ALEXANDRIA, Va., Feb. 24 -- United States Patent no. 12,560,693, issued on Feb. 24, was assigned to Panasonic Automotive Systems Co. Ltd. (Kanagawa, Japan).
"Wireless system" was invented by Shinya Ota (Kanagawa, Japan), Shigetomo Tamoi (Kanagawa, Japan) and Genki Saito (Kanagawa, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A wireless system capable of accurately and inexpensively measuring a distance between a vehicle and a mobile terminal is provided. When a first sum of a first received signal strength indication and a second received signal strength indication is larger than a second sum of a third received signal strength indication and a fourth received signal strength indication, a distance b...