Patent ID: 11910508
Assignee: LUTRON TECHNOLOGY COMPANY LLC
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 6:
7. A method to control an electric power device, comprising:
supplying, by controller circuitry via electrical wiring, a periodic voltage to an electric power device, the controller circuitry couplable between a power source and the electric power device;
transmitting, by the controller circuitry, a forward digital message to the electric power device by encoding digital information in timing edges of the periodic voltage;
transmitting, by the controller circuitry, a short pattern that allows the electric power device to synchronize to a frequency of the periodic voltage prior to the electric power device transmitting a reverse digital message to the controller circuitry;
performing, by the controller circuitry, error detection on the reverse digital message received from the electric power device;
transmitting, by the controller circuitry, a retry pattern to the electric power device responsive to detection of an error in the reverse digital message; and
receiving, by the controller circuitry, a retransmitted reverse digital message from the electric power device responsive to the receipt of the retry pattern by the electric power device.