US Patent Issued to QUALCOMM on Dec. 2 for "Ultrasonic fingerprint sensor with passive and active common mode cancellation" (California Inventors)

ALEXANDRIA, Va., Dec. 2 -- United States Patent no. 12,488,613, issued on Dec. 2, was assigned to QUALCOMM Inc. (San Diego).

"Ultrasonic fingerprint sensor with passive and active common mode cancellation" was invented by Efthymios Philip Papageorgiou (Berkeley, Calif.), Jessica Liu Strohmann (Cupertino, Calif.), Jae Hyeong Seo (Pleasanton, Calif.), Hrishikesh Vijaykumar Panchawagh (Cupertino, Calif.) and Kostadin Dimitrov Djordjev (Los Gatos, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An apparatus for common mode noise cancellation in an ultrasonic fingerprint sensor comprising a resistor-inductor-capacitor (RLC) network, a piezoelectric layer, a pixel array electrically coupled with the RLC netw...