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公开(公告)号：US4689540A
公开(公告)日：1987-08-25
申请号：US862205
申请日：1986-05-12
申请人： Zempei Tani , Kenji Hachimura , Noboru Kawai
发明人： Zempei Tani , Kenji Hachimura , Noboru Kawai
CPC分类号： G05B19/232 , G05B2219/42104 , Y10S388/904 , Y10S388/911 , Y10S388/922
摘要： A position control system for positioning a D.C. motor at a desired position operates in a speed detection mode in which the D.C. motor is driven to rotate at a predetermined high speed, and in a position detection mode wherein the position of the D.C. motor is precisely controlled. In the speed detection mode, the control circuit forms a phase-locked-loop (PLL) control circuit which compares the phases of the speed instructing pulse signal and the rectangular signal derived from the actual rotation of the D.C. motor. The motor speed is controlled in accordance with the phase difference between the speed instructing pulse signal and the rectangular signal derived from the actual rotation of the D.C. motor.
摘要翻译： 用于将直流电动机定位在期望位置的位置控制系统以直流电动机以预定高速驱动的速度检测模式运行，并且在位置检测模式中，直流电动机的位置被精确控制 。 在速度检测模式中，控制电路形成锁相环（PLL）控制电路，其比较速度指令脉冲信号的相位和从直流电动机的实际旋转导出的矩形信号。 根据速度指令脉冲信号和从直流电动机的实际转动得到的矩形信号之间的相位差来控制电动机速度。
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2.发明授权Optical rotary encoder employing plural photosensors disposed in a specific arrangement 失效使用以特定布置布置的多个光电传感器的光学旋转编码器
公开(公告)号：US4975569A
公开(公告)日：1990-12-04
申请号：US503097
申请日：1990-03-30
申请人： Koyoshi Ebina , Sadaaki Fujii , Zempei Tani
发明人： Koyoshi Ebina , Sadaaki Fujii , Zempei Tani
CPC分类号： G01D5/36 , G01D5/34715
摘要： An optical rotary encoder includes four photosensor elements aligned in a square fashion. A first pair of diagonally aligned photosensor elements develop output signals of inverse phase with respect to each other as a slit plate rotates. The thus obtained output signals are applied to a comparator to obtain a first control signal. A second pair of diagonally aligned photosensor elements develop output signals of inverse phase with respect to each other as the slit plate rotates. The output signals from the second pair of photosensor elements are applied to another comparator to obtain a second control signal.
摘要翻译： 光学旋转编码器包括以正方形排列的四个光电传感元件。 当狭缝板旋转时，第一对对角线对准的光电传感器元件相对于彼此产生反相的输出信号。 将这样获得的输出信号施加到比较器以获得第一控制信号。 当狭缝板旋转时，第二对对角线对准的光电传感器元件相对于彼此产生反相的输出信号。 来自第二对光电传感器元件的输出信号被施加到另一比较器以获得第二控制信号。
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公开(公告)号：US4588936A
公开(公告)日：1986-05-13
申请号：US615750
申请日：1984-05-31
申请人： Hiromu Itoh , Zempei Tani , Kenji Hachimura
发明人： Hiromu Itoh , Zempei Tani , Kenji Hachimura
CPC分类号： G05B19/39
摘要： A D.C. motor position control system operates either in the motor speed detection mode or in the motor position detection mode. A rotary encoder develops an approximate sinusoidal position indicating analog signal in response to the rotation of the D.C. motor. A waveform shaping circuit receives the approximate sinusoidal position indicating analog signal and develops a rectangular position indicating digital signal to a phase comparator which compares the phase of the rectangular position indicating digital signal with the phase of a speed instructing pulse signal so as to control the motor speed in a phase-locked-loop (PLL) manner in the motor speed detection mode. A slice level determination circuit divides the voltage level of the approximate sinusoidal position indicating analog signal into 16 (sixteen) degrees to obtain a sliced position indicating digital signal which is used to control the motor position in the motor position detection mode.
