US Patent Issued to NEC on Aug. 19 for "Optical communication system, failure analysis apparatus, and failure analysis method of optical communication system" (Japanese Inventor)

ALEXANDRIA, Va., Aug. 20 -- United States Patent no. 12,395,240, issued on Aug. 19, was assigned to NEC Corp. (Tokyo).

"Optical communication system, failure analysis apparatus, and failure analysis method of optical communication system" was invented by Shingo Kuboki (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "An object is to estimate a location where a communication failure occurs while reducing a load on an apparatus included in an upper layer in an optical communication system. Terminal stations communicate via an optical transmission line constituting an optical network and include one or more transponders. Failure cause estimation apparatuses monitors states of the transponders provided in ea...