| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a user with optimum received signals by switching between phase diversity reception and two-station reception at optimum timing. <P>SOLUTION: A first receiving unit 21 converts a signal received by a first antenna 11 to an IQ signal as a first received signal to output to a composition unit 31. A second receiving unit 22 converts a signal received by a second antenna 12 to an IQ signal as a second received signal to output to a composition unit 31. The composition unit 31 generates an IQ signal after composition (composite IQ signal) by correcting and summing phase component and amplitude component of each of the first IQ signal output from the first receiving unit 21 and the second IQ signal output from the second receiving unit 22 to output to a demodulation unit 41. The demodulation unit 41 converts the composite IQ signal to an audio signal to output to a speaker unit 51. The speaker unit 51 provides a user with audio information based on the audio signal. A control unit 61 monitors an operation state of the composition unit 31 and controls the operation of the composition unit 31. <P>COPYRIGHT: (C)2012,JPO&INPIT |
