US Patent Issued to Hitachi on June 23 for "Control device, unauthorized command detection method, and program" (Japanese Inventors)

ALEXANDRIA, Va., July 15 -- United States Patent no. 12,664,257, issued on June 23, was assigned to Hitachi Ltd. (Tokyo).

"Control device, unauthorized command detection method, and program" was invented by Yuki Tanaka (Tokyo), Kotaro Shimamura (Tokyo) and Teruaki Sakata (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention aims to provide a control device that reduces load and can provide early detection of program tampering. A main storage unit 102 stores a main application 107 and illegal command information 108. The main application 107 is an extension program in which target commands, which are at least some of the commands included in a prescribed program, have been converted into...