ALEXANDRIA, Va., March 17 -- United States Patent no. 12,581,072, issued on March 17, was assigned to TENCENT AMERICA LLC (Palo Alto, Calif.).

"L-type partitioning tree" was invented by Xin Zhao (Palo Alto, Calif.), Liang Zhao (Palo Alto, Calif.) and Shan Liu (Palo Alto, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An example method of video decoding includes receiving a video bitstream comprising a plurality of blocks, including a current block. The method also includes performing a first partitioning of the current block such that the current block is partitioned into a first rectangular partition and an L-shaped partition, where the first rectangular partition has a same aspect ratio as the curre...