摘要翻译： 直流电动机位置控制系统在电动机速度检测模式或电动机位置检测模式下运行。 旋转编码器响应于直流电动机的旋转而产生指示模拟信号的近似正弦位置。 波形整形电路接收指示模拟信号的近似正弦位置，并将指示数字信号的矩形位置显示给相位比较器，该相位比较器将指示数字信号的矩形位置的相位与速度指令脉冲信号的相位进行比较，以便控制电动机 在电机速度检测模式下以锁相环（PLL）方式进行速度调节。 限幅电平确定电路将指示模拟信号的近似正弦位置的电压电平分为16（16）度，以获得用于在电动机位置检测模式中控制电动机位置的数字信号的切片位置。
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公开(公告)号：US4309604A
公开(公告)日：1982-01-05
申请号：US60189
申请日：1979-07-24
申请人： Toshihumi Yoshikawa , Zempei Tani , Akira Aso , Hitoshi Kawanabe
发明人： Toshihumi Yoshikawa , Zempei Tani , Akira Aso , Hitoshi Kawanabe
IPC分类号： G01J1/44 , G01J3/427 , G01J3/50 , G01J9/00 , G06K7/12 , H01L25/04 , H01L31/02 , H01L31/11 , G01J1/42 , G01J3/46 , H01L27/14
CPC分类号： H01L31/11 , G01J1/44 , G01J3/427 , G01J9/00 , G06K7/12 , H01L25/043 , H01L31/02019 , G01J2003/466 , G01J3/50 , H01L2924/0002 , H01L2924/3011
摘要： Disclosed is a solid state wavelength detection system responding to output signals derived from a photoelectric semiconductor device. The photoelectric semiconductor device comprise at least two PN junctions formed at different depth from the surface of the semiconductor substrate. A deeper PN junction develops an output signal related to longer wavelength component of the light impinging thereon. A shallower PN junction develops an output signal related to shorter wavelength component of the impinging light. These two output signals are logarithmically compressed and compared with each other. Difference of the logarithmically compressed output signals represents the wavelength information of the impinging light.
摘要翻译： 公开了一种响应于从光电半导体器件得到的输出信号的固态波长检测系统。 光电半导体器件包括形成在与半导体衬底的表面不同深度的至少两个PN结。 更深的PN结产生与其上的光的较长波长分量相关的输出信号。 较浅的PN结产生与入射光的较短波长分量有关的输出信号。 这两个输出信号被对数压缩并相互比较。 对数压缩输出信号的差异表示入射光的波长信息。
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公开(公告)号：US4692025A
公开(公告)日：1987-09-08
申请号：US734341
申请日：1985-05-14
申请人： Zempei Tani , Yoshifumi Masuda , Toshihide Miyake
发明人： Zempei Tani , Yoshifumi Masuda , Toshihide Miyake
IPC分类号： G01J5/60
CPC分类号： G01J5/60 , G01J2005/607
摘要： In a semiconductor color sensor circuit with two photodiodes having mutually different wavelength sensitivity characteristics, the ratio of numbers or areas of two types of transistors for logarithmic compression of signals from these photodiodes is adjusted so that errors in output voltage due to changes in temperature can be reduced and the dynamic range of illuminance of incident light can be enlarged.
摘要翻译： 在具有两个具有相互不同的波长灵敏度特性的光电二极管的半导体颜色传感器电路中，调整来自这些光电二极管的信号的对数压缩的两种晶体管的数量或面积的比率，使得由于温度变化引起的输出电压误差可以是 降低了入射光的照度的动态范围。
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公开(公告)号：US4654525A
公开(公告)日：1987-03-31
申请号：US521933
申请日：1983-08-10
申请人： Kiyoshi Ebina , Kazuhira Nakao , Zempei Tani
发明人： Kiyoshi Ebina , Kazuhira Nakao , Zempei Tani
CPC分类号： G01D5/24476 , G01D5/36 , G01P3/486 , H03M1/30
摘要： An optical rotary encoder includes a slit plate having a plurality of circumferentially aligned slits of a pitch P, a light emitting diode, and a light responsive section. The light responsive section includes four photodiodes formed on a single substrate. The four photodiodes are aligned in the tangential direction of the slit plate with the interval corresponding to 1/4 P. Output signals derived from each of the four photodiodes are introduced into a detection circuit for determining the angular position and velocity of a rotating shaft to which the slit plate is secured.
