US Patent Issued to PIXART IMAGING on July 14 for "Mobile robot performing cliff detection" (Malaysian Inventors)

ALEXANDRIA, Va., July 14 -- United States Patent no. 12,678,008, issued on July 14, was assigned to PIXART IMAGING INC. (Hsin-Chu County, Taiwan).

"Mobile robot performing cliff detection" was invented by Keen-Hun Leong (Penang, Malaysia), Sai-Mun Lee (Penang, Malaysia) and Ching-Geak Chan (Penang, Malaysia).

According to the abstract* released by the U.S. Patent & Trademark Office: "There is provided a mobile robot including a light source, an image sensor and a processor. The image sensor respectively captures bright image frames and dark image frames corresponding to the light source being turned on and turned off. The processor identifies that the mobile robot faces a cliff when a gray level variation between the bright image frames a...