US Patent Issued to NEC on April 21 for "Monitoring optical signal arrival adjustment device, optical communication transmission path, optical communication system, and optical communication transmission path monitoring method" (Japanese Inventor)

ALEXANDRIA, Va., April 21 -- United States Patent no. 12,609,769, issued on April 21, was assigned to NEC Corp. (Tokyo).

"Monitoring optical signal arrival adjustment device, optical communication transmission path, optical communication system, and optical communication transmission path monitoring method" was invented by Ryota Abe (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A monitoring optical signal arrival adjustment device includes a first monitoring optical signal arrival adjustment unit which allows a first monitoring optical signal transmitted to a first position on a first optical transmission path to reach the first position or a second position on a second optical transmission path, and...