ES2101801T3 - Dispositivo para reproducir una señal electrica de una pista en un soporte de registro magnetico. - Google Patents

Dispositivo para reproducir una señal electrica de una pista en un soporte de registro magnetico.

Info

Publication number
ES2101801T3
ES2101801T3 ES92203863T ES92203863T ES2101801T3 ES 2101801 T3 ES2101801 T3 ES 2101801T3 ES 92203863 T ES92203863 T ES 92203863T ES 92203863 T ES92203863 T ES 92203863T ES 2101801 T3 ES2101801 T3 ES 2101801T3
Authority
ES
Spain
Prior art keywords
control signal
filter means
signal input
output
filter
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
ES92203863T
Other languages
English (en)
Inventor
Josephus Arnoldus Henr Kahlman
Albert Maria Arnold Rijckaert
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 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 Philips Electronics NV filed Critical Philips Electronics NV
Application granted granted Critical
Publication of ES2101801T3 publication Critical patent/ES2101801T3/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
    • G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/02—Control of operating function, e.g. switching from recording to reproducing
    • G11B15/05—Control of operating function, e.g. switching from recording to reproducing by sensing features present on or derived from record carrier or container
    • G11B15/087—Control of operating function, e.g. switching from recording to reproducing by sensing features present on or derived from record carrier or container by sensing recorded signals
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/10009—Improvement or modification of read or write signals
    • G11B20/10046—Improvement or modification of read or write signals filtering or equalising, e.g. setting the tap weights of an FIR filter
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/10009—Improvement or modification of read or write signals
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/02—Recording, reproducing, or erasing methods; Read, write or erase circuits therefor
    • G11B5/027—Analogue recording
    • G11B5/035—Equalising
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
    • H03J7/02—Automatic frequency control

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Networks Using Active Elements (AREA)
  • Digital Magnetic Recording (AREA)
  • Magnetic Heads (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)
  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)

Abstract

EL DISPOSITIVO INCLUYE UNA CABEZA MAGNETICA DE LECTURA (1) PARA LEER DESDE LA PISTA UNA SEÑAL ELECTRICA Y PARA SUMINISTRAR DICHA SEÑAL ELECTRICA A UNA SALIDA, Y UN FILTRO DE ECUALIZACION AUTOMATICA (5), QUE INCLUYE UN FILTRO DE TRANSCONDUCTANCIACONDENSADOR (6). EL FILTRO (6) TIENE UNA SALIDA DE SEÑAL SINTONIZABLE (8). EL FILTRO ECUALIZADOR (5) TIENE UNA ENTRADA PARA UNA SEÑAL DE CONTROL (15) Y ESTA ADAPTADO PARA ECUALIZAR AUTOMATICAMENTE LA SEÑAL ELECTRICA LEIDA DESDE LA PISTA EN RESPUESTA A LA SEÑAL DE CONTROL SUMINISTRADA A SU ENTRADA DE SEÑALES DE CONTROL, Y PARA SUMINISTRAR UNA SEÑAL DE SALIDA ECUALIZADA EN LA SALIDA (12). LA ENTRADA SINTONIZABLE DE SEÑAL DEL FILTRO (6) SE ACOPLA A LA ENTRADA DE LA SEÑAL DE CONTROL DEL FILTRO ECUALIZADOR. EL DISPOSITIVO COMPRENDE ADEMAS UN GENERADOR DE SEÑALES DE CONTROL (13, 16) QUE TIENE UNA SALIDA (16) ACOPLADA A LA ENTRADA DE LA SEÑAL DE CONTROL (15) DEL FILTRO ECUALIZADOR, EL GENERADOR ESTA ADAPTADO PARA GENERAR UNA SEÑAL DE CONTROL Y PARA SUMINISTRAR ESTA SEÑAL DE CONTROL A SU SALIDA. EL FILTRO DE TRANSCONDUCTANCIA-CONDENSADOR TIENE UNA CARACTERISTICA DE MAGNITUD DE FILTRADO QUE SE INCREMENTA A MEDIDA QUE SE INCREMENTAN LAS FRECUENCIAS EN UNA BANDA DE FRECUENCIA POR DEBAJO DE UNA FRECUENCIA DE REFERENCIA DEL FILTRO. EL FILTRO DE TRANSCONDUCTANCIA-CONDENSADOR ESTA ADAPTADO PARA CONTROLAR LA FRECUENCIA DE REFERENCIA EN LA CARACTERISTICA DEL FILTRO EN RESPUESTA A LA SEÑAL DE CONTROL, DE FORMA QUE PUEDA VARIAR EL ANGULO DE INCLINACION DE LA CURVA DEL FILTRO POR DEBAJO DE LA FRECUENCIA DE REFERENCIA.
ES92203863T 1991-12-18 1992-12-10 Dispositivo para reproducir una señal electrica de una pista en un soporte de registro magnetico. Expired - Lifetime ES2101801T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP91203350 1991-12-18

