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1. 发明申请

US20080172194A1 Time Interval Measuring Apparatus and Jitter Measuring Apparatus Using the Same 失效
标题翻译：时间间隔测量装置及其使用的抖动测量装置
公开(公告)号：US20080172194A1
公开(公告)日：2008-07-17
申请号：US11660116
申请日：2006-06-16
申请人： Ken Mochizuki , Osamu Sugiyama , Tadanori Nishikobara
发明人： Ken Mochizuki , Osamu Sugiyama , Tadanori Nishikobara
IPC分类号： G01R29/02
CPC分类号： G01R29/0273 , G01R25/00 , G01R29/023 , G01R29/26 , G01R31/31709 , G04F10/06
摘要： In order to stably measure an input interval time of a pulse signal with high precision, a time interval measuring apparatus includes a reference signal generator, a phase shifter, first and second A/D converters, an error correction unit, an instantaneous phase calculation unit, and an interval time calculation unit. The phase shifter divides a reference signal of a sine wave having a predetermined frequency from the reference signal generator into a first analog signal and a second analog signal having phases shifted to each other. The first and second A/D converters perform sampling of the first analog signal and the second analog signal from the phase shifter, respectively, at an input timing of a pulse signal to be measured, and output a first and second digital sample values. The error correction unit corrects direct current offset errors generated in, respectively, the first and second digital sample values output from the first and second A/D converters, a phase error with respect to 90°, and an amplitude error. The instantaneous phase calculation unit calculates an instantaneous phase of the reference signal based on the corrected first and second digital sample values. The interval time calculation unit determines an input interval time of the pulse signal based on a variation of instantaneous phases.
摘要翻译：为了以高精度稳定地测量脉冲信号的输入间隔时间，时间间隔测量装置包括参考信号发生器，移相器，第一和第二A / D转换器，纠错单元，瞬时相位计算单元，以及间隔时间计算单元。移相器将具有预定频率的正弦波的参考信号从参考信号发生器分成第一模拟信号和具有彼此偏移的相位的第二模拟信号。第一和第二A / D转换器在待测量的脉冲信号的输入定时分别执行来自移相器的第一模拟信号和第二模拟信号的采样，并输出第一和第二数字采样值。误差校正单元分别校正从第一和第二A / D转换器输出的第一和第二数字采样值，相对于90°的相位误差和幅度误差产生的直流偏移误差。瞬时相位计算单元基于校正的第一和第二数字采样值来计算参考信号的瞬时相位。间隔时间计算单元基于瞬时相位的变化来确定脉冲信号的输入间隔时间。

2. 发明授权

US07574311B2 Time interval measuring apparatus and jitter measuring apparatus using the same 失效
标题翻译：时间间隔测量装置和使用其的抖动测量装置
公开(公告)号：US07574311B2
公开(公告)日：2009-08-11
申请号：US11660116
申请日：2006-06-16
申请人： Ken Mochizuki , Osamu Sugiyama , Tadanori Nishikobara
发明人： Ken Mochizuki , Osamu Sugiyama , Tadanori Nishikobara
IPC分类号： G06F19/00
CPC分类号： G01R29/0273 , G01R25/00 , G01R29/023 , G01R29/26 , G01R31/31709 , G04F10/06
摘要： In order to stably measure an input interval time of a pulse signal with high precision, a time interval measuring apparatus includes a reference signal generator, a phase shifter, first and second A/D converters, an error correction unit, an instantaneous phase calculation unit, and an interval time calculation unit. The phase shifter divides a reference signal of a sine wave having a predetermined frequency from the reference signal generator into a first analog signal and a second analog signal having phases shifted to each other. The first and second A/D converters perform sampling of the first analog signal and the second analog signal from the phase shifter, respectively, at an input timing of a pulse signal to be measured, and output a first and second digital sample values. The error correction unit corrects direct current offset errors generated in, respectively, the first and second digital sample values output from the first and second A/D converters, a phase error with respect to 90°, and an amplitude error. The instantaneous phase calculation unit calculates an instantaneous phase of the reference signal based on the corrected first and second digital sample values. The interval time calculation unit determines an input interval time of the pulse signal based on a variation of instantaneous phases.
摘要翻译：为了以高精度稳定地测量脉冲信号的输入间隔时间，时间间隔测量装置包括参考信号发生器，移相器，第一和第二A / D转换器，纠错单元，瞬时相位计算单元，以及间隔时间计算单元。移相器将具有预定频率的正弦波的参考信号从参考信号发生器分成第一模拟信号和具有彼此偏移的相位的第二模拟信号。第一和第二A / D转换器在待测量的脉冲信号的输入定时分别执行来自移相器的第一模拟信号和第二模拟信号的采样，并输出第一和第二数字采样值。误差校正单元分别校正从第一和第二A / D转换器输出的第一和第二数字采样值，相对于90°的相位误差和幅度误差产生的直流偏移误差。瞬时相位计算单元基于校正的第一和第二数字采样值来计算参考信号的瞬时相位。间隔时间计算单元基于瞬时相位的变化来确定脉冲信号的输入间隔时间。

