公开(公告)号：US20060182170A1

公开(公告)日：2006-08-17

申请号：US11378407

申请日：2006-03-17

申请人： Kiyotaka Ichiyama ,  Masahiro Ishida ,  Takahiro Yamaguchi ,  Mani Soma

发明人： Kiyotaka Ichiyama ,  Masahiro Ishida ,  Takahiro Yamaguchi ,  Mani Soma

IPC分类号： H04B17/00

CPC分类号： H04B17/364

摘要： A jitter measuring apparatus for measuring timing jitter of a signal-under-test is provided, wherein the jitter measuring apparatus includes a pulse generator for outputting a pulse signal of a predetermined pulse width for an edge of the signal-under-test, whose timing jitter is under test; and a jitter measuring sub-unit for extracting the timing jitter on the basis of a duty ratio of each cycle of the signal output by the pulse generator.

摘要翻译： 提供了一种用于测量待测信号的定时抖动的抖动测量装置，其中抖动测量装置包括脉冲发生器，用于输出针对被测信号的边缘的预定脉冲宽度的脉冲信号， 抖动被测试; 以及抖动测量子单元，用于基于由脉冲发生器输出的信号的每个周期的占空比来提取定时抖动。

公开(公告)号：US08204165B2

公开(公告)日：2012-06-19

申请号：US11616038

申请日：2006-12-26

申请人： Kiyotaka Ichiyama ,  Masahiro Ishida

发明人： Kiyotaka Ichiyama ,  Masahiro Ishida

IPC分类号： H04L7/00

CPC分类号： G01R29/26 ,  G01R31/31709 ,  H04L1/205

摘要： There is provided a jitter measurement apparatus to measure jitter of a signal under measurement. The jitter measurement apparatus includes a pulse generator that outputs a demodulated signal indicating the jitter of the signal under measurement, by outputting a pulse having a substantially constant pulse width in synchronization with each predetermined edge of the signal under measurement, a DC component detecting section that detects a DC component of the demodulated signal output from the pulse generator, and an adjusting section that adjusts the pulse width of the pulse output from the pulse generator, based on the DC component of the demodulated signal which is detected by the DC component detecting section.

摘要翻译： 提供了测量测量信号的抖动的抖动测量装置。 抖动测量装置包括脉冲发生器，通过与测量信号的每个预定边沿同步地输出具有基本上恒定的脉冲宽度的脉冲，输出指示被测信号的抖动的解调信号; DC分量检测部分， 检测从脉冲发生器输出的解调信号的直流分量，以及调整部，其基于由直流成分检测部检测出的解调信号的直流成分，调整从脉冲发生器输出的脉冲的脉冲宽度 。

公开(公告)号：US08000931B2

公开(公告)日：2011-08-16

申请号：US12256478

申请日：2008-10-23

申请人： Kiyotaka Ichiyama ,  Masahiro Ishida ,  Takahiro Yamaguchi

发明人： Kiyotaka Ichiyama ,  Masahiro Ishida ,  Takahiro Yamaguchi

IPC分类号： G06F17/18

CPC分类号： H04L1/20

摘要： Provided is a deterministic component model determining apparatus that determines a type of a deterministic component included in a probability density function supplied thereto, comprising a standard deviation calculating section that calculates a standard deviation of the probability density function; a spectrum calculating section that calculates a spectrum of the probability density function; a null frequency detecting section that detects a null frequency of the spectrum; a theoretical value calculating section that calculates a theoretical value of a spectrum for each of a plurality of predetermined types of deterministic components, based on the null frequency; a measured value calculating section that calculates a measured value of the spectrum for the deterministic component included in the probability density function, based on the standard deviation and the spectrum; and a model determining section that determines the type of the deterministic component included in the probability density function to be the type of deterministic component corresponding to a theoretical value closest to the measured value, from among the theoretical values for the plurality of types of deterministic components.

