MXPA04001433A - Aparato y metodo para controlar circuitos adaptativos . - Google Patents

Aparato y metodo para controlar circuitos adaptativos .

Info

Publication number
MXPA04001433A
MXPA04001433A MXPA04001433A MXPA04001433A MXPA04001433A MX PA04001433 A MXPA04001433 A MX PA04001433A MX PA04001433 A MXPA04001433 A MX PA04001433A MX PA04001433 A MXPA04001433 A MX PA04001433A MX PA04001433 A MXPA04001433 A MX PA04001433A
Authority
MX
Mexico
Prior art keywords
signal
gain
controllers
values
tap steering
Prior art date
Application number
MXPA04001433A
Other languages
English (en)
Inventor
R Blodgett James
Original Assignee
Soma Networks 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 Soma Networks Inc filed Critical Soma Networks Inc
Publication of MXPA04001433A publication Critical patent/MXPA04001433A/es

Links

Classifications

    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03FAMPLIFIERS
    • H03F1/00Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/32Modifications of amplifiers to reduce non-linear distortion
    • H03F1/3223Modifications of amplifiers to reduce non-linear distortion using feed-forward
    • H03F1/3229Modifications of amplifiers to reduce non-linear distortion using feed-forward using a loop for error extraction and another loop for error subtraction
    • H03F1/3235Modifications of amplifiers to reduce non-linear distortion using feed-forward using a loop for error extraction and another loop for error subtraction using a pilot signal
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03FAMPLIFIERS
    • H03F2201/00Indexing scheme relating to details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements covered by H03F1/00
    • H03F2201/32Indexing scheme relating to modifications of amplifiers to reduce non-linear distortion
    • H03F2201/3212Using a control circuit to adjust amplitude and phase of a signal in a signal path

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Feedback Control In General (AREA)
  • Control Of Amplification And Gain Control (AREA)

Abstract

Un amplificador de alimentacion de avance que tiene un bucle de cancelacion de senal que incluye un nodo de cancelacion que incluye un controlador de ganancia y un controlador de fase. Cada controlador proporciona una senal de direccion de derivacion discreta y modula la senal de direccion de derivacion correspondiente con una senal de rastreo discreta que toma una secuencia preseleccionada de valores. La secuencia elegida de manera que la senal de rastreo es mutuamente ortogonal a otra senal de rastreo durante un periodo preseleccionado, Un ajustador de ganancia y fase conectado a las salidas de los controladores proporciona un cambio de ganancia controlado y desplazamiento de fase en el bucle de cancelacion de senal, la magnitud del cambio de ganancia y desplazamiento de fase controlada a traves de las senales de direccion de derivacion correspondientes presentadas al ajustador de ganancia y fase a traves de los controladores. Un detector, la entrada del cual esta conectada al nodo de cancelacion y la salida del cual esta conectada a los controladores, produce una medida de la envoltura de la senal en el nodo de cancelacion. Despues del periodo preseleccionado, se obtienen nuevos valores para las senales de direccion de derivacion presentados al ajustador de ganancia y fase a traves de los controladores multiplicando la salida del detector por la senal de rastreo respectiva, cada una durante el periodo preseleccionado respectivo, sumando cada serie resultante de valores, y cambiando las senales de direccion de derivacion que seran moduladas y presentadas al ajustador de ganancia y fase de acuerdo con los valores de las sumas respectivas.
MXPA04001433A 2001-08-13 2002-08-12 Aparato y metodo para controlar circuitos adaptativos . MXPA04001433A (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US31135801P 2001-08-13 2001-08-13
US10/016,691 US6614298B2 (en) 2001-08-13 2001-12-17 Apparatus and method for controlling adaptive circuits
PCT/US2002/025557 WO2003017553A2 (en) 2001-08-13 2002-08-12 Apparatus and method for controlling adaptive circuits

Publications (1)

Publication Number Publication Date
MXPA04001433A true MXPA04001433A (es) 2005-10-05

Family

ID=26688951

Family Applications (1)

Application Number Title Priority Date Filing Date
MXPA04001433A MXPA04001433A (es) 2001-08-13 2002-08-12 Aparato y metodo para controlar circuitos adaptativos .

