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11. 发明授权

US4896110A Differential transformer for detecting the displacement of a probe using the combined output of two modes of operation 失效
标题翻译：差分变压器，用于使用两种工作模式的组合输出来检测探头的位移
公开(公告)号：US4896110A
公开(公告)日：1990-01-23
申请号：US223930
申请日：1988-07-25
申请人： Giichiro Shimizu , Toshiharu Okuyama , Yoshio Wakatsuki
发明人： Giichiro Shimizu , Toshiharu Okuyama , Yoshio Wakatsuki
IPC分类号： G01B7/02 , G01D5/22
CPC分类号： G01D5/2266
摘要： In a length measuring apparatus, a measurement probe includes a core and is movable in an axial direction of the probe. First to third coils are arranged in an order in a moving area of the core in accordance with the movement of the probe. In the B-phase, the first and second coils are primary and the second and third coils are secondary. In the A-phase, the second and third coils are primary and the first and second coils are secondary. CPU first sets a switch in the B-phase and then in the A-phase. A moving amount of the core is calculated from secondary voltage data in both the B-phase and the A-phase.
摘要翻译：在长度测量装置中，测量探头包括芯部并且可以在探针的轴向方向上移动。根据探针的移动，第一至第三线圈以芯的移动区域的顺序排列。在B相中，第一和第二线圈是初级的，第二和第三线圈是次级的。在A相中，第二和第三线圈是初级的，第一和第二线圈是次级的。 CPU首先在B相中设置开关，然后在A相中设置开关。从B相和A相的二次电压数据算出磁芯的移动量。

12. 发明授权

US4914610A Displacement measuring apparatus 失效
标题翻译：位移测量仪
公开(公告)号：US4914610A
公开(公告)日：1990-04-03
申请号：US223407
申请日：1988-07-25
申请人： Giichiro Shimizu , Toshiharu Okuyama , Yoshio Wakatsuki
发明人： Giichiro Shimizu , Toshiharu Okuyama , Yoshio Wakatsuki
IPC分类号： G01B7/00 , G01D3/02
CPC分类号： G01B7/00 , G01D3/022
摘要： When a probe of a displacement measuring apparatus is moved, a core member connected to the probe is also moved through coils of an oscillator. A movement distance of the probe is calculated in accordance with a change in an oscillation frequency generated in correpondence with the movement of the core member. If strict displacement measuring is to be performed, the non-linear relationship between the moving distance of the core member and the change in the oscillation frequency must be taken into account, i.e., the relationship therebetween is measured in linear manner, the movement distance is calculated and then secondary curvature correction is performed to correct for the linear measurement. Therefore, measurement precision of the displacement measuring apparatus can be greatly improved as compared to that of a conventional displacement measuring apparatus.
摘要翻译：当位移测量装置的探针移动时，连接到探针的芯构件也通过振荡器的线圈移动。根据与芯构件的移动相应产生的振荡频率的变化来计算探头的移动距离。如果要执行严格的位移测量，则必须考虑芯体的移动距离与振荡频率的变化之间的非线性关系，即以线性方式测量其间的关系，移动距离为进行二次曲率校正，以校正线性测量。因此，与传统的位移测量装置相比，位移测量装置的测量精度可以大大提高。

13. 发明授权

US4910753A FSK demodulating device 失效
标题翻译： FSK解调装置
公开(公告)号：US4910753A
公开(公告)日：1990-03-20
申请号：US234756
申请日：1988-08-22
申请人： Yoshio Wakatsuki , Hajime Takeuchi , Giichiro Shimizu
发明人： Yoshio Wakatsuki , Hajime Takeuchi , Giichiro Shimizu
IPC分类号： H03K5/08 , H04L25/03 , H04L27/14 , H04L27/156
CPC分类号： H04L27/14
摘要： An FSK shift keying device includes a detector for detecting a transmission frame consisting of a preamble, data, and a postamble, a time constant circuit charged in response to a voltage signal detected by the detector for generating a time constant, a charging voltage being determined in accordance with the time constant set in correspondence with a duration of high level in the preamble of the transmission frame, a reference voltage generator for generating a reference voltage signal having an amplitude value which is 1/2 an amplitude value of the voltage signal from the detector, and further generating a comparison reference voltage signal obtained by subtracting the reference voltage from the charging voltage, and a comparator for comparing the comparison reference voltage signal with the voltage signal input from the detector.
摘要翻译： FSK移位键控装置包括：检测器，用于检测由前导码，数据和后同步码组成的传输帧;响应于由检测器检测的用于产生时间常数的电压信号而充电的时间常数电路，确定充电电压根据与发送帧的前同步码中的高电平的持续时间设定的时间常数相对应的基准电压发生器，用于生成具有振幅值为1/2的振幅值的参考电压信号，检测器，并且还产生通过从充电电压中减去参考电压而获得的比较参考电压信号;以及比较器，用于将比较参考电压信号与从检测器输入的电压信号进行比较。

14. 发明授权

US4897857A FSK demodulating device 失效
标题翻译： FSK解调装置
公开(公告)号：US4897857A
公开(公告)日：1990-01-30
申请号：US234734
申请日：1988-08-22
申请人： Yoshio Wakatsuki , Hajime Takeuchi , Giichiro Shimizu
发明人： Yoshio Wakatsuki , Hajime Takeuchi , Giichiro Shimizu
IPC分类号： H04L25/03 , H03K5/08 , H04L7/04 , H04L27/14 , H04L27/156
CPC分类号： H04L7/044 , H04L27/156
摘要： An FSK shift keying device includes a detector for detecting a transmission frame consisting of a preamble, data, and a postamble, a leading edge detector for detecting a leading edge of a voltage signal detected by the detector, a microprocessor for receiving a detection signal output from the leading edge detector as an interrupt signal, and resetting and restarting a timer, the timer for counting a time lapse in accordance with a clock signal from a clock generator, a sample and hold circuit for holding the voltage signal output from the detector when the time lapse counted by the timer reaches a duration of the preamble, a reference voltage generator for generating a reference voltage signal having an amplitude value which is 1/2 an amplitude value of the voltage signal from the detector, and a comparator for comparing the reference voltage signal with the voltage signal from the sample and hold circuit.
摘要翻译： FSK移位键控装置包括用于检测由前导码，数据和后同步码组成的传输帧的检测器，用于检测由检测器检测到的电压信号的前沿的前沿检测器，用于接收检测信号输出的微处理器从前沿检测器作为中断信号，以及复位和重新启动定时器，用于根据来自时钟发生器的时钟信号计数时间流逝的定时器，用于保持从检测器输出的电压信号的采样和保持电路，由定时器计时的时间延迟达到前导码的持续时间;参考电压发生器，用于产生具有振幅值为来自检测器的电压信号的振幅值的参考电压信号;以及比较器，参考电压信号与采样保持电路的电压信号。

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