ALEXANDRIA, Va., April 7 -- United States Patent no. 12,598,423, issued on April 7, was assigned to xMEMS Labs Inc. (Santa Clara, Calif.).
"Smart volume controller and method thereof" was invented by Jemm Yue Liang (Sunnyvale, Calif.) and Yanchen Lu (Campbell, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A controller configured to control a sound producing module includes a volume controlling unit configured to determine a demodulation amplitude and a modulation amplitude corresponding to a target volume. The sound producing module comprises a driving circuit and an air-pulse generating device. The driving circuit generates a demodulation driving signal according to the demodulation amplitude and ge...