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    • 4. 发明授权
    • Fundamental wave beat component detecting method and measuring target signal sampling apparatus and waveform observation system using the same
    • 基波分量检测方法和测量目标信号采样装置及使用其的波形观测系统
    • US08195416B2
    • 2012-06-05
    • US12308263
    • 2008-04-04
    • Yukio Tsuda
    • Yukio Tsuda
    • G01R23/16G01R23/00H04B15/00G10L19/14
    • G01R23/20G01R13/0272G01R19/2509G01R23/14
    • Frequencies of plural peak signals which appear in a band ½ of a sampling frequency are detected from a spectrum obtained from a measuring target signal sampled with the sampling frequency in order to detect the repetition frequency of the measuring target signal having plural harmonic components with a similar power. Each of the plural peak signals is successively assumed to be a fundamental wave beat component originating from the fundamental wave of the measuring target signal and theoretical frequencies of harmonic beat components originating from harmonic components of the measuring target signal are successively calculated. The theoretical frequencies are compared with the frequencies of the plural peak signals to determine one of the plural peak signals as a fundamental wave beat component originating from the fundamental wave of the measuring target signal.
    • 从采样频率采样的测量对象信号中获得的频谱中检测出出现在采样频率的1/2频带的多个峰值信号的频率,以便检测具有类似的多个谐波分量的测量目标信号的重复频率 功率。 多个峰值信号中的每一个被连续地假定为源自测量目标信号的基波的基波波形分量,并且连续地计算源自测量目标信号的谐波分量的谐波脉冲成分的理论频率。 将理论频率与多个峰值信号的频率进行比较,以确定多个峰值信号中的一个作为源自测量目标信号的基波的基波波形分量。
    • 5. 发明授权
    • Electrophotographic recording apparatus and method capable of recording
both characters and solid black picture images
    • 能够记录字符和实心黑色图像的电子照相记录装置和方法
    • US5252996A
    • 1993-10-12
    • US760016
    • 1991-09-13
    • Yukio Tsuda
    • Yukio Tsuda
    • G03G15/04G03G15/32H04N1/23H04N1/29G01D15/14
    • H04N1/295G03G15/04054G03G15/326G03G15/043
    • An electrophotographic recording apparatus includes an exposing device for exposing a photosensitive member according to image data, a developing device for developing an electrostatic latent image created on the exposed photosensitive member, and a fixing device for fixing the developed image, and the exposing device includes an image data processing circuit for converting discontinuous black-level pixels included in the pixels of the image data which is constructed by a plurality of pixels selectively including black-level pixels and white-level pixels to a white level to create processed image data, and a line scanner for line-scanning the photosensitive member by a plurality of times according to the image data and the processed imaged data each time an image of one line is created so as to create an electrostatic latent image corresponding to a combination of the image data and the processed image data on the photosensitive member.
    • 一种电子照相记录装置,包括用于根据图像数据曝光感光构件的曝光装置,用于显影在曝光的感光构件上产生的静电潜像的显影装置和用于固定显影图像的定影装置,并且曝光装置包括: 图像数据处理电路,用于将由选择性地包括黑电平像素和白电平像素的多个像素构成的图像数据的像素中包括的不连续黑电平像素转换为白电平,以创建处理后的图像数据;以及 线扫描器,用于在每次创建一行的图像时根据图像数据和处理的成像数据多次扫描感光构件,以便产生与图像数据和图像数据的组合相对应的静电潜像 处理后的图像数据在感光构件上。
    • 7. 发明授权
    • Measured-signal repetition frequency detection method, and sampling apparatus and waveform observation system using the method
    • 测量信号重复频率检测方法,采样装置和波形观测系统采用该方法
    • US07936162B2
    • 2011-05-03
    • US12224241
    • 2008-01-23
    • Yukio Tsuda
    • Yukio Tsuda
    • G01R23/00
    • G01R23/14G01R13/0272G01R19/2509
    • In a method of detecting a repetition frequency of a measured signal, in order to detect the waveform repetition frequency of the measured signal with high accuracy even in the presence of a frequency fluctuation in the measured signal, the repetition frequency of the measured signal acquired by the conventional method is used as a provisional repetition frequency, and the frequency change amount of the specified signal obtained in the case where the measured signal is sampled sequentially with a sampling frequency greatly changed from the provisional sampling frequency to generate a frequency fold at the time of sampling is detected. Based on the detected frequency change amount of the specified signal and the change amount of the sample number indicating how many times the frequency fold has occurred in the process, the error contained in the sampling number with a frequency fluctuation contained in the measured signal is calculated. Then, based on the error contained in this sample number, the provisional repetition frequency of the measured signal is corrected, thereby calculating the regular repetition frequency of the measured signal.
