ALEXANDRIA, Va., March 12 -- United States Patent no. 12,250,510, issued on March 11, was assigned to Dyson Technology Ltd. (Malmesbury, Great Britain).
"Noise control" was invented by Peter Knight Reid (Swindon, Great Britain) and Philip Stephen Darling (Bristol, Great Britain).
According to the abstract* released by the U.S. Patent & Trademark Office: "There is provided an ear cup including a housing containing a filter assembly and a motor-driven impeller for creating an airflow through the filter assembly, the housing including an air outlet downstream from the filter assembly for emitting the filtered airflow from the housing. The ear cup further includes an acoustic driver carried by the housing, a reference internal noise sensor ca...