| 摘要 |
PROBLEM TO BE SOLVED: To prevent the C/N of an input signal to a set-top box from being deteriorated even when a home terminal and the step-top box are connected to this booster. SOLUTION: The booster is provided with a 1st branching filter 2 that branches an outgoing signal from a signal received by an input terminal 1, a 2nd branching filter 5 that branches a low frequency analog signal and a high frequency digital signal from the outgoing signal branched by the 1st branching filter 2, provides an output of the analog signal to an analog terminal 3, and provides an output of the digital signal to an outgoing amplifier 4, and a 3rd branching filter 8 that provides an output of the outgoing digital signal amplified by the outgoing amplifier 4 to a digital terminal 6, provides an output of an incoming digital signal received by the digital terminal 6 to an incoming amplifier 7, and provides an output of the incoming digital signal amplified by the incoming amplifier 7 to the input terminal 1 via the 1st branching filter 2.
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