ALEXANDRIA, Va., June 16 -- United States Patent no. 12,656,015, issued on June 16, was assigned to FOSHAN SHUNDE MIDEA ELECTRIC SCIENCE AND TECHNOLOGY Co. LTD. (Foshan, China) and GD MIDEA AIR-CONDITIONING EQUIPMENT Co. LTD. (Foshan, China).

"Control method for air conditioner and air conditioner by controlling a compressor at different frequency rates based on a corner frequency" was invented by Liuzhu Wei (Foshan, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided are a control method for an air conditioner and an air conditioner. The control method includes: determining a corner frequency of a compressor based on a target frequency of the compressor and a minimum operating frequency of the com...