DE69633625D1 - Adaptiver entspreizer - Google Patents

Adaptiver entspreizer

Info

Publication number
DE69633625D1
DE69633625D1 DE1996633625 DE69633625T DE69633625D1 DE 69633625 D1 DE69633625 D1 DE 69633625D1 DE 1996633625 DE1996633625 DE 1996633625 DE 69633625 T DE69633625 T DE 69633625T DE 69633625 D1 DE69633625 D1 DE 69633625D1
Authority
DE
Germany
Prior art keywords
spreader
adaptive
adaptive spreader
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
DE1996633625
Other languages
English (en)
Other versions
DE69633625T2 (de
Inventor
Arthur Ross
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qualcomm Inc
Original Assignee
Qualcomm 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 Qualcomm Inc filed Critical Qualcomm Inc
Publication of DE69633625D1 publication Critical patent/DE69633625D1/de
Application granted granted Critical
Publication of DE69633625T2 publication Critical patent/DE69633625T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • H04B1/7097—Interference-related aspects
    • H04B1/711—Interference-related aspects the interference being multi-path interference
    • 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
    • H04B1/7097—Interference-related aspects
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L25/03012—Arrangements for removing intersymbol interference operating in the time domain
    • H04L25/03019—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception
    • H04L25/03038—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception with a non-recursive structure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L2025/0335—Arrangements for removing intersymbol interference characterised by the type of transmission
    • H04L2025/03375—Passband transmission
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L2025/03433—Arrangements for removing intersymbol interference characterised by equaliser structure
    • H04L2025/03439—Fixed structures
    • H04L2025/03445—Time domain
    • H04L2025/03471—Tapped delay lines
    • H04L2025/03477—Tapped delay lines not time-recursive
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L2025/03592—Adaptation methods
    • H04L2025/03598—Algorithms
    • H04L2025/03611—Iterative algorithms
    • H04L2025/03617—Time recursive algorithms

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Filters That Use Time-Delay Elements (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Radio Transmission System (AREA)
  • Mobile Radio Communication Systems (AREA)
DE69633625T 1995-07-31 1996-07-31 Adaptiver entspreizer Expired - Lifetime DE69633625T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US509722 1995-07-31
US08/509,722 US5692006A (en) 1995-07-31 1995-07-31 Adaptive despreader
PCT/US1996/012531 WO1997005709A1 (en) 1995-07-31 1996-07-31 Adaptive despreader

Publications (2)

Publication Number Publication Date
DE69633625D1 true DE69633625D1 (de) 2004-11-18
DE69633625T2 DE69633625T2 (de) 2005-10-27

Family

ID=24027839

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69633625T Expired - Lifetime DE69633625T2 (de) 1995-07-31 1996-07-31 Adaptiver entspreizer

Country Status (17)

Country Link
US (1) US5692006A (de)
EP (1) EP0842568B1 (de)
JP (2) JP3241739B2 (de)
KR (1) KR19990036012A (de)
CN (1) CN1091554C (de)
AR (1) AR003021A1 (de)
AT (1) ATE279814T1 (de)
AU (1) AU6715896A (de)
BR (1) BR9609939A (de)
CA (1) CA2228131A1 (de)
DE (1) DE69633625T2 (de)
FI (1) FI980162A (de)
HK (1) HK1010952A1 (de)
MX (1) MX9800853A (de)
TW (1) TW322667B (de)
WO (1) WO1997005709A1 (de)
ZA (1) ZA966011B (de)

