ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,389,253, issued on Aug. 12, was assigned to SZ DJI TECHNOLOGY Co. LTD. (Shenzhen, China).
"Monitoring method and device" was invented by Ning Ma (Shenzhen, China), Cangbo Zhao (Shenzhen, China) and Ying Chen (Shenzhen, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A monitoring method includes effecting communication of working data associated with normal operations of a communication device at a first frequency channel and transmitting monitoring data associated with monitoring the communication device at a second frequency channel."
The patent was filed on Aug. 17, 2020, under Application No. 16/995,294.
*For further information, including ima...