公开(公告)号：US08175828B2

公开(公告)日：2012-05-08

申请号：US12355799

申请日：2009-01-18

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： G01R31/31709

摘要： Provided is an evaluation apparatus that evaluates a characteristic of a propagation apparatus propagating a signal, comprising an output signal measuring section that measures a probability density function expressing a probability density distribution of jitter of an output signal passed by the propagation apparatus; an isolating section that isolates at least one of a random component of a jitter component and a deterministic component of the jitter component in the jitter of the output signal, from the probability density function of the jitter of the output signal; and an evaluating section that evaluates the characteristic of the propagation apparatus based on the jitter component isolated by the isolating section.

摘要翻译： 提供一种评价装置，其评价传播信号的传播装置的特性，包括：测量表示传播装置通过的输出信号的抖动的概率密度分布的概率密度函数的概率密度函数的输出信号测量部; 隔离部分，根据输出信号的抖动的概率密度函数，将抖动分量的随机分量和抖动分量的确定分量中的至少一个与输出信号的抖动相隔离; 以及评估部，其基于由所述隔离部隔离的抖动成分来评价所述传播装置的特性。

公开(公告)号：US08155215B2

公开(公告)日：2012-04-10

申请号：US11770742

申请日：2007-06-29

申请人： Kiyotaka Ichiyama ,  Masahiro Ishida

发明人： Kiyotaka Ichiyama ,  Masahiro Ishida

IPC分类号： H04L27/00

CPC分类号： H04L7/0008 ,  H04L25/493

摘要： There is provided a circuit constituted by small-sized and simple logical gates which reduces the bit errors generated in a data sequence received by a receiver. A transmission system, in which a data sequence is transferred, includes a transmitter that transmits a first transfer signal including an edge-present data waveform which has (i) a first timing edge indicating a timing to obtain data included in the data sequence and (ii) a level signal indicating a signal level corresponding to a value of the data, and a receiver that outputs the value of the data in accordance with the signal level which is detected at the timing indicated by the first timing edge of the edge-present data waveform.

摘要翻译： 提供了由小型和简单的逻辑门构成的电路，其减少了由接收器接收的数据序列中产生的位错误。 传输数据序列的传输系统包括发送包括边缘存在数据波形的第一传输信号的发射机，该第一传输信号具有（i）指示定时的第一定时边缘以获得数据序列中包括的数据， ii）指示与数据值相对应的信号电平的电平信号，以及接收器，其根据在由边缘存在的第一定时边缘指示的定时检测到的信号电平输出数据值 数据波形。

公开(公告)号：US08068538B2

公开(公告)日：2011-11-29

申请号：US11266471

申请日：2005-11-04

申请人： Kiyotaka Ichiyama ,  Masahiro Ishida ,  Yasuhide Kuramochi ,  Takahiro Yamaguchi

发明人： Kiyotaka Ichiyama ,  Masahiro Ishida ,  Yasuhide Kuramochi ,  Takahiro Yamaguchi

IPC分类号： H04B3/46

CPC分类号： G01R29/26 ,  G01R31/31709

摘要： There is provided a jitter measuring apparatus for measuring jitter in a signal-under-measurement, having a pulse generator for outputting a pulse signal having a pulse width set in advance corresponding to edges-under-measurement from which the timing jitter is to be measured in the signal-under-measurement, a filter for removing carrier frequency components of the signal-under-measurement from the pulse signal and a jitter calculator for calculating the jitter in the signal-under-measurement based on the signal outputted out of the filter.

摘要翻译： 提供了一种用于测量测量信号中的抖动的抖动测量装置，其具有用于输出脉冲信号的脉冲发生器，该脉冲信号具有预先设置的脉冲宽度，该脉冲信号对应于要测量定时抖动的测量下边缘 在信号不足测量中，用于从脉冲信号中去除测量信号的载波频率分量的滤波器和用于根据从滤波器输出的信号计算测量信号中的抖动的抖动计算器 。

公开(公告)号：US07945403B2

公开(公告)日：2011-05-17

申请号：US12116972

申请日：2008-05-08

申请人： Masahiro Ishida ,  Atsuya Ono

发明人： Masahiro Ishida ,  Atsuya Ono

IPC分类号： G01R13/00 ,  G06F17/00

CPC分类号： G01R29/02 ,  G01R13/0218 ,  G01R31/3193 ,  G01R31/31937

摘要： Provided is a signal measurement apparatus, including sampling sections that each sample a signal under measurement having a cycle T with a threshold value, where the threshold values of at least two of the sampling sections are different from each other; a waveform reconfiguring section that shapes a reconfigured waveform having the cycle T by rearranging ordinal ranks of sample values corresponding to each threshold value obtained by the sampling sections, a distribution generating section that generates a timing distribution of edges in the reconfigured waveform corresponding to each threshold value; and a calculating section that calculates rise time or fall time of the signal under measurement based on the timing distribution corresponding to each threshold value.

