US Patent Issued to Infinera on Oct. 7 for "Frequency division multiple access optical subcarriers" (California Inventors)

ALEXANDRIA, Va., Oct. 8 -- United States Patent no. 12,438,619, issued on Oct. 7, was assigned to Infinera Corp. (San Jose, Calif.).

"Frequency division multiple access optical subcarriers" was invented by Jeffrey T. Rahn (Sunnyvale, Calif.), Kuang-Tsan Wu (Kanata, Calif.), Steven J. Hand (Los Gatos, Calif.) and David F. Welch (Atherton, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A network or system in which a hub or primary node may communicate with a plurality of leaf or secondary nodes. The hub node may operate or have a capacity greater than that of the leaf nodes. Accordingly, relatively inexpensive leaf nodes may be deployed to receive data carrying optical signals from, and supply data carr...