ALEXANDRIA, Va., July 21 -- United States Patent no. 12,689,864, issued on July 21.
"Phaseless upmixer system" was invented by Jeffrey Read (San Francisco) and Andrew Wehmeyer (Pasadena, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "This sound processing system creates surround effects by minimizing quality degradation experienced by known sound processing systems in non-optimum listening environments such as vehicles. The sound processing system may include taking two channel input stereo signals and upmixing the input signals into at least two output signals where the phase of the output signals remains unchanged from the input signals. Once the output signals are generated by the upmixer, all pass...