[특허]MSK spread-spectrum receiver which allows CDMA operations

MSK spread-spectrum receiver which allows CDMA operations 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H04B-015/00 H04K-001/00 H04L-027/30
출원번호	US-0324478 (1994-10-17)
발명자 / 주소	Omura Jimmy K. (Cupertino CA) Yang Paul T. (Sunnyvale CA) Khachatrian Gurgen H. (Yerevan AMX) Nikogossian Karen M. (Yerevan AMX) Hovakimian Karen S. (Yerevan AMX) Vartapetian Armen L. (Yerevan AMX)
출원인 / 주소	Cylink Corporation (Sunnyvale CA 02)
인용정보	피인용 횟수 : 7 인용 특허 : 20

초록 ▼

A method for demodulating a received spread-spectrum signal using a minimum-shift-keyed (MSK) receiver. Using the method, an in-phase-component signal and a quadrature-phase-component signal are generated from a received spread-spectrum signal. The in-phase-component signal and the quadrature-phase-

대표청구항 ▼

A method for demodulating a received-spread-spectrum signal using a minimum-shift-keyed (MSK) receiver, comprising the steps of: generating an in-phase-component signal from the received-spread-spectrum signal; generating a quadrature-phase-component signal from the received-spread-spectrum signal; processing the in-phase-component signal using sindoubS(n,C) to generate a first processed signal; processing the quadrature-phase-component signal using sindoubS(n,C) to generate a second processed signal; processing the in-phase-component signal using cosdoubS(n,C) to generate a third processed signal; processing the quadrature-phase-component signal using cosdoubS(n,C) to generate a fourth processed signal; combining the first processed signal with the fourth processed signal to generate a first combined signal; combining an inverse of the first processed signal with the fourth processed signal to generate a second combined signal; combining the second processed signal with the third processed signal to generate a third combined signal; combining an inverse of the second processed signal with the third processed signal to generate a fourth combined signal; and deciding from the first combined signal, the second combined signal, the third combined signal and the fourth combined signal, an estimate of data of the received-spread-spectrum signal.

이 특허에 인용된 특허 (20)

Mosley, Jr., William H.; Andren, Carl F., Coherent spread spectrum pseudonoise tracking loop.
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Cooper George R. (West Lafayette IN) Nettleton Raymond W. (West Lafayette IN) Grybos David P. (West Lafayette IN), Demodulator unit for spread spectrum apparatus utilized in a cellular mobile communication system.
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Schiff Leonard N. (Mercer County NJ), Fast acquisition burst mode spread spectrum communications system with pilot carrier.
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Sweeney Dennis A. (St. Petersburg FL) Sanders David E. (St. Petersburg FL), Method and apparatus for baseband generation of a spread spectrum reference signal for use in an LMS adaptive array proc.
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Mosley William H. (St. Petersburg FL) Sanders David E. (St. Petersburg FL), Method and apparatus for despreading a spread spectrum signal at baseband.
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Schilling Donald L. (Sands Point NY), Phased array spread spectrum system and method.
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Frazier ; Jr. William R. (Indialantic FL), Programmable time invariant coherent spread symbol correlator.
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Kerr Leo A. (Woodstock MD), Receiver for a spread spectrum communication system having a time-multiplexed convolver.
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Beier Wolfgang (Weil der Stadt DEX), Receiver for bandspread signals.
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Andren Carl F. (Indiatlantic FL) Mosley ; Jr. William H. (St. Petersburg FL), Simplified transversal correlator for MSK and MSK related waveforms.
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Cantwell Robert H. (Sudbury MA), Spread spection signal detector.
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Cobb Raymond F. (Melbourne Beach FL) Pelchat M. Guy (Indialantic FL), Spread spectrum code tracking loop.
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Nicolas Michel J. R. (Paris FRX) Sebilet Bruno R. (Suresnes FRX), Spread spectrum coding method and apparatus.
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Belcher Donald K. (West Melbourne FL) Bradley W. Scott (Palm Bay FL) Gimlin Darrell R. (Melbourne Beach FL) Klaasen James P. (Palm Bay FL), Spread spectrum communication system employing composite spreading codes with matched filter demodulator.
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Roeder Allan W. (Whitesboro NY), Spread spectrum correlation receiver.
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Dixon Robert C. (Palmer Lake CO) Vanderpool Jeffrey S. (Colorado Springs CO), Spread spectrum correlator.
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Andren Carl F. (Indialantic FL) Olaker David A. (Palm Bay FL), Spread spectrum correlator for recovering CCSK data from a PN spread MSK waveform.
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Gilhousen Klein S. (San Diego CA) Jacobs Irwin M. (La Jolla CA) Weaver ; Jr. Lindsay A. (San Diego CA), Spread spectrum multiple access communication system using satellite or terrestrial repeaters.
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Chiu Chen-Shu (Placentia CA), Synchronization preamble correlation detector and frequency estimator.
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Gilhousen Klein S. (San Diego CA) Jacobs Irwin M. (La Jolla CA) Padovani Roberto (San Diego CA) Weaver ; Jr. Lindsay A. (San Diego CA) Wheatley ; III Charles E. (Del Mar CA) Viterbi Andrew J. (La Jol, System and method for generating signal waveforms in a CDMA cellular telephone system.
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이 특허를 인용한 특허 (7)

Shou Guoliang,JPX ; Zhou Changming,JPX ; Zhou Xuping,JPX ; Yamamoto Makoto,JPX ; Takatori Sunao,JPX ; Sawahashi Mamoru,JPX ; Adachi Fumiyuki,JPX, Acquisition scheme and receiver for an asynchronous DS-CDMA cellular communication system.
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Jones William W. ; Luecke James R., Cyclic code phase multiple access for inbound satellite communications.
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Bullock, Scott R.; Smith, Scott D.; Bartholomew, David B., Digital wireless phone/modem jack capable of communications over the power lines using differential binary phase shift keying (DBPSK).
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Omura Jimmy K. ; Yang Paul T. ; Khachatrian Gurgen H.,AMX ; Nikogossian Karen M.,AMX ; Hovakimian Karen S.,AMX ; Vartapetian Armen L.,AMX, MSK spread-spectrum receiver which allows CDMA operations.
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Bruckert Eugene J. ; Ling Fuyun, Method for determining weighting coefficients in a CDMA radio receiver.
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Naruse Tetsuya (Chiba JPX) Sugita Takehiro (Kanagawa JPX) Yamaura Tomoya (Tokyo JPX), Pulse-width modulating device.
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Le Roy Alain,FRX, Transmission process having spectrum spread phase differential modulation adn demodulation using orthogonal pseudorando.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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MSK spread-spectrum receiver which allows CDMA operations 원문보기