Publications (1)

Publication Number Publication Date
ES2101801T3 true ES2101801T3 (es) 1997-07-16

Family

ID=8208085

Family Applications (1)

Application Number Title Priority Date Filing Date
ES92203863T Expired - Lifetime ES2101801T3 (es) 1991-12-18 1992-12-10 Dispositivo para reproducir una señal electrica de una pista en un soporte de registro magnetico.

Country Status (8)

Country Link
US (1) US6252734B1 (es)
EP (1) EP0549030B1 (es)
JP (1) JPH05242408A (es)
KR (1) KR100251439B1 (es)
AT (1) ATE150202T1 (es)
DE (1) DE69218154T2 (es)
ES (1) ES2101801T3 (es)
TW (1) TW222029B (es)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5943368A (en) * 1996-07-08 1999-08-24 U.S. Philips Corporation Transmission, recording and reproduction of a digital information signal
JP3459563B2 (ja) 1998-03-06 2003-10-20 パイオニア株式会社 波形等化器および記録情報再生装置
JP2000306336A (ja) * 1999-04-19 2000-11-02 Sony Corp 波形等化装置、波形等化装置の最適化方法、及びデータ再生装置
TW480832B (en) * 1999-12-20 2002-03-21 Koninkl Philips Electronics Nv An arrangement for receiving a digital signal from a transmission medium
GB2357646B (en) 1999-12-23 2004-04-21 Ericsson Telefon Ab L M Equaliser circuits
CN100401388C (zh) 2002-08-22 2008-07-09 Lg电子株式会社 高密度光盘的记录/再现方法
KR100932506B1 (ko) * 2003-02-27 2009-12-17 엘지전자 주식회사 고밀도 광디스크의 재생 제어정보 관리 및 데이터 재생제어방법
US9548080B2 (en) 2015-06-18 2017-01-17 International Business Machines Corporation Time-varying filter for high-frequency reel disturbance rejection

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2469043B1 (fr) * 1979-10-31 1986-01-24 Enertec Filtres accordes par commutation et utilisation dans un egalisateur d'enregistrement magnetique
US4479152A (en) * 1982-04-22 1984-10-23 Sperry Corporation Adjustable equalizer
US4564869A (en) * 1983-11-21 1986-01-14 Eastman Kodak Company Zoned equalization for a magnetic disc
JPS6152096A (ja) * 1984-08-22 1986-03-14 Victor Co Of Japan Ltd 情報信号記録媒体再生装置
KR900001594B1 (ko) * 1985-04-30 1990-03-15 가부시끼가이샤 도오시바 플로피디스크장치의 독출회로
US4945311A (en) * 1988-08-29 1990-07-31 Seagate Technology, Inc. Electronically variable equalizer
EP0387813B1 (en) 1989-03-13 1997-06-25 Sony Corporation Automatic equalizer
US5274512A (en) 1989-03-13 1993-12-28 Sony Corporation Coefficient control system for digital equalizer using orthogonal oscillation

Also Published As

Publication number Publication date
DE69218154T2 (de) 1997-08-21
KR100251439B1 (ko) 2000-04-15
EP0549030A1 (en) 1993-06-30
ATE150202T1 (de) 1997-03-15
US6252734B1 (en) 2001-06-26
KR930014434A (ko) 1993-07-23
TW222029B (es) 1994-04-01
DE69218154D1 (de) 1997-04-17
JPH05242408A (ja) 1993-09-21
EP0549030B1 (en) 1997-03-12

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