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31. 发明授权

US07933728B2 Skew measurement apparatus, skew measurement method, recording media and test apparatus 失效
标题翻译：倾斜测量装置，偏斜测量方法，记录介质和测试装置
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。

32. 发明申请

US20100239318A1 Image forming apparatus 有权
标题翻译：图像形成装置
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。

33. 发明授权

US07724811B2 Delay circuit, jitter injection circuit, and test apparatus 有权
标题翻译：延迟电路，抖动注入电路和测试装置
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。

34. 发明授权

US07702252B2 Connector and image forming apparatus including the same 有权
标题翻译：连接器和包括其的成像设备
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。

35. 发明申请

US20100080274A1 JITTER MEASUREMENT APPARATUS, JITTER CALCULATOR, JITTER MEASUREMENT METHOD, PROGRAM, RECORDING MEDIUM, COMMUNICATION SYSTEM AND TEST APPARATUS 失效
标题翻译：抖动测量装置，抖动计算器，抖动测量方法，程序，记录介质，通信系统和测试装置
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。

36. 发明授权

US07684944B2 Calibration apparatus, calibration method, and testing apparatus 有权
标题翻译：校准装置，校准方法和试验装置
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。

37. 发明授权

US07636387B2 Measuring apparatus and measuring method 有权
标题翻译：测量装置和测量方法
公开(公告)号：US07636387B2
公开(公告)日：2009-12-22
申请号：US10776926
申请日：2004-02-11
申请人： Takahiro Yamaguchi , Masahiro Ishida , Mani Soma , Hirobumi Musha
发明人： Takahiro Yamaguchi , Masahiro Ishida , Mani Soma , Hirobumi Musha
IPC分类号： H04B3/46
CPC分类号： G01R31/3171 , G01R29/26 , G01R31/31709 , G01R31/31725 , G01R31/31922 , G01R31/31937 , H04L1/205
摘要： A measuring apparatus including a timing jitter estimator which estimates an output timing jitter sequence which indicates the output timing jitter of an output signal based on an output signal output from a DUT in response to an input signal input to the DUT, and a jitter transfer function estimator which estimates a jitter transfer function in the DUT based on the output timing jitter sequence. The jitter transfer function estimator includes an instantaneous phase noise estimator which estimates an instant phase noise of the output signal based on an output signal, and a resampler which generates the output timing jitter sequence by resampling the instantaneous phase noise at predetermined timing.
摘要翻译：一种测量装置，包括定时抖动估计器，其响应于输入到DUT的输入信号，估计基于从DUT输出的输出信号来输出输出信号的输出定时抖动的输出定时抖动序列，以及抖动传递函数估计器，其基于输出定时抖动序列来估计DUT中的抖动传递函数。抖动传递函数估计器包括：基于输出信号估计输出信号的瞬时相位噪声的瞬时相位噪声估计器;以及通过在预定定时重采样瞬时相位噪声来产生输出定时抖动序列的重采样器。

38. 发明授权

US07596173B2 Test apparatus, clock generator and electronic device 有权
标题翻译：测试仪器，时钟发生器和电子设备
公开(公告)号：US07596173B2
公开(公告)日：2009-09-29
申请号：US11260665
申请日：2005-10-28
申请人： Masahiro Ishida , Takahiro Yamaguchi , Mani Soma
发明人： Masahiro Ishida , Takahiro Yamaguchi , Mani Soma
IPC分类号： H04B3/46
CPC分类号： H03K5/13 , G01R31/31709 , H03L7/0812 , H03L7/0891 , H03L7/0995 , H03L7/16
摘要： There is provided a clock generator for generating a single-phase clock into which jitter has been injected, having a multi-phase clock generating section for generating a plurality of clock signals having an almost equal phase difference from each other and a jitter injecting section for injecting jitter into the respective clock signals.
摘要翻译：提供了一种时钟发生器，用于产生已经注入了抖动的单相时钟，具有用于产生彼此具有几乎相等的相位差的多个时钟信号的多相时钟产生部分，以及用于将抖动注入相应的时钟信号。

39. 发明授权

US07541815B2 Electronic device, testing apparatus, and testing method 失效
标题翻译：电子设备，测试仪器和测试方法
公开(公告)号：US07541815B2
公开(公告)日：2009-06-02
申请号：US11371939
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： G01R31/02
CPC分类号： G01R31/3191 , G01R31/31926 , G01R31/31928
摘要： A testing apparatus tests the performance of an electronic device having an operation circuit for providing a useful output signal. A demodulator configured to provide a phase or frequency demodulated signal related to the output of the operation circuit is packaged with the operation circuit. The gain of the demodulator is controllable from outside the package. The testing apparatus analyses the demodulated signal and controls the gain of the demodulator.
摘要翻译：测试装置测试具有用于提供有用输出信号的操作电路的电子设备的性能。配置成提供与操作电路的输出相关的相位或频率解调信号的解调器与操作电路封装。解调器的增益可从封装外部控制。测试装置分析解调信号并控制解调器的增益。

40. 发明申请

US20090134428A1 NITRIDE SEMICONDUCTOR DEVICE AND MANUFACTURING METHOD THEREOF 有权
标题翻译：氮化物半导体器件及其制造方法
公开(公告)号：US20090134428A1
公开(公告)日：2009-05-28
申请号：US12265161
申请日：2008-11-05
申请人： Masahiro Ishida
发明人： Masahiro Ishida
IPC分类号： H01L33/00 , H01L21/20
CPC分类号： H01S5/22 , B82Y20/00 , H01L33/44 , H01S5/028 , H01S5/162 , H01S5/2004 , H01S5/2201 , H01S5/2214 , H01S5/305 , H01S5/3063 , H01S5/3213 , H01S5/34333
摘要： A nitride semiconductor device includes: a semiconductor substrate; a p-type semiconductor layer formed over the semiconductor substrate, made of a nitride semiconductor, and containing first impurities; and an insulating film contacting the p-type semiconductor layer and having an impurity region containing second impurities for trapping hydrogen. Since residual hydrogen in the p-type semiconductor layer is trapped in the impurity region, the hydrogen concentration in the impurity region is higher than that in the insulating film excluding the impurity region.
摘要翻译：氮化物半导体器件包括：半导体衬底; 形成在半导体衬底上的由氮化物半导体制成并包含第一杂质的p型半导体层; 以及与p型半导体层接触并具有含有用于捕获氢的第二杂质的杂质区域的绝缘膜。由于p型半导体层中的残留氢被捕获在杂质区域中，杂质区域中的氢浓度高于除了杂质区域之外的绝缘膜中的氢浓度。

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