ALEXANDRIA, Va., June 9 -- United States Patent no. 12,652,403, issued on June 9, was assigned to PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA (Torrance, Calif.).

"Encoder, decoder, encoding method, and decoding method" was invented by Takahiro Nishi (Nara, Japan), Tadamasa Toma (Osaka, Japan) and Kiyofumi Abe (Osaka, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An encoder includes circuitry and memory coupled to the circuitry. In operation, the circuitry (i) sets a parameter to a value indicating that a multilayer is not allowed, the parameter indicating whether the multilayer is allowed, and (ii) sets first identifiers to an identical value indicating a layer, the first identifiers respec...