Pulse or digital communications – Receivers – Interference or noise reduction
Reexamination Certificate
2007-10-12
2010-12-28
Payne, David C (Department: 2611)
Pulse or digital communications
Receivers
Interference or noise reduction
C375S229000, C375S230000, C375S231000, C375S232000, C375S233000, C375S334000, C375S346000, C455S063100, C455S114200, C455S296000, C455S501000, C708S300000
Reexamination Certificate
active
07860200
ABSTRACT:
A communications system receives a modulated signal that carries encoded communications data. An adaptive filter has an input, a plurality of non-adaptive and adaptive filter taps with weighted coefficients, and an output. The received signal is passed through the adaptive filter and around adaptive filter and a switch selects which signal to pass to demodulator based on measured output power of the adaptive filter and of the original received signal. A demodulator and decoder receive the filtered output signal and demodulate and decode the signal to obtain the communications data.
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Furman William N.
Kellerman Fred C.
Nieto John W.
Padalino Brian C.
Allen Dyer Doppelt Milbrath & Gilchrist, P.A.
Flores Leon
Harris Corporation
Payne David C
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