ALEXANDRIA, Va., June 18 -- United States Patent no. 12,327,567, issued on June 10, was assigned to Huawei Technologies Co. Ltd. (Shenzhen, China).
"Downmixed signal calculation method and apparatus" was invented by Haiting Li (Beijing), Zexin Liu (Beijing) and Bin Wang (Shenzhen, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "This application discloses a downmixed signal calculation method and apparatus. The method includes: when a current frame or a previous frame of the current frame of a stereo signal is not a switching frame and a residual signal in the current frame or the previous frame does not need to be encoded, obtaining a second downmixed signal in the current frame and a downmix compensati...