ATE291299T1 - Verfahren und schaltung für die erzeugung einer variablen taktfrequenz - Google Patents

Verfahren und schaltung für die erzeugung einer variablen taktfrequenz

Info

Publication number
ATE291299T1
ATE291299T1 AT99932333T AT99932333T ATE291299T1 AT E291299 T1 ATE291299 T1 AT E291299T1 AT 99932333 T AT99932333 T AT 99932333T AT 99932333 T AT99932333 T AT 99932333T AT E291299 T1 ATE291299 T1 AT E291299T1
Authority
AT
Austria
Prior art keywords
local
clock rate
sequence
variable
source
Prior art date
Application number
AT99932333T
Other languages
English (en)
Inventor
Inchul Kang
Kennan Laudel
Original Assignee
Hyundai Electronics America
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 Hyundai Electronics America filed Critical Hyundai Electronics America
Application granted granted Critical
Publication of ATE291299T1 publication Critical patent/ATE291299T1/de

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
    • H04B1/709—Correlator structure
    • 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
    • H04B1/7085—Synchronisation aspects using a code tracking loop, e.g. a delay-locked loop
    • 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
    • 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
    • H04B1/7077—Multi-step acquisition, e.g. multi-dwell, coarse-fine or validation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2201/00—Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
    • H04B2201/69—Orthogonal indexing scheme relating to spread spectrum techniques in general
    • H04B2201/707—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
    • H04B2201/70707—Efficiency-related aspects
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/0007—Code type
    • H04J13/0022—PN, e.g. Kronecker

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Radio Relay Systems (AREA)
AT99932333T 1998-07-10 1999-07-08 Verfahren und schaltung für die erzeugung einer variablen taktfrequenz ATE291299T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US9237498P 1998-07-10 1998-07-10
PCT/US1999/015365 WO2000003507A2 (en) 1998-07-10 1999-07-08 A variable clock rate correlation circuit and method of operation

Publications (1)

Publication Number Publication Date
ATE291299T1 true ATE291299T1 (de) 2005-04-15

Family

ID=22232909

Family Applications (1)

Application Number Title Priority Date Filing Date
AT99932333T ATE291299T1 (de) 1998-07-10 1999-07-08 Verfahren und schaltung für die erzeugung einer variablen taktfrequenz

Country Status (8)

Country Link
US (1) US6657986B1 (de)
EP (1) EP1125383B1 (de)
JP (1) JP2002520947A (de)
KR (1) KR20010087153A (de)
AT (1) ATE291299T1 (de)
DE (1) DE69924277T2 (de)
TW (1) TW428379B (de)
WO (1) WO2000003507A2 (de)

