ALEXANDRIA, Va., Sept. 17 -- United States Patent no. 12,416,700, issued on Sept. 16, was assigned to Socionext Inc. (Kanagawa, Japan).
"Estimation method and estimation device" was invented by Koichiro Tanaka (Yokohama, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An estimation method includes: receiving, by first and second antennas, radio waves including reflected radio waves that are radio waves transmitted from a transmitting antenna and reflected by a target; calculating a phase difference between first received radio waves that are radio waves received by the first antenna in the receiving and second received radio waves that are radio waves received by the second antenna in the receiving; cal...