Boots – shoes – and leggings
Patent
1989-01-27
1990-10-23
Lall, Parshotam S.
Boots, shoes, and leggings
364178, 364574, G06F 700
Patent
active
049657550
ABSTRACT:
The present invention is a method and apparatus for monitoring a plurality of AC input signals to a control system. An AC interrupt signal is generated, based on an AC system signal which is substantially phase-synchronous with the AC input signals, for an interrupt time period corresponding to a time period when the AC system signal exceeds a predetermined threshold voltage. The AC interrupt signal is verified and a timer is set for a pseudo-random time value. The AC input signals are sampled when the timer has reached the pseudo-random time value to determine the presence or absence of valid AC input signals.
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Kidder Kenneth B.
Patton Paul B.
Honeywell Inc.
Lall Parshotam S.
Zanelli Michael
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