ALEXANDRIA, Va., April 21 -- United States Patent no. 12,610,169, issued on April 21, was assigned to AAC ACOUSTIC TECHNOLOGIES (SHENZHEN) Co. LTD. (Shenzhen, China).

"Microphone module" was invented by Dexing Wang (Shenzhen, China), Jinyu Zhang (Shenzhen, China), Yuanhua Tang (Shenzhen, China) and Shaoping Huang (Shenzhen, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure discloses a microphone module including at least two MEMS microphones, a printed circuit board, and a shell, each of the MEMS microphones is provided a sound inlet hole, a plurality of first sound pickup holes are provided on the printed circuit board, a plurality of second sound pickup holes are provided on the s...