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
Links
- 230000003044 adaptive effect Effects 0.000 title 1
- 239000000700 radioactive tracer Substances 0.000 abstract 4
- 230000010363 phase shift Effects 0.000 abstract 2
Classifications
-
- 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
- H03F1/3223—Modifications of amplifiers to reduce non-linear distortion using feed-forward
- H03F1/3229—Modifications of amplifiers to reduce non-linear distortion using feed-forward using a loop for error extraction and another loop for error subtraction
- H03F1/3235—Modifications 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
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2201/00—Indexing scheme relating to details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements covered by H03F1/00
- H03F2201/32—Indexing scheme relating to modifications of amplifiers to reduce non-linear distortion
- H03F2201/3212—Using 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.
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) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
Family Cites Families (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
US5491454A (en) | 1994-10-31 | 1996-02-13 | Motorola, Inc. | Method and apparatus for reducing distortion in an output signal of an amplifier |
US5870668A (en) | 1995-08-18 | 1999-02-09 | Fujitsu Limited | Amplifier having distortion compensation and base station for radio communication using the same |
US5768699A (en) | 1995-10-20 | 1998-06-16 | Aml Communications, Inc. | Amplifier with detuned test signal cancellation for improved wide-band frequency response |
US5796304A (en) | 1996-04-24 | 1998-08-18 | Powerwave Technologies, Inc. | Broadband amplifier with quadrature pilot signal |
DE19650388A1 (de) | 1996-12-05 | 1998-06-18 | Bosch Gmbh Robert | Schaltung zur Linearisierung eines Verstärkers |
US6256482B1 (en) * | 1997-04-07 | 2001-07-03 | Frederick H. Raab | Power- conserving drive-modulation method for envelope-elimination-and-restoration (EER) transmitters |
US5874856A (en) | 1997-06-30 | 1999-02-23 | Motorola, Inc. | Feed forward amplifier |
US5963091A (en) | 1998-04-01 | 1999-10-05 | Chen; Jiunn-Tsair | Article comprising a power amplifier with feed forward linearizer using a RLS parameter tracking algorithm |
US6166600A (en) | 1998-08-31 | 2000-12-26 | Lucent Technologies Inc. | Automatic gain and phase controlled feedforward amplifier without pilot signal |
US5926067A (en) | 1998-09-29 | 1999-07-20 | Lucent Technologies Inc. | Sweep pilot technique for a control system that reduces distortion produced by electrical circuits |
US6208204B1 (en) | 1998-12-14 | 2001-03-27 | Ntt Mobile Communications Network, Inc. | Feedforward amplifier |
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 |
-
2001
- 2001-12-17 US US10/016,691 patent/US6614298B2/en not_active Expired - Lifetime
-
2002
- 2002-08-12 EP EP02757076A patent/EP1476942A4/en not_active Withdrawn
- 2002-08-12 AU AU2002323115A patent/AU2002323115B2/en not_active Ceased
- 2002-08-12 MX MXPA04001433A patent/MXPA04001433A/es active IP Right Grant
- 2002-08-12 US US10/486,792 patent/US7218172B2/en not_active Expired - Fee Related
- 2002-08-12 CA CA002495113A patent/CA2495113A1/en not_active Abandoned
- 2002-08-12 JP JP2003521523A patent/JP4148892B2/ja not_active Expired - Fee Related
- 2002-08-12 WO PCT/US2002/025557 patent/WO2003017553A2/en active Application Filing
-
2007
- 2007-04-11 US US11/734,103 patent/US7538632B2/en not_active Expired - Lifetime
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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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG | Grant or registration | ||
GB | Transfer or rights |