摘要翻译： 提供了一种信号测量装置，其包括采样部分，每个采样部分对具有阈值的周期T进行测量的信号进行采样，其中至少两个采样部分的阈值彼此不同; 波形重构部分，通过重新排列与由采样部分获得的每个阈值相对应的采样值的顺序排列来对具有周期T的重新配置的波形进行整形;分布生成部分，生成与每个阈值对应的重新配置的波形中的边沿的定时分布 值; 以及计算部，其基于与各阈值对应的定时分布，计算被测信号的上升时间或下降时间。

公开(公告)号：US07933728B2

公开(公告)日：2011-04-26

申请号：US12116971

申请日：2008-05-08

申请人： Masahiro Ishida

发明人： Masahiro Ishida

IPC分类号： G01R13/00

CPC分类号： G01R25/005 ,  G01R31/31709 ,  G01R31/31937

摘要： Provided is a skew measurement apparatus, including sampling sections that each sample one of a plurality of signals under measurement having a cycle T, a waveform reconfiguring section that shapes a reconfigured waveform having the cycle T by rearranging ordinal ranks of sample values of the signal under measurement sampled by each sampling section, a distribution generating section that generates a timing distribution of edges in the reconfigured waveform of the corresponding signal under measurement, and a skew calculating section that calculates skew between the signals under measurement being compared based on the timing distribution of each signal under measurement.

摘要翻译： 提供了一种倾斜测量装置，其包括每个采样部分，每个采样部分对具有周期T的多个测量信号中的一个进行采样;波形重构部分，其通过重新排列具有周期T的信号的样本值的序数等级来对具有周期T的重新配置的波形进行整形 由每个采样部分采样的测量值，产生测量对应信号的重新配置波形中的边沿的定时分布的分布产生部分，以及基于所测量的信号的定时分布来计算被测信号之间的偏差的偏斜计算部分 每个信号都在测量。

公开(公告)号：US20100239318A1

公开(公告)日：2010-09-23

申请号：US12659647

申请日：2010-03-16

申请人： Yasuhiro Maehata ,  Tetsuji Nishikawa ,  Masahiro Ishida ,  Yasuhisa Ehara ,  Noriaki Funamoto ,  Jun Yasuda

发明人： Yasuhiro Maehata ,  Tetsuji Nishikawa ,  Masahiro Ishida ,  Yasuhisa Ehara ,  Noriaki Funamoto ,  Jun Yasuda

IPC分类号： G03G15/00

CPC分类号： G03G15/757 ,  G03G15/0194 ,  G03G2215/0132 ,  G03G2215/0158

摘要： A printer according to the present invention is a so-called tandem-type printer, and has a configuration that a motor gear is directly connected to an M-photoconductor driving gear and an idler gear is directly connected to a Y-photoconductor driving gear and the M-photoconductor driving gear. A diameter of the Y and M photoconductors driving gear, a distance between transfer sections of the Y and M photoconductors, a motor gear input angle, and an idler input angle are set so that an absolute value of a value obtained by subtracting 1 from an ideal amplitude ratio, which indicates a ratio of an ideal amplitude of an eccentric component of the Y-photoconductor driving gear to an actual amplitude of an eccentric component of the M-photoconductor driving gear, is equal to or less than a maximum allowable amplitude ratio.

摘要翻译： 根据本发明的打印机是所谓的串联式打印机，并且具有将马达齿轮直接连接到M感光体驱动齿轮并且空转齿轮直接连接到Y感光体驱动齿轮的构造， M感光体驱动齿轮。 Y和M感光体驱动齿轮的直径，Y和M感光体的转印部分之间的距离，电动机齿轮输入角度和惰轮输入角度被设置为使得从一个 表示Y感光体驱动齿轮的偏心分量的理想振幅与M感光体驱动齿轮的偏心分量的实际振幅的比的理想振幅比等于或小于最大允许振幅比 。

