ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,388,538, issued on Aug. 12, was assigned to INVENSENSE INC. (San Jose, Calif.).

"Utilization of microphone ultrasonic response" was invented by Jeremy Parker (Chelmsford, Mass.) and Stephen Bart (West Newton, Mass.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Utilization of microphone ultrasonic response is described. A system, comprising: a microelectromechanical system (MEMS) microphone device configured to capture signal data representing an ultrasonic signal and an audio-band signal simultaneously, and a processing circuitry configured to adjust a configuration parameter associated with the MEMS microphone device based on the ultrasonic signal." ...