Communications: electrical – Condition responsive indicating system – With particular system function
Patent
1984-08-27
1987-02-24
Crosland, Donnie L.
Communications: electrical
Condition responsive indicating system
With particular system function
340512, 340513, G08B 2900
Patent
active
046460659
ABSTRACT:
A fault tolerant control system employing input sensing network and in association therewith a signal processing system which eliminates the effect of radiofrequency interference, electromagnetic interference, transients, and random false alarm signals. The sensing network comprises a linear circuit or a resistor disposed in parallel with one or more semiconductors which are preferably diodes or the like. The network senses current flow so as to provide a signal having a maximum voltage established by the semiconductors with the linear circuit or network providing a linear change in voltage with current until the voltage of the semiconductor is reached when the voltage then becomes non-linear.
REFERENCES:
patent: 3716834 (1973-02-01), Adams
patent: 4423410 (1983-12-01), Galvin et al.
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