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    • 2. 再颁专利
    • Jitter measuring method and device
    • 抖动测量方法和装置
    • USRE43761E1
    • 2012-10-23
    • US12727113
    • 2010-03-18
    • Ming-Yang ChaoSzu-Shan Lo
    • Ming-Yang ChaoSzu-Shan Lo
    • H04B17/00
    • G01R29/26H04L1/205
    • A jitter measuring method and device, which is capable of measuring jitters in serial digital signal without high-frequency reference clock. The jitter measuring device comprises a rough length measuring unit for measuring rough length for each pulse of the serial digital signal according to a reference clock, and a phase error measuring unit for measuring the phase errors between the edges of the reference clock and the serial digital signal by multi-phase clocks, which are generated by a multi-phase generator according to the reference clock. The jitter measuring device computes the precise length according to the rough length and the phase error, and measures the jitters from the precise length by filters.
    • 一种抖动测量方法和装置,能够测量串行数字信号中的抖动,无需高频参考时钟。 抖动测量装置包括:粗长度测量单元,用于根据参考时钟测量串行数字信号的每个脉冲的粗略长度;以及相位误差测量单元,用于测量参考时钟的边缘与串行数字信号的边沿之间的相位误差 信号由多相位时钟产生,由多相发生器根据参考时钟产生。 抖动测量装置根据粗长度和相位误差计算精确长度,并通过滤波器从精确长度测量抖动。
    • 10. 再颁专利
    • Jitter measuring method and device
    • 抖动测量方法和装置
    • USRE41195E1
    • 2010-04-06
    • US11599634
    • 2006-11-15
    • Ming-Yang ChaoSzu-Shan Lo
    • Ming-Yang ChaoSzu-Shan Lo
    • H04B17/00
    • G01R29/26H04L1/205
    • A jitter measuring method and device, which is capable of measuring jitters in serial digital signal without high-frequency reference clock. The jitter measuring device comprises a rough length measuring unit for measuring rough length for each pulse of the serial digital signal according to a reference clock, and a phase error measuring unit for measuring the phase errors between the edges of the reference clock and the serial digital signal by multi-phase clocks, which are generated by a multi-phase generator according to the reference clock. The jitter measuring device computes the precise length according to the rough length and the phase error, and measures the jitters from the precise length by filters.
    • 一种抖动测量方法和装置,能够测量串行数字信号中的抖动,无需高频参考时钟。 抖动测量装置包括:粗长度测量单元,用于根据参考时钟测量串行数字信号的每个脉冲的粗略长度;以及相位误差测量单元,用于测量参考时钟的边缘与串行数字信号的边沿之间的相位误差 信号由多相位时钟产生,由多相发生器根据参考时钟产生。 抖动测量装置根据粗长度和相位误差计算精确长度,并通过滤波器从精确长度测量抖动。