ALEXANDRIA, Va., July 3 -- United States Patent no. 12,345,567, issued on July 1, was assigned to NEC Corp. (Tokyo).

"Road surface conditions detection by distributed optic fiber system" was invented by Yuheng Chen (South Brunswick, N.J.), Ming-Fang Huang (Princeton, N.J.), Ting Wang (West Windsor, N.J.) and Jingnan Zhao (Edison, N.J.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A fiber optic sensing cable located along a side of a paved road and runs parallel to a driving direction is monitored by distributed fiber optic sensing (DFOS) using Rayleigh backscattering generated along the length of the optical sensor fiber cable under dynamic vehicle loads. The interaction of vehicles with roadway locations e...