ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,425,613, issued on Sept. 23, was assigned to Sharp K.K. (Sakai, Japan).
"Image decoding apparatus and image coding apparatus" was invented by Tianyang Zhou (Sakai, Japan), Tomohiro Ikai (Sakai, Japan), Eiichi Sasaki (Sakai, Japan) and Tomoko Aono (Sakai, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided are an image decoding apparatus (31) and an image coding apparatus (11) in which both transform precision and residual coding efficiency are preferable. Included are a TU decoder (3024) configured to decode, from coded data, a syntax element representing an absolute value of a transform coefficient, a scaling unit (311) configured to multipl...