US Patent Issued to Alps Alpine on Dec. 16 for "Speaker output characteristic correction system and sound system" (Japanese Inventor)

ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,501,215, issued on Dec. 16, was assigned to Alps Alpine Co. LTD. (Tokyo).

"Speaker output characteristic correction system and sound system" was invented by Yuji Saito (Fukushima, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A controller calculates individual parameters, including nonlinear parameters of a speaker model, based on a measured displacement of a vibration system of a speaker. A sound generator outputs an audio signal, and an output flattening filter adjusts gains of individual bands of an audio signal so that a frequency characteristic of a volume of sound output by the speaker is flattened in accordance with a speaker model obtaine...