - Lifetime ES2015256B3 (es) 1985-10-14 1986-10-13 Aparato detector con estructura optica para leer y/o grabar informacion.

Country Status (9)

Country Link
US (1) US4730295A (es)
EP (1) EP0219170B1 (es)
JP (1) JPS6292141A (es)
KR (1) KR870004425A (es)
AU (1) AU6382286A (es)
CA (1) CA1263477A (es)
DE (1) DE3670714D1 (es)
ES (1) ES2015256B3 (es)
NL (1) NL8502802A (es)

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JP2655923B2 (ja) * 1990-01-22 1997-09-24 シャープ株式会社 光ヘッド装置
JP2795528B2 (ja) * 1990-07-25 1998-09-10 パイオニア株式会社 信号検出装置
US5245174A (en) * 1990-10-15 1993-09-14 Applied Magnetics Corporation Focus sensing apparatus utilizing a reflecting surface having variable reflectivity
GB2248989B (en) * 1990-10-15 1995-05-24 Applied Magnetics Corp Focus sensing apparatus and method
US6580683B1 (en) 1999-06-23 2003-06-17 Dataplay, Inc. Optical recording medium having a master data area and a writeable data area
US6775077B1 (en) * 2000-09-22 2004-08-10 Symbol Technologies, Inc. Micro reader scan engine with prism
US6704261B2 (en) 2001-01-25 2004-03-09 Dphi Acquisitions, Inc. Spin motor control in an optical drive
US6738320B2 (en) 2001-01-25 2004-05-18 Dphi Acquisitions, Inc. System and method for moving optical pick up from current position to target position with smooth control
US7593300B2 (en) 2001-01-25 2009-09-22 Dphi Acquisitions, Inc. Digital tracking servo system with off-format detection
US6909676B2 (en) * 2001-01-25 2005-06-21 Dphi Acquisitions, Inc. Digital tracking servo system with multi-track seek with track zero crossing detection
US6891789B2 (en) * 2001-01-25 2005-05-10 Dphi Acquisitions, Inc. Tracking and focus servo system with automatic media type detector
US7023766B2 (en) 2001-01-25 2006-04-04 Dphi Acquisitions, Inc. Flexible servicing of servo algorithms using a digital signal processor
US6904007B2 (en) * 2001-01-25 2005-06-07 Dphi Acquisitions, Inc. Digital servo system with loop gain calibration
US6965547B2 (en) * 2001-01-25 2005-11-15 Dphi Acquisitions, Inc. Tracking and focus servo system with error signal inverse non-linearity calibration
US6847596B2 (en) 2001-01-25 2005-01-25 Dphi Acquisitions, Inc. Tracking servo system including a multi-track seek algorithm with a track zero crossing period integrity test
US7782721B2 (en) * 2001-01-25 2010-08-24 Dphi Acquisitions, Inc. Digital focus and tracking servo system with multi-zone calibration
US6728182B2 (en) 2001-01-25 2004-04-27 Dphi Acquisitions, Inc. Tracking and focus servo system with a media type boundary crossing detector
US6781929B2 (en) 2001-01-25 2004-08-24 Dphi Acquisitions, Inc. Digital tracking servo system with multi-track seek
US6813228B2 (en) 2001-01-25 2004-11-02 Dphi Acquisitions, Inc. Tracking and focus servo system with direction sensor
US7414940B2 (en) 2001-01-25 2008-08-19 Dphi Acquisitions, Inc. Calibration of a focus error signal gain in a focus servo system
US7020054B2 (en) * 2001-01-25 2006-03-28 Dphi Acquisitions, Inc. Digital servo system with biased feed-forward
US6762980B2 (en) 2001-01-25 2004-07-13 Dphi Acquisitions, Inc. Digital tracking servo system with a multi-track seeking and accelerated servo function for regaining a closed tracking loop
US7522480B2 (en) 2001-01-25 2009-04-21 Dphi Acquisitions, Inc. Digital tracking servo system with multi-track seek with an acceleration clamp
US6956797B2 (en) * 2001-01-25 2005-10-18 Dphi Acquisitions, Inc. Digital servo system with error signal integrity testing
US6813226B2 (en) 2001-01-25 2004-11-02 Dphi Acquisitions, Inc. Calibration of a focus sum threshold in a focus servo system
US6847597B2 (en) 2001-01-25 2005-01-25 Dphi Acquisitions, Inc. Optical disk drive with a digital focus and tracking servo system
US6906985B2 (en) 2001-01-25 2005-06-14 Dphi Acquisitions, Inc. Calibration of tracking error signal gain in a tracking servo system
US6950380B2 (en) * 2001-01-25 2005-09-27 Dphi Acquisitions, Inc. Detector input dark current offset calibration in an optical disk drive digital servo
US7196979B2 (en) 2001-01-25 2007-03-27 Dphi Acquisitions, Inc. Calibration storage methods for a digital focus and tracking servo system with calibration
US7492675B2 (en) * 2001-01-25 2009-02-17 Dphi Acquisitions, Inc. Digital servo system with calibrated notch filters
US7672199B2 (en) 2001-01-25 2010-03-02 Dphi Acquisitions, Inc. Close focus algorithm in a digital focus servo system
US6937543B2 (en) 2001-01-25 2005-08-30 Dphi Acquisitions, Inc. Digital focus servo system with a sliding notch filter
US6882601B2 (en) 2001-01-25 2005-04-19 Dphi Acquisitions, Inc. Digital servo system with feed-forward control loops
US6882603B2 (en) 2001-01-25 2005-04-19 Dphi Acquisitions, Inc. Digital tracking servo system with tracking skate detection
US6809995B2 (en) 2001-01-25 2004-10-26 Dphi Acquisitions, Inc. Digital focus and tracking servo system
US6970410B2 (en) * 2001-01-25 2005-11-29 Dphi Acquisitions, Inc. Focus detection in a digital focus servo system
US7016280B2 (en) * 2001-01-25 2006-03-21 Dphi Acquisitions, Inc. Tracking and focus servo system with defect detection
US7680004B2 (en) * 2001-01-25 2010-03-16 Dphi Acquisitions, Inc. Digital servo system with inverse non-linearity compensation
US6898164B2 (en) 2001-01-25 2005-05-24 Dphi Acquisitions, Inc. Close tracking algorithm in a digital tracking servo system
US6922380B2 (en) 2001-01-25 2005-07-26 Dphi Acquisitions, Inc. Tracking and focus servo system with anti-skate algorithm
US7092322B2 (en) * 2001-01-25 2006-08-15 Dphi Acquisitions, Inc. Calibration of focus error signal offset in a focus servo system
US6885619B2 (en) * 2001-01-25 2005-04-26 Dphi Acquisitions, Inc. Detector input stray light offset calibration in an optical disk drive
US7260031B2 (en) 2001-01-25 2007-08-21 Dphi Acquisitions, Inc. Digital focus and tracking servo system with one-track jump
US7095683B2 (en) * 2001-01-25 2006-08-22 Dphi Acquisitions, Inc. Tracking and focus digital servo system with write abort
US6958957B2 (en) * 2001-01-25 2005-10-25 Dphi Acquisitions, Inc. Digital tracking and focus servo system with TES to FES crosstalk calibration
US6970403B2 (en) * 2001-01-25 2005-11-29 Dphi Acquisition, Inc. Calibration of tracking error signal offset in a tracking servo system
US7023776B2 (en) * 2001-01-25 2006-04-04 Dphi Acquisitions, Inc. Calibration initiation methods for a tracking and focus servo system
US6930963B2 (en) 2001-01-25 2005-08-16 Dphi Acquistions, Inc. Tracking and focus servo system with head load
US6891781B2 (en) * 2001-01-25 2005-05-10 Dphi Acquisitions, Inc. Digital servo system with second order compensator

