US Patent Issued to Cisco Technology on June 16 for "Detecting programmable logic controller configuration changes using spectral analysis" (French Inventors)

ALEXANDRIA, Va., June 16 -- United States Patent no. 12,659,251, issued on June 16, was assigned to Cisco Technology Inc. (San Jose, Calif.).

"Detecting programmable logic controller configuration changes using spectral analysis" was invented by Yohann Hako Moukam (Lyons, France), Olivier Cedric Guilhem Calvet (Miribel, France) and Oualid Koucham (Oullins, France).

According to the abstract* released by the U.S. Patent & Trademark Office: "In one embodiment, a process observes a communication network with automated systems for packet relative arrival times between a pair of devices having stable or periodic communications within the communication network. The process performs a spectral analysis on the packet relative arrival times betwee...