ALEXANDRIA, Va., March 26 -- United States Patent no. 12,262,009, issued on March 25, was assigned to TENCENT AMERICA LLC (Palo Alto, Calif.).
"Tile and sub-picture partitioning" was invented by Byeongdoo Choi (Palo Alto, Calif.), Stephan Wenger (Hillsborough, Calif.) and Shan Liu (San Jose, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Systems and methods for decoding are provided, a method includes: encoding a first sub-picture of a picture, independently from a second sub-picture of the picture, using sub-picture, tile group, and tile partitioning: and sending, to at least one decoder, at least one coded sub-bitstream of a coded video stream that includes the first sub-picture and the second sub-p...