ES8701403A1 - Un aparato para leer un soporte de registro discoidal - Google Patents

Un aparato para leer un soporte de registro discoidal

Info

Publication number
ES8701403A1
ES8701403A1 ES548995A ES548995A ES8701403A1 ES 8701403 A1 ES8701403 A1 ES 8701403A1 ES 548995 A ES548995 A ES 548995A ES 548995 A ES548995 A ES 548995A ES 8701403 A1 ES8701403 A1 ES 8701403A1
Authority
ES
Spain
Prior art keywords
movement
track
light point
disc
reading
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
Application number
ES548995A
Other languages
English (en)
Other versions
ES548995A0 (es
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
Publication of ES548995A0 publication Critical patent/ES548995A0/es
Publication of ES8701403A1 publication Critical patent/ES8701403A1/es
Expired 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
    • G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
    • 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
    • G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
    • G11B7/08505—Methods for track change, selection or preliminary positioning by moving the head
    • G11B7/08517—Methods for track change, selection or preliminary positioning by moving the head with tracking pull-in 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
    • G11B7/095—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
    • G11B7/0953—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 eccentricity of the disc or disc tracks

Landscapes

  • Optical Recording Or Reproduction (AREA)
  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
  • Automatic Disk Changers (AREA)
  • Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)

Abstract

APARATO PARA LEER UN SOPORTE DE REGISTRO DISCOIDAL. COMPRENDE UNA FUENTE DE LUZ (7), UN SISTEMA DE OBJETIVO (8), UN SISTEMA DE DETECCION (11A, 11B, 11C, 11D), MEDIOS DE POSICIONAMIENTO RADIAL (7, 8, 9, 10, 11), UN SISTEMA DE ADQUISICION O SEGUIMIENTO, Y MEDIOS DE DETECTAR EL SENTIDO DEL MOVIMIENTO RADIAL RELATIVO ENTRE EL PUNTO DE LUZ Y LA PISTA DE INFORMACION Y DE SUMINISTRAR UNA PRIMERA SEÑAL DE CONTROL AL SISTEMA DE ADQUISICION EN TORNO AL INSTANTE EN QUE, DE ESTAR SIN FUNCIONAR LOS MEDIOS DE POSICIONAMIENTO RADIAL, EL MOVIMIENTO RADIAL RELATIVO CAMBIARIA, PASANDO DE SER UN MOVIMIENTO DEL PUNTO DE LUZ HACIA FUERA, SOBRE LA PISTA, A SER UN MOVIMIENTO DEL PUNTO DE LUZ HACIA DENTRO SOBRE LA PISTA. TIENE UTILIDAD COMO PRODUCTO DIGITAL DE AUDIO DE DISCOS COMPACTOS.
ES548995A 1984-11-21 1985-11-18 Un aparato para leer un soporte de registro discoidal Expired ES8701403A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL8403534A NL8403534A (nl) 1984-11-21 1984-11-21 Inrichting voor het uitlezen van een schijfvormige registratiedrager.

Publications (2)

Publication Number Publication Date
ES548995A0 ES548995A0 (es) 1986-11-16
ES8701403A1 true ES8701403A1 (es) 1986-11-16

Family

ID=19844796

Family Applications (1)

Application Number Title Priority Date Filing Date
ES548995A Expired ES8701403A1 (es) 1984-11-21 1985-11-18 Un aparato para leer un soporte de registro discoidal

Country Status (11)

Country Link
US (1) US4697258A (es)
EP (1) EP0183303B1 (es)
JP (1) JPH073691B2 (es)
KR (1) KR930006350B1 (es)
AT (1) ATE50660T1 (es)
AU (1) AU585764B2 (es)
CA (1) CA1246217A (es)
DE (1) DE3576234D1 (es)
DK (1) DK532285A (es)
ES (1) ES8701403A1 (es)
NL (1) NL8403534A (es)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06101125B2 (ja) * 1986-05-21 1994-12-12 キヤノン株式会社 光学的情報記録再生装置
US5070495A (en) * 1989-04-12 1991-12-03 International Business Machines Corporation Write calibration for magnetooptic disk recorders
US5327410A (en) * 1989-09-30 1994-07-05 Deutsche Thomson-Brandt Gmbh Direction-determination logic as for a signal pickup in recorded signal recovery apparatus
US5812506A (en) * 1992-04-10 1998-09-22 Wea Manufacturing, Inc. System and methods for measuring and correcting for overshoot in a high frequency (HF) signal generated by a compact disc player during testing of a compact disc
JPH0896379A (ja) * 1994-09-21 1996-04-12 Nec Corp 光ヘッドのトラッキング制御装置
TW509913B (en) * 2001-03-21 2002-11-11 Via Tech Inc Optical disk driver tracking method
JP5314884B2 (ja) * 2007-12-05 2013-10-16 日立コンシューマエレクトロニクス株式会社 光ディスクドライブ装置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4037252A (en) * 1973-11-10 1977-07-19 U.S. Philips Corporation Apparatus for reading a disc-shaped record carrier with plural scanning spots for stable radial tracking
JPS6040093B2 (ja) * 1978-09-09 1985-09-09 パイオニアビデオ株式会社 トラッキングサ−ボ引込装置
NL7812111A (nl) * 1978-12-13 1980-06-17 Philips Nv Inrichting voor het optisch uitlezen van een schijf- vormige registratiedrager, in het bijzonder het snel opzoeken van een gewenst programmagedeelte.
JPS6048809B2 (ja) * 1979-10-16 1985-10-29 パイオニアビデオ株式会社 情報読取装置におけるトラッキングサ−ボ引込装置
US4365324A (en) * 1980-11-19 1982-12-21 Rca Corporation Eccentricity control device
KR880000999B1 (ko) * 1981-11-25 1988-06-10 미쓰다 가쓰시게 광학적 정보 기억장치
JPS58143472A (ja) * 1982-02-22 1983-08-26 Hitachi Ltd 記録情報再生装置のトラツキングサ−ボ制御装置
JPS59185077A (ja) * 1983-04-05 1984-10-20 Pioneer Electronic Corp トラツキングサ−ボ引込装置
EP0125019A1 (en) * 1983-04-05 1984-11-14 Pioneer Electronic Corporation Device for controlling recording track jump operations

Also Published As

Publication number Publication date
DK532285A (da) 1986-05-22
ES548995A0 (es) 1986-11-16
AU5004585A (en) 1986-05-29
DK532285D0 (da) 1985-11-18
NL8403534A (nl) 1986-06-16
EP0183303A1 (en) 1986-06-04
KR860004396A (ko) 1986-06-20
CA1246217A (en) 1988-12-06
US4697258A (en) 1987-09-29
ATE50660T1 (de) 1990-03-15
DE3576234D1 (de) 1990-04-05
JPS61126636A (ja) 1986-06-14
AU585764B2 (en) 1989-06-22
EP0183303B1 (en) 1990-02-28
KR930006350B1 (ko) 1993-07-14
JPH073691B2 (ja) 1995-01-18

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19971001