3. 发明申请

US20110268170A1 DATA SIGNAL QUALITY EVALUATION APPARATUS 有权
标题翻译：数据信号质量评估装置
公开(公告)号：US20110268170A1
公开(公告)日：2011-11-03
申请号：US13084861
申请日：2011-04-12
申请人： Keita Masuhara , Tadanori Nishikobara
发明人： Keita Masuhara , Tadanori Nishikobara
IPC分类号： H04B17/00
CPC分类号： G01R31/31709 , H04B17/23 , H04B17/309
摘要： When an operating unit is operated to designate an arbitrary width W and an arbitrary angle θ, a mask region limiting unit limits the effective range of a reference mask set for compliance measurement of the data signal to be evaluated by a reference mask setting unit to the range determined by the designated width and angle and displays the limited effective range on a display unit.When the mask region limiting unit limits the effective range of the reference mask, a quality evaluating unit performs compliance measurement and quality evaluation for the limited effective range in operative association with the limitation of the effective range.
摘要翻译：当操作单元被操作以指定任意宽度W和任意角度和角度时，掩模区域限制单元将由参考掩模设置单元判断的要被评估的数据信号的顺应性测量设置的参考掩码的有效范围限制为由指定的宽度和角度确定的范围，并在显示单元上显示有限的有效范围。当掩模区域限制单元限制参考掩模的有效范围时，质量评估单元在有效范围的限制下与有效的有效范围进行顺应性测量和质量评估。

4. 发明授权

US08442662B2 Measurement parameter input control device and measurement parameter input control method 有权
标题翻译：测量参数输入控制装置和测量参数输入控制方式
公开(公告)号：US08442662B2
公开(公告)日：2013-05-14
申请号：US13021949
申请日：2011-02-07
申请人： Yohei Niki , Eiji Takeda , Tadanori Nishikobara , Keita Masuhara , Takashi Murakami
发明人： Yohei Niki , Eiji Takeda , Tadanori Nishikobara , Keita Masuhara , Takashi Murakami
IPC分类号： G05B15/00
CPC分类号： G01D7/00
摘要： A measurement parameter input control method and a measurement parameter input control device are provided which can intuitively change measurement parameters, which are set for a target device and are necessary for various measuring processes, with high operability. The measurement parameter input control device includes: a parameter processing section that acquires measurement parameter information including measurement parameters from a target device and that rewrites changed parameters which are measurement parameters after the changing to the target device; a parameter identifying section that identifies the types of the parameters in the acquired measurement parameter information and outputs soft key constructing information for constructing a parameter setting soft key based on the identified measurement parameter information, a display control section that includes a soft key controller displaying and controlling the parameter setting soft key based on the measurement parameter information on a display screen of a display unit on the basis of the soft key constructing information from the parameter identifying section; and an input unit that operates the parameter setting soft key displayed on the display unit.
摘要翻译：提供了一种测量参数输入控制方法和测量参数输入控制装置，其可以直观地改变对于目标装置设置并且对于各种测量处理是必需的，具有高可操作性的测量参数。测量参数输入控制装置包括：参数处理部，从目标装置获取包括测量参数的测量参数信息，并且将改变后的参数重新改写为目标装置; 一个参数识别部分，用于识别所获取的测量参数信息中参数的类型，并输出基于所识别的测量参数信息构建参数设置软键的软键构造信息;显示控制部分，包括软键控制器显示和根据来自参数识别部分的软键构成信息，在显示单元的显示画面上基于测量参数信息来控制参数设定软键; 以及操作显示在显示单元上的参数设置软键的输入单元。