Families Citing this family (66)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09116475A (ja) * 1995-10-23 1997-05-02 Nec Corp 時間ダイバーシチ送受信システム
JP3310160B2 (ja) * 1996-03-29 2002-07-29 松下電器産業株式会社 スペクトラム拡散方式受信装置
US6510687B1 (en) 1996-06-14 2003-01-28 Sharav Sluices Ltd. Renewable resource hydro/aero-power generation plant and method of generating hydro/aero-power
JP3323067B2 (ja) * 1996-07-12 2002-09-09 沖電気工業株式会社 Ｃｄｍａ受信装置
US6496543B1 (en) * 1996-10-29 2002-12-17 Qualcomm Incorporated Method and apparatus for providing high speed data communications in a cellular environment
US5912825A (en) * 1997-02-27 1999-06-15 Eg&G Instruments, Inc. Gated base line restorer system
US6501771B2 (en) 1997-02-11 2002-12-31 At&T Wireless Services, Inc. Delay compensation
US6085114A (en) 1997-02-06 2000-07-04 At&T Wireless Systems Inc. Remote wireless unit having reduced power operating mode
US5933421A (en) 1997-02-06 1999-08-03 At&T Wireless Services Inc. Method for frequency division duplex communications
WO1998037653A2 (en) * 1997-02-19 1998-08-27 At & T Wireless Services, Inc. Remote wireless unit having reduced power operating mode for a discrete multitone spread spectrum communications system
US5864543A (en) * 1997-02-24 1999-01-26 At&T Wireless Services, Inc. Transmit/receive compensation in a time division duplex system
WO1998037654A2 (en) 1997-02-24 1998-08-27 At & T Wireless Services, Inc. Vertical adaptive antenna array for a discrete multitone spread spectrum communications system
US6289037B1 (en) * 1997-02-24 2001-09-11 At&T Wireless Services Inc. Out of channel cyclic redundancy code method for a discrete multitone spread spectrum communications system
US6408016B1 (en) 1997-02-24 2002-06-18 At&T Wireless Services, Inc. Adaptive weight update method and system for a discrete multitone spread spectrum communications system
US5923700A (en) * 1997-02-24 1999-07-13 At & T Wireless Adaptive weight update method and system for a discrete multitone spread spectrum communications system
WO1998037638A2 (en) * 1997-02-24 1998-08-27 At & T Wireless Services, Inc. Highly bandwidth-efficient communications
US6128276A (en) 1997-02-24 2000-10-03 Radix Wireless, Inc. Stacked-carrier discrete multiple tone communication technology and combinations with code nulling, interference cancellation, retrodirective communication and adaptive antenna arrays
US5889814A (en) * 1997-02-24 1999-03-30 At&T Wireless Services, Inc. Transmit/receive compensation for a dual FDD/TDD architecture
US6359923B1 (en) 1997-12-18 2002-03-19 At&T Wireless Services, Inc. Highly bandwidth efficient communications
US6429400B1 (en) 1997-12-03 2002-08-06 Matsushita Electric Works Ltd. Plasma processing apparatus and method
US6175588B1 (en) * 1997-12-30 2001-01-16 Motorola, Inc. Communication device and method for interference suppression using adaptive equalization in a spread spectrum communication system
US6603801B1 (en) * 1998-01-16 2003-08-05 Intersil Americas Inc. Spread spectrum transceiver for use in wireless local area network and having multipath mitigation
US6240133B1 (en) 1998-02-05 2001-05-29 Texas Instruments Incorporated High stability fast tracking adaptive equalizer for use with time varying communication channels
US6366607B1 (en) * 1998-05-14 2002-04-02 Interdigital Technology Corporation Processing for improved performance and reduced pilot
DE69835874T2 (de) * 1998-07-13 2007-04-12 Hewlett-Packard Development Co., L.P., Houston Chipströmedekodierung
FR2782585B1 (fr) * 1998-08-20 2000-09-22 France Telecom Recepteur en rateau iteratif et procede de reception correspondant
US6424091B1 (en) 1998-10-26 2002-07-23 Matsushita Electric Works, Ltd. Plasma treatment apparatus and plasma treatment method performed by use of the same apparatus
US6438156B1 (en) * 1999-02-11 2002-08-20 Adtran, Inc. Stepwise adaptive finite impulse response filter for spread spectrum radio
GB9904421D0 (en) * 1999-02-25 1999-04-21 Univ Edinburgh Telecommunications receiver
US6314130B1 (en) 1999-04-28 2001-11-06 Dspc Technologies, Ltd. System and method for joint time tracking of multiple paths
US6760438B1 (en) * 1999-07-01 2004-07-06 Nortel Networks Limited System and method for Viterbi decoding on encrypted data
