US Patent Issued to Infinera on March 18 for "Frequency division multiple access optical subcarriers" (California Inventors)

ALEXANDRIA, Va., March 19 -- United States Patent no. 12,255,731, issued on March 18, was assigned to Infinera Corp. (Sunnyvale, Calif.).

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