ALEXANDRIA, Va., March 24 -- United States Patent no. 12,583,739, issued on March 24, was assigned to AAC Kaitai Technologies (Wuhan) Co. LTD. (Wuhan, China).
"MEMS speaker" was invented by Qiang Dan (Wuhan, China), Linxin Zhang (Wuhan, China), Yufen Chu (Wuhan, China), Yao Hui (Wuhan, China) and Yang Li (Wuhan, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure provides a MEMS speaker including a supporting member, a diaphragm used for emitting an amplitude-modulated ultrasonic wave, and an acoustic valve. The supporting member includes a supporting body and an acoustic hole, the acoustic valve includes a valve body fixed with a peripheral side of the supporting body and located in ...