US Patent Issued to Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung on March 11 for "Noise filling in multichannel audio coding" (German Inventors)

ALEXANDRIA, Va., March 12 -- United States Patent no. 12,249,340, issued on March 11, was assigned to Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V. (Munich).

"Noise filling in multichannel audio coding" was invented by Maria Luis Valero (Nuremberg, Germany), Christian Helmrich (Erlangen, Germany) and Johannes Hilpert (Nuremberg, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "In multichannel audio coding, an improved coding efficiency is achieved by the following measure: the noise filling of zero-quantized scale factor bands is performed using noise filling sources other than artificially generated noise or spectral replica. In particular, the coding efficiency in multichannel...