Security performance is improved by a software radio transceiver which can
exchange software which is used for demodulation. A radio communication
unit receives a radio signal. A conversion unit converts the radio signal
received by the radio communication unit into digital data. The
transceiver has a plurality of demodulating units which demodulate
sub-data. A dividing unit divides the digital data converted by the
conversion unit and distributes the sub-data to the plurality of
demodulating units. A connection unit connects results obtained after the
sub-data divided and distributed to the plurality of demodulating units
by the dividing unit was demodulated by each of the demodulating units.