Frequency calibration device and method for programmable oscillator
    4.
    发明授权
    Frequency calibration device and method for programmable oscillator 有权
    可编程振荡器的频率校准装置和方法

    公开(公告)号:US08907730B2

    公开(公告)日:2014-12-09

    申请号:US13617514

    申请日:2012-09-14

    IPC分类号: G06F1/12 H03L7/06 H03L7/08

    摘要: A frequency calibration method for a programmable oscillator includes the steps of: counting an oversampling number of an oversampling signal and estimating an accumulated bit number of a USB data stream according to the oversampling signal; calculating a difference between the oversampling number and M times of the accumulated bit number when the accumulated bit number is larger than a predetermined value; and determining a frequency calibration step of the oversampling signal according to the difference. The present invention further provides a frequency calibration device for a programmable oscillator.

    摘要翻译: 可编程振荡器的频率校准方法包括以下步骤:对过采样信号的过采样数进行计数,并根据过采样信号估计USB数据流的累积比特数; 当所述累积比特数大于预定值时,计算所述累加比特数的所述过采样数和M次之间的差; 以及根据所述差异确定过采样信号的频率校准步骤。 本发明还提供了一种用于可编程振荡器的频率校准装置。

    Frequency calibration device and method for programmable oscillator
    5.
    发明授权
    Frequency calibration device and method for programmable oscillator 有权
    可编程振荡器的频率校准装置和方法

    公开(公告)号:US08283983B2

    公开(公告)日:2012-10-09

    申请号:US12948265

    申请日:2010-11-17

    IPC分类号: H03L7/06 G06F1/04

    CPC分类号: H03L7/0807 H03L7/099

    摘要: A frequency calibration method for a programmable oscillator includes the steps of: counting an oversampling number of an oversampling signal and estimating an accumulated bit number of a USB data stream according to the oversampling signal; calculating a difference between the oversampling number and M times of the accumulated bit number when the accumulated bit number is larger than or equal to a predetermined value; and determining a frequency calibration step of the oversampling signal according to the difference. The present invention further provides a frequency calibration device for a programmable oscillator.

    摘要翻译: 可编程振荡器的频率校准方法包括以下步骤:对过采样信号的过采样数进行计数,并根据过采样信号估计USB数据流的累积比特数; 当所述累积比特数大于或等于预定值时,计算所述累加比特数的所述过采样数和M倍之间的差; 以及根据所述差异确定过采样信号的频率校准步骤。 本发明还提供了一种用于可编程振荡器的频率校准装置。