ALEXANDRIA, Va., June 9 -- United States Patent no. 12,286,342, issued on April 29, was assigned to INVENSENSE INC. (San Jose, Calif.).
"Constant charge or capacitance for capacitive micro-electrical-mechanical system sensors" was invented by Joseph Seeger (Menlo Park, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Embodiments for constant charge or capacitance for capacitive micro-electro-mechanical system (MEMS) sensors are presented herein. A MEMS device comprises a sense element circuit comprising a bias resistance, a charge-pump, and a capacitive sense element comprising an electrode and a sense capacitance. The charge-pump generates, at a bias resistor electrically coupled to the electrode, a bi...