Filtered inputs

Details Filtered inputs Filtered inputs

1982-09-21

1985-10-29

Wise, Edward J.

Boots, shoes, and leggings

364138, 364525, 355 14C, G03G 1500, G06F 1520

Patent

active

045503826

ABSTRACT:
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.

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