[특허]Spread spectrum multipath processor system and method

Spread spectrum multipath processor system and method 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H04K-001/00
출원번호	US-0423513 (1995-04-17)
발명자 / 주소	Lomp Gary R. (Centerport NY)
출원인 / 주소	InterDigital Technology Corporation (Wilmington DE 02)
인용정보	피인용 횟수 : 61 인용 특허 : 0

초록 ▼

A spread-spectrum system and method for providing high capacity communications through multipath compensation. A multipath processor including a first plurality of correlators, a second plurality of correlators, a first adder, a second adder, and a selector device or a combiner device is provided for tracking a spread-spectrum signal arriving in a plurality of groups. The first plurality of correlators despreads a first group of spread-spectrum signals as a first group of despread signals which are added by the first adder to generate a first combined-despread signal. The second plurality of correlators despreads a second group of spread-spectrum signals as a second group of despread signals which are added by the second adder to generate a second combined-despread signal. The selector device selects either the first or the second combined-despread signal and outputs the selected signal. Alternatively, the combiner device combines the first and the second combined-despread signals and outputs the combined signal.

대표청구항 ▼

A multipath processor for tracking a spread-spectrum signal within a plurality of groups of spread-spectrum signals, each group having a plurality of spread-spectrum signals, said multipath processor comprising: first means for despreading a first plurality of spread-spectrum signals within a first group, to generate, respectively, a first plurality of despread signals; first means, coupled to said first despreading means, for combining the first plurality of despread signals as a first combined-despread signal; second means for despreading a second plurality of spread-spectrum signals within a second group, to generate, respectively, a second plurality of despread signals; second means, coupled to said second despreading means, for combining the second plurality of despread signals, as a second combined-despread signal; and means, coupled to said first combining means and to said second combining means, for selecting one of the first combined-despread signal and the second combined-despread signal, as an output-despread signal.

이 특허를 인용한 특허 (61)

