Telecommunications – Transmitter and receiver at separate stations – Plural transmitters or receivers
Reexamination Certificate
2007-10-09
2007-10-09
Urban, Edward F. (Department: 2618)
Telecommunications
Transmitter and receiver at separate stations
Plural transmitters or receivers
C455S127200, C455S245100, C375S296000, C375S345000
Reexamination Certificate
active
10704653
ABSTRACT:
Channel fluctuation values on propagation paths of modulated signals transmitted from a plurality of antennas are estimated, an eigenvalue of a channel fluctuation matrix created with the above-mentioned channel fluctuation values as elements is found in order to relate antenna received signals to modulated signals, and using that eigenvalue, receiving antenna selection, combining of modulated signals, and weighting processing on soft decision decoded values, are performed, and modulated signals are demodulated. By this means, it is possible to perform demodulation processing based on the effective reception power of a modulated signal (that is to say, the essential reception power, of the reception power obtained by a receiving apparatus, that can be effectively used when demodulating a modulated signal), enabling the precision of demodulation of modulated signals to be improved.
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Abe Katsuaki
Kobayashi Kiyotaka
Matsuoka Akihiko
Murakami Yutaka
Orihashi Masayuki
Greenblum & Bernstein P.L.C.
Jackson Blane J.
Matsushita Electric - Industrial Co., Ltd.
Urban Edward F.
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