ALEXANDRIA, Va., Aug. 25 -- United States Patent no. 12,720,258, issued on Aug. 25, was assigned to Tencent Technology Co. Ltd. (Shenzhen, China).
"Multi-channel echo cancellation method and related apparatus" was invented by Rui Zhu (Shenzhen, China), Zhipeng Liu (Shenzhen, China) and Yuepeng Li (Shenzhen, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A multi-channel echo cancellation method includes obtaining far-end audio signals outputted by channels, obtaining a filter coefficient matrix corresponding to a kth frame of microphone signal outputted by a target microphone and including frequency domain filter coefficients of filter sub-blocks corresponding to the channels, performing frame-partition...