公开(公告)号：US07724811B2

公开(公告)日：2010-05-25

申请号：US11535296

申请日：2006-09-26

申请人： Kiyotaka Ichiyama ,  Masahiro Ishida ,  Takahiro Yamaguchi

发明人： Kiyotaka Ichiyama ,  Masahiro Ishida ,  Takahiro Yamaguchi

IPC分类号： H04B3/46 ,  H04B17/00 ,  H04Q1/20

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：US07702252B2

公开(公告)日：2010-04-20

申请号：US11822059

申请日：2007-07-02

申请人： Yasuhiro Maehata ,  Kazuki Suzuki ,  Takayuki Niihara ,  Makoto Kikura ,  Tetsuji Nishikawa ,  Masahiro Ishida

发明人： Yasuhiro Maehata ,  Kazuki Suzuki ,  Takayuki Niihara ,  Makoto Kikura ,  Tetsuji Nishikawa ,  Masahiro Ishida

IPC分类号： G03G15/00

CPC分类号： G03G15/757 ,  F16C13/02 ,  F16D1/104 ,  G03G2221/1657 ,  Y10T403/68 ,  Y10T403/7088

摘要： A connector connects a rotatable body including an attachment hole and an engaging groove, and a shaft pressed into the attachment hole to integrally rotate. The connector includes at least one pin configured to fit in the engaging groove; and a screw having a head configured to be pressed against the rotatable body either directly or via another member. The at least one pin is fixed on the shaft and extends in a radial direction of the shaft to penetrate the shaft. The screw is screwed into a screw hole on an end face of the shaft and is tightened to press the at least one pin against a surface of the engaging groove.

摘要翻译： 连接器将包括附接孔和接合槽的可旋转主体和被压入安装孔中的轴一体地旋转连接。 所述连接器包括构造成装配在所述接合槽中的至少一个销; 以及螺钉，其具有构造成直接地或经由另一构件压靠在可旋转体上的头部。 所述至少一个销固定在所述轴上并且在所述轴的径向方向上延伸以穿透所述轴。 将螺钉拧入轴的端面上的螺纹孔中并拧紧以将至少一个销压在接合槽的表面上。

公开(公告)号：US20100080274A1

公开(公告)日：2010-04-01

申请号：US12414618

申请日：2009-03-30

申请人： Masahiro Ishida

发明人： Masahiro Ishida

IPC分类号： H04B17/00

CPC分类号： G01R31/31709

摘要： Provided is a jitter measurement apparatus that measures timing jitter of a signal under measurement having a prescribed repeating pattern, comprising a sampling section that coherently samples the signal under measurement within a prescribed measurement duration; a waveform reconfiguring section that rearranges ordinal ranks of data values sampled by the sampling section to generate a reconfigured waveform that is a reproduction of a waveform of the signal under measurement; an analytic signal generating section that converts the reconfigured waveform into a complex analytic signal; and a jitter measuring section that measures jitter of the signal under measurement based on the analytic signal.

摘要翻译： 提供了一种抖动测量装置，其测量具有规定的重复图案的测量信号的定时抖动，包括：在规定的测量持续时间内相干采样测量信号的采样部分; 波形重新配置部分，重新​​排列由采样部分采样的数据值的等级，以产生作为测量信号的波形的再现的重新配置的波形; 分析信号生成部，其将重新配置的波形转换为复数分析信号; 以及基于分析信号测量被测信号的抖动的抖动测量部。

公开(公告)号：US07684944B2

公开(公告)日：2010-03-23

申请号：US11582143

申请日：2006-10-17

申请人： Masahiro Ishida ,  Toshiyuki Okayasu

发明人： Masahiro Ishida ,  Toshiyuki Okayasu

IPC分类号： G06F19/00

CPC分类号： G01R35/00 ,  G01R31/31709

摘要： There is provided a calibration apparatus that calibrates a jitter measuring circuit for outputting a jitter measuring signal with a level according to an amount of jitter in an input signal based on the input signal and a delay signal obtained by delaying the input signal by means of a variable delay circuit. The calibration apparatus includes a delay control section that sequentially sets a first delay amount and a second delay amount in the variable delay circuit and a gain computing section that computes gain in the jitter measuring circuit based on the jitter measuring signal respectively output from the jitter measuring circuit for the first delay amount and the second delay amount.

摘要翻译： 提供一种校准装置，其校准抖动测量电路，用于基于输入信号输出具有根据输入信号中的抖动量的电平的抖动测量信号，以及通过延迟输入信号获得的延迟信号 可变延迟电路。 校准装置包括延迟控制部分，其顺序地设置可变延迟电路中的第一延迟量和第二延迟量;以及增益计算部分，其基于从抖动测量分别输出的抖动测量信号来计算抖动测量电路中的增益 电路，用于第一延迟量和第二延迟量。