ALEXANDRIA, Va., Sept. 15 -- United States Patent no. 12,736,649, issued on Sept. 15, was assigned to QUALCOMM Inc. (San Diego).
"Round-trip phase ranging in the presence of deep fade" was invented by Marwen Zorgui (San Diego), Sony Akkarakaran (Poway, Calif.) and Yiyue Chen (San Diego).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method for determining a range estimate includes: transmitting, from a first apparatus, a plurality of first signals with respective frequencies spanning a frequency band; receiving first phase measurement information, from a second apparatus; receiving, at the first apparatus from the second apparatus, a plurality of second signals with respective frequencies; measuring, at the...