Reception apparatus

Pulse or digital communications – Receivers – Interference or noise reduction

Reexamination Certificate

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Details

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.

REFERENCES:
patent: 6298050 (2001-10-01), van Heeswyk et al.
patent: 2002/0191535 (2002-12-01), Sugiyama et al.
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patent: 2001-36442 (2001-02-01), None
patent: 2001-44901 (2001-02-01), None
patent: 2001-251233 (2001-09-01), None
patent: 2002-44051 (2002-02-01), None
patent: 2003-60604 (2003-02-01), None
International Search Report corresponding to application No. PCT/JP02/11826 dated Feb. 25, 2003.

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