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    • 5. 发明授权
    • Receiving apparatus and receiving method
    • 接收装置和接收方法
    • US08346098B2
    • 2013-01-01
    • US12691153
    • 2010-01-21
    • Zhishan Feng
    • Zhishan Feng
    • H04B10/00
    • H04B10/69
    • A receiving apparatus is provided, which includes: a photoelectric detector (PD), adapted to generate current signals according to optical signals projected on the PD and digitally modulated at a high or low rate; a first switch, adapted to switch to output the high-rate or low-rate current signals; a first transimpedance amplifier (TIA), adapted to amplify the high-rate current signals into high-rate voltage signals; and a second TIA, adapted to amplify the received low-rate current signals into low-rate voltage signals. Therefore, in the present invention, high-rate and low-rate receiving paths are completely separated. This provides signals with good quality and avoids signal deterioration; and switching between the high-rate and low-rate receiving paths simplifies the structure and lowers costs.
    • 提供了一种接收装置,其包括:光电检测器(PD),适于根据投影在PD上的光信号并以高或低速率数字调制产生电流信号; 第一开关,适于切换以输出高速率或低速率电流信号; 第一跨阻抗放大器(TIA),适于将高速率电流信号放大为高速率电压信号; 以及第二TIA,适于将接收的低速率电流信号放大为低速率电压信号。 因此,在本发明中,高速率和低速率的接收路径完全分离。 这提供了质量好的信号,避免信号恶化; 并且高速率和低速率接收路径之间的切换简化了结构并降低了成本。