ALEXANDRIA, Va., Nov. 6 -- United States Patent no. 12,461,392, issued on Nov. 4, was assigned to Goertek Inc. (Shandong, China).
"Smart head-mounted device" was invented by Tongyan Xu (Weifang, China) and Chengxiang Zhai (Weifang, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed is a smart head-mounted device, and the smart head-mounted device comprises at least one lens and at least one arm, the arm is connected to the lens and has a cavity therein; further comprises a sound production apparatus provided inside the cavity and dividing the cavity into a front acoustic cavity and a back acoustic cavity; a sound outlet and a main sound leakage hole provided on the arm, the sound outlet is in com...