ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,455,668, issued on Oct. 28, was assigned to AMAZON TECHNOLOGIES INC. (Seattle).

"Energy efficiency of antennas as sensors (A2S) systems" was invented by Nicholas Evangelos Buris (Chicago).

According to the abstract* released by the U.S. Patent & Trademark Office: "Technologies directed to an energy efficient technique for Antennas as Sensors (A2S) systems used for detecting user input events are described. One electronic device includes a wireless communication component coupled to an antenna via a radio frequency (RF) path, and an RF switch selectively coupling the A2S system to the RF path. The radio sends RF signals to the antenna via the RF path in a first time window. The RF swi...