| 摘要 |
PROBLEM TO BE SOLVED: To allow the system to receive broadcast signals from plural FM multiplex broadcast stations at the same time at a comparatively lower cost and to avoid a received area from being reduced. SOLUTION: This system consists of a navigation device 10 incorporating an FM tuner 13 and an FM multiplex decoder 14 and of an audio unit 30 having an audio FM tuner 31. A control section 17 of the navigation device 10 communicates with a control section of the tuner 31 to acquire information denoting an FM broadcast station received by the tuner 31 and decides the broadcast station to be received by the built-in tuner 13 based on the information. Signals outputted from the tuners 13, 31 are given to the FM multiplex decoder 14 having plural of synchronizing circuits, in which the signals are decoded and then receive correction processing.
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