ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,425,114, issued on Sept. 23, was assigned to QUALCOMM Inc. (San Diego).
"Barrier type detection using time-of-flight and receive signal strength indication" was invented by Xiaoxin Zhang (Sunnyvale, Calif.), Edwin Chongwoo Park (San Diego) and Bala Ramasamy (San Marcos, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Techniques are provided for utilizing wireless devices to detect and classify barriers between devices. An example method for detecting a change in state of a physical environment includes determining a first state of the physical environment based on one or more round trip time measurements and one or more received signal strength m...