ES2193332T3 - Reproduccion de señales digitales. - Google Patents

Reproduccion de señales digitales.

Info

Publication number
ES2193332T3
ES2193332T3 ES97308494T ES97308494T ES2193332T3 ES 2193332 T3 ES2193332 T3 ES 2193332T3 ES 97308494 T ES97308494 T ES 97308494T ES 97308494 T ES97308494 T ES 97308494T ES 2193332 T3 ES2193332 T3 ES 2193332T3
Authority
ES
Spain
Prior art keywords
signal
block
waveform equalization
synchronous clock
waveform
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
ES97308494T
Other languages
English (en)
Inventor
Jumpei Kura
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.)
Sony Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Application granted granted Critical
Publication of ES2193332T3 publication Critical patent/ES2193332T3/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
    • 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
    • G11B20/10222—Improvement or modification of read or write signals clock-related aspects, e.g. phase or frequency adjustment or bit synchronisation
    • G11B20/10231—Improvement or modification of read or write signals clock-related aspects, e.g. phase or frequency adjustment or bit synchronisation wherein an asynchronous, free-running clock is used; Interpolation of sampled 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
    • G11B20/10305—Improvement or modification of read or write signals signal quality assessment
    • G11B20/10314—Improvement or modification of read or write signals signal quality assessment amplitude of the recorded or reproduced signal
    • 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
    • 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
    • G11B20/10037—A/D conversion, D/A conversion, sampling, slicing and digital quantisation or adjusting parameters thereof
    • 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
    • G11B20/10222—Improvement or modification of read or write signals clock-related aspects, e.g. phase or frequency adjustment or bit synchronisation
    • 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
    • G11B20/14—Digital recording or reproducing using self-clocking codes
    • G11B20/1403—Digital recording or reproducing using self-clocking codes characterised by the use of two levels
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers
    • G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2537—Optical discs

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Dc Digital Transmission (AREA)
  • Holo Graphy (AREA)
  • Pulse Circuits (AREA)
  • Networks Using Active Elements (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)

Abstract

UN CIRCUITO DE REPRODUCCION DE SEÑALES DIGITALES ES CAPAZ DE CONTROLAR UNA FUNCION DE TRANSFERENCIA DE UN CIRCUITO DE IGUALACION DE FORMAS DE ONDA, DE FORMA QUE SE PUEDE GENERAR UNA SEÑAL DE RELOJ SINCRONA CON UNA CARACTERISTICA DE TRANSFERENCIA OPTIMA. EL CIRCUITO DE REPRODUCCION DE SEÑALES DIGITALES (1) INCLUYE: UN BLOQUE DE IGUALACION DE FORMAS DE ONDA (10) PARA IGUALAR A FORMA DE ONDA UNA SEÑAL REGENERATIVA, UN BLOQUE DE CONVERSION A BINARIO (20) PARA CONVERTIR A BINARIO LA SEÑAL REGENERATIVA IGUALADA A FORMA DE ONDA, UN BLOQUE DE REPRODUCCION DE LAS SEÑALES DE RELOJ SINCRONAS (30) PARA GENERAR UNA SEÑAL DE RELOJ SINCRONA A PARTIR DE UNA SEÑAL CONVERTIDA A BINARIO, Y UN BLOQUE DE CONTROL DE LA IGUALACION DE LAS FORMAS DE ONDA (40) PARA CONTROLAR UNA FUNCION DE TRANSFERENCIA DEL BLOQUE DE IGUALACION DE LAS FORMAS DE ONDA (10), DE ACUERDO CON UN COMPONENTE DE TEMBLEQUEO EXISTENTE ENTRE LA SEÑAL DE RELOJ SINCRONA Y LA SEÑAL CONVERTIDA A BINARIO. EL BLOQUE DE CONTROL DE IGUALACION DE FORMASDE ONDA (40) SE SUMINISTRA CON UNA SEÑAL DE DIFERENCIA DE FASE ENTRE LA SEÑAL CONVERTIDA A BINARIO Y LA SEÑAL SINCRONA, PARA OBTENER UN VALOR OPTIMO DE LA FUNCION DE TRANSFERENCIA DEL BLOQUE DE IGUALACION DE FORMAS DE ONDA (10) AL UTILIZAR UN MICROORDENADOR, POR EJEMPLO. LA FUNCION DE TRANSFERENCIA SE CONTROLA PARA REDUCIR EL COMPONENTE DE TEMBLEQUEO DE LA SEÑAL DE RELOJ SINCRONA.
ES97308494T 1996-10-29 1997-10-24 Reproduccion de señales digitales. Expired - Lifetime ES2193332T3 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP28710796 1996-10-29
JP8331278A JPH10188482A (ja) 1996-10-29 1996-12-11 デジタル信号再生回路およびデジタル信号再生方法

Publications (1)

Publication Number Publication Date
ES2193332T3 true ES2193332T3 (es) 2003-11-01

Family

ID=26556588

Family Applications (1)

Application Number Title Priority Date Filing Date
ES97308494T Expired - Lifetime ES2193332T3 (es) 1996-10-29 1997-10-24 Reproduccion de señales digitales.

Country Status (7)

Country Link
US (1) US6052350A (es)
EP (1) EP0840317B1 (es)
JP (1) JPH10188482A (es)
KR (1) KR19980033264A (es)
AT (1) ATE238601T1 (es)
DE (1) DE69721183T2 (es)
ES (1) ES2193332T3 (es)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11317018A (ja) * 1998-04-30 1999-11-16 Toshiba Corp ディスク再生装置及びｒｆアンプ制御回路
US6445662B1 (en) * 1998-12-24 2002-09-03 Victor Company Of Japan, Ltd. Reproducing apparatus
JP3548057B2 (ja) * 1999-08-31 2004-07-28 三洋電機株式会社 記録再生方法、および記録再生装置
CN100370546C (zh) * 2002-11-29 2008-02-20 富士通株式会社 具有相差校正装置及数据头部检测装置的数据再现装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4005477A (en) * 1975-11-24 1977-01-25 International Business Machines Corporation Phase equalized readback apparatus and methods
NL8303564A (nl) * 1983-10-17 1985-05-17 Philips Nv Inrichting voor het weergeven van informatie van een optisch uitleesbare registratiedrager.
US4615037A (en) * 1985-01-29 1986-09-30 Ampex Corporation Phase scatter detection and reduction circuit and method
JPH02122734A (ja) * 1988-11-01 1990-05-10 Hitachi Ltd 位相同期制御装置
CA2073944C (en) * 1991-07-26 2000-09-19 Woo H. Paik Carrier phase recovery for an adaptive equalizer
JP3458494B2 (ja) * 1993-12-24 2003-10-20 ソニー株式会社 クロック信号再生回路およびデータ再生回路
US5835544A (en) * 1993-12-24 1998-11-10 Sony Corporation Clock signal reproduction circuit and data reproduction circuit
JP3630741B2 (ja) * 1994-12-21 2005-03-23 キヤノン株式会社 データ処理装置

Also Published As

Publication number Publication date
EP0840317A2 (en) 1998-05-06
KR19980033264A (ko) 1998-07-25
JPH10188482A (ja) 1998-07-21
DE69721183D1 (de) 2003-05-28
DE69721183T2 (de) 2004-02-26
EP0840317A3 (en) 1999-04-21
EP0840317B1 (en) 2003-04-23
ATE238601T1 (de) 2003-05-15
US6052350A (en) 2000-04-18

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