US Patent Issued to NEC on March 24 for "Optical receiver, optical transmitter, and optical reception method" (Japanese Inventor)

ALEXANDRIA, Va., March 24 -- United States Patent no. 12,587,278, issued on March 24, was assigned to NEC Corp. (Tokyo).

"Optical receiver, optical transmitter, and optical reception method" was invented by Yasushi Hara (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "In order to detect occurrence of an influence on quality of an optical signal due to a non-linear effect of an optical fiber, an optical receiver includes: a demodulation unit that demodulates a received optical signal and outputs a reception signal, and calculates a quality value indicating quality of the optical signal; an extraction unit that extracts, from the reception signal, transmission power being a value indicating optical power ...