ALEXANDRIA, Va., June 25 -- United States Patent no. 12,342,140, issued on June 24, was assigned to SONY GROUP Corp. (Tokyo).

"Signal processing device and method for reducing doppler distortion" was invented by Michiaki Yoneda (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present technique relates to a signal processing device and method capable of reducing Doppler distortion. The signal processing device includes a displacement prediction unit that predicts displacement of a diaphragm of a speaker, in a case where the speaker plays back sound based on an audio signal in which a high-frequency signal and a low-frequency signal are mixed, based on the audio signal; and a correction unit that perf...