ALEXANDRIA, Va., June 17 -- United States Patent no. 12,317,034, issued on May 27, was assigned to xMEMS Labs Inc. (Santa Clara, Calif.).
"Air-pulse generating device with tooth edge patterned slit" was invented by Jemm Yue Liang (Sunnyvale, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "An air-pulse generating device includes a film structure including a first flap and a second flap opposite to each other. The film structure is actuated to operate at an ultrasonic frequency, and the air-pulse generating device produces a plurality of air pulses at an ultrasonic pulse rate. The first flap and the second flap are actuated to perform a differential movement to form an opening or a virtual valve. A slit ...