| 摘要 |
PURPOSE: A car audio system is provided to improve convenience and hear various information by additionally installing a tuner and a TV voice detector for receiving only a voice band of a TV broadcasting in the car audio system, adding a TV mode selection function and a channel selection function in a panel control switch unit, and selecting and hearing the TV broadcasting as well as a radio broadcasting through the car audio system. CONSTITUTION: A TV antenna(10) receives an RF(Radio Frequency) broadcasting signal with a TV band from air. A TV tuner unit(11) tunes the TV broadcasting signal received through the TV antenna(10). A TV voice band detector(12) detects only voice signal among various TV broadcasting signals outputted from the TV tuner unit(11) and outputs the detected voice signal to an acoustic adjusting unit(4). A TV band and channel selection function is added in a panel control switch unit(9).
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