ALEXANDRIA, Va., Sept. 10 -- United States Patent no. 12,412,438, issued on Sept. 9, was assigned to ASSA ABLOY AB (Stockholm).
"Beacon circuit for use with electronic locks" was invented by Tomas Jonsson (Ronninge, Sweden) and Fredrik Einberg (Huddinge, Sweden).
According to the abstract* released by the U.S. Patent & Trademark Office: "It is provided a beacon circuit for use with electronic locks. The beacon circuit comprises a transmitter. The beacon device is configured to repetitively transmit a beacon signal to initiate subsequent communication with a receiver. The energy use for the beacon signal employs a communication channel which consumes less power than a communication channel for the subsequent communication. The beacon signa...