ALEXANDRIA, Va., Dec. 23 -- United States Patent no. 12,505,847, issued on Dec. 23, was assigned to ORANGE (Issy-les-Moulineaux, France).
"Optimized encoding of rotation matrices for encoding a multichannel audio signal" was invented by Stephane Ragot (Chatillon, France).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method for encoding a multichannel sound signal, a corresponding decoding method, an encoding device and a decoding device. The encoding method includes: forming a transformation matrix in the form of a rotation matrix to be applied to the input signals; quantifying the rotation matrix; and encoding the transformed signals after application of the rotation matrix. The quantifying of the rotatio...