ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,771,450, issued on Oct. 20, was assigned to NTT Inc. (Tokyo).
"Optical transmission system, optical transmission method, and relay amplifier" was invented by Megumi Hoshi (Musashino, Japan), Koki Shibahara (Musashino, Japan), Shimpei Shimizu (Musashino, Japan) and Yutaka Miyamoto (Musashino, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An optical transmission system comprising: an optical transmitter; an optical receiver; and a relay amplification device for amplifying and relaying an optical signal, in which the optical transmitter and the relay amplification device are connected by a first multi-core fiber, the optical receiver and the relay a...