发明名称 Diversity reception device outputting maximized C/N ratio of synthesized signal
摘要 A diversity reception device includes a plurality of antennas. A plurality of receiver circuits are connected to the corresponding antennas. An adder adds the received signals output from the receiver circuits. Phase shifters allow the received signals to be input into the adder in phase with each other. A level comparator unit compares the levels of the received signals output from the receiver circuits. A level variable unit is interposed between each of the receiver circuits and the adder, and is controlled by the level comparator unit. Each of the received signals other than the received signal having the maximum level is relatively attenuated by the corresponding level variable unit in accordance with the difference of the level of the received signal from the maximum level before being input into the adder.
申请公布号 US2004190658(A1) 申请公布日期 2004.09.30
申请号 US20040805851 申请日期 2004.03.22
申请人 ALPS ELECTRIC CO., LTD. 发明人 OHTAKI YUKIO;OYAMA TORU
分类号 H04B7/08;(IPC1-7):H04L1/02 主分类号 H04B7/08
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