US Patent Issued to NEC on May 19 for "Optical fiber sensor and change detection method" (Japanese Inventors)

ALEXANDRIA, Va., May 19 -- United States Patent no. 12,631,521, issued on May 19, was assigned to NEC Corp. (Tokyo).

"Optical fiber sensor and change detection method" was invented by Wataru Kohno (Tokyo) and Tomoyuki Hino (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "The optical fiber sensor includes a setting unit which sets a section to be evaluated set in the optical fiber to one of a first section and a plurality of second sections, each of which is shorter than the first section, an extraction unit which extracts a state change of light from the optical fiber, and a detection unit which detects a change in the surrounding environment based on time-series data of the state change of light in the...