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    • 3. 发明授权
    • Synchronous control device
    • 同步控制装置
    • US06417643B1
    • 2002-07-09
    • US09838855
    • 2001-04-20
    • Noriyuki ShibaToru AkiyamaMasakatsu FujitaHiroyuki HisadaIkuo Kotani
    • Noriyuki ShibaToru AkiyamaMasakatsu FujitaHiroyuki HisadaIkuo Kotani
    • H02P146
    • B41F13/0045B41P2213/734H02P5/56
    • A synchronous control device according to the present invention completes an origin matching between a master section and a slave section without causing a phase difference even when a deceleration device is employed in the master section or in the slave section so as to perform an accurate synchronous control. The synchronous control device constantly detects the phase of a shaft of a master electric motor by a phase detector of the master electric motor according to the outputs of a master rotary encoder, and the phase of a shaft of the master machine by a phase detector of the shaft of the master machine according to the outputs of a master rotary encoder and an origin detector of the shaft of the master machine. In the same manner, the phase of a shaft of a slave electric motor is constantly detected by a phase detector of the slave electric motor according to the outputs of a slave rotary encoder, and the phase of a shaft of a slave machine is constantly detected by a phase detector of the shaft of the slave machine according to the outputs of a slave rotary encoder and an origin detector of the shaft of the slave machine. Then a first phase deviation between the shaft of the master machine and shaft of the slave machine by a first phase deviation detector, and a second phase deviation between the master electric motor and the slave electric motor by a second phase deviation detector for the electric motors are calculated. After an origin between the shaft of the master machine and the shaft of the slave machine is matched based on the first phase deviation, continuously an origin between the master electric motor and the slave electric motor is matched based on the second phase deviation so as to perform the synchronous control.
    • 根据本发明的同步控制装置即使在主部分或从部分中采用减速装置也完成了主部分和从部分之间的原点匹配而不引起相位差,从而执行精确的同步控制 。 同步控制装置通过主电动机的相位检测器根据主旋转编码器的输出来不断地检测主电动机的轴的相位,主机的轴的相位通过相位检测器 主机的轴根据主旋转编码器的输出和主机轴的原点检测器。 以同样的方式,由从动电动机的相位检测器根据从动旋转编码器的输出不断地检测从动电动机的轴的相位,并且不断地检测从机的轴的相位 根据从动旋转编码器的输出和从机的轴的原点检测器,通过从机的轴的相位检测器。 然后通过第一相位偏差检测器,主机的轴与从机的轴之间的第一相位偏移,以及通过用于电动机的第二相位偏差检测器在主电动机和从动电动机之间的第二相位偏差 被计算。 在主机的轴与从机的轴之间的起点基于第一相位偏差匹配之后,基于第二相位偏差来连续地使主电动机和从动电动机之间的原点相匹配,从而 执行同步控制。
    • 8. 发明授权
    • Pulse signal delay circuit
    • 脉冲信号延迟电路
    • US06567490B1
    • 2003-05-20
    • US09273182
    • 1999-03-19
    • Koji HayashiToru Akiyama
    • Koji HayashiToru Akiyama
    • H03D324
    • H03K5/135H03K5/133
    • A pulse delay circuit includes a delay circuit, a plurality of selectors and a plurality of synchronous circuits. The delay circuit includes a plurality of series connected delay elements for delaying a clock signal and generating a plurality of delay clock signals. Each of the selectors is connected to the plurality of delay elements and selects one of the plurality of the delay clock signals in accordance with an associated selection signal. The plurality of synchronous circuits receive pulse signals and the selected delay clock signals and generating a plurality of synchronous pulse signals that are synchronized with the selected delay clock signals, respectively.
    • 脉冲延迟电路包括延迟电路,多个选择器和多个同步电路。 延迟电路包括多个串联连接的延迟元件,用于延迟时钟信号并产生多个延迟时钟信号。 每个选择器连接到多个延迟元件,并根据相关选择信号选择多个延迟时钟信号中的一个。 多个同步电路分别接收脉冲信号和所选择的延迟时钟信号并产生与所选择的延迟时钟信号同步的多个同步脉冲信号。
    • 10. 发明授权
    • Improved definition television set with external luminance and
chrominance signal inputs
    • 改进了具有外部亮度和色度信号输入的定义电视机
    • US4882625A
    • 1989-11-21
    • US271580
    • 1988-11-15
    • Toru Akiyama
    • Toru Akiyama
    • H04N11/20H04N7/015H04N9/64H04N11/04
    • H04N9/646
    • An improved definition television (IDTV) set including a motion sensing circuit for sensing motion of images and generating a motion sensing signal, a motion adaptive Y/C separating circuit separating a composite video signal into a luminance signal and a chrominance signal on the basis of the motion sensing signal, chroma demodulation and matrix circuit generating three primary color signals of red, green, and blue from separate luminance and chrominance signals separated at the Y/C separating circuit, and a motion adaptive scanning line converting circuit for converting a line scanning method of the three primary color signals to a progressive line scanning, while effecting a field or line interpolation operation to the three primary color signals. The television set is characterized by a first selector for alternatively supplying external luminance and chrominance signals supplied from the outside or the separate luminance and chrominance signals to the chroma demodulation and matrix circuit, and a second selector for alternatively supplying, the external luminance signal or a summing signal of said external luminance and chrominance signals, or the composite video signal to the motion sensing circuit.
    • 一种改进的清晰度电视(IDTV)集合,其包括用于感测图像的运动和产生运动感测信号的运动感测电路,基于复合视频信号将复合视频信号分离为亮度信号和色度信号的运动自适应Y / C分离电路 运动感测信号,色度解调和矩阵电路,从在Y / C分离电路分离的分离的亮度和色度信号产生红色,绿色和蓝色的三原色信号,以及运动自适应扫描线转换电路,用于转换线扫描 同时对三原色信号进行场或线插值操作,将三原色信号的方法转换为逐行扫描。 该电视机的特征在于:第一选择器,用于从外部提供外部亮度和色度信号,或将单独的亮度和色度信号提供给色度解调和矩阵电路;以及第二选择器,用于交替地提供外部亮度信号或 所述外部亮度和色度信号的合成信号,或复合视频信号到运动感测电路。