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    • 2. 发明申请
    • ジッタ測定装置、及びジッタ測定方法
    • 抖动测量装置和抖动测量方法
    • WO2002103377A1
    • 2002-12-27
    • PCT/JP2002/005968
    • 2002-06-14
    • 株式会社アドバンテスト石田 雅裕山口 隆弘ソーマ マニ
    • 石田 雅裕山口 隆弘ソーマ マニ
    • G01R29/02
    • G01R31/31709G01R29/26
    • A jitter measuring apparatus for measuring jitter of a discrete signal to be measured. The apparatus includes a phase error estimating device for calculating phase errors between a plurality of sample points satisfying a predetermined condition and a plurality of points where the signal to be measured has a predetermined value or a plurality of points among the discrete sample points of the signal to be measured and having a predetermined value, thereby generating a phase error sequence, and a cycle jitter estimating device for calculating a cycle jitter sequence of the signal to be measured according to the phase error sequence. For example, the phase error estimating device calculates phase errors between a plurality of approximate zero cross points satisfying a predetermined condition and a plurality of zero cross points in the signal to be measured or a plurality of zero cross points among the sample points, thereby generating a phase error sequence.
    • 用于测量要测量的离散信号的抖动的抖动测量装置。 该装置包括:相位误差估计装置,用于计算满足预定条件的多个采样点与要测量的信号的多个点之间的相位误差相对于信号的离散采样点中的预定值或多个点 被测量并具有预定值,从而产生相位误差序列,以及循环抖动估计装置,用于根据相位误差序列计算要测量的信号的周期抖动序列。 例如,相位误差估计装置计算满足预定条件的多个近似零交叉点与待测信号中的多个零交叉点或采样点之间的多个零交叉点之间的相位误差,从而生成 相位误差序列。
    • 5. 发明申请
    • 測定装置、及び測定方法
    • 测量仪器和测量方法
    • WO2003073115A1
    • 2003-09-04
    • PCT/JP2003/001523
    • 2003-02-14
    • 株式会社アドバンテスト山口 隆弘石田 雅裕ソーマ マニ
    • 山口 隆弘石田 雅裕ソーマ マニ
    • G01R31/30
    • G01R31/31709G01R29/02G01R29/0273G01R29/26G01R31/31922G01R31/31937H04L1/203H04L1/205
    • An instrument for measuring the anti-jitter reliability of an electronic device is characterized by comprising a jitter resistance estimating section for calculating the jitter tolerance of an electronic device on the basis of an output signal outputted from the electronic device in response to an input signal inputted via a transmission line which generates no definite jitter and has a transmission length shorter than a predetermined length, a jitter resistance degradation estimating section for calculating the degradation of a jitter resistance degraded by the definite jitter generated in an input signal by transmission via a long transmission line when the input signal is inputted to the electronic device via the long transmission line which generates a determined jitter and has a transmission length longer than the predetermined length, and a system jitter resistance estimating section for calculating the jitter resistance of a system including the long transmission line and the electronic device on the basis of the jitter resistance of the electronic device and the degradation of the jitter resistance.
    • 一种用于测量电子设备的抗抖动可靠性的仪器的特征在于包括抖动电阻估计部分,用于根据输入的输入信号,根据从电子设备输出的输出信号计算电子设备的抖动容限 通过不产生确定的抖动并且具有短于预定长度的传输长度的传输线,抖动电阻劣化估计部分,用于计算通过长时间传输通过传输在输入信号中产生的确定的抖动而劣化的抖动电阻的劣化 当输入信号通过产生确定的抖动并具有长于预定长度的传输长度的长传输线被输入到电子设备时,系统抖动电阻估计部分用于计算包括长度的系统的抖动电阻 传输线和E1 电子设备基于电子设备的抖动电阻和抖动电阻的劣化。