Pulse or digital communications – Receivers – Interference or noise reduction
Reexamination Certificate
2007-09-04
2007-09-04
Payne, David C. (Department: 2611)
Pulse or digital communications
Receivers
Interference or noise reduction
C375S148000, C455S342000
Reexamination Certificate
active
10486894
ABSTRACT:
A reception apparatus includes a plurality of antennas for receiving modulation signals of channels in the same frequency band, a received signal strength intensity estimation unit for estimating the reception received signal strength intensity of each reception signal, transmission path fluctuation estimation units for estimating a transmission path fluctuation of each channel of the reception signal, phase difference estimation units for calculating a phase difference of the transmission path fluctuation estimation signal of a predetermined channel of each antenna and outputting it as a phase difference signal, and a signal selection unit for selecting and outputting a reception quadrate baseband signal for isolating a signal of each channel from the reception signals and a transmission path fluctuation estimation signal of each channel. Thus, by isolating and demodulating a plurality of multiplexed modulated signals received, it is possible to improve the data transmission rate.
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International Search Report corresponding to application No. PCT/JP02/11826 dated Feb. 25, 2003.
Matsuoka Akihiko
Murakami Yutaka
Orihashi Masayuki
Guarino Rahel
Matsushita Electric - Industrial Co., Ltd.
Payne David C.
RatnerPrestia
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