ALEXANDRIA, Va., July 28 -- United States Patent no. 12,694,861, issued on July 28, was assigned to Huawei Technologies'Co.'Ltd.' (Shenzhen, China).

"Headset with active noise cancellation function and active noise cancellation method" was invented by Xiaowei Yu (Shenzhen, China), Jiasheng Li (Shenzhen, China), Guopeng Wu (Shenzhen, China), Shan Ouyang (Shenzhen, China), Yulong Li (Shenzhen, China) and Fan Fan (Shenzhen, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A headset with the active noise cancellation (ANC) function includes an ANC module, a plurality of speakers, a plurality of power drive circuits, and at least one reference microphone. An output end of any one of the plurality of power dri...