发明名称 Diversity receiving apparatus capable of preventing reduction of C/N ratio
摘要 A diversity receiving apparatus comprises a plurality of antennas, a plurality of receiving circuits connected to the plurality of antennas, respectively, an adding unit for adding reception signals output from the respective receiving circuits, and a plurality phase shifting units for making phases of the reception signals to be input into the adding unit equal. A level comparing unit, for comparing the levels of the reception signals output from the respective receiving circuits, is provided. Phases of reception signals other than a maximum-level reception signal are controlled so as to have the same phase as the phase of the maximum-level reception signal, and the phase-controlled signals are input into the adding unit.
申请公布号 US6961394(B2) 申请公布日期 2005.11.01
申请号 US20040811648 申请日期 2004.03.29
申请人 ALPS ELECTRIC CO., LTD. 发明人 OHTAKI YUKIO;OYAMA TORU
分类号 H04J11/00;H04B7/08;(IPC1-7):H04L27/06;H04B17/02 主分类号 H04J11/00
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