ES2034063T3 - Procedimiento y aparato para compensar la tension de desnivel de un amplificador de regulacion. - Google Patents

Procedimiento y aparato para compensar la tension de desnivel de un amplificador de regulacion.

Info

Publication number
ES2034063T3
ES2034063T3 ES198888113118T ES88113118T ES2034063T3 ES 2034063 T3 ES2034063 T3 ES 2034063T3 ES 198888113118 T ES198888113118 T ES 198888113118T ES 88113118 T ES88113118 T ES 88113118T ES 2034063 T3 ES2034063 T3 ES 2034063T3
Authority
ES
Spain
Prior art keywords
control
control circuit
order
compensate
data
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
ES198888113118T
Other languages
English (en)
Inventor
Dieter Baas
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.)
Deutsche Thomson Brandt GmbH
Original Assignee
Deutsche Thomson Brandt GmbH
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 Deutsche Thomson Brandt GmbH filed Critical Deutsche Thomson Brandt GmbH
Application granted granted Critical
Publication of ES2034063T3 publication Critical patent/ES2034063T3/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
    • G11B7/08—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
    • G11B7/094—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
    • G11B7/0908—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

Landscapes

  • Optical Recording Or Reproduction (AREA)
  • Circuits Of Receivers In General (AREA)
  • Amplifiers (AREA)
  • Control Of Electric Motors In General (AREA)

Abstract

APARATO DE REPRODUCCION DE DATOS, QUE SE PRUEDEN LEER MEDIANTE UN DISPOSITIVO DE EXPLORACION OPTICO, SIN CONTACTO POR UN SOPORTE REGISTRADOR. 2.1. SEMEJANTES APARATOS ESTAN FORMADOS CON UN CIRCUITO REGULADOR DE FOCOS PARA ENFOCAR LOS RAYOS DE LUZ, QUE EXPLORAN LOS DATOS, SOBRE UN SOPORTE REGISTRADOR Y CON UN CIRCUITO REGULADOR DE PISTAS, PARA PODER LLEVAR EL RAYO MDE LUZ SOBRE LAS PISTAS DE DATOS. LOS AMPLIFICADORES DE REGULACION (FR,TR) DE AMBOS CIRCUITOS REGULADORES SON ADOLECIDOS (DE DEFECTOS) CON UNA TENSION OFFSET, QUE SE MODIFICA CON LA TEMPERATURA Y LA MADURACION DEL AMPLIFICADOR REGULADOR. 2.2. PARA COMPENSAR AUTOMATICAMENTE LA TENSION-OFFSET, SE ESTAMPAN PARA EL CIRCUITO REGULADOR POLARIDADES, QUE ALTERNAN UMPULSOS DE MEDICION Y QUE DEPOSITAN EL TIEMPO Y SE COMPARAN QUE TRANSCURREN HASTA QUE LAS CONTESTACIONES DE IMPULSO SOBREPASAN UN NIVEL DETERMINADO, PRECALCULADO. UNA TENSION DE COMPENSACION-OFF-SET, QUE SE ENCUTRA EN LA ENTRADA DEL AMPLIFICADOR REGULADOR (FR,TR), SE ,ODIFICA TANTO TIEMPO HASTA QUE LOS TIEMPOS COMPARADOS PARA DOS CONTESTACIONES DE IMPULSO NO SON IGUALES. 2.3. COMPACT-DISC, DRAW-TOCADISCOS, APARATOS MAGNETO-OPTICOS, VIDEO-TOCADISCOS.
ES198888113118T 1987-09-30 1988-08-12 Procedimiento y aparato para compensar la tension de desnivel de un amplificador de regulacion. Expired - Lifetime ES2034063T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19873732924 DE3732924A1 (de) 1987-09-30 1987-09-30 Geraet zur wiedergabe von daten

Publications (1)

Publication Number Publication Date
ES2034063T3 true ES2034063T3 (es) 1993-04-01

Family

ID=6337207

Family Applications (1)

Application Number Title Priority Date Filing Date
ES198888113118T Expired - Lifetime ES2034063T3 (es) 1987-09-30 1988-08-12 Procedimiento y aparato para compensar la tension de desnivel de un amplificador de regulacion.

Country Status (12)

Country Link
US (1) US4924454A (es)
EP (1) EP0309705B1 (es)
JP (1) JP2771187B2 (es)
KR (1) KR960013488B1 (es)
AT (1) ATE78117T1 (es)
DE (2) DE3732924A1 (es)
DK (1) DK547888A (es)
ES (1) ES2034063T3 (es)
GR (1) GR3005800T3 (es)
HK (1) HK77796A (es)
HU (1) HU203606B (es)
MY (1) MY103778A (es)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5016992A (en) * 1989-03-16 1991-05-21 Forschungszentrum Julich Gmbh Method of and apparatus for the reading of magnetically stored information
EP0895228A3 (en) * 1997-07-31 1999-11-24 THOMSON multimedia S.A. A tracking system for optical storage media
DE102006045415A1 (de) * 2006-09-26 2008-04-03 Infineon Technologies Ag Bauelementanordnung mit einem Träger

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4232201A (en) * 1978-11-24 1980-11-04 Mca Discovision, Inc. Dithered center tracking system
JPS5853030A (ja) * 1981-09-22 1983-03-29 Mitsubishi Electric Corp 光学再生装置の追跡装置
JPS5873023A (ja) * 1981-10-27 1983-05-02 Pioneer Electronic Corp 情報読取装置におけるトラツキングサ−ボ信号発生装置
JPS6061925A (ja) * 1983-09-14 1985-04-09 Ricoh Co Ltd 光情報記録再生装置
JPS60195745A (ja) * 1984-03-16 1985-10-04 Pioneer Electronic Corp トラツキングサ−ボ信号生成方式
JPS6378386A (ja) * 1986-09-19 1988-04-08 Pioneer Electronic Corp 微調サ−ボ装置におけるオフセツト補償回路

Also Published As

Publication number Publication date
HUT51784A (en) 1990-05-28
KR890005684A (ko) 1989-05-16
GR3005800T3 (es) 1993-06-07
MY103778A (en) 1993-09-30
EP0309705B1 (de) 1992-07-08
DE3732924A1 (de) 1989-04-13
DK547888D0 (da) 1988-09-30
HK77796A (en) 1996-05-10
ATE78117T1 (de) 1992-07-15
KR960013488B1 (ko) 1996-10-05
DK547888A (da) 1989-03-31
EP0309705A1 (de) 1989-04-05
JP2771187B2 (ja) 1998-07-02
JPH01113923A (ja) 1989-05-02
DE3872638D1 (de) 1992-08-13
US4924454A (en) 1990-05-08
HU203606B (en) 1991-08-28

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