BR9905875A - Desmodulador de chaveamento de deslocamento de fase e método de desmodulação utilizando uma técnica de enquadramento de largura de perìodo - Google Patents

Desmodulador de chaveamento de deslocamento de fase e método de desmodulação utilizando uma técnica de enquadramento de largura de perìodo

Info

Publication number
BR9905875A
BR9905875A BR9905875-8A BR9905875A BR9905875A BR 9905875 A BR9905875 A BR 9905875A BR 9905875 A BR9905875 A BR 9905875A BR 9905875 A BR9905875 A BR 9905875A
Authority
BR
Brazil
Prior art keywords
period
demodulator
signal
phase shift
synchronizer
Prior art date
Application number
BR9905875-8A
Other languages
English (en)
Inventor
Robert Everest Johnson
George O Vella-Coleiro
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 BR9905875A publication Critical patent/BR9905875A/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
    • 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
    • H04L27/233—Demodulator circuits; Receiver circuits using non-coherent demodulation
    • H04L27/2335—Demodulator circuits; Receiver circuits using non-coherent demodulation using temporal properties of the received signal
    • H04L27/2337—Demodulator circuits; Receiver circuits using non-coherent demodulation using temporal properties of the received signal using digital techniques to measure the time between zero-crossings

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)

Abstract

<B>DESMODULADOR DE CHAVEAMENTO DE DESLOCAMENTO DE FASE E MéTODO DE DESMODULAçãO UTILIZANDO UMA TéCNICA DE ENQUADRAMENTO DE LARGURA DE PERìODO<D> Um desmodulador desmodula um sinal de comunicação PSK usando um sincronizador, um detector de janela de período e um dispositivo lógico. O sincronizador proporciona um sinal de transição que representa bordas de referência do sinal de comunicação. O detector de janela de período, acoplado ao sincronizador, estabelece um intervalo de tempo com base no período do sinal de transição. Finalmente, o dispositivo lógico, com entradas lógicas acopladas às saídas do detector de janela de período, produz um sinal de saída lógico. O desmodulador inclui preferivelmente um detector de limite de portadora para enquadrar mensagens e minimizar a detecção de ruído de uma maneira que permite medições de intensidade de sinal ao longo de uma ampla faixa dinâmica.
BR9905875-8A 1998-10-29 1999-10-22 Desmodulador de chaveamento de deslocamento de fase e método de desmodulação utilizando uma técnica de enquadramento de largura de perìodo BR9905875A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/181,810 US6341146B1 (en) 1998-10-29 1998-10-29 Phase-shift-keying demodulator and demodulation method using a period-width windowing technique

Publications (1)

Publication Number Publication Date
BR9905875A true BR9905875A (pt) 2000-09-05

Family

ID=22665904

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9905875-8A BR9905875A (pt) 1998-10-29 1999-10-22 Desmodulador de chaveamento de deslocamento de fase e método de desmodulação utilizando uma técnica de enquadramento de largura de perìodo

Country Status (9)

Country Link
US (1) US6341146B1 (pt)
EP (1) EP0998084B1 (pt)
JP (1) JP3659476B2 (pt)
KR (1) KR20000047572A (pt)
CN (1) CN1253443A (pt)
AU (1) AU5597999A (pt)
BR (1) BR9905875A (pt)
CA (1) CA2284138A1 (pt)
DE (1) DE69935055T2 (pt)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001267897A (ja) * 2000-03-17 2001-09-28 Oki Electric Ind Co Ltd 遅延装置および方法
AU2003231682B2 (en) * 2003-08-08 2009-04-23 Poseidon Scientific Instruments Pty Ltd A Signal Analysis Instrument, And a Module For A Signal Analysis Instrument
US6944565B2 (en) * 2003-08-08 2005-09-13 Poseidon Scientific Instruments Pty Ltd Signal analysis instrument, and a module for a signal analysis instrument
KR100976625B1 (ko) * 2008-10-15 2010-08-18 한국전자통신연구원 타임투디지털컨버터를 이용한 위상 편이 복조기
TWI413384B (zh) * 2008-10-28 2013-10-21 Univ Nat Central Low complexity and low power consumption of the keyed phase shifter system
WO2010070459A1 (en) * 2008-12-16 2010-06-24 Acceleradio Ltd. System and method for operating a relay device
US7911266B2 (en) * 2009-01-19 2011-03-22 National Central University Low complexity and low power phase shift keying demodulator structure
CN101692662A (zh) * 2009-09-03 2010-04-07 中国石油大学(华东) 一种相位调制方法、设备以及系统
WO2011119971A1 (en) * 2010-03-25 2011-09-29 Custom Link Corporation Apparatus and method for carrier state modulation
KR102298160B1 (ko) * 2015-08-13 2021-09-03 삼성전자주식회사 반도체 장치 및 이를 포함하는 통신 시스템
JP6716485B2 (ja) * 2017-03-24 2020-07-01 日立オートモティブシステムズ株式会社 回転角度検出装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2771354B2 (ja) * 1991-08-26 1998-07-02 日本電気株式会社 復調器
EP0576826B1 (en) * 1992-05-29 2001-02-28 Sony Corporation A demodulator for a phase shift keying (PSK) signal
US5757868A (en) * 1994-02-16 1998-05-26 Motorola, Inc. Digital phase detector with integrated phase detection
US5533069A (en) * 1994-10-26 1996-07-02 International Business Machines Corporation Method and apparatus for digital frequency compensation of carrier drift in a PSK demodulator

Also Published As

Publication number Publication date
EP0998084A3 (en) 2003-10-08
CN1253443A (zh) 2000-05-17
AU5597999A (en) 2000-05-04
JP3659476B2 (ja) 2005-06-15
US6341146B1 (en) 2002-01-22
CA2284138A1 (en) 2000-04-29
KR20000047572A (ko) 2000-07-25
JP2000151733A (ja) 2000-05-30
DE69935055D1 (de) 2007-03-22
EP0998084A2 (en) 2000-05-03
EP0998084B1 (en) 2007-02-07
DE69935055T2 (de) 2007-07-19

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Legal Events

Date Code Title Description
FA10 Dismissal: dismissal - article 33 of industrial property law
B11Y Definitive dismissal - extension of time limit for request of examination expired [chapter 11.1.1 patent gazette]