ALEXANDRIA, Va., June 9 -- United States Patent no. 12,651,608, issued on June 9, was assigned to Shenzhen Shokz Co. Ltd. (Shenzhen, China).
"Voice activity detection method and system, and voice enhancement method and system" was invented by Le Xiao (Shenzhen, China), Chengqian Zhang (Shenzhen, China), Fengyun Liao (Shenzhen, China) and Xin Qi (Shenzhen, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "Microphone signals output by the microphone array satisfy a first model corresponding to a noise signal or a second model corresponding to a target voice signal mixed with a noise signal. A method and system may optimize the first model and the second model respectively by using maximization of a likeliho...