ALEXANDRIA, Va., June 16 -- United States Patent no. 12,656,009, issued on June 16, was assigned to QINGDAO HISENSE HITACHI AIR-CONDITIONING SYSTEMS Co. LTD. (Qingdao, China).

"Air conditioning system and method for controlling air conditioning system" was invented by Jihong Cao (Qingdao, China) and Xiuxia Cao (Qingdao, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "An air conditioning system includes an outdoor unit, an indoor unit, a wire controller, a terminal device, a first converter, and a second converter. The first converter is configured to obtain Celsius temperature data currently transmitted in the air conditioning system, convert the currently transmitted Celsius temperature data to first F...