Patent ID: 11869341
Assignee: NICOR, INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 0:
1. An electronic door chime comprising:
a back cover comprising a first compartment and a second compartment;
a front cover attached to the back cover to thereby form a housing that is configured to be installed in a dual voltage box;
a power supply in the first compartment configured to receive mains electric power and to produce a doorbell current; and
a first circuit that is in the second compartment and that includes a chiming circuit, a doorbell connector, an inductor, and a monitor circuit;
wherein the monitor circuit is connected in parallel to the inductor;
wherein the doorbell current includes an inductor current that passes through the inductor and a monitor current that passes through the monitor circuit;
wherein the inductor current passes into the doorbell connector, then through an external doorbell device, then back through the doorbell connector to thereby power the external doorbell device when the external doorbell device is connected to the doorbell connector;
wherein the monitor circuit produces a trigger sensed signal upon detecting actuation of the external doorbell device; and
wherein the chiming circuit sends a sound signal to a speaker upon receiving the trigger sensed signal to thereby cause the speaker to produce a sound.