| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To simultaneously use at least three radio systems by performing appropriate channel selection in a radio system which performs communication using a plurality of channels. <P>SOLUTION: A bluetooth hopping pattern setting part 117 sets a selection order of channels in which mutual modulation distortion to be generated by a signal of a W-CDMA communication system and a signal of each channel of bluetooth does not interfere with a reception frequency of a GPS. A bluetooth frequency synthesizer part 113 generates a local oscillation signal for sequentially selecting channels of bluetooth in the selection order set by the bluetooth hopping pattern setting part 117, and for performing frequency conversion of the channels into frequencies of the selected channels. A bluetooth RF receiving part 114 performs the frequency conversion of a received signal from a high frequency signal to a base band signal by the local oscillation signal. A bluetooth RF transmitting part 115 performs the frequency conversion of a transmitted signal from the base band signal to the high frequency signal by the local oscillation signal. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
