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BR9706220A - Processo e aparelho utilizando uma fonte de sinal de saída múltipla compensada - Google Patents

Processo e aparelho utilizando uma fonte de sinal de saída múltipla compensada

Info

Publication number
BR9706220A
BR9706220A BR9706220A BR9706220A BR9706220A BR 9706220 A BR9706220 A BR 9706220A BR 9706220 A BR9706220 A BR 9706220A BR 9706220 A BR9706220 A BR 9706220A BR 9706220 A BR9706220 A BR 9706220A
Authority
BR
Brazil
Prior art keywords
output signal
signal source
multiple output
compensated multiple
compensated
Prior art date
Application number
BR9706220A
Other languages
English (en)
Other versions
BR9706220B1 (pt
Inventor
Robert E Stengel
Scott A Olson
Original Assignee
Motorola 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 Motorola Inc filed Critical Motorola Inc
Publication of BR9706220A publication Critical patent/BR9706220A/pt
Publication of BR9706220B1 publication Critical patent/BR9706220B1/pt

Links

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
    • H03F1/02—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
    • H03F1/0205—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers
    • H03F1/0294—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers using vector summing of two or more constant amplitude phase-modulated signals
    • 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
    • H03F1/3247—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits using feedback acting on predistortion circuits
    • 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
    • H03F1/3294—Acting on the real and imaginary components of the input signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/36—Modulator circuits; Transmitter circuits
    • H04L27/366—Arrangements for compensating undesirable properties of the transmission path between the modulator and the demodulator
    • H04L27/367—Arrangements for compensating undesirable properties of the transmission path between the modulator and the demodulator using predistortion
    • 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
    • H03F2201/3233—Adaptive predistortion using lookup table, e.g. memory, RAM, ROM, LUT, to generate the predistortion

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Amplifiers (AREA)
BRPI9706220-0B1A 1996-12-11 1997-12-04 processo e aparelho utilizando uma fonte de sinal de saÍda méltipla compensada. BR9706220B1 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US76441196A 1996-12-11 1996-12-11
US08/773,798 US5901346A (en) 1996-12-11 1996-12-17 Method and apparatus utilizing a compensated multiple output signal source

Publications (2)

Publication Number Publication Date
BR9706220A true BR9706220A (pt) 1999-03-30
BR9706220B1 BR9706220B1 (pt) 2013-07-30

Family

ID=27117459

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI9706220-0B1A BR9706220B1 (pt) 1996-12-11 1997-12-04 processo e aparelho utilizando uma fonte de sinal de saÍda méltipla compensada.

Country Status (5)

Country Link
US (1) US5901346A (pt)
KR (1) KR100545964B1 (pt)
CN (1) CN1108660C (pt)
BR (1) BR9706220B1 (pt)
GB (1) GB2320381B (pt)

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Also Published As

Publication number Publication date
GB2320381B (en) 1999-02-10
KR100545964B1 (ko) 2006-03-23
KR19980063988A (ko) 1998-10-07
GB2320381A (en) 1998-06-17
CN1108660C (zh) 2003-05-14
US5901346A (en) 1999-05-04
GB9723473D0 (en) 1998-01-07
CN1190286A (zh) 1998-08-12
BR9706220B1 (pt) 2013-07-30

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Legal Events

Date Code Title Description
B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B09B Patent application refused [chapter 9.2 patent gazette]

Free format text: INDEFERIDO COM BASE NO ART. 8O COMBINADO COM O ART. 13 DA LPI.

B06G Technical and formal requirements: other requirements [chapter 6.7 patent gazette]

Free format text: A DEPOSITANTE. DESPACHO: CUMPRIR A EXIGENCIA FORMULADA NO PRAZO DE 60 (SESSENTA) DIAS CONTADO DESSA NOTIFICACAO. A FOTOCOPIA DO TEXTO DO DESPACHO DE EXIGENCIA PODERA SER SOLICITADA ATRAVES DO FORMULARIO MODELO 1.05.

B15V Prolongation of time limit allowed

Free format text: REQUERENTE DA DEVOLUCAO DE PRAZO: MOTOROLA INC. DESPACHO: CONCEDIDA A DEVOLUCAO DE PRAZO DE 30 (TRINTA) DIAS, A PARTIR DESTA NOTIFICACAO.

B12B Appeal against refusal [chapter 12.2 patent gazette]
B25D Requested change of name of applicant approved

Owner name: MOTOROLA SOLUTIONS, INC. (US)

B25A Requested transfer of rights approved

Owner name: MOTOROLA MOBILITY, INC. (US)

B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 30/07/2013, OBSERVADAS AS CONDICOES LEGAIS.

B25G Requested change of headquarter approved
B25E Requested change of name of applicant rejected

Free format text: INDEFERIDA A ALTERACAO DE NOME SOLICITADA ATRAVES DA PETICAO NO 020130025942-RJ, DE 28/03/2013, UMA VEZ QUE NAO FOI PAGA A RESPECTIVA TAXA DE RETRIBUICAO.

B25D Requested change of name of applicant approved
B21F Lapse acc. art. 78, item iv - on non-payment of the annual fees in time

Free format text: REFERENTE A 19A ANUIDADE.

B24J Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12)
B25B Requested transfer of rights rejected