BR9205617A - Aparelho e processo de traduçao de frequencia - Google Patents

Aparelho e processo de traduçao de frequencia

Info

Publication number
BR9205617A
BR9205617A BR9205617A BR9205617A BR9205617A BR 9205617 A BR9205617 A BR 9205617A BR 9205617 A BR9205617 A BR 9205617A BR 9205617 A BR9205617 A BR 9205617A BR 9205617 A BR9205617 A BR 9205617A
Authority
BR
Brazil
Prior art keywords
translation device
frequency translation
frequency
translation
Prior art date
Application number
BR9205617A
Other languages
English (en)
Inventor
Christopher P Larosa
Michael J Carney
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 BR9205617A publication Critical patent/BR9205617A/pt

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/22—Demodulator circuits; Receiver circuits
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D13/00—Circuits for comparing the phase or frequency of two mutually-independent oscillations
    • H03D13/001—Circuits for comparing the phase or frequency of two mutually-independent oscillations in which a pulse counter is used followed by a conversion into an analog signal
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D2200/00—Indexing scheme relating to details of demodulation or transference of modulation from one carrier to another covered by H03D
    • H03D2200/0041—Functional aspects of demodulators
    • H03D2200/005—Analog to digital conversion
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D2200/00—Indexing scheme relating to details of demodulation or transference of modulation from one carrier to another covered by H03D
    • H03D2200/0041—Functional aspects of demodulators
    • H03D2200/006—Signal sampling
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D2200/00—Indexing scheme relating to details of demodulation or transference of modulation from one carrier to another covered by H03D
    • H03D2200/0041—Functional aspects of demodulators
    • H03D2200/0066—Mixing
    • H03D2200/007—Mixing by using a logic circuit, e.g. flipflop, XOR

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Manipulation Of Pulses (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Superheterodyne Receivers (AREA)
  • Measuring Frequencies, Analyzing Spectra (AREA)
  • Measuring Phase Differences (AREA)
BR9205617A 1991-12-13 1992-09-21 Aparelho e processo de traduçao de frequencia BR9205617A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/806,511 US5289505A (en) 1991-12-13 1991-12-13 Frequency translation apparatus and method
PCT/US1992/008057 WO1993012603A1 (en) 1991-12-13 1992-09-21 Frequency translation apparatus and method

Publications (1)

Publication Number Publication Date
BR9205617A true BR9205617A (pt) 1994-05-03

Family

ID=25194207

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9205617A BR9205617A (pt) 1991-12-13 1992-09-21 Aparelho e processo de traduçao de frequencia

Country Status (9)

Country Link
US (1) US5289505A (pt)
JP (1) JP2926986B2 (pt)
KR (1) KR960007812B1 (pt)
BR (1) BR9205617A (pt)
CA (1) CA2101527C (pt)
GB (1) GB2269078B (pt)
MX (1) MX9207217A (pt)
UA (1) UA32527C2 (pt)
WO (1) WO1993012603A1 (pt)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5461643A (en) * 1993-04-08 1995-10-24 Motorola Direct phase digitizing apparatus and method
US5436589A (en) * 1994-01-31 1995-07-25 Motorola, Inc. Demodulator for frequency shift keyed signals
US5661433A (en) * 1996-06-27 1997-08-26 Motorola, Inc. Digital FM demodulator
US6148050A (en) * 1997-12-01 2000-11-14 Ericsson Inc Phase digitizer for radio communications
US6112071A (en) * 1998-02-23 2000-08-29 Tropian, Inc. Quadrature-free RF receiver for directly receiving angle modulated signal
US6957056B2 (en) * 2002-03-28 2005-10-18 Motorola, Inc. Receiver and method for determining an intermediate frequency in a wireless communication device
US7729726B2 (en) 2004-03-26 2010-06-01 Nortel Networks Limited Feeder cable reduction
US8135086B1 (en) 2004-08-09 2012-03-13 Rockstar Bidco, LP Cable reduction
US8452333B2 (en) * 2005-12-12 2013-05-28 Apple Inc. Feeder cable reduction
US9025969B2 (en) * 2012-05-24 2015-05-05 Futurewei Technologies, Inc. Method with improved phase robustness in coherent detected optical system

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1986003356A1 (en) * 1984-11-22 1986-06-05 Devon County Council Data modem system
US5001724A (en) * 1989-01-13 1991-03-19 Hewlett-Packard Company Method and apparatus for measuring phase accuracy and amplitude profile of a continuous-phase-modulated signal
US4922206A (en) * 1989-06-28 1990-05-01 Rockwell International Corporation Method of demodulation using split delay line
JPH082060B2 (ja) * 1989-09-13 1996-01-10 日本電気株式会社 搬送波再生方式およびディジタル位相復調装置
US5067139A (en) * 1990-12-17 1991-11-19 Motorola, Inc. Coherent detector for QPSK modulation in a TDMA system
US5058136A (en) * 1990-12-17 1991-10-15 Motorola, Inc. Coherent detection for QPSK modulation

Also Published As

Publication number Publication date
GB2269078B (en) 1995-04-12
JP2926986B2 (ja) 1999-07-28
KR930703771A (ko) 1993-11-30
KR960007812B1 (ko) 1996-06-12
UA32527C2 (uk) 2001-02-15
US5289505A (en) 1994-02-22
MX9207217A (es) 1993-06-01
CA2101527C (en) 1998-08-11
JPH06505615A (ja) 1994-06-23
GB2269078A (en) 1994-01-26
GB9314677D0 (en) 1993-10-20
WO1993012603A1 (en) 1993-06-24
CA2101527A1 (en) 1993-06-14

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Legal Events

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B24C Patent annual fee: request for for restoration

Free format text: REFERENTE A 13A,14A,15A,16A,17A E 18A ANUIDADES

B24H Lapse because of non-payment of annual fees (definitively: art 78 iv lpi)
B24F Patent annual fee: publication cancelled

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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 2606 DE 15-12-2020 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.