US Patent Issued to NTT on Aug. 25 for "Wavelength cross connect device, and wavelength cross connect method" (Japanese Inventors)

ALEXANDRIA, Va., Aug. 25 -- United States Patent no. 12,720,239, issued on Aug. 25, was assigned to NTT Inc. (Tokyo).

"Wavelength cross connect device, and wavelength cross connect method" was invented by Masahiro Nakagawa (Musashino, Japan), Hiroki Kawahara (Musashino, Japan) and Takeshi Seki (Musashino, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A wavelength cross connect device includes: a plurality of input-side WSSes each configured to split a wavelength multiplexed signal beam into a predetermined number of wavelength multiplexed signal beams; a plurality of wavelength band switch processing units provided for each of the input-side WSSes and each configured to convert optical signals of dist...