ALEXANDRIA, Va., July 23 -- United States Patent no. 12,368,876, issued on July 22, was assigned to PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA (Torrance, Calif.).

"Encoder, decoder, encoding method, and decoding method" was invented by Tadamasa Toma (Osaka, Japan), Takahiro Nishi (Nara, Japan) and Kiyofumi Abe (Osaka, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An encoder includes circuitry and memory. Using the memory, the circuitry: in an inter prediction mode in which an affine motion vector is calculated for each of sub-blocks constituting a current block of a picture in the video, based on motion vectors of neighboring blocks of the current block, changes a shape or size of the sub-...