ES2151228T3 - Preamplificador de procesamiento de señales para un sistema de disco optico. - Google Patents

Preamplificador de procesamiento de señales para un sistema de disco optico.

Info

Publication number
ES2151228T3
ES2151228T3 ES97301230T ES97301230T ES2151228T3 ES 2151228 T3 ES2151228 T3 ES 2151228T3 ES 97301230 T ES97301230 T ES 97301230T ES 97301230 T ES97301230 T ES 97301230T ES 2151228 T3 ES2151228 T3 ES 2151228T3
Authority
ES
Spain
Prior art keywords
agc
unit
output signal
signal
preamplifier
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
ES97301230T
Other languages
English (en)
Inventor
Chun-Sup Kim
Yong-Serk Kim
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.)
Samsung Electronics Co Ltd
Original Assignee
Samsung Electronics Co Ltd
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 Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Application granted granted Critical
Publication of ES2151228T3 publication Critical patent/ES2151228T3/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
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/3005—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Control Of Amplification And Gain Control (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)

Abstract

SE PRESENTA UN PREAMPLIFICADOR (50A) PARA UN SISTEMA DE DISCO OPTICO QUE UTILIZA UN SISTEMA DE CONTROL DE GANANCIA AUTOMATICO (AGC), OBTENIENDO DE ESTA FORMA UNA REPUESTA CONSTANTE Y UNA SEÑAL DE SALIDA ESTABLE PARA LAS SEÑALES DE ENTRADA DE UNA CIERTA AMPLITUD. EL PREAMPLIFICADOR INCLUYE UNA AMPLIFICADOR DE FRECUENCIAS DE RADIO (20) PARA AMPLIFICAR UNA SEÑAL DE SALIDA DE UNA UNIDAD LECTORA (10), UNA UNIDAD AGC (23) PARA AMPLIFICAR UNA SEÑAL DE SALIDA DEL AMPLIFICADOR DE FRECUENCIAS DE RADIO (20) HASTA UN NIVEL DESEADO, UNA UNIDAD DETECTORA AGC (25) ACOPLADA EN SU TERMINAL DE ENTRADA A UN TERMINAL DE SALIDA DE LA UNIDAD AGC (23) Y EN SU TERMINAL DE SALIDA A UN TERMINAL DE ENTRADA DE LA UNIDAD AGC (23), LA UNIDAD DETECTORA AGC (25) SIRVE PARA RECTIFICAR UNA SEÑAL DE SALIDA DE LA UNIDAD AGC (23), PARA COMPARAR LA SEÑAL RECTIFICADA CON UNA SEÑAL DE REFERENCIA QUE TIENE UN NIVEL PREDETERMINADO Y PARA ENVIAR LA SEÑAL RESULTANTE OBTENIDA MEDIANTE LA COMPARACION A LA UNIDAD AGC (23), Y UNA UNIDADDE SELECCION DE MODO (60) ACOPLADA A LA UNIDAD DETECTORA AGC (25) Y ADAPTADA PARA SELECCIONAR UNO DE VARIOS MODOS QUE SE CORRESPONDEN RESPECTIVAMENTE CON DIFERENTES CARACTERISTICAS DE ECUALIZACION.
ES97301230T 1996-02-26 1997-02-25 Preamplificador de procesamiento de señales para un sistema de disco optico. Expired - Lifetime ES2151228T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019960004650A KR100206334B1 (ko) 1996-02-26 1996-02-26 신호처리를 위한 광디스크의 프리앰프

Publications (1)

Publication Number Publication Date
ES2151228T3 true ES2151228T3 (es) 2000-12-16

Family

ID=19451787

Family Applications (1)

Application Number Title Priority Date Filing Date
ES97301230T Expired - Lifetime ES2151228T3 (es) 1996-02-26 1997-02-25 Preamplificador de procesamiento de señales para un sistema de disco optico.

