ALEXANDRIA, Va., June 19 -- United States Patent no. 12,335,680, issued on June 17, was assigned to AAC Microtech (Changzhou) Co. Ltd. (Changzhou, China).
"Speaker" was invented by Zhouye Xie (Changzhou, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A speaker includes a housing with an accommodating space and a sounder fixed in the accommodating space. A diaphragm is provided in the sounder, the diaphragm divides the accommodating space into a front cavity and a rear cavity, a sound hole communicating with the front cavity and the outside, and a leakage hole communicating with the rear cavity and the outside are formed in the housing. The leakage hole includes a first through hole communicating with t...