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    Apparatus and methods for detection of interface in radio-frequency devices
    1.
    发明授权
    Apparatus and methods for detection of interface in radio-frequency devices 有权
    用于检测射频设备中接口的装置和方法

    公开(公告)号：US08406719B1

    公开(公告)日：2013-03-26

    申请号：US13472066

    申请日：2012-05-15

    申请人： Sek Kin Neng ,  Yungping Hsu ,  Tsunglun Yu ,  Ming Ta Lin ,  Naveen-Kumar Arani

    发明人： Sek Kin Neng ,  Yungping Hsu ,  Tsunglun Yu ,  Ming Ta Lin ,  Naveen-Kumar Arani

    IPC分类号： H04B17/00

    CPC分类号： H03G3/3068 ,  H04B17/318

    摘要： A receiver is provided and includes a first amplifier configured to amplify, based on a first gain, a radio frequency signal to generate a first amplified signal. The radio frequency signal is received by the receiver on a first channel. A second amplifier generates, based on the first amplified signal and a second gain, a second amplified signal. An output circuit generates a baseband signal based on the second amplified signal. A first detection circuit compares the baseband signal to (i) a first threshold in response to the first gain being at a first level, and (ii) a second threshold in response to the first gain being at a second level. The first detection circuit generates a first detection signal in response to the comparison. A controller, in response to the first detection signal, (i) adjusts the second gain, or (ii) changes the receiver from the first channel.

    摘要翻译： 提供接收机，并且包括第一放大器，被配置为基于第一增益来放大射频信号以产生第一放大信号。 射频信号由接收机在第一信道上接收。 第二放大器基于第一放大信号和第二增益产生第二放大信号。 输出电路基于第二放大信号产生基带信号。 第一检测电路响应于第一增益处于第一电平将基带信号与（i）第一阈值进行比较，以及（ii）响应于第一增益处于第二电平的第二阈值。 第一检测电路响应于比较产生第一检测信号。 控制器响应于第一检测信号，（i）调整第二增益，或（ii）从第一通道改变接收器。