ALEXANDRIA, Va., March 24 -- United States Patent no. 12,587,769, issued on March 24, was assigned to AAC ACOUSTIC TECHNOLOGIES (SHENZHEN) Co. LTD. (Shenzhen, China).
"Waterproof microphone device" was invented by Jinyu Zhang (Shenzhen, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention provides a waterproof microphone device installed on a vehicle body. The vehicle body includes a frame having a circular opening. The waterproof microphone device includes an outer housing, a circuit board, a microphone, a cover, a first waterproof membrane, and a casing. An inner wall of the frame forming the opening gradually slopes inwardly from an outer surface to an inner surface of the frame. The...