ALEXANDRIA, Va., July 23 -- United States Patent no. 12,368,889, issued on July 22, was assigned to Apple Inc. (Cupertino, Calif.).
"Coefficient-based transform and mode signaling" was invented by Alican Nalci (Cupertino, Calif.), Yunfei Zheng (Santa Clara, Calif.), Hilmi E. Egilmez (Santa Clara, Calif.), Yeqing Wu (Cupertino, Calif.), Yixin Du (Cupertino, Calif.), Alexandros Tourapis (Los Gatos, Calif.), Jun Xin (San Jose, Calif.) and Hsi-Jung Wu (San Jose, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Techniques are described for express and implied signaling of transform mode selections in video coding. Information derived from coefficient samples in a given transform unit (TU) or prediction unit ...