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公开(公告)号：US07957923B2
公开(公告)日：2011-06-07
申请号：US12117176
申请日：2008-05-08
CPC分类号： G01R31/31709
摘要： The device for jitter measurement and a method thereof are provided. The device for jitter measure includes a signal retrieving module, a signal amplifying module, an edge detecting module, and a time-to-digital converting module. The signal retrieving module receives a signal-under-test, and retrieves a first pulse signal having a pulse width equal to a period of the signal-under-test. The signal amplifying module amplifies the pulse width of the first pulse signal and thereby generates a second pulse signal. The edge detecting module detects a rising edge and a falling edge of the second pulse signal, and generates a first indication signal and a second indication signal according to the respective detected results. The time-to-digital converting module converts the pulse width of the second pulse signal existed in time domain to a digital signal according to the first indication signal and the second indication signal.
摘要翻译： 提供抖动测量装置及其方法。 用于抖动测量的装置包括信号检索模块，信号放大模块，边缘检测模块和时间 - 数字转换模块。 信号检索模块接收待测信号，并检索具有等于被测信号的周期的脉冲宽度的第一脉冲信号。 信号放大模块放大第一脉冲信号的脉冲宽度，从而产生第二脉冲信号。 边缘检测模块检测第二脉冲信号的上升沿和下降沿，并根据各个检测结果生成第一指示信号和第二指示信号。 时间 - 数字转换模块根据第一指示信号和第二指示信号将时域中存在的第二脉冲信号的脉冲宽度转换为数字信号。
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公开(公告)号：US20090112499A1
公开(公告)日：2009-04-30
申请号：US12117176
申请日：2008-05-08
IPC分类号： G01R29/26
CPC分类号： G01R31/31709
摘要： The device for jitter measurement and a method thereof are provided. The device for jitter measure includes a signal retrieving module, a signal amplifying module, an edge detecting module, and a time-to-digital converting module. The signal retrieving module receives a signal-under-test, and retrieves a first pulse signal having a pulse width equal to a period of the signal-under-test. The signal amplifying module amplifies the pulse width of the first pulse signal and thereby generates a second pulse signal. The edge detecting module detects a rising edge and a falling edge of the second pulse signal, and generates a first indication signal and a second indication signal according to the respective detected results. The time-to-digital converting module converts the pulse width of the second pulse signal existed in time domain to a digital signal according to the first indication signal and the second indication signal.
摘要翻译： 提供抖动测量装置及其方法。 用于抖动测量的装置包括信号检索模块，信号放大模块，边缘检测模块和时间 - 数字转换模块。 信号检索模块接收待测信号，并检索具有等于被测信号的周期的脉冲宽度的第一脉冲信号。 信号放大模块放大第一脉冲信号的脉冲宽度，从而产生第二脉冲信号。 边缘检测模块检测第二脉冲信号的上升沿和下降沿，并根据各个检测结果生成第一指示信号和第二指示信号。 时间 - 数字转换模块根据第一指示信号和第二指示信号将时域中存在的第二脉冲信号的脉冲宽度转换为数字信号。
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