5. 发明授权

US08391346B2 Data signal quality evaluation apparatus 有权
标题翻译：数据信号质量评估仪
公开(公告)号：US08391346B2
公开(公告)日：2013-03-05
申请号：US13084861
申请日：2011-04-12
申请人： Keita Masuhara , Tadanori Nishikobara
发明人： Keita Masuhara , Tadanori Nishikobara
IPC分类号： H04B3/46
CPC分类号： G01R31/31709 , H04B17/23 , H04B17/309
摘要： When an operating unit is operated to designate an arbitrary width W and an arbitrary angle θ, a mask region limiting unit limits the effective range of a reference mask set for compliance measurement of the data signal to be evaluated by a reference mask setting unit to the range determined by the designated width and angle and displays the limited effective range on a display unit. When the mask region limiting unit limits the effective range of the reference mask, a quality evaluating unit performs compliance measurement and quality evaluation for the limited effective range in operative association with the limitation of the effective range.
摘要翻译：当操作单元被操作以指定任意宽度W和任意角度和角度时，掩模区域限制单元将由参考掩模设置单元判断的要被评估的数据信号的顺应性测量设置的参考掩码的有效范围限制为由指定的宽度和角度确定的范围，并在显示单元上显示有限的有效范围。当掩模区域限制单元限制参考掩模的有效范围时，质量评估单元在有效范围的限制下与有效的有效范围进行顺应性测量和质量评估。

6. 发明申请

US20110196515A1 MEASUREMENT PARAMETER INPUT CONTROL DEVICE AND MEASUREMENT PARAMETER INPUT CONTROL METHOD 有权
标题翻译：测量参数输入控制装置和测量参数输入控制方法
公开(公告)号：US20110196515A1
公开(公告)日：2011-08-11
申请号：US13021949
申请日：2011-02-07
申请人： Yohei Niki , Eiji Takeda , Tadanori Nishikobara , Keita Masuhara , Takashi Murakami
发明人： Yohei Niki , Eiji Takeda , Tadanori Nishikobara , Keita Masuhara , Takashi Murakami
IPC分类号： G05B15/00
CPC分类号： G01D7/00
摘要： A measurement parameter input control method and a measurement parameter input control device are provided which can intuitively change measurement parameters, which are set for a target device and are necessary for various measuring processes, with high operability. The measurement parameter input control device includes: a parameter processing section that acquires measurement parameter information including measurement parameters from a target device and that rewrites changed parameters which are measurement parameters after the changing to the target device; a parameter identifying section that identifies the types of the parameters in the acquired measurement parameter information and outputs soft key constructing information for constructing a parameter setting soft key based on the identified measurement parameter information, a display control section that includes a soft key controller displaying and controlling the parameter setting soft key based on the measurement parameter information on a display screen of a display unit on the basis of the soft key constructing information from the parameter identifying section; and an input unit that operates the parameter setting soft key displayed on the display unit.
摘要翻译：提供了一种测量参数输入控制方法和测量参数输入控制装置，其可以直观地改变对于目标装置设置并且对于各种测量处理是必需的，具有高可操作性的测量参数。测量参数输入控制装置包括：参数处理部，从目标装置获取包括测量参数的测量参数信息，并且将改变后的参数重新改写为目标装置; 一个参数识别部分，用于识别所获取的测量参数信息中参数的类型，并输出基于所识别的测量参数信息构建参数设置软键的软键构造信息;显示控制部分，包括软键控制器显示和根据来自参数识别部分的软键构成信息，在显示单元的显示画面上基于测量参数信息来控制参数设定软键; 以及操作显示在显示单元上的参数设置软键的输入单元。