    • 在检测测量信号的重复频率的方法中,为了即使在存在测量信号中的频率波动的情况下也能以高精度检测测量信号的波形重复频率,测量信号的重复频率由 将常规方法用作临时重复频率,并且在以从临时采样频率大大改变的采样频率顺序采样测量信号的情况下获得的指定信号的频率变化量,以在该时间产生频率折叠 的检测。 基于检测到的指定信号的频率变化量和表示在该处理中发生频率多少倍的采样数的变化量,计算包含在测量信号中的频率波动的采样数中包含的误差 。 然后,基于该样本号中包含的误差,校正测量信号的临时重复频率,由此计算测量信号的规则重复频率。
    • 8. 发明申请
    • Measured-Signal Repetition Frequency Detection Method, and Sampling Apparatus and Waveform Observation System Using the Method
    • 测量信号重复频率检测方法以及使用该方法的采样设备和波形观测系统
    • US20100225302A1
    • 2010-09-09
    • US12224241
    • 2008-01-23
    • Yukio Tsuda
    • Yukio Tsuda
    • G01R13/00
    • G01R23/14G01R13/0272G01R19/2509
    • In a method of detecting a repetition frequency of a measured signal, in order to detect the waveform repetition frequency of the measured signal with high accuracy even in the presence of a frequency fluctuation in the measured signal, the repetition frequency of the measured signal acquired by the conventional method is used as a provisional repetition frequency, and the frequency change amount of the specified signal obtained in the case where the measured signal is sampled sequentially with a sampling frequency greatly changed from the provisional sampling frequency to generate a frequency fold at the time of sampling is detected. Based on the detected frequency change amount of the specified signal and the change amount of the sample number indicating how many times the frequency fold has occurred in the process, the error contained in the sampling number with a frequency fluctuation contained in the measured signal is calculated. Then, based on the error contained in this sample number, the provisional repetition frequency of the measured signal is corrected, thereby calculating the regular repetition frequency of the measured signal.
    • 在检测测量信号的重复频率的方法中,为了即使在存在测量信号中的频率波动的情况下也能以高精度检测测量信号的波形重复频率,测量信号的重复频率由 将常规方法用作临时重复频率,并且在以从临时采样频率大大改变的采样频率顺序采样测量信号的情况下获得的指定信号的频率变化量,以在该时间产生频率折叠 的检测。 基于检测到的指定信号的频率变化量和表示在该处理中发生频率多少次的采样数的变化量,计算包含在测量信号中的频率波动的采样数中包含的误差 。 然后,基于该样本号中包含的误差,校正测量信号的临时重复频率,由此计算测量信号的规则重复频率。
    • 9. 发明授权
    • Light wavelength measuring apparatus and method for measuring wavelength of subject light with high speed by using two-beam interferometer
    • 光波长测量装置和方法,通过使用双光束干涉仪来高速测量被摄体光的波长
    • US06697160B2
    • 2004-02-24
    • US10032186
    • 2001-12-21
    • Yukio Tsuda
    • Yukio Tsuda
    • G01B902
    • G01J9/0246
    • A two-beam interferometer splits an incident light in two optical paths, combines and outputs split lights together again. The two-beam interferometer generates at least one or more combined light made from two beams each having a polarization different from each other. A polarization state detector detects a variation in the polarization of the combined light generated by the two-beam interferometer. An electric circuit calculates an wavelength of the incident light based on the variation in the polarization detected by the polarization state detector. The two optical paths of the two-beam interferometer has a difference in length between a point of splitting the incident light and a point of combining the split lights, for the detection of polarization variation in the combined light by the polarization state detector. The optical path length difference between the two paths is fixed.
    • 双光束干涉仪将入射光分成两个光路,将分离光再次组合并输出。 双光束干涉仪产生由具有彼此偏振的两个光束制成的至少一个或多个组合光。 偏振态检测器检测由双光束干涉仪产生的组合光的偏振变化。 电路根据由偏振状态检测器检测的极化的偏差来计算入射光的波长。 双光束干涉仪的两个光路在分离入射光的点与组合分光的点之间的长度差异,用于通过偏振状态检测器检测组合光中的偏振变化。 两路径之间的光程长度差是固定的。
    • 10. 发明授权
    • Image forming apparatus using a process unit
    • 使用处理单元的图像形成装置
    • US5548374A
    • 1996-08-20
    • US467516
    • 1995-06-07
    • Michihisa IguchiYukio Tsuda
    • Michihisa IguchiYukio Tsuda
    • B41J29/20G03G15/00G03G15/08G03G15/22G03G21/00G03G21/10G03G21/16G03G21/18
    • G03G15/553G03G15/55G03G15/556G03G21/1889G03G2221/1663G03G2221/1823
    • In a recording apparatus for performing electro-static recording using toner, an image forming apparatus has a process unit including, as one unit, at least a photosensitive member and a spent toner holding section, a first counter for counting a total amount of use of the photosensitive member and a second counter for counting a total amount of toner that has been consumed. A determining section using the process unit determines the necessity for the process unit to be replaced with a new process unit by comparing a total amount of use of the photosensitive member counted by the first counter with a first predetermined reference value and the total amount of consumed toner with a second predetermined reference reference value according to whether the total amount of use of the photosensitive member exceeds the first reference value or the total amount of toner counted exceeds the second reference value.
    • 在用于使用调色剂进行静电记录的记录装置中,图像形成装置具有处理单元,该处理单元至少包括感光构件和废色调剂保持区,一个单元,用于计数总共使用量的第一计数器 感光构件和用于计算已经消耗的调色剂的总量的第二计数器。 使用处理单元的确定部分通过将由第一计数器计数的感光部件的总使用量与第一预定参考值和消耗的总量进行比较来确定处理单元被替换为新处理单元的必要性 根据感光构件的总使用量是否超过第一参考值或计数的总计量量超过第二参考值,具有第二预定参考基准值的调色剂。