ALEXANDRIA, Va., Dec. 2 -- United States Patent no. 12,488,776, issued on Dec. 2, was assigned to Huawei Technologies Co. Ltd. (Shenzhen, China).

"Active noise cancellation method, device, and system" was invented by Libin Zhang (Beijing), Tingqiu Yuan (Shenzhen, China) and Huimin Zhang (Shenzhen, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present discloser relates to a method for active noise cancellation. An example method includes: capturing an ambient sound to determine an ambient audio signal; and determining a working status, determining at least one corresponding wanted signal based on the working status, and then removing the at least one wanted signal from the ambient audio signal, to ...