Lomp Gary ; Ozluturk Fatih ; Silverberg Avi, Adaptive matched filter and vector correlator for a code division multiple access (CDMA) modem.
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Lomp, Gary R., Adaptive vector correlator for spread-spectrum communications.
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Gary R. Lomp, Adaptive vector correlator using weighting signals for spread-spectrum communications.
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Ozluturk, Faith M.; Lomp, Gary R.; Kowalski, John, Apparatus for adaptive reverse power control for spread-spectrum communications.
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Ozluturk,Fatih M.; Lomp,Gary R.; Kowalski,John, Apparatus for initial power control for spread-spectrum communications.
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Lomp, Gary R.; Ozluturk, Faith M.; Kowalski, John, Automatic power control system for a code division multiple access (CDMA) communications system.
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Lomp, Gary; Ozluturk, Fatih; Kowalski, John, Automatic power control system for a code division multiple access (CDMA) communications system.
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Lomp,Gary; Ozluturk,Fatih; Kowalski,John, Automatic power control system for a code division multiple access (CDMA) communications system.
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Ozluturk, Fatih M.; Lomp, Gary R., Centroid tracking for spread-spectrum communications.
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Ozluturk, Fatih M.; Jacques, Alexander M.; Lomp, Gary R.; Kowalski, John, Code division multiple access (CDMA) communication system.
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Du Reau, Philippe; Duponteil, Daniel; Yuan-Wu, Julie, Digital signal timing synchronization process.
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Gary Lomp ; Fatih Ozluturk, Efficient multipath centroid tracking circuit for a code division multiple access (CDMA) system.
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Lomp, Gary R.; Ozluturk, Faith, Efficient multipath centroid tracking circuit for a code division multiple access (CDMA) system.
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Lomp, Gary; Ozluturk, Fatih, Efficient multipath centroid tracking circuit for a code division multiple access (CDMA) system.
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McCorkle, John W., Electrically small planar UWB antenna apparatus and related system.
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Shan,Peijun, Estimation of multipath channel with sub-chip resolution.
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Ozluturk,Fatih M.; Lomp,Gary R.; Kowalski,John, Initial power control for spread-spectrum communications.
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Badke Bradley P., Interference-tolerant spread-spectrum receiver and method therefor.
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Wethington Carin, Match filter architecture based upon parallel I/O.
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Lomp,Gary R., Median weighted tracking for spread-spectrum communications.
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Ozluturk, Fatih; Lomp, Gary R.; Kowalski, John, Method and apparatus for adaptive power control for spread-spectrum communications.
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Shan, Peijun; King, Eric J., Method and apparatus for multipath parameter estimation in spread-spectrum communications systems.
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Shan, Peijun; King, Eric J., Method and apparatus for multipath signal compensation in spread-spectrum communications systems.
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Shan,Peijun, Method and apparatus for multipath signal compensation in spread-spectrum communications systems.
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Shan,Peijun; King,Eric J., Method and apparatus for multipath signal compensation in spread-spectrum communications systems.
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Ozluturk, Fatih; Lomp, Gary, Method and subscriber unit for performing power control.
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McCorkle, John W., Method and system for performing distance measuring and direction finding using ultrawide bandwidth transmissions.
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McCorkle, John W., Method and system for performing distance measuring and direction finding using ultrawide bandwidth transmissions.
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Mehrabani,Alireza Tarighat; Abbasfar,Aliazam, Method for 2D antenna rake combining in a code division multiplication access system.
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Ozluturk, Fatih M.; Lomp, Gary R.; Kowalski, John, Method for adaptive forward power control for spread-spectrum communications.
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Ozluturk, Faith M.; Lomp, Gary R.; Kowalski, John, Method for adaptive reverse power control for spread-spectrum communications.
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Ozluturk, Fatih M.; Lomp, Gary R.; Kowalski, John, Method for initial power control for spread-spectrum communications.
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Li, Huajia, Method of multi selection coherent detection and device thereof.
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Vihri채l채,Jaakko, Method of processing CDMA signal components.
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Shan, Peijun; King, Eric J., Multipath parameter estimation in spread-spectrum communications systems.
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Lomp, Gary R., Multipath processor.
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Lomp Gary ; Ozluturk Fatih ; Silverberg Avi, Pilot adaptive vector correlator.
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Kowalski John M. ; Kandala Srinivas ; Somayazulu V. Srinivasa, Pilot aided, time-varying finite impulse response, adaptive channel matching receiving system and method.
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John W. McCorkle, Planar ultra wide band antenna with integrated electronics.
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Paul Newson CA; Frank Martin van Heeswyk CA, Predictive rake receiver for CDMA mobile radio systems.
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Gouessant,Philippe; Arnaud,Thierry, Process and device for monitoring the transmission power of a mobile terminal, for example a cellular mobile telephone, in particular capable of operating according to the UMTS standard.
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Fukumasa Hidenobu,JPX ; Oishi Yasuyuki,JPX ; Nagatani Kazuo,JPX ; Hamada Hajime,JPX, Radio reception system providing improved transmission quality.
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Esmailzadeh Riaz,SEX, Random access in a mobile telecommunications system.
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Lomp,Gary; Kowalski,John; Ozluturk,Fatih; Silverberg,Avi; Regis,Robert; Luddy,Michael; Marra,Alexander; Jacques,Alexander, Rapid acquisition spreading codes for spread-spectrum communications.
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Lomp, Gary R, Setting a transmission power level for a mobile unit.
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Lomp, Gary R., Setting a transmission power level for a mobile unit.
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Lomp, Gary R., Setting a transmission power level for a mobile unit.
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Lomp, Gary R., Spread spectrum adaptive power control.
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Lomp, Gary R., Spread spectrum adaptive power control using a base station.
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Lomp, Gary; Kowalski, John; Ozluturk, Fatih; Silverberg, Avi; Regis, Robert; Luddy, Michael; Marra, Alexander; Jacques, Alexander, Spread spectrum system assigning information signals to message-code signals.
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Garodnick Joseph, Spread-spectrum communications utilizing variable throughput reduction.
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Ozluturk,Fatih M.; Lomp,Gary R., System for using rapid acquisition spreading codes for spread-spectrum communications.
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Lomp, Gary; Ozluturk, Fatih; Silverberg, Avi, Traffic lights in a code division multiple access (CDMA) modem.
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Lomp, Gary; Ozluturk, Fatih; Silverberg, Avi, Transferring voice and non-voice data.
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McCorkle, John W.; Rofheart, Martin, Ultra wide bandwidth spread-spectrum communications system.
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McCorkle, John W.; Rofheart, Martin, Ultra wide bandwidth spread-spectrum communications system.
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McCorkle,John W.; Rofheart,Martin, Ultra wide bandwidth spread-spectrum communications system.
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McCorkle, John W.; Rofheart, Martin, Ultra wide bandwidth spread-spectrum communications systems.
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Garodnick, Joseph, Variable throughput reduction communications system and method.
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Garodnick, Joseph, Variable throughput reduction communications system and method.
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Garodnick, Joseph, Variable throughput reduction spread-spectrum communications.
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