US Patent Issued to NEC on Aug. 25 for "Signal processing apparatus, optical transmitting apparatus, optical receiving apparatus, optical transmission system, and signal processing method" (Japanese Inventors)

ALEXANDRIA, Va., Aug. 25 -- United States Patent no. 12,719,583, issued on Aug. 25, was assigned to NEC Corp. (Tokyo).

"Signal processing apparatus, optical transmitting apparatus, optical receiving apparatus, optical transmission system, and signal processing method" was invented by Masaki Sato (Tokyo) and Junichi Abe (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A signal processing apparatus (10) according to the present disclosure includes: an overlap-type FFT processing unit (11) that performs FFT processing overlapping input subcarrier signals each other for each of FFT blocks, and a generation unit (12) that generates a signal which is obtained by frequency shifting the subcarrier signals that ...