ALEXANDRIA, Va., June 19 -- United States Patent no. 12,335,710, issued on June 17, was assigned to AAC Technologies (Nanjing) Co. Ltd. (Nanjing, China).
"Multifunctional sounding device" was invented by Lubin Mao (Nanjing, China), Ziang Li (Nanjing, China), Jie Ma (Nanjing, China), Yun Tang (Nanjing, China) and Dong Lu (Nanjing, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "The multifunctional sounding device provided by the present disclosure includes a housing body, a sounding unit and a vibration assembly. The sounding unit includes a frame, a vibration system fixed on the frame, and a magnetic circuit system that drives the vibration system to vibrate and produce sound in a first direction. The v...