Polling method and apparatus

Details Polling method and apparatus Polling method and apparatus

1991-06-12

1992-03-31

Yusko, Donald J.

Communications: electrical

Continuously variable indicating

With meter reading

34082512, H04B 1700

Patent

active

051011999

ABSTRACT:
When an interrupt request to a control unit occurs, the control unit polls a plurality of interrupt request terminal interfaces to locate which of the interrupt request terminal interfaces has generated the interrupt request. The control unit polls the plurality of interrupt request terminal interfaces in groups of several interrupt terminal interfaces to locate a group to which the interrupt request terminal interface has generated the interrupt request belongs, and polls only the respective interrupt requests terminal interfaces belonging to the located group to thereby locate the generated source of the interrupt request. Each interrupt request terminal interface generates an interrupt request as vector data indicative of contents directly corresponding to each interrupt condition.

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patent: 4390750 (1983-06-01), Bartelink
patent: 4528422 (1985-07-01), Cupani
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patent: 4586040 (1986-04-01), Akiba et al.
patent: 4644109 (1987-02-01), Takeda et al.
patent: 4667193 (1987-05-01), Cotie et al.

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