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
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.
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)
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)
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 |
-
1996
- 1996-12-11 JP JP8331278A patent/JPH10188482A/ja active Pending
-
1997
- 1997-10-24 AT AT97308494T patent/ATE238601T1/de not_active IP Right Cessation
- 1997-10-24 EP EP97308494A patent/EP0840317B1/en not_active Expired - Lifetime
- 1997-10-24 ES ES97308494T patent/ES2193332T3/es not_active Expired - Lifetime
- 1997-10-24 DE DE69721183T patent/DE69721183T2/de not_active Expired - Fee Related
- 1997-10-27 US US08/958,010 patent/US6052350A/en not_active Expired - Fee Related
- 1997-10-29 KR KR1019970055866A patent/KR19980033264A/ko not_active Application Discontinuation
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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