ALEXANDRIA, Va., Sept. 1 -- United States Patent no. 12,726,273, issued on Sept. 1, was assigned to BRITISH TELECOMMUNICATIONS PLC (London).

"Telecommunications network" was invented by Marco Menchetti (London), Fraser Burton (London), Liam Bussey (London), Md Asif Iqbal (London) and Amelia Winterburn (London).

According to the abstract* released by the U.S. Patent & Trademark Office: "This disclosure provides a method of operating a central node in a telecommunications network, the telecommunications network including an optical network and a plurality of distributed nodes each configured to use a first optical signal at a first wavelength, the method including producing a first optical signal at a second wavelength; directing the first ...