US 12,439,495 B2
Power line communication to control lighting
Desheng Wang, Diamond Bar, CA (US)
Assigned to Focus Universal, Inc., Ontario, CA (US)
Filed by Focus Universal Inc., Ontario, CA (US)
Filed on Jun. 19, 2023, as Appl. No. 18/211,462.
Application 18/211,462 is a continuation of application No. 17/749,132, filed on May 19, 2022, granted, now 11,683,875.
Claims priority of provisional application 63/190,445, filed on May 19, 2021.
Prior Publication US 2024/0155755 A1, May 9, 2024
Int. Cl. H05B 47/185 (2020.01); H05B 47/105 (2020.01)
CPC H05B 47/185 (2020.01) [H05B 47/105 (2020.01)] 16 Claims
OG exemplary drawing
 
1. A system for controlling devices via power line communication, comprising:
a control device configured to generate one or more commands for a plurality of components;
a first transceiver electrically connected to the control device, the first transceiver configured to generate a signal with a transmission frequency, to output a first signal that is a copy of the generated signal, to output a second signal that is a phase-shifted copy of the generated signal, and to switch between sending the first signal and the second signal to create a control signal, the control signal encoding a command of the one or more commands generated by the control device;
a power line electrically connected to the first transceiver, the power line carrying an electrical power signal and the control signal; and
the plurality of components electrically connected to the power line, each of the plurality of components including:
a second transceiver;
a filter configured to filter a bandwidth centered around the transmission frequency; and
a processor configured to decode the control signal generated by the control device,
wherein the control signal encodes a message comprising a command of the one or more commands and an identifier that identifies a component of the plurality of components,
wherein a component of the plurality of components corresponding to the identifier is configured to execute the command in the message encoded by the control signal,
wherein a second component of the plurality of components that does not correspond to the identifier is configured to ignore the command in the message encoded by the control signal.