FR2439506A1 - Circuit de reglage automatique de l'amplification d'un signal - Google Patents

Circuit de reglage automatique de l'amplification d'un signal

Info

Publication number
FR2439506A1
FR2439506A1 FR7925921A FR7925921A FR2439506A1 FR 2439506 A1 FR2439506 A1 FR 2439506A1 FR 7925921 A FR7925921 A FR 7925921A FR 7925921 A FR7925921 A FR 7925921A FR 2439506 A1 FR2439506 A1 FR 2439506A1
Authority
FR
France
Prior art keywords
circuit
automatically adjusting
amplification
signal amplification
input signal
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.)
Granted
Application number
FR7925921A
Other languages
English (en)
Other versions
FR2439506B1 (fr
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.)
Racal Milgo Inc
Original Assignee
Racal Milgo Inc
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 Racal Milgo Inc filed Critical Racal Milgo Inc
Publication of FR2439506A1 publication Critical patent/FR2439506A1/fr
Application granted granted Critical
Publication of FR2439506B1 publication Critical patent/FR2439506B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/001—Digital control of analog signals
    • 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

Landscapes

  • Control Of Amplification And Gain Control (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Analogue/Digital Conversion (AREA)
  • Amplifiers (AREA)

Abstract

L'INVENTION CONCERNE UN CIRCUIT DE REGLAGE AUTOMATIQUE DE L'AMPLIFICATION D'UN SIGNAL D'ENTREE. CE CIRCUIT COMPORTE UNE PARTIE ANALOGIQUE DESTINEE A REGLER APPROXIMATIVEMENT L'AMPLIFICATION PAR ACCROISSEMENTS DISCONTINUS, ET UNE PARTIE NUMERIQUE DE REGLAGE FIN QUI PERMET DE DONNER A L'AMPLIFICATION UNE VALEUR PRECISE. DOMAINE D'APPLICATION: TRANSMISSION DE DONNEES.
FR7925921A 1978-10-19 1979-10-18 Circuit de reglage automatique de l'amplification d'un signal Granted FR2439506A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/952,650 US4213097A (en) 1978-10-19 1978-10-19 Hybrid automatic gain control circuit

Publications (2)

Publication Number Publication Date
FR2439506A1 true FR2439506A1 (fr) 1980-05-16
FR2439506B1 FR2439506B1 (fr) 1983-08-19

Family

ID=25493107

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7925921A Granted FR2439506A1 (fr) 1978-10-19 1979-10-18 Circuit de reglage automatique de l'amplification d'un signal

Country Status (9)

Country Link
US (1) US4213097A (fr)
JP (1) JPS5597714A (fr)
BE (1) BE879540A (fr)
CA (1) CA1138058A (fr)
CH (1) CH650884A5 (fr)
DE (1) DE2942106A1 (fr)
FR (1) FR2439506A1 (fr)
GB (1) GB2035732B (fr)
SE (1) SE438223B (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0025607A2 (fr) * 1979-09-18 1981-03-25 CSELT Centro Studi e Laboratori Telecomunicazioni S.p.A. Procédé et circuit de réglage automatique de gain dans des installations électroniques
EP0069515A2 (fr) * 1981-06-30 1983-01-12 Fujitsu Limited Circuit numérique de commande automatique de gain
EP0213224A1 (fr) * 1985-08-28 1987-03-11 International Business Machines Corporation Méthode pour l'acquisition rapide du gain dans un récepteur modem
EP0410629A2 (fr) * 1989-07-26 1991-01-30 Nortel Networks Corporation Commande automatique d'un paramètre d'un signal