7. 发明申请

US20110119622A1 WINDOW DISPLAY CONTROL APPARATUS AND METHOD OF CONTROLLING WINDOW DISPLAYS 审中-公开
标题翻译：窗口显示控制装置和控制窗口显示的方法
公开(公告)号：US20110119622A1
公开(公告)日：2011-05-19
申请号：US12944137
申请日：2010-11-11
申请人： Yohei Niki , Eiji Takeda , Tadanori Nishikobara , Keita Masuhara , Takashi Murakami
发明人： Yohei Niki , Eiji Takeda , Tadanori Nishikobara , Keita Masuhara , Takashi Murakami
IPC分类号： G06F3/048
CPC分类号： G09G5/14 , G06F3/0481 , G06F9/451
摘要： A plurality of display windows corresponding to a plurality of applications is formed from a plurality of fixed window frames that is displayed with regularity on one display screen of a display unit. A display control unit performs display control by sequentially displaying displays relating to the plurality of applications in a switching manner in the order in which the plurality of applications is selected in a time series in the fixed window display frames that are displayed with regularity on one display screen of the display unit when the plurality of applications is selected in the time series.
摘要翻译：与多个应用相对应的多个显示窗由在显示单元的一个显示画面上规则地显示的多个固定窗框形成。显示控制单元通过在一个显示器上以规律性的方式显示的固定窗口显示框中以按照时间顺序选择多个应用的顺序以切换方式依次显示与多个应用有关的显示来执行显示控制当在时间序列中选择多个应用时，显示单元的屏幕。

8. 发明授权

US08143959B2 Jitter generation apparatus, device test system using the same, and jitter generation method 有权
标题翻译：抖动发生装置，使用相同的装置测试系统和抖动生成方法
公开(公告)号：US08143959B2
公开(公告)日：2012-03-27
申请号：US12715092
申请日：2010-03-01
申请人： Katsuyuki Yaginuma , Tadanori Nishikobara
发明人： Katsuyuki Yaginuma , Tadanori Nishikobara
IPC分类号： H03B29/00
CPC分类号： G01R31/31709 , H03C3/095 , H03C3/0966
摘要： A jitter generation apparatus for applying a phase modulation to a PLL is controlled by a control unit so as to output a signal with the desired jitter based on a parameters. When a switching unit is switched to a first state, the control unit controls first and second level control units so that the desired jitter in which an amplitude of a first modulation signal matches the parameter is added to an output signal from a voltage controlled oscillator unit, and passes through a quadrature modulator. When the switching unit is switched to the second state, the control unit controls the first and second level control units so that a quadrature modulation is applied to a local signal, which is input to the quadrature modulator without adding any jitter to an output signal from the voltage controlled oscillator unit, and a quadrature-modulated local signal is output.
摘要翻译：用于向PLL施加相位调制的抖动产生装置由控制单元控制，以便基于参数输出具有期望抖动的信号。当切换单元切换到第一状态时，控制单元控制第一和第二电平控制单元，使得将第一调制信号的幅度与参数相匹配的期望抖动与来自压控振荡器单元的输出信号相加，并通过正交调制器。当切换单元切换到第二状态时，控制单元控制第一和第二电平控制单元，使得正交调制被施加到本地信号，该本地信号被输入到正交调制器，而不对来自输出压控振荡器单元和正交调制本地信号。

