ALEXANDRIA, Va., April 2 -- United States Patent no. 12,267,521, issued on April 1, was assigned to PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA (Torrance, Calif.).
"Encoding method, decoding method, encoder, and decoder" was invented by Ryuichi Kanoh (Osaka, Japan), Tadamasa Toma (Osaka, Japan), Kiyofumi Abe (Osaka, Japan) and Takahiro Nishi (Nara, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An encoder includes circuitry and memory. Using the memory, the circuitry performs a primary transform on a derived prediction error, performs a secondary transform on a result of the primary transform, quantizes a result of the secondary transform, and encodes a result of the quantization as data of ...