BR0011052A - Multiplicador complexo - Google Patents

Multiplicador complexo

Info

Publication number
BR0011052A
BR0011052A BR0011052-3A BR0011052A BR0011052A BR 0011052 A BR0011052 A BR 0011052A BR 0011052 A BR0011052 A BR 0011052A BR 0011052 A BR0011052 A BR 0011052A
Authority
BR
Brazil
Prior art keywords
signal
vlif
channel spacing
complex multiplier
gain
Prior art date
Application number
BR0011052-3A
Other languages
English (en)
Other versions
BRPI0011052B1 (pt
Inventor
Alex Hietala
Nadim Khlat
Patrick Clement
Christopher Kurby
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 BR0011052A publication Critical patent/BR0011052A/pt
Publication of BRPI0011052B1 publication Critical patent/BRPI0011052B1/pt

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F7/00—Methods or arrangements for processing data by operating upon the order or content of the data handled
    • G06F7/38—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation
    • G06F7/40—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation using contact-making devices, e.g. electromagnetic relay
    • G06F7/44—Multiplying; Dividing
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D3/00—Demodulation of angle-, frequency- or phase- modulated oscillations
    • H03D3/007—Demodulation of angle-, frequency- or phase- modulated oscillations by converting the oscillations into two quadrature related signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Electromagnetism (AREA)
  • Computing Systems (AREA)
  • Computational Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Pure & Applied Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Superheterodyne Receivers (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Circuits Of Receivers In General (AREA)

Abstract

"MULTIPLICADOR COMPLEXO". Um multiplicador complexo, 51, 500, 600 para utilização em um receptor de rádio 20, 30, 5O, 60 para receber um sinal de portadora modulado por um sinal desejado, o sinal de portadora modulado ocupando um de uma pluralidade de canais cujas freq³ências centrais são separadas uma da outra por uma freq³ência fixa referida como o espaçamento de canal, o aparelho incluindo um oscilador local 28 para gerar primeiro e segundo sinais a uma freq³ência que não é um múltiplo integral de metade do espaçamento do canal, em que quando o sinal de portadora recebido é misturado com os primeiro e segundo sinais, um sinal de Freq³ência Intermediária Muito Baixa ( VLIF ) é gerado em que o sinal desejado está centrado ao redor de um VLIF que é ligeiramente maior do que metade do espaçamento do canal. O meio de ajuste de fase e de ganho do multiplicador complexo para equilibrar a fase e o ganho dos componentes I e Q do sinal VLIF antes ou durante sua conversão para baixo para banda base.
BRPI0011052-3A 1999-06-01 2000-06-01 Multiplicador complexo BRPI0011052B1 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP99401319A EP1058378B1 (en) 1999-06-01 1999-06-01 Multiplier for multiplying complex signals
PCT/EP2000/005148 WO2000074230A1 (en) 1999-06-01 2000-06-01 Multiplier for multiplying complex signals

Publications (2)

Publication Number Publication Date
BR0011052A true BR0011052A (pt) 2002-06-11
BRPI0011052B1 BRPI0011052B1 (pt) 2015-06-16

Family

ID=8241991

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0011052-3A BRPI0011052B1 (pt) 1999-06-01 2000-06-01 Multiplicador complexo

Country Status (7)

Country Link
EP (1) EP1058378B1 (pt)
JP (1) JP2003529956A (pt)
KR (1) KR100764522B1 (pt)
AU (1) AU4926900A (pt)
BR (1) BRPI0011052B1 (pt)
DE (1) DE69926611T2 (pt)
WO (1) WO2000074230A1 (pt)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE340432T1 (de) * 2003-12-29 2006-10-15 Freescale Semiconductor Inc Niedrigzwischenfrequenzempfänger
FR2872649B1 (fr) * 2004-07-02 2006-09-29 Eads Telecom Soc Par Actions S Procede et dispositif de melange de signaux radio numeriques
US8036625B1 (en) 2006-07-11 2011-10-11 Marvell International Ltd. Method and apparatus for mixing a signal

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4688096A (en) * 1986-06-25 1987-08-18 Rca Corporation Demodulation phase error compensation circuitry as for an automatic deghosting system
US5999802A (en) * 1993-06-04 1999-12-07 Rca Thomson Licensing Corporation Direct conversion tuner
US5619202A (en) * 1994-11-22 1997-04-08 Analog Devices, Inc. Variable sample rate ADC
US5828955A (en) * 1995-08-30 1998-10-27 Rockwell Semiconductor Systems, Inc. Near direct conversion receiver and method for equalizing amplitude and phase therein
US5802463A (en) * 1996-08-20 1998-09-01 Advanced Micro Devices, Inc. Apparatus and method for receiving a modulated radio frequency signal by converting the radio frequency signal to a very low intermediate frequency signal
US5878089A (en) * 1997-02-21 1999-03-02 Usa Digital Radio Partners, L.P. Coherent signal detector for AM-compatible digital audio broadcast waveform recovery
US5777521A (en) * 1997-08-12 1998-07-07 Motorola Inc. Parallel accumulator fractional-n frequency synthesizer

Also Published As

Publication number Publication date
AU4926900A (en) 2000-12-18
JP2003529956A (ja) 2003-10-07
WO2000074230A1 (en) 2000-12-07
BRPI0011052B1 (pt) 2015-06-16
KR20020035484A (ko) 2002-05-11
DE69926611D1 (de) 2005-09-15
KR100764522B1 (ko) 2007-10-09
DE69926611T2 (de) 2006-06-14
EP1058378B1 (en) 2005-08-10
EP1058378A1 (en) 2000-12-06

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Legal Events

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B25D Requested change of name of applicant approved

Owner name: MOTOROLA SOLUTIONS INC. (US)

Free format text: NOME ALTERADO DE: MOTOROLA, INC

B25A Requested transfer of rights approved

Owner name: MOTOROLA MOBILITY INC (US)

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B25F Entry of change of name and/or headquarter and transfer of application, patent and certif. of addition of invention: change of name on requirement

Owner name: MOTOROLA MOBILITY INC (US)

Free format text: A FIM DE ATENDER AS ALTERACOES DE NOME E ENDERECO REQUERIDAS ATRAVES DA PETICAO NO 20120100470/RJ, DE 24/10/2012, E NECESSARIO APRESENTAR GUIA RELATIVA AO SEGUNDO SERVICO SOLICITADO E O DOCUMENTO DE ALTERACAO DE NOME COM A DEVIDA LEGALIZACAO CONSULAR.

B25D Requested change of name of applicant approved

Owner name: MOTOROLA MOBILITY LLC (US)

B25G Requested change of headquarter approved

Owner name: MOTOROLA MOBILITY LLC (US)

B06A Notification to applicant to reply to the report for non-patentability or inadequacy of the application [chapter 6.1 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted

Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 16/06/2015, OBSERVADAS AS CONDICOES LEGAIS.

B25A Requested transfer of rights approved
B21F Lapse acc. art. 78, item iv - on non-payment of the annual fees in time
B24J Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12)

Free format text: EM VIRTUDE DA EXTINCAO PUBLICADA NA RPI 2465 DE 03-04-2018 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDA A EXTINCAO DA PATENTE E SEUS CERTIFICADOS, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013.