G - Physics
03
G
314/7
G03G 15/00 (2006.01) G05B 19/05 (2006.01)
Patent
CA 1213308
ABSTRACT OF THE DISCLOSURE The present invention includes a plurality of input/output pro- cessors communicating with a master processor. Each of the input/output processors has a filtering mechanism to filter the inputs before transmission tothe 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.
435726
Federico Anthony M.
Legg Ernest L.
Petery James J.
Prasad Hari K.
Wilczek Stephen P.
Sim & Mcburney
Xerox Corporation
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