Patent ID: 7215245
Filing Date: 2007-05-08
Classification: G08B

Abstract:
1. An activator circuit responsive to power line disturbance, said activator circuit comprising of: a power line interface circuit, means for connecting the input of said power line interface circuit to the power line, a signal conditioning circuit, means for connecting the output of said power line interface circuit to input of said signal conditioning circuit, a threshold detector circuit, means for connecting the output of said signal conditioning circuit to input of said threshold detector circuit, a pulse train comparator circuit, means for connecting the output of said threshold detector circuit to input of said pulse train comparator circuit, an output circuit, means for connecting the output of said pulse train comparator circuit to input of said output circuit, wherein said pulse train comparator circuit will activate or de-activate said output circuit depending on a comparison of the input signal of said pulse train comparator circuit to a plurality of internally stored pulse trains representations.