US Patent Issued to NEC on Oct. 27 for "Optical signal monitoring apparatus, optical signal monitoring system, and optical signal monitoring method" (Japanese Inventor)

ALEXANDRIA, Va., Oct. 27 -- United States Patent no. 12,776,835, issued on Oct. 27, was assigned to NEC Corp. (Tokyo).

"Optical signal monitoring apparatus, optical signal monitoring system, and optical signal monitoring method" was invented by Ryota Abe (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "An optical signal monitoring apparatus is used in an optical submarine cable system in which a first branch line is connected to a transmission line being connected to a predetermined terminal station provided in a trunk line, and a second branch line is connected to a reception line being connected to the terminal station. In the optical signal monitoring apparatus, a first extraction unit selectively ex...