ALEXANDRIA, Va., July 16 -- United States Patent no. 12,363,482, issued on July 15, was assigned to AAC ACOUSTIC TECHNOLOGIES (SHENZHEN) Co. LTD. (Shenzhen, China) and AAC Microtech (Changzhou) Co. Ltd. (Changzhou, China).

"Sounding device" was invented by Wei Song (Shenzhen, China), Xin Jin (Shenzhen, China), Fan Zhang (Shenzhen, China), Ronglin Linghu (Shenzhen, China) and Bo Xiao (Shenzhen, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention provides a sounding device including a housing body having a containment cavity and a sounding unit placed in the containment cavity. The sounding unit includes a vibration system and a magnetic circuit system. The sounding device includes a box...