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DE2445333A1 (de) * 1973-10-01 1975-04-10 Philips Nv Optoelektronisches system zur bestimmung einer abweichung zwischen der istlage und der sollage einer ebene in einem optischen abbildungssystem
US4057833A (en) * 1974-10-03 1977-11-08 U.S. Philips Corporation Centering detection system for an apparatus for playing optically readable record carriers
US4001494A (en) * 1974-11-01 1977-01-04 Zenith Radio Corporation Photoreceptor matrix for optical video playback system
NL187413C (nl) * 1978-03-16 1991-09-16 Philips Nv Registratiedragerlichaam, ingeschreven registratiedrager, werkwijze voor het inschrijven van het registratiedragerlichaam en inrichting voor het uitvoeren van de werkwijze en voor het uitlezen van een ingeschreven registratiedrager.
NL7803517A (nl) * 1978-04-03 1979-10-05 Philips Nv Registratiedrager met een optisch uitleesbare fase- struktuur en inrichting voor het uitlezen.
NL7810462A (nl) * 1978-10-19 1980-04-22 Philips Nv Registratiedrager waarin informatie is aangebracht in een optisch uitleesbare stralingsreflekterende informatiestruktuur
FR2481501B1 (fr) * 1980-04-25 1985-09-13 Philips Nv Porteur d'enregistrement comportant une structure d'information lisible par voie optique et dispositif pour la lecture d'un tel porteur d'enregistrement
US4464567A (en) * 1981-06-30 1984-08-07 Storage Technology Corporation Photoelectric information and focus detector
NL8202058A (nl) * 1982-05-19 1983-12-16 Philips Nv Opto-elektronisch fokusfout-detektiestelsel.
NL8303561A (nl) * 1983-10-17 1985-05-17 Philips Nv Geregelde oscillatorschakeling.

Also Published As

Publication number Publication date
EP0219170B1 (en) 1990-04-25
CA1263477A (en) 1989-11-28
EP0219170A1 (en) 1987-04-22
DE3670714D1 (de) 1990-05-31
AU6382286A (en) 1987-04-16
KR870004425A (ko) 1987-05-09
JPS6292141A (ja) 1987-04-27
NL8502802A (nl) 1987-05-04
US4730295A (en) 1988-03-08

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