ALEXANDRIA, Va., March 24 -- United States Patent no. 12,587,283, issued on March 24, was assigned to NTT Inc. (Tokyo).
"Receiving apparatus and receiving method" was invented by Ryo Igarashi (Musashino, Japan) and Ryo Koma (Musashino, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "One aspect of the present invention is a receiving apparatus including a reception unit that receives signal light frequency-modulated by a signal obtained by adding a main signal and a control signal having a lower frequency than the main signal, and converts the signal light into an analog electric signal, and a processing unit that acquires a code sequence corresponding to the control signal on the basis of the analog ele...