ALEXANDRIA, Va., Dec. 2 -- United States Patent no. 12,488,804, issued on Dec. 2, was assigned to Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V. (Munich).

"Frequency-domain audio coding supporting transform length switching" was invented by Sascha Dick (Nuremberg, Germany), Christian Helmrich (Erlangen, Germany) and Andreas Hoelzer (Erlangen, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "A frequency-domain audio codec is provided with the ability to additionally support a certain transform length in a backward-compatible manner, by the following: the frequency-domain coefficients of a respective frame are transmitted in an interleaved manner irrespective of the signalization s...