US Patent Issued to Pratt & Whitney Canada on Dec. 16 for "Active sound attenuation for aircraft electrical system" (Canadian Inventors)

ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,499,864, issued on Dec. 16, was assigned to Pratt & Whitney Canada Corp. (Longueuil, Canada).

"Active sound attenuation for aircraft electrical system" was invented by Xi Wang (Montreal) and Jeremy Gonzalez (Montreal).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method is provided for operating an aircraft system. During this method, an electric machine of an electrical system is operated onboard an aircraft. A first set of electrical system waves produced by the electrical system is sensed. A set of electrical system attenuation waves is produced to attenuate a second set of electrical system waves produced by the electrical system in response to se...