Country Status (7)

Country Link
US (3) US6614298B2 (es)
EP (1) EP1476942A4 (es)
JP (1) JP4148892B2 (es)
AU (1) AU2002323115B2 (es)
CA (1) CA2495113A1 (es)
MX (1) MXPA04001433A (es)
WO (1) WO2003017553A2 (es)

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US6614298B2 (en) 2001-08-13 2003-09-02 Soma Networks, Inc. Apparatus and method for controlling adaptive circuits
US6771125B2 (en) * 2002-03-01 2004-08-03 Andrew Corporation Tuning feed-forward amplifiers and the like
US7110739B2 (en) * 2003-04-10 2006-09-19 Powerwave Technologies, Inc. Multi-transmitter communication system employing anti-phase pilot signals
US7656931B2 (en) * 2003-12-31 2010-02-02 Ut-Battelle, Llc Hybrid spread spectrum radio system
US7038541B2 (en) * 2004-05-28 2006-05-02 Andrew Corporation Adaptive feed-forward amplifiers and the like
KR101158153B1 (ko) * 2004-09-09 2012-06-19 에이저 시스템즈 인크 다중 안테나 통신 시스템에서의 데이터 전송 방법, 다중 안테나 통신 시스템의 송신기, 다중 안테나 통신 시스템에서의 데이터 수신 방법 및 다중 안테나 통신 시스템의 수신기
EP2225840A1 (en) 2007-12-18 2010-09-08 Thomson Licensing Apparatus and method for file size estimation over broadcast networks
US8258800B2 (en) * 2008-02-11 2012-09-04 Qualcomm Mems Technologies, Inc. Methods for measurement and characterization of interferometric modulators
CN101946277B (zh) * 2008-02-11 2014-09-03 高通Mems科技公司 与显示驱动方案集成的显示元件感测、测量或表征的方法及设备以及使用所述方法及设备的系统及应用
WO2009134501A2 (en) * 2008-02-11 2009-11-05 Qualcomm Mems Technologies, Inc. Methods for measurement and characterization of interferometric modulators
US20090201282A1 (en) * 2008-02-11 2009-08-13 Qualcomm Mems Technologies, Inc Methods of tuning interferometric modulator displays
US8466858B2 (en) * 2008-02-11 2013-06-18 Qualcomm Mems Technologies, Inc. Sensing to determine pixel state in a passively addressed display array
US9331513B2 (en) * 2008-04-11 2016-05-03 Apple Inc. Adaptive surface concentration battery charging
US9813029B2 (en) 2015-06-30 2017-11-07 Skyworks Solutions, Inc. Differential amplifier linearization in a radio frequency system
US9899966B2 (en) * 2016-06-16 2018-02-20 Bae Systems Information And Electronic Systems Integration Inc. Wideband high dynamic range low noise amplifier
US11997363B2 (en) * 2021-04-14 2024-05-28 Charter Communications Operating, Llc Regenerative active distributed networks
US11917260B2 (en) 2022-03-15 2024-02-27 Charter Communications Operating, Llc Transparent clock functionality in regenerative taps

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US1231234A (en) * 1916-05-18 1917-06-26 Ogle Construction Company Hoist mechanism.
US3471798A (en) 1967-12-26 1969-10-07 Bell Telephone Labor Inc Feed-forward amplifier
US3649927A (en) 1970-02-27 1972-03-14 Bell Telephone Labor Inc Feed-fordward amplifier
US5093668A (en) 1989-06-29 1992-03-03 Ball Corporation Multiple-beam array antenna
CA2046413C (en) 1990-07-11 1994-01-04 Shoichi Narahashi Feed-forward amplifier
JPH06154984A (ja) * 1992-11-27 1994-06-03 Hanano Shoji Kk 金型鋳造用粉末塗型剤のスプレー方法
US5576659A (en) * 1992-12-15 1996-11-19 British Technology Group Limited Method and apparatus for signal processing using reference signals
US5386198A (en) * 1993-01-28 1995-01-31 Telefonaktiebolaget L M Ericsson Linear amplifier control
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US5768699A (en) 1995-10-20 1998-06-16 Aml Communications, Inc. Amplifier with detuned test signal cancellation for improved wide-band frequency response
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US6256482B1 (en) * 1997-04-07 2001-07-03 Frederick H. Raab Power- conserving drive-modulation method for envelope-elimination-and-restoration (EER) transmitters
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US6236267B1 (en) * 1998-12-29 2001-05-22 International Business Machines Corporation Linearization for power amplifiers using feed-forward and feedback control
US6340915B1 (en) 2000-11-20 2002-01-22 Soma Networks, Inc. Feed forward amplifier
US6901108B2 (en) 2001-05-04 2005-05-31 Lucent Technologies Inc. Apparatus and method for adaptive control
US6614298B2 (en) 2001-08-13 2003-09-02 Soma Networks, Inc. Apparatus and method for controlling adaptive circuits

Also Published As

Publication number Publication date
CA2495113A1 (en) 2003-02-27
US7218172B2 (en) 2007-05-15
US20070176678A1 (en) 2007-08-02
US6614298B2 (en) 2003-09-02
EP1476942A2 (en) 2004-11-17
US7538632B2 (en) 2009-05-26
US20030034834A1 (en) 2003-02-20
WO2003017553A2 (en) 2003-02-27
WO2003017553A3 (en) 2003-04-03
AU2002323115B2 (en) 2008-11-20
JP2005500738A (ja) 2005-01-06
JP4148892B2 (ja) 2008-09-10
US20050040888A1 (en) 2005-02-24
EP1476942A4 (en) 2005-01-05

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