发明授权
US07712120B2 System and method for distributing DBS content to multiple receivers in the home over a single coax 失效
通过单个同轴电缆将DBS内容分发到家庭中的多个接收器的系统和方法

System and method for distributing DBS content to multiple receivers in the home over a single coax
摘要:
A satellite transponder switch (STS) maintains a table that maps set-top boxes (STBs) to carrier frequencies. The STS receives a first request from a first STB for a first transponder band and a second request from a second STB for a second transponder band. The STS accesses a first satellite feed and polarity based on the first request, and a second satellite feed and polarity based on the second request. The STS band-pass filters the first and second transponder bands from the first and second satellite feed and polarity, respectively. The STS frequency shifts the first transponder band to a first carrier frequency assigned to the first STB and the second transponder band to a second carrier frequency assigned to the second STB. The STS outputs a signal that comprises the frequency-shifted first and second transponder bands to the first STB and the second STB.
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