US Patent Issued to DOLBY INTERNATIONAL on Sept. 1 for "Efficient combined harmonic transposition" (Swedish Inventors)

ALEXANDRIA, Va., Sept. 1 -- United States Patent no. 12,725,592, issued on Sept. 1, was assigned to DOLBY INTERNATIONAL AB (Dublin).

"Efficient combined harmonic transposition" was invented by Per Ekstrand (Saltsjobaden, Sweden), Lars Villemoes (Jarfalla, Sweden) and Per Hedelin (Gothenburg, Sweden).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present document relates to audio coding systems which make use of a harmonic transposition method for high frequency reconstruction (HFR), and to digital effect processors, e.g. so-called exciters, where generation of harmonic distortion adds brightness to the processed signal. In particular, a system configured to generate a high frequency component of a signal ...