[go: up one dir, main page]

BR9602199A - Aparelho e processo para recuperação de relógio de símbolo e um sinal em fase recebido e um sinal de quadratura recebido - Google Patents

Aparelho e processo para recuperação de relógio de símbolo e um sinal em fase recebido e um sinal de quadratura recebido

Info

Publication number
BR9602199A
BR9602199A BR9602199A BR9602199A BR9602199A BR 9602199 A BR9602199 A BR 9602199A BR 9602199 A BR9602199 A BR 9602199A BR 9602199 A BR9602199 A BR 9602199A BR 9602199 A BR9602199 A BR 9602199A
Authority
BR
Brazil
Prior art keywords
received
signal
symbol clock
phase signal
recovering symbol
Prior art date
Application number
BR9602199A
Other languages
English (en)
Inventor
John W Arens
A Corbett
S Kull
Bradley B Bakke
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 BR9602199A publication Critical patent/BR9602199A/pt

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/0054—Detection of the synchronisation error by features other than the received signal transition
    • H04L7/007—Detection of the synchronisation error by features other than the received signal transition detection of error based on maximum signal power, e.g. peak value, maximizing autocorrelation
    • 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
    • H04L27/227—Demodulator circuits; Receiver circuits using coherent demodulation
    • H04L27/2271—Demodulator circuits; Receiver circuits using coherent demodulation wherein the carrier recovery circuit uses only the demodulated signals
    • H04L27/2273—Demodulator circuits; Receiver circuits using coherent demodulation wherein the carrier recovery circuit uses only the demodulated signals associated with quadrature demodulation, e.g. Costas loop

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
BR9602199A 1995-05-11 1996-05-09 Aparelho e processo para recuperação de relógio de símbolo e um sinal em fase recebido e um sinal de quadratura recebido BR9602199A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/438,721 US5499273A (en) 1995-05-11 1995-05-11 Method and apparatus for symbol clock recovery from signal having wide frequency possibilities

Publications (1)

Publication Number Publication Date
BR9602199A true BR9602199A (pt) 1998-04-07

Family

ID=23741754

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9602199A BR9602199A (pt) 1995-05-11 1996-05-09 Aparelho e processo para recuperação de relógio de símbolo e um sinal em fase recebido e um sinal de quadratura recebido

Country Status (7)

Country Link
US (1) US5499273A (pt)
JP (2) JPH08317009A (pt)
AU (1) AU694851B2 (pt)
BR (1) BR9602199A (pt)
FR (1) FR2734107B1 (pt)
GB (1) GB2300790B (pt)
RU (1) RU2145776C1 (pt)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6334219B1 (en) 1994-09-26 2001-12-25 Adc Telecommunications Inc. Channel selection for a hybrid fiber coax network
US7280564B1 (en) 1995-02-06 2007-10-09 Adc Telecommunications, Inc. Synchronization techniques in multipoint-to-point communication using orthgonal frequency division multiplexing
USRE42236E1 (en) 1995-02-06 2011-03-22 Adc Telecommunications, Inc. Multiuse subcarriers in multipoint-to-point communication using orthogonal frequency division multiplexing
US5499273A (en) * 1995-05-11 1996-03-12 Motorola, Inc. Method and apparatus for symbol clock recovery from signal having wide frequency possibilities
US5654991A (en) * 1995-07-31 1997-08-05 Harris Corporation Fast acquisition bit timing loop method and apparatus
DE69736619T2 (de) * 1996-05-08 2007-09-20 Koninklijke Philips Electronics N.V. Übertragung eines digitalen Informationssignals mit einer ersten spezifischen Abtastrate
US5960044A (en) * 1996-11-14 1999-09-28 Scientific-Atlanta, Inc. Apparatus and method for block phase estimation
JP3504119B2 (ja) * 1997-09-12 2004-03-08 三菱電機株式会社 復調装置、クロック再生装置、復調方法及びクロック再生方法
KR20010053361A (ko) * 1999-05-04 2001-06-25 요트.게.아. 롤페즈 스펙트럼 확산 시스템 안에서 펄스의 개시를 결정하기위한 방법
US6590945B1 (en) 1999-07-13 2003-07-08 Lucent Technologies Inc. Method and apparatus for frequency offset compensation
US6218896B1 (en) * 1999-08-27 2001-04-17 Tachyon, Inc. Vectored demodulation and frequency estimation apparatus and method
US6480555B1 (en) * 1999-09-02 2002-11-12 Motorola, Inc. Method and apparatus for extended range frequency correction burst detection
US6904104B1 (en) 1999-09-10 2005-06-07 Telefonaktiebolaget L M Ericsson (Publ) Technique for demodulating a linear modulated data signal in a communications system
JP3850611B2 (ja) * 1999-12-28 2006-11-29 三菱電機株式会社 タイミング再生器およびこれを用いた復調装置
US6879647B1 (en) 2000-09-29 2005-04-12 Northrop Grumman Corporation Radio receiver AM-MSK processing techniques
FR2822323B1 (fr) * 2001-03-15 2003-12-19 Cit Alcatel Procede de recuperation de rythme de paquets de signaux numeriques
RU2231915C2 (ru) * 2002-04-16 2004-06-27 Федеральное государственное унитарное предприятие "Конструкторское бюро "Луч" Дифференциальный фазовый дискриминатор символьной синхронизации (его варианты)
US7127017B1 (en) * 2002-07-19 2006-10-24 Rambus, Inc. Clock recovery circuit with second order digital filter
RU2254684C1 (ru) * 2004-01-08 2005-06-20 Общество с ограниченной ответственностью "Информационный Вычислительный Центр" Цифровое устройство символьной синхронизации
GB2488180A (en) 2011-02-21 2012-08-22 Thales Holdings Uk Plc Recovering a clock signal by combining a plurality of measurements at a plurality of samples and selecting a sample as a clock sample
US9797936B2 (en) * 2015-03-05 2017-10-24 National Instruments Corporation Counter enhancements for improved performance and ease-of-use
CN105711444B (zh) * 2016-03-30 2018-05-11 中车青岛四方机车车辆股份有限公司 一种轨道车辆蛇形失稳抑制系统和方法

