ALEXANDRIA, Va., Sept. 17 -- United States Patent no. 12,418,388, issued on Sept. 16, was assigned to Comcast Cable Communications LLC (Philadelphia).

"Transmitting signals using directional diversity over a network" was invented by David Urban (Downingtown, Pa.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Methods and systems are disclosed for using a common frequency spectrum for simultaneous upstream and downstream communications in a network by implementing directional diversity techniques. Non-reciprocal coupling devices, such as circulators, may be configured in the network to provide unidirectional transmission of each signal to prevent interference. In some embodiments, feed-forward interference can...