DIGITAL PHASE-LOCKED LOOP APPARATUS USING FREQUENCY SHIFT KEYING AND METHOD OF CONTROLLING THE SAME
    1.
    发明申请
    DIGITAL PHASE-LOCKED LOOP APPARATUS USING FREQUENCY SHIFT KEYING AND METHOD OF CONTROLLING THE SAME 失效
    使用频移键控的数字相位锁定装置及其控制方法

    公开(公告)号:US20130043920A1

    公开(公告)日:2013-02-21

    申请号:US13589629

    申请日:2012-08-20

    IPC分类号: H03L7/093

    CPC分类号: H03L7/0992

    摘要: A digital phase-locked loop apparatus using FSK includes a PFD detecting phase differences between a reference clock and a frequency-divided signal, and a first adder for generating first digital control codes by adding first digital codes, second digital codes, and channel frequency codes including channel information to each other, the first digital codes being converted from time differences between first and second pulses. The apparatus further includes a digital filter correcting errors of the first digital control codes to generate second digital control codes, a DCO for varying an oscillating frequency in accordance with a digital tuning word based on the second digital control codes, and a dual modulus division unit dividing the oscillating frequency into a frequency-divided signal.

    摘要翻译: 使用FSK的数字锁相环装置包括PFD检测参考时钟和分频信号之间的相位差,以及第一加法器,用于通过将第一数字码,第二数字码和频道频率码相加来产生第一数字控制码 包括彼此的信道信息,所述第一数字码从第一和第二脉冲之间的时间差转换。 该装置还包括校正第一数字控制码的误差以产生第二数字控制码的数字滤波器,用于根据第二数字控制码根据数字调谐字改变振荡频率的DCO,以及双模分割单元 将振荡频率分频成分频信号。

    DETECTION AND AVOIDANCE APPARATUS AND METHOD FOR USE IN UWB RECEIVER
    2.
    发明申请
    DETECTION AND AVOIDANCE APPARATUS AND METHOD FOR USE IN UWB RECEIVER 有权
    用于UWB接收机的检测和避免设备及方法

    公开(公告)号:US20130070812A1

    公开(公告)日:2013-03-21

    申请号:US13598670

    申请日:2012-08-30

    申请人: Cheol-ho SHIN

    发明人: Cheol-ho SHIN

    IPC分类号: H04B1/7097

    摘要: A DAA (Detection And Avoidance) apparatus for use in a UWB receiver includes a frequency offset unit for adding a preset frequency offset to a UWB signal including a victim signal and an FFT unit for performing a fast-Fourier-transformation on the UWB signal with the frequency offset added thereto. The DAA apparatus further includes a DAA unit for detecting a victim signal from the fast-Fourier-transformed UWB signal and, when reception power of the victim signal is higher than a predetermined reference power level, changing a communication channel for the UWB signal to avoid interference.

    摘要翻译: 用于UWB接收机的DAA(检测和避免)装置包括用于将预设频率偏移量加到包括受害信号的UWB信号的频率偏移单元和用于对UWB信号执行快速傅里叶变换的FFT单元, 添加频率偏移。 DAA装置还包括用于从快速傅里叶变换的UWB信号中检测受害者信号的DAA单元,并且当受害信号的接收功率高于预定参考功率电平时,改变UWB信号的通信信道以避免 干扰。