ALEXANDRIA, Va., June 25 -- United States Patent no. 12,341,639, issued on June 24, was assigned to InterDigital Patent Holdings Inc. (Wilmington, Del.).

"Method and apparatus for modulation of millimeter waves and preamble design" was invented by Hanqing Lou (Syosset, N.Y.), Rui Yang (Greenlawn, N.Y.), Fengjun Xi (San Diego) and Nirav B Shah (San Diego).

According to the abstract* released by the U.S. Patent & Trademark Office: "Modulating millimeter waves may be embodied via a plurality of means. In at least one embodiment of the process disclosed herein, the process includes receiving, at a transmitter, a set of bits. The process also includes generating at least two complex-valued symbols based on the set of bits using a pipelined mod...