Patent ID: 9599638
Date: 2017-03-21
CPC Classifications: G01D,G01R,Y04S

Claim:
1. A circuit arrangement for use in a utility meter; a mechanical switch having a closed position and an open position, the mechanical switch configured to be at least temporarily in the closed position when a meter cover is moved, the mechanical switch configured to be in the open position when the meter cover is installed on the meter base, the mechanical switch operably coupled to generate a close signal when the mechanical switch is in the closed position; a first circuit output operably coupled to receive the close signal; a latch circuit operably coupled to receive the close signal, the latch circuit configured to generate a latched signal responsive to receiving the close signal, the latched signal latched for a predetermined time; and a second circuit output operably coupled to receive the latched signal wherein the predetermined time corresponds to a wake-up time of a processing circuit, said wake-up time including at least time to power up an oscillator circuit of the processing circuit and at least time sufficient for stabilization of the oscillator circuit.