摘要翻译： 提供一种确定性分量模型确定装置，其确定包括在提供给其的概率密度函数中的确定性分量的类型，包括：计算概率密度函数的标准偏差的标准偏差计算部分; 频谱计算部分，其计算概率密度函数的频谱; 空频检测部，检测频谱的零频率; 理论值计算部，其基于所述零频率来计算多个预定类型的确定性分量中的每一个的频谱的理论值; 测量值计算部分，其基于标准偏差和光谱计算包括在概率密度函数中的确定性分量的光谱的测量值; 以及模型确定部分，从多个类型的确定性分量的理论值中，确定包括在概率密度函数中的确定性分量的类型，作为与最接近测量值的理论值相对应的确定性分量的类型 。

公开(公告)号：US07957458B2

公开(公告)日：2011-06-07

申请号：US11378407

申请日：2006-03-17

申请人： Kiyotaka Ichiyama ,  Masahiro Ishida ,  Takahiro Yamaguchi ,  Mani Soma

发明人： Kiyotaka Ichiyama ,  Masahiro Ishida ,  Takahiro Yamaguchi ,  Mani Soma

IPC分类号： H04Q1/20

CPC分类号： H04B17/364

摘要： A jitter measuring apparatus measures timing jitter of a signal-under-test. The jitter measuring apparatus includes a pulse generator for outputting a pulse signal of a predetermined pulse width for an edge of the signal-under-test, and a jitter measuring sub-unit for extracting the timing jitter on the basis of a duty ratio of each cycle of the signal output by the pulse generator.

摘要翻译： 抖动测量装置测量待测信号的定时抖动。 抖动测量装置包括脉冲发生器，用于输出针对待测信号的边缘的预定脉冲宽度的脉冲信号，以及抖动测量子单元，用于根据每个的占空比提取定时抖动 由脉冲发生器输出的信号周期。

公开(公告)号：US07917331B2

公开(公告)日：2011-03-29

申请号：US12272810

申请日：2008-11-18

申请人： Kiyotaka Ichiyama ,  Masahiro Ishida ,  Takahiro Yamaguchi

发明人： Kiyotaka Ichiyama ,  Masahiro Ishida ,  Takahiro Yamaguchi

IPC分类号： G06F17/17 ,  G06F17/00

CPC分类号： G01R29/26

摘要： A deterministic component identifying apparatus identifies a distribution shape of a deterministic component included in a probability density function supplied thereto. The apparatus includes a standard deviation calculating section that calculates a standard deviation of the probability density function, a spectrum calculating section that calculates a spectrum of the probability density function, a null frequency detecting section that detects a null frequency of the spectrum, and a ratio calculating section that calculates a ratio between a top portion and a bottom portion of a distribution of the deterministic component, based on the standard deviation of the probability density function and the null frequency of the spectrum.

摘要翻译： 确定性分量识别装置识别包含在提供给它的概率密度函数中的确定性分量的分布形状。 该装置包括计算概率密度函数的标准偏差的标准偏差计算部分，计算概率密度函数的频谱的频谱计算部分，检测频谱的零频率的零频率检测部分， 计算部分，其基于概率密度函数的标准偏差和频谱的零频率来计算确定性分量的分布的顶部和底部之间的比率。

公开(公告)号：US07564897B2

公开(公告)日：2009-07-21

申请号：US10896751

申请日：2004-07-22

申请人： Kiyotaka Ichiyama ,  Masahiro Ishida ,  Takahiro Yamaguchi ,  Mani Soma

发明人： Kiyotaka Ichiyama ,  Masahiro Ishida ,  Takahiro Yamaguchi ,  Mani Soma

IPC分类号： H04B3/46

CPC分类号： G01R31/31709 ,  G01R29/26 ,  G01R31/3016 ,  G01R31/31725 ,  G01R31/3191 ,  G01R31/31937

摘要： A jitter measurement apparatus for measuring an intrinsic jitter of a circuit to be tested including a phase detector which outputs a signal according to a phase difference between a supplied first input signal and a supplied second input signal, includes: an input unit for supplying an identical signal to the phase detector as the first input signal and as the second input signal; and a jitter measurement unit for measuring the intrinsic jitter of the circuit to be tested by measuring a jitter of a signal which is generated in an inside of the circuit to be tested according to an signal output from the phase detector.