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US8385470B2 (en) * 2000-12-05 2013-02-26 Google Inc. Coding a signal with a shuffled-Hadamard function
US8374218B2 (en) * 2000-12-05 2013-02-12 Google Inc. Combining signals with a shuffled-hadamard function
US7352833B2 (en) * 2002-11-18 2008-04-01 Google Inc. Method and system for temporal autocorrelation filtering
GB0316608D0 (en) * 2003-07-16 2003-08-20 Koninkl Philips Electronics Nv A method of correlating a sampled direct sequence spread spectrum signal with a locally provided replica
DE602004010840T2 (de) * 2003-11-03 2008-12-11 Nxp B.V. Vorrichtung zur bestimmung eines frequenzoffsetfehlers und darauf basierender empfänger
DE102005006441A1 (de) * 2005-02-12 2006-08-17 Newlogic Technologies Ag Vorrichtung und Verfahren für das Ermitteln von Präambeln entssprechend dem IEEE 802.11a drahtlosen LAN Standard
DE102005006442A1 (de) * 2005-02-12 2006-08-24 Newlogic Technologies Ag Vorrichtung und Methode zur Detektion von Präambeln nach dem IEEE 802.11b Wireless LAN Standard
DE102005006443A1 (de) * 2005-02-12 2006-08-24 Newlogic Technologies Ag Vorrichtung und Verfahren zur Detektion von Präambeln nach den IEEE 802.11a/b/g Wireless Standards und seine Anwendung auf einen 802.11 Multimodenempfänger
JP4555702B2 (ja) * 2005-02-21 2010-10-06 富士通株式会社 歪補償装置
US7339405B2 (en) * 2006-02-02 2008-03-04 Mediatek, Inc. Clock rate adjustment apparatus and method for adjusting clock rate
US7994976B2 (en) * 2006-04-19 2011-08-09 Mediatek Inc. Satellite signal adaptive time-division multiplexing receiver and method
US7474260B2 (en) * 2006-04-19 2009-01-06 Media Tek Inc. Adjustable time-division multiplexing receiver for receiving satellite signal and method for the same
US7916075B2 (en) * 2006-04-19 2011-03-29 Mediatek Inc. Satellite signal adaptive time-division multiplexing receiving device
JP5142483B2 (ja) 2006-05-30 2013-02-13 株式会社東芝 半導体装置及び表示装置
GB2475229B (en) * 2009-11-05 2016-08-03 Thales Holdings Uk Plc Ultra-wideband radio reception
CN112702135B (zh) * 2020-12-24 2023-09-29 京信网络系统股份有限公司 信号处理方法、装置、系统、介质和电子设备
CN115296722B (zh) * 2022-08-11 2023-05-02 中国电子科技集团公司第三十四研究所 一种面向卫星调制解调器的可变速率数据传输装置及方法

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DE3370918D1 (en) * 1982-08-19 1987-05-14 Bbc Brown Boveri & Cie Method of synchronising encryption and decryption during the transmission of digital encrypted data, and apparatus for carrying out said method
US4558422A (en) * 1983-03-23 1985-12-10 Tektronix, Inc. Digital signal sampling system with two unrelated sampling timebases
US4607375A (en) * 1984-10-17 1986-08-19 Itt Corporation Covert communication system
US4901307A (en) * 1986-10-17 1990-02-13 Qualcomm, Inc. Spread spectrum multiple access communication system using satellite or terrestrial repeaters
US5105437A (en) * 1990-07-26 1992-04-14 Unisys Corporation Programmable digital acquisition and tracking controller
US5268927A (en) 1992-10-06 1993-12-07 Mayflower Communications Company, Inc. Digital adaptive transversal filter for spread spectrum receivers
US5570349A (en) 1994-06-07 1996-10-29 Stanford Telecommunications, Inc. Wireless direct sequence spread spectrum digital cellular telephone system
US5361276A (en) 1993-09-13 1994-11-01 At&T Bell Laboratories All digital maximum likelihood based spread spectrum receiver
US5422909A (en) 1993-11-30 1995-06-06 Motorola, Inc. Method and apparatus for multi-phase component downconversion
US5539730A (en) 1994-01-11 1996-07-23 Ericsson Ge Mobile Communications Inc. TDMA/FDMA/CDMA hybrid radio access methods
US5856998A (en) * 1994-09-09 1999-01-05 Omnipoint Corporation Method and apparatus for correlating a continuous phase modulated spread spectrum signal
EP0714035A1 (de) * 1994-11-24 1996-05-29 The Furukawa Electric Co., Ltd. Radargerät
US5812522A (en) 1995-03-31 1998-09-22 Airtouch Communications, Inc. Location-ruled radio-integrated network
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US5640416A (en) * 1995-06-07 1997-06-17 Comsat Corporation Digital downconverter/despreader for direct sequence spread spectrum communications system
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Also Published As

Publication number Publication date
DE69924277T2 (de) 2006-03-30
JP2002520947A (ja) 2002-07-09
WO2000003507A2 (en) 2000-01-20
DE69924277D1 (de) 2005-04-21
US6657986B1 (en) 2003-12-02
KR20010087153A (ko) 2001-09-15
EP1125383A2 (de) 2001-08-22
EP1125383B1 (de) 2005-03-16
TW428379B (en) 2001-04-01
EP1125383A4 (de) 2004-04-21
WO2000003507A3 (en) 2001-06-14

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