ALEXANDRIA, Va., July 14 -- United States Patent no. 12,684,172, issued on July 14, was assigned to MediaTek Inc. (Hsinchu City, Taiwan).
"Method and apparatus for sign coding of transform coefficients in video coding system" was invented by Shih-Ta Hsiang (Hsinchu City, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method and apparatus for joint sign prediction of transform coefficients. At the encoder side, a maximum number is determined according to coding context of the current block. A set of jointly predicted coefficient signs associated with a set of selected transform coefficients is determined where a total number of the set of jointly predicted coefficient signs is equal to or smaller tha...