ALEXANDRIA, Va., June 9 -- United States Patent no. 12,288,453, issued on April 29, was assigned to M&R Technology Inc. (San Diego).
"Safety sensors" was invented by Magid Fazel (San Diego), Jerker Taudien (Shelburne, Vt.) and Milorad Mike Terzic (Carlsbad, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed are garage door sensor systems and devices that include one or more transmitter sources configured to transmit an electromagnetic (EM) waveform and one or more receiver circuits configured to receive the electromagnetic waveform from the transmitter source. The receiver circuit is configured to determine an active duration of the received electromagnetic waveform in a predetermined detection ...