ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,478,241, issued on Nov. 25, was assigned to DREAME INNOVATION TECHNOLOGY (SUZHOU) Co. LTD. (Suzhou, China).

"Control method for self-moving device and self-moving device" was invented by Shunchang Yu (Suzhou, China), Zhen Wang (Suzhou, China) and Shenghao Tang (Suzhou, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A control method for a self-moving device, includes: obtaining edge information of a working area where the self-moving device is located; obtaining an environment image captured while moving; obtaining access door information based on the environment image; and dividing independent areas within the working area based on the access door...