ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,770,808, issued on Oct. 20, was assigned to AAC Acoustic Technologies (Shanghai) Co. Ltd. (Shanghai).
"Conjoined key structure and electronic device" was invented by Chengxiang Shu (Shanghai).
According to the abstract* released by the U.S. Patent & Trademark Office: "A conjoined key structure and an electronic device is described. The conjoined key structure includes a support frame with an accommodating groove, a first and second piezoelectric transducers fixedly accommodated in the accommodating groove and spaced from each other, pressure sensors fixedly accommodated in the accommodating groove and located between the first and second piezoelectric transducers, and a key covering ...