摘要翻译： 光学旋转编码器包括具有间距P，发光二极管和光响应部分的多个周向排列的狭缝的狭缝板。 光响应部分包括形成在单个基板上的四个光电二极管。 四个光电二极管在狭缝板的切线方向上以对应于1/4的间隔对准。从四个光电二极管中的每一个导出的输出信号被引入检测电路，用于确定旋转轴的角位置和速度 狭缝板被固定。
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公开(公告)号：US4620094A
公开(公告)日：1986-10-28
申请号：US617351
申请日：1984-06-05
申请人： Zempei Tani , Kiyoshi Ebina , Osamu Ichikawa , Mamoru Imaizumi
发明人： Zempei Tani , Kiyoshi Ebina , Osamu Ichikawa , Mamoru Imaizumi
CPC分类号： G01D5/34715
摘要： Disclosed is a photoelectric encoder for providing an electrical pulse signal corresponding to the rotational position and direction of a disk rotor. The encoder possesses a feedback means including a second light sensitive means and associated circuit for obtaining the stabilized output signal thereof in spite of the fluctuation of the power source voltage and/or ambient temperature or adhesion of extraneous substances to light emitting and/or sensing elements and others.
摘要翻译： 公开了一种用于提供与盘转子的旋转位置和方向对应的电脉冲信号的光电编码器。 编码器具有包括第二光敏装置和相关电路的反馈装置，用于获得其稳定的输出信号，尽管电源电压和/或环境温度的波动或外来物质与发光和/或感测元件的粘附 和别的。
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公开(公告)号：US4318115A
公开(公告)日：1982-03-02
申请号：US60188
申请日：1979-07-24
申请人： Toshihumi Yoshikawa , Zempei Tani , Akira Aso , Hitoshi Kawanabe
发明人： Toshihumi Yoshikawa , Zempei Tani , Akira Aso , Hitoshi Kawanabe
CPC分类号： H01L31/02019 , H01L25/043 , H01L31/11 , H01L2924/0002
摘要： A photoelectric semiconductor device is disclosed which exhibits a reduced spectral sensitivity in a desired wavelength zone. An N(P) type impurity region is formed in a P(N) type semiconductor substrate to establish a first PN junction functioning as a first photodiode. A P(N) type impurity region is shallowly formed in the N(P) type impurity region to establish a second PN junction functioning as a second photodiode. When the first PN junction is shunted, the photoelectric semiconductor device shows a spectral sensitivity which is reduced in the longer wavelength zone. Contrarily, when the second PN junction is shunted, the photoelectric semiconductor device shows the spectral sensitivity which is reduced in the shorter wavelength zone.
摘要翻译： 公开了一种光电半导体器件，其在期望的波长区域中具有降低的光谱灵敏度。 在P（N）型半导体衬底中形成N（P）型杂质区，以建立用作第一光电二极管的第一PN结。 在N（P）型杂质区域中浅层形成P（N）型杂质区，以建立起第二光电二极管的第二PN结。 当第一PN结分流时，光电半导体器件显示在较长波长区域中减小的光谱灵敏度。 相反，当第二PN结分流时，光电半导体器件显示在较短波长区域中减小的光谱灵敏度。
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公开(公告)号：US4614874A
公开(公告)日：1986-09-30
申请号：US571187
申请日：1984-01-16
申请人： Hiroaki Fukuda , Kenji Sumiyoshi , Ryoichi Masaki , Zempei Tani
发明人： Hiroaki Fukuda , Kenji Sumiyoshi , Ryoichi Masaki , Zempei Tani
CPC分类号： G03G15/607
摘要： An arrangement for detecting sizes of original documents for use in a copying apparatus or the like, which is capable of effecting size detection at high reliability irrespective of thicknesses of original documents, and in which an adverse effect due to cross-talk light by neighboring light emitting elements employed in it is eliminated for detection of various sizes based on presence of correct original documents.
摘要翻译： 用于检测在复印装置等中使用的原稿的尺寸的装置，其能够以高可靠性进行尺寸检测，而与原始文件的厚度无关，并且其中由相邻光的串扰光引起的不利影响 根据正确的原始文件的存在，消除了在其中使用的发光元件用于检测各种尺寸。
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