Patent ID: 7787574

Claim:
A reception terminal apparatus comprising: input means for selectively inputting a reception signal from reception signals of a plurality of types in different states of reception; defining means for defining a separate threshold value for each of a plurality of matching circuits corresponding to antennas, the plurality of matching circuits being used to match impedances of the antennas; selection means for selecting a first matching circuit out of the plurality of matching circuits corresponding to a particular antenna according to input characteristics of the reception signal, and an impedance of the particular antenna; demodulation means for demodulating the reception signal input by the input means; error detection means for detecting errors in the stream data obtained by the demodulation means; control means for determining if the number of errors as detected by the error detection means exceeds a threshold value corresponding to the first matching circuit; and switching means for switching from the first matching circuit to a second matching circuit having a higher threshold value when the number of errors exceeds the threshold value defined for the first matching circuit.