ALEXANDRIA, Va., April 7 -- United States Patent no. 12,594,943, issued on April 7, was assigned to Hitachi Astemo Ltd. (Hitachinaka, Japan).

"Arithmetic processing device, vehicle control device, and update method" was invented by Yusuke Kogure (Ibaraki, Japan) and Shun Kinugasa (Ibaraki, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "When a control program is updated by a device that can select and execute one of two control programs, an amount of data to be transferred is reduced to shorten time required for update of a program. A first rewritable storage unit that stores two programs, a CPU that selects and executes one of the two programs, and a second rewritable storage unit that stores common da...