| 摘要 |
PROBLEM TO BE SOLVED: To evade a mutual interference by a terrestrial broadcasting wave and a satellite broadcasting in a terrestrial broadcasting/satellite broadcasting receiving composite tuner for splitting an input mixture signal internally. SOLUTION: A distributor 3 distributes a terrestrial wave/BS/CS wave mixture signal (mixture signal) input from an input terminal 2 into the 2-system mixture signal. A highpath filter 4 splits a BS/CS broadcasting signal from the distributed one mixture signal and outputs it to a BS/CS tuner part 6. A lowpath filter 5 splits a terrestrial broadcasting signal from the distributed other mixture signal and outputs it to a terrestrial broadcasting tuner part 7. As distributed and split immediately behind the input terminal 2, the split receiving signal is input to the BS/CS tuner part 6 and the terrestrial broadcasting tuner part 7, respectively. Accordingly, it is possible to evade an interference caused by a mutual broadcasting wave. COPYRIGHT: (C)2009,JPO&INPIT
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