ALEXANDRIA, Va., Sept. 15 -- United States Patent no. 12,735,314, issued on Sept. 15, was assigned to ROBERT BOSCH GMBH (Stuttgart, Germany).
"Differential drive of a sound transducer system" was invented by Raik Fiedler (Peitz, Germany), Matthias Landwehr (Munich), Ralf Hildebrandt (Munich) and Franziska Wall (Munich).
According to the abstract* released by the U.S. Patent & Trademark Office: "This invention relates to an apparatus for differentially driving an electrostatic drive unit of a microelectromechanical sound-generating device implemented in a microelectromechanical system (MEMS). The drive unit has a movable element having a first electrode, which is electrostatically drivable by a second electrode and a third electrode of the...