ALEXANDRIA, Va., Feb. 11 -- United States Patent no. 12,549,891, issued on Feb. 10.
"Acoustic devices with directional reinforcement" was invented by You Qian (Singapore), Rakesh Kumar (Singapore), Guofeng Chen (Fremont, Calif.), Myeong Gweon Gu (Seoul, South Korea), Myung Hyun Park (Seongnam-si, South Korea), Jae Hyung Lee (Seoul, South Korea) and Michael Jon Wurtz (Lake Oswego, Ore.).
According to the abstract* released by the U.S. Patent & Trademark Office: "An acoustic sensor (e.g., for use in a piezoelectric MEMS microphone) includes a substrate and a cantilever beam attached to the substrate. The cantilever beam has a proximal portion attached to the substrate and a distal portion that extends from the proximal portion to a free end...