US Patent Issued to recalm on April 1 for "Noise reduction system, method of operating the system and use of the system" (German Inventor)

ALEXANDRIA, Va., April 2 -- United States Patent no. 12,267,653, issued on April 1, was assigned to recalm GmbH (Hamburg, Germany).

"Noise reduction system, method of operating the system and use of the system" was invented by Marc Von Elling (Hamburg, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "A noise reduction system for actively compensating background noise generated by a noise source in a noise reduction area in a passenger transport area of a vehicle. The system includes a microphone array having a reference microphone. An averaging unit is configured to calculate an average error signal, which is calculated based on at least the error signal of a virtual microphone and a direct residual si...