利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

1 条记录 (耗时 0.019 秒)

    DIGITAL PHASE FREQUENCY DETECTOR, DIGITAL PHASE LOCKED LOOP INCLUDING THE SAME AND METHOD OF DETECTING PHASE AND FREQUENCY OF OUTPUT SIGNAL
    1.
    发明申请
    DIGITAL PHASE FREQUENCY DETECTOR, DIGITAL PHASE LOCKED LOOP INCLUDING THE SAME AND METHOD OF DETECTING PHASE AND FREQUENCY OF OUTPUT SIGNAL 有权
    数字相位频率检测器，数字相位锁定环路及其相位检测和输出信号频率检测方法

    公开(公告)号：US20120183104A1

    公开(公告)日：2012-07-19

    申请号：US13315476

    申请日：2011-12-09

    申请人： JONG-PHIL HONG ,  Ji-Hyun Kim ,  Jae-Jin Park

    发明人： JONG-PHIL HONG ,  Ji-Hyun Kim ,  Jae-Jin Park

    IPC分类号： H04L27/06

    CPC分类号： H03L7/113 ,  H03L7/085 ,  H03L7/1077

    摘要： A digital phase frequency detector includes a detection unit, a reset unit and a phase comparison unit. The detection unit detects edges of a reference signal and a feedback input signal to generate a reference edge signal and a feedback edge signal. The reset unit generates a reset signal resetting the detection unit based upon the reference edge signal and the feedback edge signal. The phase comparison unit generates first and second phase comparison signals based upon the reference edge signal and the feedback edge signal. The phase comparison unit includes a first flip-flop generating a first comparison signal based upon the reference edge signal and the feedback edge signal, a second flip-flop generating a second comparison signal based upon the reference edge signal and the feedback edge signal, and a latch block latching the first and second comparison signals to generate the first and second phase comparison signals.

    摘要翻译： 数字相位频率检测器包括检测单元，复位单元和相位比较单元。 检测单元检测参考信号和反馈输入信号的边沿以产生参考边缘信号和反馈边缘信号。 复位单元基于参考边沿信号和反馈边沿信号产生复位检测单元的复位信号。 相位比较单元基于参考边缘信号和反馈边缘信号产生第一和第二相位比较信号。 相位比较单元包括基于参考边缘信号和反馈边缘信号产生第一比较信号的第一触发器，基于参考边缘信号和反馈边缘信号产生第二比较信号的第二触发器，以及 锁存块锁存第一和第二比较信号以产生第一和第二相位比较信号。