ALEXANDRIA, Va., March 19 -- United States Patent no. 12,256,195, issued on March 18, was assigned to SHENZHEN SHOKZ Co. LTD. (Shenzhen, China).
"Acoustic output device" was invented by Guangyuan Zhu (Shenzhen, China), Lei Zhang (Shenzhen, China) and Xin Qi (Shenzhen, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "One or more embodiments of the present disclosure relates to an acoustic output device, including: a piezoelectric element configured to convert an electrical signal into a mechanical vibration; an elastic element; and a mass element connected to the piezoelectric element through the elastic element. The mass element may be configured to receive the mechanical vibration and generate an acoust...