公开(公告)号：US4931972A

公开(公告)日：1990-06-05

申请号：US198055

申请日：1988-05-24

申请人： Yoshimori Obata ,  Makoto Toko

发明人： Yoshimori Obata ,  Makoto Toko

IPC分类号： H03H17/02

CPC分类号： H03H17/0292 ,  H03H2218/06

摘要： A multiple-input digital filter capable of filtering a plurality of digital input signals with a single filtering device first latches the input signals and then sequentially selects each of the digital input signals for output to a counter circuit. The counter circuit, which is preset by the previous count value for the corresponding digital input signal, counts up or down depending on the digital input signal. When the count value reaches its maximum, a decision value signal is set for the corresponding digital input signal until the count value for that digital input signal returns to the minimum value. The count values are stored in a shift register which supplies the count value corresponding to the digital input signal as a preset value to the counter. A second shift register stores the decision values corresponding to each of the digital input signals which are then latched for simultaneous output.

摘要翻译： 能够利用单个滤波装置对多个数字输入信号进行滤波的多输入数字滤波器首先锁存输入信号，然后顺序地选择每个数字输入信号以输出到计数器电路。 由相应的数字输入信号的先前计数值预置的计数器电路根据数字输入信号向上或向下计数。 当计数值达到最大值时，为相应的数字输入信号设置一个判定值信号，直到该数字输入信号的计数值返回到最小值。 计数值存储在移位寄存器中，该移位寄存器将与数字输入信号相对应的计数值作为预设值提供给计数器。 第二移位寄存器存储对应于每个数字输入信号的判定值，然后锁存用于同时输出。

公开(公告)号：US06301509B1

公开(公告)日：2001-10-09

申请号：US09148693

申请日：1998-09-04

申请人： Yoshimori Obata

发明人： Yoshimori Obata

IPC分类号： G05B1101

CPC分类号： G05B19/054 ,  G05B2219/1105 ,  G05B2219/1109 ,  G05B2219/1111 ,  G05B2219/15018 ,  G05B2219/15108 ,  G05B2219/15111

摘要： The invention is aimed at providing a programmable logic control system capable of executing a plurality of functions to realize high-speed data communication between itself and a control input/output unit without degrading the performance of the programmable logic control system, thereby significantly enhancing the performance and simplifying maintenance. To attain the aim, the programmable logic control system comprises a plurality of separate modules obtained by grouping the operating sections and the input/output sections of the controllers in the form of separate modules, and mounted on a back board. On the back board, there is also provided a control input/output unit connector. A signal is used for the control input/output unit connector connected parallel to the separate modules via the back board, so that communication can be performed, during use of a bus, between the separate modules and the control input/output unit.

摘要翻译： 本发明的目的在于提供一种能够执行多个功能以实现其与控制输入/输出单元之间的高速数据通信的可编程逻辑控制系统，而不降低可编程逻辑控制系统的性能，从而显着提高性能 并简化维护。 为了达到目的，可编程逻辑控制系统包括通过以分开的模块的形式对控制器的操作部分和输入/输出部分进行分组并安装在背板上而获得的多个单独的模块。 在背板上还提供了一个控制输入/输出单元连接器。 一个信号用于通过背板并联连接到单独模块的控制输入/输出单元连接器，从而可以在使用总线期间在单独的模块和控制输入/输出单元之间进行通信。