ALEXANDRIA, Va., April 9 -- United States Patent no. 12,272,364, issued on April 8, was assigned to Huawei Technologies'Co.'Ltd.' (Guangdong, China).
"Audio signal encoding method and apparatus, and audio signal decoding method and apparatus" was invented by Dejun Zhang (Shenzhen, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "An audio signal encoding method and apparatus, and an audio signal decoding method and apparatus, are described. The encoding method includes obtaining a target frequency-domain coefficient of a current frame and a reference target frequency-domain coefficient of the current frame. The encoding method further includes calculating a cost function based on the target frequency-doma...