摘要翻译： 一种用于测量被测电路的固有抖动的抖动测量装置，包括：根据所提供的第一输入信号和所提供的第二输入信号之间的相位差输出信号的相位检测器，包括：输入单元，用于提供相同的 向相位检测器发信号作为第一输入信号，并作为第二输入信号; 以及抖动测量单元，用于根据从相位检测器输出的信号测量待测电路的内部产生的信号的抖动来测量待测电路的固有抖动。

公开(公告)号：US07554332B2

公开(公告)日：2009-06-30

申请号：US11371849

申请日：2006-03-10

申请人： Kiyotaka Ichiyama ,  Masahiro Ishida ,  Takahiro Yamaguchi

发明人： Kiyotaka Ichiyama ,  Masahiro Ishida ,  Takahiro Yamaguchi

IPC分类号： G01R31/00

CPC分类号： G01R29/26 ,  G01R31/31709 ,  H04L1/205

摘要： There is provided a calibration apparatus for calibrating an electronic device that outputs a demodulation signal in which a modulated component of a signal to be tested or evaluated is demodulated, having a DC component detecting section for detecting a DC component of the demodulation signal, a gain calculating section for calculating a gain in the electronic device based on the DC component of the demodulation signal and a calibrating section for calibrating the electronic device based on the gain in the electronic device.

摘要翻译： 提供了一种用于校准电子装置的校准装置，该电子装置输出其中被测试或评估的信号的调制分量被解调的解调信号，具有用于检测解调信号的DC分量的DC分量检测部分， 计算部分，用于基于解调信号的DC分量计算电子设备中的增益;以及校准部分，用于基于电子设备中的增益校准电子设备。

公开(公告)号：US20080092000A1

公开(公告)日：2008-04-17

申请号：US11535296

申请日：2006-09-26

申请人： Kiyotaka Ichiyama ,  Masahiro Ishida ,  Takahiro Yamagochi

发明人： Kiyotaka Ichiyama ,  Masahiro Ishida ,  Takahiro Yamagochi

IPC分类号： G01R31/28

CPC分类号： G01R31/31709 ,  H03K5/133 ,  H03K2005/00026

摘要： There is provided a delay circuit that delays and outputs a given input signal. The delay circuit includes a first delaying section that delays the input signal, a second delaying section that further delays the input signal delayed by the first delaying section, and a delay setting section that sets a time delay in the second delaying section at a timing delayed by a predetermined time to a timing setting a time delay in the first delaying section.

摘要翻译： 提供延迟并输出给定​​输入信号的延迟电路。 延迟电路包括延迟输入信号的第一延迟部分，进一步延迟由第一延迟部分延迟的输入信号的第二延迟部分和延迟设置部分，其在延迟的定时处设置第二延迟部分中的时间延迟 预定时间到设定第一延迟部分中的时间延迟的定时。

公开(公告)号：US20070247181A1

公开(公告)日：2007-10-25

申请号：US11407136

申请日：2006-04-20

申请人： Masahiro Ishida ,  Kiyotaka Ichiyama ,  Takahiro Yamaguchi

发明人： Masahiro Ishida ,  Kiyotaka Ichiyama ,  Takahiro Yamaguchi

IPC分类号： G01R31/26

CPC分类号： G01R31/31908 ,  G01R31/31725

摘要： There is provided a testing apparatus for evaluating a device-under-test, having an extracting section for extracting jitter components out of an output signal outputted out of the device-under-test, a filter for passing predetermined frequency components in the jitter components, a phase control section for controlling phase of the output signal based on the jitter components outputted out of the filter and an evaluating section for evaluating the device-under-test based on a signal outputted out of the phase control section.

摘要翻译： 提供了一种用于评估被测器件的测试装置，具有提取部分，用于从经测试的器件输出的输出信号中提取抖动分量，用于使抖动分量中的预定频率分量通过的滤波器， 相位控制部分，用于基于从滤波器输出的抖动分量来控制输出信号的相位;以及评估部分，用于基于从相位控制部分输出的信号来评估被测器件。

公开(公告)号：US20070239388A1

公开(公告)日：2007-10-11

申请号：US11390340

申请日：2006-03-28

申请人： Kiyotaka Ichiyama ,  Masahiro Ishida ,  Takahiro Yamaguchi

发明人： Kiyotaka Ichiyama ,  Masahiro Ishida ,  Takahiro Yamaguchi

IPC分类号： G06F19/00

CPC分类号： G01R31/31709

摘要： There is provided a jitter amplifier for amplifying or attenuating a jitter component contained in an input signal, having a jitter demodulating section for demodulating the jitter component from the input signal and an amplifying circuit for amplifying or attenuating the jitter component by controlling phase of the input signal based on the jitter component.

摘要翻译： 提供了一种用于放大或衰减包含在输入信号中的抖动分量的抖动放大器，具有用于从输入信号解调抖动分量的抖动解调部分和用于通过控制输入的相位来放大或衰减抖动分量的放大电路 基于抖动分量的信号。