Families Citing this family (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57138208A (en) * 1981-02-20 1982-08-26 Hitachi Ltd Power detecting circuit and gain control circuit using it
US4398153A (en) * 1981-05-06 1983-08-09 The United States Of America As Represented By The Secretary Of The Army Harmonic generator
US4464723A (en) * 1981-12-31 1984-08-07 Rca Corporation Digital gain control system
US4434439A (en) * 1982-02-22 1984-02-28 Rca Corporation Digital television AGC arrangement
US4494212A (en) * 1982-03-03 1985-01-15 The Perkin-Elmer Corporation Variable gain amplifier
GB2116793B (en) * 1982-03-03 1986-01-29 Perkin Elmer Corp Variable gain amplifier
US4447826A (en) * 1982-03-18 1984-05-08 Rca Corporation Digital television receiver automatic chroma control system
US4477779A (en) * 1982-07-30 1984-10-16 The United States Of America As Represented By The Secretary Of The Navy Dual channel gated peak detector
US4611342A (en) * 1983-03-01 1986-09-09 Racal Data Communications Inc. Digital voice compression having a digitally controlled AGC circuit and means for including the true gain in the compressed data
US4609788A (en) * 1983-03-01 1986-09-02 Racal Data Communications Inc. Digital voice transmission having improved echo suppression
US4604645A (en) * 1983-09-30 1986-08-05 Rca Corporation Coarse/fine automatic chrominance gain control using a gain adjustable IF amplifier in a digital television receiver
US4689804A (en) * 1985-08-14 1987-08-25 Racal Data Communications Inc. Method and apparatus for reduction of sinusoidal phase jitter in a high speed data modem
US4747065A (en) * 1985-10-11 1988-05-24 International Business Machines Corporation Automatic gain control in a digital signal processor
US4785418A (en) * 1986-08-29 1988-11-15 International Business Machines Corporation Proportional automatic gain control
US4731851A (en) * 1986-09-24 1988-03-15 Rca Corporation Digital signal gain control circuitry for varying digital signals in substantially equal db steps
FI92778C (fi) * 1986-09-24 1994-12-27 Rca Licensing Corp Digitaalisignaalin amplitudinsäätöjärjestelmä digitaalisignaalien muuttamiseksi jokseenkin tasaisin dB-askelin
US4870370A (en) * 1988-02-19 1989-09-26 Silicon Systems, Inc. Method and apparatus for two stage automatic gain control
FR2676875B1 (fr) * 1991-05-24 1997-01-03 Alcatel Espace Dispositif amplificateur programmable.
US5375145A (en) * 1992-08-27 1994-12-20 Quantum Corporation Multi-mode gain control loop for PRML class IV sampling data detection channel
DE19549402C2 (de) * 1994-03-18 2003-09-11 Fujitsu Ltd Phasensynchronisationsschaltung (PLL) in einer PRML-Regenerationsvorrichtung
GB2297443B (en) * 1995-01-26 1999-09-08 Sony Uk Ltd Amplifier
JP3120737B2 (ja) * 1996-08-23 2000-12-25 日本電気株式会社 自動利得制御回路
US6137533A (en) * 1997-05-14 2000-10-24 Cirrus Logic, Inc. System and method for enhancing dynamic range in images
JPH1127068A (ja) * 1997-06-30 1999-01-29 Nec Ic Microcomput Syst Ltd 利得制御増幅器及びその制御方法
US6141169A (en) * 1997-10-23 2000-10-31 Cirrus Logic, Inc. System and method for control of low frequency input levels to an amplifier and compensation of input offsets of the amplifier
US6069866A (en) * 1997-10-23 2000-05-30 Cirrus Logic, Inc. System and method for coarse gain control of wide band amplifiers
DE69942964D1 (de) * 1998-02-19 2011-01-05 Nippon Telegraph & Telephone Verstärker zur radioübertragung
US6011437A (en) * 1998-05-04 2000-01-04 Marvell Technology Group, Ltd. High precision, high bandwidth variable gain amplifier and method
ES2364630T3 (es) * 2001-02-16 2011-09-08 Qualcomm Incorporated Arquitectura de receptor de conversión directa.
US7076225B2 (en) * 2001-02-16 2006-07-11 Qualcomm Incorporated Variable gain selection in direct conversion receiver
US6577185B1 (en) * 2001-03-19 2003-06-10 Cisco Systems Wireless Networking (Australia) Pty. Limited Multi-stage operational amplifier for interstage amplification in a pipeline analog-to-digital converter
US6959055B2 (en) * 2002-07-26 2005-10-25 Thomson Licensing Multi-stage automatic gain control for spread-spectrum receivers
US7085334B2 (en) * 2002-09-30 2006-08-01 Lsi Logic Corporation Automatic gain control with analog and digital gain
US7206030B2 (en) * 2003-01-30 2007-04-17 Texas Instruments Incorporated Fast-convergence two-stage automatic gain control (AGC)
US7443455B2 (en) * 2003-12-30 2008-10-28 Texas Instruments Incorporated Automatic gain control based on multiple input references in a video decoder
US7222037B2 (en) * 2004-10-15 2007-05-22 Genesis Microchip Inc. Hybrid automatic gain control (AGC)
DE102006005032B4 (de) * 2006-02-03 2018-06-28 Intel Deutschland Gmbh Empfangsverfahren mit digitaler Pegeleinstellung im Analogteil und stufenweiser Pegelveränderung im Digitalteil
WO2010129038A1 (fr) 2009-05-04 2010-11-11 Maxlinear, Inc. Système de commande de gain à étalonnage automatique
CN102457239B (zh) * 2010-11-02 2014-06-04 安凯(广州)微电子技术有限公司 一种增益控制系统及方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3525948A (en) * 1966-03-25 1970-08-25 Sds Data Systems Inc Seismic amplifiers
FR2208246A1 (fr) * 1972-11-27 1974-06-21 Petty Ray Geophysical Inc
US3931584A (en) * 1974-09-12 1976-01-06 Hycom Incorporated Automatic gain control
US3983381A (en) * 1974-12-18 1976-09-28 International Business Machines Corporation Digital automatic gain control circuit
US4052598A (en) * 1976-05-03 1977-10-04 Hycom Incorporated Control system with fast response

