US Patent Issued to NTT on April 7 for "Subscriber apparatus, optical communication system and optical signal monitoring method" (Japanese Inventor)

ALEXANDRIA, Va., April 7 -- United States Patent no. 12,598,000, issued on April 7, was assigned to NTT Inc. (Tokyo).

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

According to the abstract* released by the U.S. Patent & Trademark Office: "A subscriber device in an optical communication system including a subscriber device, a user device connected to the subscriber device, an optical switch that relays an optical signal transmitted from the subscriber device to a destination device, a wavelength control unit that allocates a wavelength to the subscriber device, and an optical switch control unit that controls the optical switch such that the opt...