ALEXANDRIA, Va., July 14 -- United States Patent no. 12,681,557, issued on July 14, was assigned to KIDDE FIRE PROTECTION LLC (Bradenton, Fla.).

"System-on-chip, environmental monitoring device comprising the system-on-chip, and control system" was invented by Jie Xi (Shanghai), Benliang Li (Qinhuangdo, China), Hongliang Lei (Qinhuangdao, China), Fei Ye (Shanghai), Zhanlin Yang (Qinhuangdao, China), Maoqing Yang (Qinhuangdao, China) and Liping Wang (Shanghai).

According to the abstract* released by the U.S. Patent & Trademark Office: "A system-on-chip in accordance with an aspect of the present application comprises: a communication interface connected with an external bus; a hardware decoder connected with the communication interface; an...