ALEXANDRIA, Va., June 12 -- United States Patent no. 12,300,265, issued on May 13, was assigned to BRAINSOFT INC. (Seoul, South Korea).

"Sound processing method using DJ transform" was invented by Dong Jin Kim (Seoul, South Korea) and Ju Yong Shin (Seoul, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a sound processing method performed by a computer, the method comprising generating a DJ transform spectrogram indicating estimated pure-tone amplitudes for respective frequencies corresponding to natural frequencies of a plurality of springs and a plurality of time points by modeling an oscillation motion of the plurality of springs having different natural frequencies, with respect to ...