ALEXANDRIA, Va., March 5 -- United States Patent no. 12,244,348, issued on March 4, was assigned to Nokia Solutions and Networks Oy (Espoo, Finland).
"System and method for multimodulation in a passive optical network" was invented by Doutje Van Veen (New Providence, N.J.), Amitkumar Mahadevan (Edison, N.J.) and Vincent Houtsma (New Providence, N.J.).
According to the abstract* released by the U.S. Patent & Trademark Office: "An optical line terminal (OLT) in flexible passive optical network (PON) transmits a downstream signal with two or more modulation formats, wherein at least one of the modulation formats is a modified PAMx modulation format and wherein x is greater than 2. The modified PAMx modulation encodes data bits such that the ...