| 摘要 |
PROBLEM TO BE SOLVED: To reduce production of a large correction error resulting from correction of an FM demodulation signal with an interpolation system correction circuit on the basis of a correction period signal shorter than an actual noise production period. SOLUTION: A noise detection means 21 detects a noise production period from an FM demodulation signal output of an FM demodulation circuit 1 to obtain a correction period signal, and when a correction system discrimination circuit 22 discriminates that the correction period signal is shorter than an actual noise production period, a switch circuit 24 selects an output of a pre-value holding system correction circuit 14 and a stereo demodulation circuit 5 converts the selected output into an audio signal. COPYRIGHT: (C)2004,JPO
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