ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,457,090, issued on Oct. 28, was assigned to AutoNetworks Technologies Ltd. (Yokkaichi, Japan), Sumitomo Wiring Systems Ltd. (Yokkaichi, Japan) and Sumitomo Electric Industries Ltd. (Osaka, Japan).

"Vehicle-mounted device, vehicle-mounted communication system, and time synchronization method" was invented by Tadashi Matsumoto (Yokkaichi, Japan), Kazuki Kitagawa (Yokkaichi, Japan), Kazuyuki Inoue (Yokkaichi, Japan), Yojiro Suyama (Osaka, Japan), Tatsuya Izumi (Osaka, Japan) and Hideyuki Tanaka (Osaka, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A vehicle-mounted device stores delay time information of a first set and a second set. The first set i...