ALEXANDRIA, Va., June 18 -- United States Patent no. 12,328,449, issued on June 10, was assigned to BEIJING BYTEDANCE NETWORK TECHNOLOGY Co. LTD. (Beijing) and BYTEDANCE INC. (Los Angeles).

"Signalling of auxiliary information" was invented by Ye-Kui Wang (San Diego), Li Zhang (San Diego), Kai Zhang (San Diego) and Zhipin Deng (Beijing).

According to the abstract* released by the U.S. Patent & Trademark Office: "Systems, methods and apparatus for encoding, decoding or transcoding digital video are described. One example method of processing video data includes performing a conversion between a video and a bitstream of the video according to a format rule, wherein the format rule specifies that a supplemental enhancement information field ...