US Patent Issued to NIPPON TELEGRAPH AND TELEPHONE on July 29 for "Optical communication apparatus, optical communication system and optical communication method" (Japanese Inventor)

ALEXANDRIA, Va., July 30 -- United States Patent no. 12,375,838, issued on July 29, was assigned to NIPPON TELEGRAPH AND TELEPHONE Corp. (Tokyo).

"Optical communication apparatus, optical communication system and optical communication method" was invented by Manabu Yoshino (Musashino, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An optical communication device includes: an optical switch configured to output an optical signal input from one transmission line to another transmission line among a plurality of transmission lines; and a control unit configured to control the optical switch such that a wavelength in accordance with a subscriber device and a transmission destination on a path of a communic...