ALEXANDRIA, Va., June 10 -- United States Patent no. 12,293,754, issued on May 6, was assigned to BESTECHNIC (SHANGHAI) Co. LTD. (Shanghai).
"Active noise control method and system for headphone" was invented by Qian Li (Shanghai), Zhicong Wang (Shanghai) and Xingqiang Wu (Shanghai).
According to the abstract* released by the U.S. Patent & Trademark Office: "In certain aspects, an active noise control (ANC) method and system for a headphone are disclosed. It is determined whether a music signal is played by a speaker of the headphone. Responsive to the music signal not being played by the speaker and a noise level of an ambient noise signal being greater than a noise threshold, a set of noise feedforward (FF) signals is obtained based on ...