ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,389,162, issued on Aug. 12, was assigned to Vibrant Microsystems Inc. (Cupertino, Calif.).
"Integrated MEMS electrostatic micro-speaker device and system" was invented by Sanjay Bhandari (Cupertino, Calif.) and Ali Joseph Rastegar (Palo Alto, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "In an example, the present invention provides a micro-speaker device. The device has a movable diaphragm device comprising a thickness of silicon or graphene material which has a first surface and a second surface opposite of the first surface and sensor to track position of the diaphragm. The device has a housing enclosing the movable diaphragm device, the elec...