ALEXANDRIA, Va., Oct. 6 -- United States Patent no. 12,753,444, issued on Oct. 6, was assigned to Dolby International AB (Dublin).
"Oversampling in a combined transposer filterbank" was invented by Lars Villemoes (Jarfalla, Sweden) and Per Ekstrand (Saltsjobaden, Sweden).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to coding of audio signals, and in particular to high frequency reconstruction methods including a frequency domain harmonic transposer. A system and method for generating a high frequency component of a signal from a low frequency component of the signal is described. The system comprises an analysis filter bank (501) comprising an analysis transformation unit (601)...