9. 发明申请

US20100150218A1 JITTER GENERATION APPARATUS, DEVICE TEST SYSTEM USING THE SAME, AND JITTER GENERATION METHOD 有权
标题翻译：智能发电装置，使用该装置的装置测试系统和智能发生方法
公开(公告)号：US20100150218A1
公开(公告)日：2010-06-17
申请号：US12715092
申请日：2010-03-01
申请人： Katsuyuki Yaginuma , Tadanori Nishikobara
发明人： Katsuyuki Yaginuma , Tadanori Nishikobara
IPC分类号： H04B17/00
CPC分类号： G01R31/31709 , H03C3/095 , H03C3/0966
摘要： A jitter generation apparatus for applying a phase modulation to a PLL is controlled by a control unit so as to output a signal with the desired jitter based on a parameters. When a switching unit is switched to a first state, the control unit controls first and second level control units so that the desired jitter in which an amplitude of a first modulation signal matches the parameter is added to an output signal from a voltage controlled oscillator unit, and passes through a quadrature modulator. When the switching unit is switched to the second state, the control unit controls the first and second level control units so that a quadrature modulation is applied to a local signal, which is input to the quadrature modulator without adding any jitter to an output signal from the voltage controlled oscillator unit, and a quadrature-modulated local signal is output.
摘要翻译：用于向PLL施加相位调制的抖动产生装置由控制单元控制，以便基于参数输出具有期望抖动的信号。当切换单元切换到第一状态时，控制单元控制第一和第二电平控制单元，使得将第一调制信号的幅度与参数相匹配的期望抖动与来自压控振荡器单元的输出信号相加，并通过正交调制器。当切换单元切换到第二状态时，控制单元控制第一和第二电平控制单元，使得正交调制被施加到本地信号，该本地信号被输入到正交调制器，而不对来自输出压控振荡器单元和正交调制本地信号。

10. 发明授权

US07010444B2 Measuring apparatus and measuring method for pattern dependent jitter 失效
标题翻译：用于图形相关抖动的测量装置和测量方法
公开(公告)号：US07010444B2
公开(公告)日：2006-03-07
申请号：US10736811
申请日：2003-12-15
申请人： Tadanori Nishikobara , Kazuhiko Ishibe
发明人： Tadanori Nishikobara , Kazuhiko Ishibe
IPC分类号： G06F19/00 , G01R13/00
CPC分类号： H04L1/205 , G01R23/20 , G01R29/26
摘要： A clock generating unit generates a clock signal having a predetermined frequency. A pattern generating unit outputs a data signal having a predetermined pattern in which one frame is configured from a predetermined bit length, so as to be synchronized with the clock signal. A waveform information acquiring unit receives the data signal as a data signal to be measured, and receives the clock signal, and acquires information of waveform in the same time domain of the data signal to be measured and the clock signal. An averaging processing unit carries out averaging processing on an acquired waveform. A phase difference detecting unit detects a phase difference of the data signal to be measured and the clock signal, for each bit, based on an averaged waveform information. A frequency band limiting processing unit carries out predetermined frequency band limiting processing on the per-bit phase difference information. A measured result outputting unit outputs the phase difference information as pattern dependent jitter.
摘要翻译：时钟产生单元产生具有预定频率的时钟信号。图案生成单元输出具有预定图案的数据信号，其中从预定位长度配置一个帧，以便与时钟信号同步。波形信息获取单元接收数据信号作为要测量的数据信号，并接收时钟信号，并获取待测数据信号和时钟信号的相同时域的波形信息。平均处理单元对获取的波形执行平均处理。相位差检测单元基于平均的波形信息，针对每个位检测待测量的数据信号和时钟信号的相位差。频带限制处理单元对每位相位差信息执行预定的频带限制处理。测量结果输出单元输出相位差信息作为模式相关抖动。

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