BR9810328A - Processamento de banda de passagem de um sinalde espectro amplo - Google Patents

Processamento de banda de passagem de um sinalde espectro amplo

Info

Publication number
BR9810328A
BR9810328A BR9810328-8A BR9810328A BR9810328A BR 9810328 A BR9810328 A BR 9810328A BR 9810328 A BR9810328 A BR 9810328A BR 9810328 A BR9810328 A BR 9810328A
Authority
BR
Brazil
Prior art keywords
spectrum signal
band processing
pass
broad spectrum
broad
Prior art date
Application number
BR9810328-8A
Other languages
English (en)
Inventor
Erik A Ramberg
Robert K Froelich
Forrest 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 BR9810328A publication Critical patent/BR9810328A/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)
  • Mobile Radio Communication Systems (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

Patente de Invenção: "PROCESSAMENTO DE BANDA DEPASSAGEM DE UM SINAL DE ESPECTRO AMPLO". Um sinal deespectro amplo amostrado de modo digital é recebido, concentradoe acumulado a uma freq³ência de centro menor do que a taxa deamostragem e maior do que zero.
BR9810328-8A 1997-06-23 1998-06-19 Processamento de banda de passagem de um sinalde espectro amplo BR9810328A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/880,470 US6741638B2 (en) 1997-06-23 1997-06-23 Bandpass processing of a spread spectrum signal
PCT/US1998/012833 WO1998059445A1 (en) 1997-06-23 1998-06-19 Bandpass processing of a spread spectrum signal

Publications (1)

Publication Number Publication Date
BR9810328A true BR9810328A (pt) 2001-11-13

Family

ID=25376353

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9810328-8A BR9810328A (pt) 1997-06-23 1998-06-19 Processamento de banda de passagem de um sinalde espectro amplo

Country Status (7)

Country Link
US (2) US6741638B2 (pt)
EP (1) EP0992133A4 (pt)
AU (1) AU752232B2 (pt)
BR (1) BR9810328A (pt)
CA (1) CA2294214C (pt)
MX (1) MXPA00000194A (pt)
WO (1) WO1998059445A1 (pt)

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Also Published As

Publication number Publication date
US20010038662A1 (en) 2001-11-08
CA2294214A1 (en) 1998-12-30
EP0992133A1 (en) 2000-04-12
MXPA00000194A (es) 2002-04-24
AU752232B2 (en) 2002-09-12
AU7981498A (en) 1999-01-04
WO1998059445A1 (en) 1998-12-30
US6741638B2 (en) 2004-05-25
CA2294214C (en) 2005-12-20
EP0992133A4 (en) 2003-06-04
US20040258140A1 (en) 2004-12-23

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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 8A , 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 PUBLICADO NA RPI 1945 DE 15 - 04 - 2008.