ALEXANDRIA, Va., Jan. 29 -- United States Patent no. 12,210,086, issued on Jan. 28, was assigned to Google LLC (Mountain View, Calif.).

"Smart-device-based radar system performing location tagging" was invented by Dongeek Shin (Santa Clara, Calif.) and Ivan Poupyrev (Los Altos, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Techniques and apparatuses are described that implement a smart-device-based radar system capable of performing location tagging. The radar system has sufficient spatial resolution to recognize different external environments associated with different locations (e.g., recognize different rooms or different locations within a same room). Using the radar system, the smart device can ...