EP1073210B1 (de) 1999-07-30 2007-03-14 Koninklijke Philips Electronics N.V. Vorrichtung zur Spreizspektrumdatenübertragung mit einem Datenempfänger
JP4221847B2 (ja) 1999-10-25 2009-02-12 パナソニック電工株式会社 プラズマ処理装置及びプラズマ点灯方法
US6944217B1 (en) 2000-02-01 2005-09-13 International Business Machines Corporation Interleaved finite impulse response filter
US7006581B2 (en) * 2000-05-25 2006-02-28 Vigil Armando J Method for demodulating a digital signal subjected to multipath propagation impairment and an associated receiver
US6522683B1 (en) * 2000-08-10 2003-02-18 Qualcomm, Incorporated Method and apparatus for adaptive linear equalization for walsh covered modulation
US6744806B1 (en) * 2000-09-13 2004-06-01 Ut-Battelle, L.L.C. Fast-synchronizing high-fidelity spread-spectrum receiver
US7218666B2 (en) * 2000-12-29 2007-05-15 Motorola, Inc. Method and system for transmission and frequency domain equalization for wideband CDMA system
US20020191568A1 (en) * 2001-03-29 2002-12-19 Koninklijke Philips Electronics N.V. Adaptive chip equalizers for synchronous DS-CDMA systems with pilot sequences
SG122753A1 (en) * 2001-11-30 2006-06-29 Sony Corp Advanced receiver for CDMA downlink
US6912244B2 (en) * 2002-01-31 2005-06-28 Qualcomm Inc. Pilot frequency acquisition based on a window of data samples
US7305020B2 (en) * 2002-02-04 2007-12-04 Vizionware, Inc. Method and system of reducing electromagnetic interference emissions
JP2004040305A (ja) * 2002-07-01 2004-02-05 Fujitsu Ltd Ｃｄｍａ受信装置及びその方法
US7301993B2 (en) * 2002-09-13 2007-11-27 Broadcom Corporation Channel estimation in a spread spectrum receiver
US7406066B2 (en) * 2002-10-09 2008-07-29 Yi Zheng Asynchronous modulation and demodulation for spread spectrum and code-division multiple access communication
US20050105591A1 (en) * 2003-02-28 2005-05-19 Xemi, Inc. Noise source synchronization for power spread signals
US7437135B2 (en) 2003-10-30 2008-10-14 Interdigital Technology Corporation Joint channel equalizer interference canceller advanced receiver
US7400692B2 (en) 2004-01-14 2008-07-15 Interdigital Technology Corporation Telescoping window based equalization
US20050249274A1 (en) * 2004-05-10 2005-11-10 Larosa Christopher P Linear filter equalizer
US20070206641A1 (en) * 2005-11-10 2007-09-06 X-Emi, Inc. Encoding and deserialization-serialization for digital signals
US7649932B2 (en) * 2005-11-30 2010-01-19 Microtune (Texas), L.P. Segmented equalizer
US7885929B2 (en) 2006-01-03 2011-02-08 Motio, Inc. Continuous integration of business intelligence software
US8920343B2 (en) 2006-03-23 2014-12-30 Michael Edward Sabatino Apparatus for acquiring and processing of physiological auditory signals
CN101536388B (zh) 2006-11-14 2012-11-14 英特尔公司 用于对高多普勒环境中的alamouti编码的信号解码的空时解码器和方法
US20080250170A1 (en) * 2007-04-03 2008-10-09 Vizionware, Inc. Clock mode detection in an adaptive two-wire bus
US20080246626A1 (en) * 2007-04-03 2008-10-09 Vizionware, Inc. Data transaction direction detection in an adaptive two-wire bus
US20080250184A1 (en) * 2007-04-03 2008-10-09 Vizionware, Inc. Adaptive two-wire bus
US20080250175A1 (en) * 2007-04-03 2008-10-09 Vizionware, Inc. Cable assembly having an adaptive two-wire bus
US20080247414A1 (en) * 2007-04-03 2008-10-09 Vizionware, Inc. Clock stretching in an adaptive two-wire bus
US20090266853A1 (en) * 2008-04-23 2009-10-29 Emanuele Bianchi Self-looping portable container and dispensing apparatus
US8743848B2 (en) * 2009-05-26 2014-06-03 Broadcom Corporation Hybrid location determination for wireless communication device
US8229041B2 (en) * 2009-05-26 2012-07-24 Broadcom Corporation Direct detection of wireless interferers in a communication device for multiple modulation types
US9648444B2 (en) 2014-01-06 2017-05-09 Brian G. Agee Physically secure digital signal processing for wireless M2M networks
US10812955B2 (en) 2013-01-05 2020-10-20 Brian G Agee Generation of signals with unpredictable transmission properties for wireless M2M networks
US9722828B2 (en) * 2015-09-23 2017-08-01 Qualcomm Incorporated Switch capacitor decision feedback equalizer with internal charge summation
WO2020050004A1 (ja) * 2018-09-03 2020-03-12 日本電気株式会社 伝送装置、伝送時間変動補償方法および伝送時間変動補償プログラムを格納した非一時的なコンピュータ可読媒体

