ALEXANDRIA, Va., June 25 -- United States Patent no. 12,342,146, issued on June 24, was assigned to GOERTEK INC. (Weifang, China).
"Sound generating device module" was invented by Qizhong Wang (Shandong, China) and Zongjun Mou (Shandong, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed in the present application is a sound generating device module, comprising: a housing having a cavity therein; a frame fixedly provided in the cavity, a high-pitch sound generating unit and a low-pitch sound generating unit are respectively provided on two opposite sides of the frame; a baffle plate is provided on a side of the housing corresponding to the high-pitch sound generating unit, and the baffle plate an...