ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,452,446, issued on Oct. 21, was assigned to Tencent America LLC (Palo Alto, Calif.).
"Joint motion vector difference coding" was invented by Liang Zhao (Sunnyvale, Calif.), Xin Zhao (San Jose, Calif.) and Shan Liu (San Jose, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "This disclosure relates encoding and decoding of motion vector difference in for inter-predicting a video block. An example is disclosed for decoding an inter-predicted video block of a video stream. The method includes receiving a coded video bitstream; extracting, from the coded video bitstream, an inter-predication mode and a joint delta motion vector (MV) for a current block ...