ALEXANDRIA, Va., June 16 -- United States Patent no. 12,309,540, issued on May 20, was assigned to GUANGDONG DINGCHUANG SMART MANUFACTURING Co. LTD. (Dongguan, China).

"Microphone" was invented by Jun Lu (Guangdong, China), Shangjing Li (Guangdong, China), Weirong Li (Guangdong, China) and Hong Zhou (Guangdong, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A microphone a shell assembly, a sound pickup assembly, a control assembly and a light-emitting assembly. The shell assembly includes an outer shell with a first accommodating chamber, wherein the outer shell has light transmittance. The sound pickup assembly includes a microphone head for sound pickup, wherein the microphone head is arranged on the...