ALEXANDRIA, Va., July 16 -- United States Patent no. 12,362,831, issued on July 15, was assigned to Nippon Telegraph and Telephone Corp. (Tokyo).

"Optical main signal processing node apparatus and control method of optical main signal processing node apparatus" was invented by Kota Asaka (Musashino, Japan), Keita Nishimoto (Musashino, Japan), Yukio Toyoshima (Musashino, Japan), Takashi Yamada (Musashino, Japan) and Junichi Kani (Musashino, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "One aspect of the present invention is a optical main signal processing node apparatus including: an input port for inputting an optical multiplexed with signals pertaining to a plurality of services from an optical tran...