ALEXANDRIA, Va., July 16 -- United States Patent no. 12,671,946, issued on June 30, was assigned to TEXAS INSTRUMENTS Inc. (Dallas).
"Piezoelectric audio device" was invented by Bichoy Bahr (Allen, Texas), Udit Rawat (Dallas), Mohit Chawla (Bangalore, India) and Yogesh Ramadass (San Jose, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "In one example, an audio device includes a substrate, a first piezoelectric flap, a second piezoelectric flap, a transmit circuit, a first receive circuit, a switch circuit, and a second receive circuit. The substrate has an opening. The first piezoelectric flap has a first end on the substrate and extending over the opening, the first piezoelectric flap having first and...