Country Status (7)

Country Link
US (1) US5745469A (es)
EP (1) EP0792016B1 (es)
JP (1) JP2820676B2 (es)
KR (1) KR100206334B1 (es)
CN (1) CN1086047C (es)
DE (1) DE69702788T2 (es)
ES (1) ES2151228T3 (es)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100197619B1 (ko) * 1996-10-04 1999-06-15 윤종용 가변속 재생이 가능한 광디스크시스템의 등화기특성 보상장치
JP4036515B2 (ja) * 1997-12-22 2008-01-23 松下電器産業株式会社 光ディスク装置
CN1295685C (zh) * 2003-11-24 2007-01-17 联发科技股份有限公司 光碟机的自动增益控制装置的控制电路
KR100555704B1 (ko) * 2004-03-09 2006-03-03 삼성전자주식회사 광 재생장치 및 그의 자동 이득 조정방법
JP4244907B2 (ja) * 2004-10-25 2009-03-25 ソニー株式会社 光ディスク装置
KR100790967B1 (ko) * 2005-07-27 2008-01-02 삼성전자주식회사 자동이득 조절기의 제어전압을 디지털적으로 제어할 수있는 자동이득 조절기 및 제어방법
KR100802125B1 (ko) 2005-08-22 2008-02-11 삼성전자주식회사 자동이득 제어기
US20090074993A1 (en) * 2007-09-18 2009-03-19 Gm Global Technology Operations, Inc. Active material activated cover

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3725646A (en) * 1971-04-19 1973-04-03 Minnesota Mining & Mfg System for reproducing digital information
JPS5686581A (en) * 1979-12-18 1981-07-14 Fuji Xerox Co Ltd Keyed agc circuit in video information transmitter
AU551633B2 (en) * 1980-11-27 1986-05-08 Sony Corporation Signal level detecting circuit
JP2667522B2 (ja) * 1989-07-06 1997-10-27 株式会社日立製作所 光ディスク装置
JP2600402B2 (ja) * 1989-11-20 1997-04-16 松下電器産業株式会社 光ディスク信号再生装置
JP2852165B2 (ja) * 1991-11-12 1999-01-27 三星電子株式会社 ディジタル磁気記録再生装置のピックアップ信号補正装置
JP3293240B2 (ja) * 1993-05-18 2002-06-17 ヤマハ株式会社 ディジタル信号処理装置

Also Published As

Publication number Publication date
CN1086047C (zh) 2002-06-05
DE69702788D1 (de) 2000-09-21
EP0792016A1 (en) 1997-08-27
CN1162816A (zh) 1997-10-22
JPH09320057A (ja) 1997-12-12
DE69702788T2 (de) 2000-12-28
US5745469A (en) 1998-04-28
JP2820676B2 (ja) 1998-11-05
KR100206334B1 (ko) 1999-07-01
KR970063155A (ko) 1997-09-12
EP0792016B1 (en) 2000-08-16

Similar Documents

Publication Publication Date Title
KR100190976B1 (en) High dynamic range closed loop automatic gain control system
SE8703822L (sv) Forfarande och kretskoppling for automatisk forsterkningsstyrning av en signal
ATE48044T1 (de) Rauchanzeigegeraet.
EP0896439A3 (en) Transmission power control device capable of varying a transmission power at a wide range
EP0964539A3 (en) Receiver capable of outputting a high quality signal without regard to an input signal level
ES2151228T3 (es) Preamplificador de procesamiento de señales para un sistema de disco optico.
JPS5711548A (en) Optical receiving circuit
US7095994B1 (en) Method and apparatus for dynamic biasing of baseband circuitry in a communication system receiver
JPS6047783B2 (ja) 自動利得制御方式
KR100660377B1 (ko) 정전류 및 정전압원을 이용한 적외선 수신장치
JPH0629783B2 (ja) 光量検出装置
JPH0375585A (ja) 媒体検出用フォトセンサ回路
JPS5710472A (en) Ftc circuit in radar and similar device
JPS6436131A (en) Automatic gain control system for optical receiver
KR950022150A (ko) 가변 감쇠기를 이용한 자동 이득 조절장치
JPS57111144A (en) Optical automatic gain control system
JPS56111311A (en) Intermediate-frequency amplifying device with function of limiting input amplitude
JPS57203307A (en) Automatic gain control circuit of photodetecting system
KR960027466A (ko) 통신위성 중계기용 무선 주파수(rf) 신호 자동레벨 조절장치 및 방법
JPH05160793A (ja) 光空間伝送装置
JPS6474426A (en) Light quantity detecting device
JPS58159042A (ja) キヤリア検出回路
JPH03136419A (ja) 光受信装置
ATE94708T1 (de) Einrichtung zur verstaerkungsanpassung beim empfangen von radionachrichtensignalen.
KR19990059043A (ko) 아이 에프 신호 자동 이득 제어 회로

Legal Events

Date Code Title Description
FG2A Definitive protection

Ref document number: 792016

Country of ref document: ES