ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,771,771, issued on Oct. 20, was assigned to VIVO MOBILE COMMUNICATION Co. LTD. (Guangdong, China).
"Electronic device" was invented by Guozhu Jiang (Guangdong, China) and Fengliang Li (Guangdong, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "An electronic device. The electronic device includes: a housing, where a sound intake hole is provided on the housing, and the housing includes an inner cavity; and a microphone and a balance valve are arranged inside the housing. The microphone is in communication with the sound intake hole through a first sound guide channel, the balance valve is in communication with the sound intake hole through a second ...