ALEXANDRIA, Va., Nov. 6 -- United States Patent no. 12,461,191, issued on Nov. 4, was assigned to Koko Home Inc. (Los Angeles).

"Person location determination using multipath" was invented by Itay Cnaan-On (Palo Alto, Calif.), Ali Rostami (Palo Alto, Calif.), Bradley Michael Eckert (Palo Alto, Calif.) and Saurabh Gupta (Palo Alto, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "In one aspect, a method of determining a location of a user within an indoor space, includes emitting a radiofrequency signal into the indoor space, receiving backscattered training radiofrequency signals, including multipath, for at least one location within the indoor space, converting the received training signals into a poin...