BR9903411A - Sistema de controle e método para cancelar a distorção produzida por circuitos elétricos. - Google Patents

Sistema de controle e método para cancelar a distorção produzida por circuitos elétricos.

Info

Publication number
BR9903411A
BR9903411A BR9903411-5A BR9903411A BR9903411A BR 9903411 A BR9903411 A BR 9903411A BR 9903411 A BR9903411 A BR 9903411A BR 9903411 A BR9903411 A BR 9903411A
Authority
BR
Brazil
Prior art keywords
control system
cancel
electrical circuits
distortion
distortion produced
Prior art date
Application number
BR9903411-5A
Other languages
English (en)
Inventor
Robert Evan Myer
Original Assignee
Lucent Technologies 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 Lucent Technologies Inc filed Critical Lucent Technologies Inc
Publication of BR9903411A publication Critical patent/BR9903411A/pt

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Nonlinear Science (AREA)
  • Power Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Amplifiers (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Noise Elimination (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Tests Of Electronic Circuits (AREA)

Abstract

<B>SISTEMA DE CONTROLE E MéTODO PARA CANCELAR A DISTORçãO PRODUZIDA POR CIRCUITOS ELéTRICOS<D> Circuito de detecção sincrónica piloto (Figs. 3 e 4) acoplado a um sistema de controle que compreende um circuito elétrico que produz distorção de tal modo que, quando um sinal piloto é aplicado ao circuito elétrico, a distorção e qualquer distorção residual são canceladas substancialmente.
BR9903411-5A 1998-08-12 1999-08-04 Sistema de controle e método para cancelar a distorção produzida por circuitos elétricos. BR9903411A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US13305498A 1998-08-12 1998-08-12

Publications (1)

Publication Number Publication Date
BR9903411A true BR9903411A (pt) 2000-08-22

Family

ID=22456805

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9903411-5A BR9903411A (pt) 1998-08-12 1999-08-04 Sistema de controle e método para cancelar a distorção produzida por circuitos elétricos.

Country Status (7)

Country Link
EP (1) EP0980137A1 (pt)
JP (1) JP2000068900A (pt)
KR (1) KR20000022705A (pt)
CN (1) CN1250897A (pt)
AU (1) AU4340999A (pt)
BR (1) BR9903411A (pt)
CA (1) CA2275910A1 (pt)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100377915B1 (ko) * 2000-10-06 2003-03-29 주식회사 하이닉스반도체 알에프 트랜시버에서의 주파수 혼합장치
WO2015081573A1 (zh) * 2013-12-06 2015-06-11 华为技术有限公司 一种信号转换的方法及装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5307022A (en) * 1991-04-15 1994-04-26 Motorola, Inc. High dynamic range modulation independent feed forward amplifier network
US5477187A (en) * 1992-03-19 1995-12-19 Fujitsu Limited Feed forward amplifier
US5565814A (en) * 1994-12-21 1996-10-15 Nec Corporation Feedforward amplifier using frequency changeable pilot signal
US5796304A (en) * 1996-04-24 1998-08-18 Powerwave Technologies, Inc. Broadband amplifier with quadrature pilot signal

Also Published As

Publication number Publication date
EP0980137A1 (en) 2000-02-16
KR20000022705A (ko) 2000-04-25
CA2275910A1 (en) 2000-02-12
CN1250897A (zh) 2000-04-19
JP2000068900A (ja) 2000-03-03
AU4340999A (en) 2000-03-09

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Legal Events

Date Code Title Description
FA10 Dismissal: dismissal - article 33 of industrial property law
B11Y Definitive dismissal acc. article 33 of ipl - extension of time limit for request of examination expired