BR9810297A - Detecção de um sinal de propagação de espectro - Google Patents

Detecção de um sinal de propagação de espectro

Info

Publication number
BR9810297A
BR9810297A BR9810297-4A BR9810297A BR9810297A BR 9810297 A BR9810297 A BR 9810297A BR 9810297 A BR9810297 A BR 9810297A BR 9810297 A BR9810297 A BR 9810297A
Authority
BR
Brazil
Prior art keywords
signal
propagation
detection
spectrum
propagation signal
Prior art date
Application number
BR9810297-4A
Other languages
English (en)
Inventor
Erik A Ramberg
Robert K Froelich
Forest F Fulton
Original Assignee
Cellnet Data Systems 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 Cellnet Data Systems Inc filed Critical Cellnet Data Systems Inc
Publication of BR9810297A publication Critical patent/BR9810297A/pt

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H04B1/7073—Synchronisation aspects
    • H04B1/7075—Synchronisation aspects with code phase acquisition
    • H04B1/70751—Synchronisation aspects with code phase acquisition using partial detection
    • H04B1/70752—Partial correlation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H04B1/7073—Synchronisation aspects
    • H04B1/7075—Synchronisation aspects with code phase acquisition
    • H04B1/708—Parallel implementation

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)

Abstract

Patente de Invenção: <B>"AQUISIçãO DE UM SINAL DE ESPECTRO DE PROPAGAçãO"<D>. Um sinal de espectro é detectado em um sinal de propagação desconhecido por meio da amostragem do sinal em uma proporção de amostragem selecionada e efetua uma função de despropagação no sinal amostrado usando sinais de referência múltipla, cada um dos quais representa uma das fases múltiplas de busca do sinal de propagação. As saídas de acumulação são, então, produzidas combinando-se cada saída de despropagação com uma versão de troca de fase da saída de acumulação correspondente.
BR9810297-4A 1997-06-23 1998-06-19 Detecção de um sinal de propagação de espectro BR9810297A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/881,549 US6263009B1 (en) 1997-06-23 1997-06-23 Acquiring a spread spectrum signal
PCT/US1998/012775 WO1998059429A1 (en) 1997-06-23 1998-06-19 Acquiring a spread spectrum signal

Publications (1)

Publication Number Publication Date
BR9810297A true BR9810297A (pt) 2001-09-11

Family

ID=25378704

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9810297-4A BR9810297A (pt) 1997-06-23 1998-06-19 Detecção de um sinal de propagação de espectro

Country Status (7)

Country Link
US (1) US6263009B1 (pt)
EP (1) EP0992124A4 (pt)
AU (1) AU752012B2 (pt)
BR (1) BR9810297A (pt)
CA (1) CA2294219C (pt)
MX (1) MXPA00000191A (pt)
WO (1) WO1998059429A1 (pt)

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DE10210236B4 (de) * 2002-03-08 2006-01-19 Advanced Micro Devices, Inc., Sunnyvale WLAN-Empfänger-Synchronisation
US7417557B2 (en) 2003-05-07 2008-08-26 Itron, Inc. Applications for a low cost receiver in an automatic meter reading system
US20050094584A1 (en) * 2003-11-04 2005-05-05 Advanced Micro Devices, Inc. Architecture for a wireless local area network physical layer
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US7847536B2 (en) * 2006-08-31 2010-12-07 Itron, Inc. Hall sensor with temperature drift control
US8024724B2 (en) 2006-08-31 2011-09-20 Itron, Inc. Firmware download
US8312103B2 (en) 2006-08-31 2012-11-13 Itron, Inc. Periodic balanced communication node and server assignment
US8049642B2 (en) 2006-09-05 2011-11-01 Itron, Inc. Load side voltage sensing for AMI metrology
US9354083B2 (en) * 2006-09-15 2016-05-31 Itron, Inc. Home area networking (HAN) with low power considerations for battery devices
US8059009B2 (en) 2006-09-15 2011-11-15 Itron, Inc. Uplink routing without routing table
US8212687B2 (en) 2006-09-15 2012-07-03 Itron, Inc. Load side voltage sensing for AMI metrology
US8138944B2 (en) 2006-09-15 2012-03-20 Itron, Inc. Home area networking (HAN) with handheld for diagnostics
US8055461B2 (en) 2006-09-15 2011-11-08 Itron, Inc. Distributing metering responses for load balancing an AMR network
US7843391B2 (en) 2006-09-15 2010-11-30 Itron, Inc. RF local area network antenna design
US8787210B2 (en) 2006-09-15 2014-07-22 Itron, Inc. Firmware download with adaptive lost packet recovery
US8384558B2 (en) * 2006-10-19 2013-02-26 Itron, Inc. Extending contact life in remote disconnect applications
US8090002B2 (en) * 2007-03-07 2012-01-03 Mediatek Inc. Method and apparatus for spreading signal acquisition and tracking
US10200476B2 (en) 2011-10-18 2019-02-05 Itron, Inc. Traffic management and remote configuration in a gateway-based network
US9419888B2 (en) 2011-12-22 2016-08-16 Itron, Inc. Cell router failure detection in a mesh network
US9413601B2 (en) 2012-09-28 2016-08-09 Qualcomm Incorporated Channel reuse among communication networks sharing a communication channel
US8995247B2 (en) 2013-01-07 2015-03-31 Qualcomm Incorporated Device triggered wake up of powerline communication devices
US10833799B2 (en) 2018-05-31 2020-11-10 Itron Global Sarl Message correction and dynamic correction adjustment for communication systems

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Also Published As

Publication number Publication date
CA2294219C (en) 2009-05-19
MXPA00000191A (es) 2002-04-24
EP0992124A1 (en) 2000-04-12
WO1998059429A1 (en) 1998-12-30
CA2294219A1 (en) 1998-12-30
AU752012B2 (en) 2002-09-05
US6263009B1 (en) 2001-07-17
EP0992124A4 (en) 2003-06-04
AU8374298A (en) 1999-01-04

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Legal Events

Date Code Title Description
B25A Requested transfer of rights approved

Free format text: SCHLUMBERGER RESOURCE MANAGEMENT SERVICES, INC. (US)

B15K Others concerning applications: alteration of classification

Free format text: ALTERADA A CLASSIFICACAO H04B 1/707 PARA INT. CL. 2011.01 H04B 1/707; H04K 1/00; H04L 7/00

Ipc: H04B 1/707 (2011.01), H04K 1/00 (2006.01), H04L 7/

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

Free format text: INDEFIRO O PEDIDO DE ACORDO COM O(S) ARTIGO(S) 8O COMBINADO COM 13 DA LPI

B09B Patent application refused [chapter 9.2 patent gazette]

Free format text: MANTIDO O INDEFERIMENTO UMA VEZ QUE NAO FOI APRESENTADO RECURSO DENTRO DO PRAZO LEGAL.