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4472817A (en) * 1982-08-09 1984-09-18 Communications Satellite Corporation Non-PLL concurrent carrier clock synchronization
US4599732A (en) * 1984-04-17 1986-07-08 Harris Corporation Technique for acquiring timing and frequency synchronization for modem utilizing known (non-data) symbols as part of their normal transmitted data format
EP0316876B1 (en) * 1987-11-16 1994-01-26 Nec Corporation A digital signal receiving circuit with means for controlling a baud rate sampling phase by a power of sampled signals
US4866739A (en) * 1988-02-22 1989-09-12 Silicon Systems, Inc. Digital fast recovery timing algorithm
US4984249A (en) * 1989-05-26 1991-01-08 First Pacific Networks Method and apparatus for synchronizing digital data symbols
US4941155A (en) * 1989-11-16 1990-07-10 Bell Communications Research, Inc. Method and circuitry for symbol timing and frequency offset estimation in time division multiple access radio systems
US5103464A (en) * 1990-05-31 1992-04-07 Northern Telecom Limited Method and apparatus for timing recovery in digital data communications systems
US5280501A (en) * 1990-10-09 1994-01-18 Seko Corp. Data bit synchronization
US5134637A (en) * 1991-03-22 1992-07-28 Motorola, Inc. Clock recovery enhancement circuit
US5247544A (en) * 1992-03-26 1993-09-21 Motorola, Inc. Phase adjustment method and apparatus for use in a clock recovery circuit
US5259005A (en) * 1992-03-26 1993-11-02 Motorola, Inc. Apparatus for and method of synchronizing a clock signal
GB2276797B (en) * 1993-04-02 1996-10-23 Northern Telecom Ltd Digital demodulation
US5425057A (en) * 1994-04-25 1995-06-13 Paff; Thomas M. Phase demodulation method and apparatus using asynchronous sampling pulses
US5499273A (en) * 1995-05-11 1996-03-12 Motorola, Inc. Method and apparatus for symbol clock recovery from signal having wide frequency possibilities

Also Published As

Publication number Publication date
AU694851B2 (en) 1998-07-30
GB9609163D0 (en) 1996-07-03
GB2300790A (en) 1996-11-13
FR2734107B1 (fr) 2002-11-29
GB2300790B (en) 2000-01-19
JPH08317009A (ja) 1996-11-29
US5499273A (en) 1996-03-12
AU5065196A (en) 1996-11-21
JP2005167295A (ja) 2005-06-23
RU2145776C1 (ru) 2000-02-20
FR2734107A1 (fr) 1996-11-15

Similar Documents

Publication Publication Date Title
BR9602199A (pt) Aparelho e processo para recuperação de relógio de símbolo e um sinal em fase recebido e um sinal de quadratura recebido
BR9910200B1 (pt) processo e aparato para polimerizaÇço em fase de gÁs.
BR9607430A (pt) Processo de decodificação de um sinal codificado em um receptor processo e aparelho para decodificar um sinal codificado
EP0920759A4 (en) RESTORING SYNCHRONIZATION OF SYMBOLS BASED ON THE AMPLITUDE OF COMPLEX SAMPLES
GB2332763B (en) Clock control type information processing apparatus
BR9806888B1 (pt) processo para a determinaÇço da reatividade de folhelhos.
BR9810325B1 (pt) "processo e aparelho para processar um sinal de méltiplo acesso por divisço de càdigo"
GB2304476B (en) Symbol timing recovery circuit and method
BR9711749B1 (pt) aparelho e processo para apresentação e reunião de informação textual.
BR9913041B1 (pt) processo e aparelho para determinar um grupo de càdigos de embaralhamento de sinais em um sistema de comunicaÇço digital.
BR9605710A (pt) Processo para a obtençao e recuperaçao de ácidos
DE69422350D1 (de) Verfahren zur Phasenrückgewinnung und -abgleich für MSK Signale
BR9610993A (pt) Arranjo de anel travado em fase e processo para sincronização de um sinal de saída de um aranjo de anel travado em fase
BR9800450A (pt) Processo de polimerização de fase gasosa
AU5216899A (en) Method and apparatus for stopping a bus clock while there are no activities present on a bus
BR9709566A (pt) Processo e aparelho para detecção de perda de dados em um sistema de telecomunicações
DE69824610D1 (de) Phasendetektor zur taktrückgewinnung von datensignalen
ZA986733B (en) Electronic price label price synchronization system and method.
BR9704960A (pt) Sistema e processo de reprodução de um documento
BR9206947A (pt) Sistema para deslocamento da fase de um sinal de relógio processo e sistema para recuperação do relógio de um sinal de dados digitais e sistema para deslocamento da fase de um sinal do relógio
BR9611351A (pt) Processo e arranjo para medir tráfego em um sistema de comunicação
NZ286739A (en) Data recovery for electronic price label system
GB9815784D0 (en) Phase detection apparatus and method
BR9706381A (pt) Processo para a colocação á prova de umidade de um elemento de ligação em um cabo de alta frequência
FR2770056B1 (fr) Demodulateur, circuit de recuperation de signal d'horloge, procede de demodulation et procede de recuperation de signal d'horloge

Legal Events

Date Code Title Description
FB34 Technical and formal requirements: requirement - article 34 of industrial property law
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: REFERENTE A 9A E 10A ANUIDADES.

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 1870 DE 07/11/2006.