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5218619A (en) * 1990-12-17 1993-06-08 Ericsson Ge Mobile Communications Holding, Inc. CDMA subtractive demodulation
GB2268371B (en) * 1992-04-10 1995-09-20 Roke Manor Research Radio communication systems
US5353300A (en) * 1993-06-07 1994-10-04 Motorola, Inc. Communication method for an adaptive direct sequence CDMA communication system
US5359624A (en) * 1993-06-07 1994-10-25 Motorola, Inc. System and method for chip timing synchronization in an adaptive direct sequence CDMA communication system
EP0675606B1 (de) * 1993-10-13 2002-01-23 NTT DoCoMo, Inc. Empfänger für spreizspektrumübertragung
US5422908A (en) * 1993-11-22 1995-06-06 Interdigital Technology Corp. Phased array spread spectrum system and method
JP2734952B2 (ja) * 1993-12-16 1998-04-02 日本電気株式会社 Ｃｄｍａ基地局受信装置
JP3202125B2 (ja) * 1994-03-10 2001-08-27 沖電気工業株式会社 符号分割多元接続システム
US5596600A (en) * 1995-04-06 1997-01-21 Mayflower Communications Company, Inc. Standalone canceller of narrow band interference for spread spectrum receivers

Also Published As

Publication number Publication date
AU6715896A (en) 1997-02-26
JP3241739B2 (ja) 2001-12-25
CN1091554C (zh) 2002-09-25
MX9800853A (es) 1998-04-30
HK1010952A1 (en) 1999-07-02
EP0842568A1 (de) 1998-05-20
TW322667B (de) 1997-12-11
US5692006A (en) 1997-11-25
JPH11510343A (ja) 1999-09-07
AR003021A1 (es) 1998-05-27
FI980162A0 (fi) 1998-01-26
CN1192830A (zh) 1998-09-09
JP2001352277A (ja) 2001-12-21
EP0842568B1 (de) 2004-10-13
BR9609939A (pt) 1999-06-08
CA2228131A1 (en) 1997-02-13
DE69633625T2 (de) 2005-10-27
ZA966011B (en) 1997-01-31
WO1997005709A1 (en) 1997-02-13
ATE279814T1 (de) 2004-10-15
FI980162A (fi) 1998-03-30
KR19990036012A (ko) 1999-05-25

Similar Documents

Publication Publication Date Title
DE69633625D1 (de) Adaptiver entspreizer
IT1298691B1 (it) Pesticidi
NO962362L (no) Grensaks
DE69615552T2 (de) Pflanzenschutzmittel
DE59609887D1 (de) Substituierte cyanophenyluracile
DE59609786D1 (de) Schädlingsbekämpfungsmittel
DE59610160D1 (de) Verstellring
DE69613843T2 (de) Pflanzenschutzmitteln
ATA2895A (de) Streugerät
DE59610332D1 (de) Substituierte aminouracile
BR9608890A (pt) N-metilenotiouréias substituídas
BR9609319A (pt) Carbonilaminofeniluracilas substituídas
FI971677A (fi) Adaptiivinen tasain
FI100497B (fi) Mukautuva käyttöliittymä
BR9603376A (pt) Tetrahidro-5-nitro-pirimidinas substituídas
DE59607732D1 (de) Substituierte benzylidencyanessigester
DE69602157D1 (de) Fungizide
DE59607958D1 (de) Substituierte phenyluracile
DE59609511D1 (de) Schädlingsbekämpfungsmittel
BR9609863A (pt) Fecho
DE9416907U1 (de) Streugerät
FI950718A0 (fi) Alusta
DE29514813U1 (de) Baumschere
KR960028217U (ko) 찻잔
DE9307729U1 (de) Spreizkörper

Legal Events

Date Code Title Description
8364 No opposition during term of opposition