ALEXANDRIA, Va., July 16 -- United States Patent no. 12,671,937, issued on June 30, was assigned to MERRY ELECTRONICS (SUZHOU) Co. LTD. (Jiangsu Province, China).
"Miniature loudspeaker" was invented by Jingui Wang (Jiangsu Province, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A miniature loudspeaker comprises a housing, a magnetic circuit system arranged in the accommodating space of the housing and provided with a first tuning hole, a vibration system arranged at the opening of the housing and including a voice coil and a diaphragm which provided with a second tuning hole, a damper provided with a third tuning hole, and a control circuit. Two ends of the damper are respectively connected with the ...