BR9810932A - Correlação de banda de passagem de um sinal deespectro amplo - Google Patents

Correlação de banda de passagem de um sinal deespectro amplo

Info

Publication number
BR9810932A
BR9810932A BR9810932-4A BR9810932A BR9810932A BR 9810932 A BR9810932 A BR 9810932A BR 9810932 A BR9810932 A BR 9810932A BR 9810932 A BR9810932 A BR 9810932A
Authority
BR
Brazil
Prior art keywords
spectrum signal
broad
cross
band correlation
signal
Prior art date
Application number
BR9810932-4A
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 BR9810932A publication Critical patent/BR9810932A/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
    • H04B1/7073—Synchronisation aspects
    • H04B1/7075—Synchronisation aspects with code phase acquisition
    • H04B1/708—Parallel implementation
    • 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
    • H04B1/70757—Synchronisation aspects with code phase acquisition with increased resolution, i.e. higher than half a chip

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Stereo-Broadcasting Methods (AREA)

Abstract

Patente de Invenção: "CORRELAçãO DE BANDA DEPASSAGEM DE UM SINAL DE ESPECTRO AMPLO". Um sinal deespectro amplo é processado após ser amostrado a uma taxa deamostragem selecionada e sintonizado para uma freq³ência decentro menor do que a taxa de amostragem e maior do que zero. Osinal é multiplicado por um sinal de referência para produzir umasaída de produto correspondente, e uma saída de acumulação éformada pela combinação da saída de produto com uma versãodeslocada de fase da saída de acumulação.
BR9810932-4A 1997-06-23 1998-06-19 Correlação de banda de passagem de um sinal deespectro amplo BR9810932A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/880,578 US6456644B1 (en) 1997-06-23 1997-06-23 Bandpass correlation of a spread spectrum signal
PCT/US1998/012786 WO1998059444A1 (en) 1997-06-23 1998-06-19 Bandpass correlation of a spread spectrum signal

Publications (1)

Publication Number Publication Date
BR9810932A true BR9810932A (pt) 2001-11-20

Family

ID=25376582

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9810932-4A BR9810932A (pt) 1997-06-23 1998-06-19 Correlação de banda de passagem de um sinal deespectro amplo

Country Status (7)

Country Link
US (1) US6456644B1 (pt)
EP (1) EP0992135A4 (pt)
AU (1) AU752349B2 (pt)
BR (1) BR9810932A (pt)
CA (1) CA2294536C (pt)
MX (1) MXPA00000193A (pt)
WO (1) WO1998059444A1 (pt)

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US8138944B2 (en) 2006-09-15 2012-03-20 Itron, Inc. Home area networking (HAN) with handheld for diagnostics
US7986718B2 (en) * 2006-09-15 2011-07-26 Itron, Inc. Discovery phase in a frequency hopping network
US8212687B2 (en) 2006-09-15 2012-07-03 Itron, Inc. Load side voltage sensing for AMI metrology
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US8081673B2 (en) * 2007-11-30 2011-12-20 Cellnet Innovations, Inc. Systems and methods for processing spread spectrum signals
US8107551B2 (en) * 2007-12-14 2012-01-31 Cellnet Innovations, Inc. Systems and methods for signal modulation and demodulation using phase
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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
CA2294536C (en) 2005-11-15
MXPA00000193A (es) 2002-04-24
US6456644B1 (en) 2002-09-24
WO1998059444A1 (en) 1998-12-30
EP0992135A4 (en) 2003-06-04
EP0992135A1 (en) 2000-04-12
AU8259398A (en) 1999-01-04
CA2294536A1 (en) 1998-12-30
AU752349B2 (en) 2002-09-19

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Legal Events

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B25A Requested transfer of rights approved

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

B08F Application fees: application dismissed [chapter 8.6 patent gazette]

Free format text: REFERENTE A 7A,8A E 9A 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 1909 DE 07/08/2007.