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Digital adaptive transversal filter for spread spectrum receivers

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • H04L-027/30
출원번호 US-0957281 (1992-10-06)
발명자 / 주소
  • Dimos George (Cambridge MA) Upadhyay Triveni N. (Burlington MA)
출원인 / 주소
  • Mayflower Communications Company, Inc. (Reading MA 02)
인용정보 피인용 횟수 : 58  인용 특허 : 0

초록

A digital adaptive transversal filter includes an interface circuit for regulating and digitizing analog input signals, which comprise of multiple spread-spectrum signals, additive thermal noise and additive multiple narrowband interferers, to provide multi-bit digital input signals. A digital finit

대표청구항

A digital adaptive transversal filter for processing a composite analog input signal comprising multiple direct-sequence spread-spectrum signals, additive thermal noise, and additive multiple narrowband interferers, and for providing a digital output signal to carrier/code removal means, said adapti

이 특허를 인용한 특허 (58)

  1. Gaus, Jr., Richard C.; Al-Dhahir, Naofal, Adaptive digital beamformer coefficient processor for satellite signal interference reduction.
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  3. Kim,Seong Rag; Choi,Jinho; Jung,Young Ho; Hong,Seung Chul; Lee,Yong Hoon, Adaptive rake receiving apparatus constrained with at least one constraint for use in mobile communication system and method therefor.
  4. Hoffberg, Steven M.; Hoffberg-Borghesani, Linda I., Alarm system controller and a method for controlling an alarm system.
  5. Rajappan, Gowri Shankar; Sivasankaran, Ravi; Cafarella, John, Antijam filter system and method for high fidelity high data rate wireless communication.
  6. Kim, Seong-Rag; Jeong, Young-Gyun; Choi, In-Kyeong; Lee, Seo-Young, Apparatus and method for adaptive CDMA detection based on constrained minimum mean squared error criterion.
  7. Naylor, James E.; Sorber, Scott O., Apparatus for providing anti-jamming capability to legacy GPS receivers.
  8. Zhodzishsky Mark I.,RUX ; Vorobiev Michail Y.,RUX ; Prasolov Victor A.,RUX ; Ashjaee Javad, Apparatuses and methods of suppressing a narrow-band interference with a compensator and adjustment loops.
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  28. Stojanovic, Vladimir M.; Ho, Andrew C.; Bessios, Anthony; Chen, Fred F.; Alon, Elad; Horowitz, Mark A., High speed signaling system with adaptive transmit pre-emphasis.
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  46. Mo, Sang Hyun, Receiver for real time locating system and method of receiving signal in real time locating system.
  47. Fifield, Robert, Receiver having an adaptive filter and method of optimizing the filter.
  48. Hebron Yoav ; Raghavan Sree A. ; Gurantz Itzhak, Receiver of wideband digital signal in the presence of a narrow band interfering signal.
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  50. Cetin, Ediz; Kale, Izzet; Morling, Richard Charles Spicer; Dempster, Andrew Graham, Satellite radio navigation receiver.
  51. Mitelman, Alexander; Normark, Per-Ludvig; Stahlberg, Christian, Software-based spread spectrum signal processing.
  52. Kochi Tetsuya,JPX ; Tanaka Hiroaki,JPX, Spread-spectrum communication device.
  53. Dimos George (Cambridge MA) Upadhyay Triveni N. (Concord MA), Standalone canceller of narrow band interference for spread spectrum receivers.
  54. Liberti, Jr., Joseph Charles; Moshavi, Shimon; Zablocky, Paul Gerald, Successive interference cancellation.
  55. Alexander, Steven B., System and method for GPS acquisition using advanced tight coupling.
  56. Maeda Shigeki,JPX ; Kaneko Ichiro,JPX, Transversal filter capable of processing an input signal high data rate.
  57. Maeda Shigeki,JPX ; Kaneko Ichiro,JPX, Transversal filter capable of processing an input signal of high data rate.
  58. Laudel, Kennan; Kang, Inchul, Variable clock rate correlation circuit and method of operation.
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