ALEXANDRIA, Va., June 6 -- United States Patent no. 12,284,477, issued on April 22, was assigned to SHENZHEN SHOKZ Co. LTD. (Shenzhen, China).
"Acoustic output apparatus" was invented by Guangyuan Zhu (Shenzhen, China), Lei Zhang (Shenzhen, China), Junjiang Fu (Shenzhen, China), Xin Qi (Shenzhen, China) and Qingyi Wang (Shenzhen, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "An acoustic output apparatus is provided. The acoustic output apparatus may include a vibration assembly and a mass element. The vibration assembly may include a piezoelectric structure and a vibration element. The piezoelectric structure may be configured to convert an electrical signal into mechanical vibrations, and the vibrati...