ALEXANDRIA, Va., March 26 -- United States Patent no. 12,262,056, issued on March 25, was assigned to Canon K.K. (Tokyo).

"Image decoding apparatus, image decoding method, and storage medium" was invented by Masato Shima (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A decoding unit decodes data corresponding to an NxM array of quantized coefficients from a bit stream. An inverse quantization unit derives orthogonal transform coefficients from the NxM array of quantized coefficients by using at least a quantization matrix. An inverse orthogonal transform unit performs inverse orthogonal transform on the orthogonal transform coefficients generated by the inverse quantization unit to generate prediction...