ES2188790T3 - Control digital linealizado para control automatico de ganancia. - Google Patents

Control digital linealizado para control automatico de ganancia.

Info

Publication number
ES2188790T3
ES2188790T3 ES96933039T ES96933039T ES2188790T3 ES 2188790 T3 ES2188790 T3 ES 2188790T3 ES 96933039 T ES96933039 T ES 96933039T ES 96933039 T ES96933039 T ES 96933039T ES 2188790 T3 ES2188790 T3 ES 2188790T3
Authority
ES
Spain
Prior art keywords
digital
agc
signal
transmission
reception
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
ES96933039T
Other languages
English (en)
Other versions
ES2188790T5 (es
Inventor
Nathaniel B Wilson
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.)
Qualcomm Inc
Original Assignee
Qualcomm 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=24107973&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ES2188790(T3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Qualcomm Inc filed Critical Qualcomm Inc
Application granted granted Critical
Publication of ES2188790T3 publication Critical patent/ES2188790T3/es
Publication of ES2188790T5 publication Critical patent/ES2188790T5/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/3036—Automatic control in amplifiers having semiconductor devices in high-frequency amplifiers or in frequency-changers
    • H03G3/3042—Automatic control in amplifiers having semiconductor devices in high-frequency amplifiers or in frequency-changers in modulators, frequency-changers, transmitters or power amplifiers
    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/32—Modifications of amplifiers to reduce non-linear distortion
    • H03F1/3241—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/294—Indexing scheme relating to amplifiers the amplifier being a low noise amplifier [LNA]
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/372—Noise reduction and elimination in amplifier

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Amplification And Gain Control (AREA)
  • Massaging Devices (AREA)
  • Transmitters (AREA)

Abstract

EL PRESENTE INVENTO PROPORCIONA CONTROL DE GANANCIA AUTOMATICO DIGITAL LINEAL (AGC) EN UNA RADIO. SE DEMODULA UNA SEÑAL RECIBIDA PARA PROPORCIONAR SEÑALES DE BANDA BASE DIGITALES I Y Q. A PARTIR DE ESTAS SEÑALES SE DETERMINA UNA INDICACION DE INTENSIDAD DE SEÑAL RECIBIDA Y LA SEÑAL DIGITAL RESULTANTE SE AJUSTA PARA PROPORCIONAR UNA RESPUESTA LOGARITMICA (205). ESTA SEÑAL SE INTEGRA ENTONCES (210) PARA PROPORCIONAR UNA SEÑAL DE AJUSTE AGC DE RECEPCION DIGITAL. PARA EL AJUSTE AGC DE TRANSMISION, SE FILTRA LA SEÑAL DE AJUSTE AGC DE RECEPCION DIGITAL (215) Y DESPUES SE SUMA (270) CON UN COMANDO DE CONTROL DE ENERGIA DE BUCLE CERRADO (265) ESCALADO (260). LOS COMANDOS DE CONTROL DE ENERGIA DE BUCLE CERRADO (265) SE IGNORAN (220) SI DAN COMO RESULTADO UN AUMENTO DE LA GANANCIA DE TRANSMISION MAS ALLA DE LA SALIDA MAXIMA DESIGNADA DEL AMPLIFICADOR. LAS SALIDAS DE LOS AMPLIFICADORES AGC DE TRANSMISION Y RECEPCION ESTAN LINEALIZADAS MEDIANTE LOS LINEALIZADORES DE TRANSMISION Y RECEPCION (225) Y (240) RESPECTIVAMENTE, LO QUE PREDISTORSIONA LAS SEÑALES DE AJUSTE AGC DIGITALES ANTES DE UNA CONVERSION DE DIGITAL A ANALOGICO (230) Y (245).
ES96933039T 1995-09-15 1996-09-16 Control automatico de ganancia digital linealizado. Expired - Lifetime ES2188790T5 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US528969 1995-09-15
US08/528,969 US5627857A (en) 1995-09-15 1995-09-15 Linearized digital automatic gain control

Publications (2)

Publication Number Publication Date
ES2188790T3 true ES2188790T3 (es) 2003-07-01
ES2188790T5 ES2188790T5 (es) 2006-11-16

Family

ID=24107973

Family Applications (1)

Application Number Title Priority Date Filing Date
ES96933039T Expired - Lifetime ES2188790T5 (es) 1995-09-15 1996-09-16 Control automatico de ganancia digital linealizado.

Country Status (17)

Country Link
US (1) US5627857A (es)
EP (1) EP0850509B9 (es)
KR (1) KR100427838B1 (es)
CN (1) CN1103136C (es)
AT (1) ATE229709T1 (es)
AU (1) AU704530B2 (es)
CA (1) CA2233692C (es)
DE (1) DE69625367T3 (es)
ES (1) ES2188790T5 (es)
FI (1) FI980592A7 (es)
IL (1) IL119239A (es)
MY (1) MY120901A (es)
NZ (1) NZ319397A (es)
RU (1) RU2158474C2 (es)
UA (1) UA48985C2 (es)
WO (1) WO1997010644A1 (es)
ZA (1) ZA967426B (es)

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Also Published As

Publication number Publication date
IL119239A0 (en) 1996-12-05
RU2158474C2 (ru) 2000-10-27
EP0850509B2 (en) 2006-02-15
AU704530B2 (en) 1999-04-29
IL119239A (en) 2004-05-12
UA48985C2 (uk) 2002-09-16
DE69625367T3 (de) 2006-11-02
ZA967426B (en) 1997-03-10
NZ319397A (en) 1998-07-28
US5627857A (en) 1997-05-06
ES2188790T5 (es) 2006-11-16
DE69625367T2 (de) 2003-10-16
DE69625367D1 (de) 2003-01-23
KR20000064243A (ko) 2000-11-06
FI980592A0 (fi) 1998-03-17
CA2233692A1 (en) 1997-03-20
EP0850509B9 (en) 2006-06-21
CN1200848A (zh) 1998-12-02
ATE229709T1 (de) 2002-12-15
KR100427838B1 (ko) 2004-07-27
MY120901A (en) 2005-12-30
EP0850509A1 (en) 1998-07-01
HK1015088A1 (en) 1999-10-08
FI980592A7 (fi) 1998-03-18
EP0850509B1 (en) 2002-12-11
CA2233692C (en) 2007-07-24
CN1103136C (zh) 2003-03-12
AU7160996A (en) 1997-04-01
WO1997010644A1 (en) 1997-03-20

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