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1. 发明授权

US4550382A Filtered inputs 失效
标题翻译：过滤输入
公开(公告)号：US4550382A
公开(公告)日：1985-10-29
申请号：US421006
申请日：1982-09-21
申请人： Anthony M. Federico , Ernest L. Legg , Stephen P. Wilczek , Hari K. Prasad , James J. Petery
发明人： Anthony M. Federico , Ernest L. Legg , Stephen P. Wilczek , Hari K. Prasad , James J. Petery
IPC分类号： G05B15/02 , G05B19/05 , G03G15/00 , G06F15/20
CPC分类号： G05B19/054 , G05B2219/1169 , G05B2219/15052 , G05B2219/21105
摘要： The present invention includes a plurality of input/output processors communicating with a master processor. Each of the input/output processors has a filtering mechanism to filter the inputs before transmission to the master over the communication channel precluding the necessity of filtering at the master. More importantly, the shared communications system is not loaded down with every change of an input. Because of this feature, only meaningful changes are put on the communication line, thus substantially reducing its load which makes its effective response time stay high. The inputs when received at the master can be immediately handled to improve the central processor response time. Two types of filtering are provided, in particular, transition and debounce filtering to respond to switch and sensor inputs. Also, there is provided a means to programmably select the type of filter and the time period of filtering.
摘要翻译：本发明包括与主处理器通信的多个输入/输出处理器。每个输入/输出处理器具有滤波机制，用于在通过通信信道发送到主机之前对输入进行滤波，排除在主机处必须进行滤波。更重要的是，共享通信系统不会随着输入的每一个变化而被加载。由于这个特征，通信线上只有有意义的变化，从而大大降低了负载，使得其有效响应时间保持较高。可以立即处理在主站处接收到的输入，以改善中央处理器的响应时间。提供两种类型的滤波，特别是转换和去抖动滤波以响应开关和传感器输入。另外，提供了可编程选择滤波器的类型和滤波时间的方法。

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