发明名称 ANTENNA SWITCHING DEVICE AND METHOD THEREOF
摘要 An antenna switch apparatus and a switching method thereof including an antenna-input for cable broadcasting and an antenna-input for terrestrial broadcasting and satellite broadcasting, always receiving an OOB signal, and freely selecting one of a cable broadcasting channel and a terrestrial broadcasting channel or a satellite broadcasting channel is provided. In the antenna switch apparatus and the switching method, the terrestrial broadcasting signal is input to a select means, the cable broadcasting signal is split by a split means and the signals are input to an OOB tuner and the select means, then a signal selected by the select means is input to an A/D tuner. With this arrangement, one of the signal of the cable broadcasting channel and the terrestrial broadcasting channel or the satellite broadcasting is selected while keep receiving the OOB signal. <IMAGE>
申请公布号 KR20050016873(A) 申请公布日期 2005.02.21
申请号 KR20047018060 申请日期 2004.11.09
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分类号 H04B1/18;H04B1/44;H04N5/44;H04N5/46;H04N7/10;(IPC1-7):H04N7/16 主分类号 H04B1/18
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