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1466163A1 (de) * 1964-05-21 1969-05-29 Marconi Co Ltd Selbsttaetig abgestimmte Hochfrequenzschaltung mit einer Anordnung zur selbsttaetigen Verstaerkungsregelung
US3969683A (en) * 1975-04-21 1976-07-13 Bell Telephone Laboratories, Incorporated Automatic level control circuit

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3525948A (en) * 1966-03-25 1970-08-25 Sds Data Systems Inc Seismic amplifiers
FR2208246A1 (fr) * 1972-11-27 1974-06-21 Petty Ray Geophysical Inc
US3931584A (en) * 1974-09-12 1976-01-06 Hycom Incorporated Automatic gain control
US3983381A (en) * 1974-12-18 1976-09-28 International Business Machines Corporation Digital automatic gain control circuit
US4052598A (en) * 1976-05-03 1977-10-04 Hycom Incorporated Control system with fast response

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0025607A2 (fr) * 1979-09-18 1981-03-25 CSELT Centro Studi e Laboratori Telecomunicazioni S.p.A. Procédé et circuit de réglage automatique de gain dans des installations électroniques
EP0025607A3 (en) * 1979-09-18 1981-12-30 Cselt Centro Studi E Laboratori Telecomunicazioni S.P.A. Method of and circuit for automatic gain control in electronic equipments
EP0069515A2 (fr) * 1981-06-30 1983-01-12 Fujitsu Limited Circuit numérique de commande automatique de gain
EP0069515A3 (en) * 1981-06-30 1984-03-07 Fujitsu Limited A digital automatic gain control circuit
EP0213224A1 (fr) * 1985-08-28 1987-03-11 International Business Machines Corporation Méthode pour l'acquisition rapide du gain dans un récepteur modem
EP0410629A2 (fr) * 1989-07-26 1991-01-30 Nortel Networks Corporation Commande automatique d'un paramètre d'un signal
EP0410629A3 (en) * 1989-07-26 1991-09-25 Stc Plc Automatic signal parameter control
US5115207A (en) * 1989-07-26 1992-05-19 Stc Plc Automatic signal parameter control

Also Published As

Publication number Publication date
GB2035732B (en) 1982-11-10
DE2942106C2 (fr) 1989-08-10
DE2942106A1 (de) 1980-05-08
SE7908627L (sv) 1980-06-05
US4213097A (en) 1980-07-15
JPS5597714A (en) 1980-07-25
GB2035732A (en) 1980-06-18
FR2439506B1 (fr) 1983-08-19
CA1138058A (fr) 1982-12-21
JPH0454405B2 (fr) 1992-08-31
CH650884A5 (de) 1985-08-15
SE438223B (sv) 1985-04-01
BE879540A (fr) 1980-02-15

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Legal Events

Date Code Title Description
ST Notification of lapse