利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

3 条记录 (耗时 0.018 秒)

    MULTIPLE MODULATED SPUR CANCELLATION APPARATUS
    1.
    发明申请
    MULTIPLE MODULATED SPUR CANCELLATION APPARATUS 审中-公开

    公开(公告)号：US20170359136A1

    公开(公告)日：2017-12-14

    申请号：US15179211

    申请日：2016-06-10

    申请人： Krzysztof Dufrene ,  Ram S. Kanumalli ,  Silvester Sadjina ,  Andreas Gebhard

    发明人： Krzysztof Dufrene ,  Ram S. Kanumalli ,  Silvester Sadjina ,  Andreas Gebhard

    IPC分类号： H04J1/12 ,  H04L5/00

    摘要： An apparatus of a wireless device can include baseband processing circuitry configured to generate a digitized downconverted signal based on a received radio frequency (RF) signal. The apparatus can also include estimation circuitry configured to detect a blocker signal in the downconverted signal, the blocker signal having power that exceeds a pre-determined threshold, and map the detected blocker signal to a plurality of harmonic frequencies associated with two or more carrier frequencies. The apparatus can include reference signal generation circuitry configured to generate a reference signal based on the plurality of harmonic frequencies and the received RF signal. The apparatus can include cancellation circuitry configured to apply a pre-processed reference signal (based on the reference signal) to the digitized downconverted signal to remove distortion associated with the detected blocker signal. The digitized downconverted signal is a baseband signal or an intermediate frequency (IF) signal.