ALEXANDRIA, Va., June 9 -- United States Patent no. 12,285,876, issued on April 29, was assigned to PIXART IMAGING INC. (Hsin-Chu County, Taiwan).
"Cleaning robot capable of eliminating reflection interference" was invented by Chi-Chieh Liao (Hsin-Chu County, Taiwan) and Guo-Zhen Wang (Hsin-Chu County, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "There is provided a cleaning robot including a light source module and an image sensor. The light source module projects a horizontal line pattern toward a moving direction. The image sensor captures, toward the moving direction, an image of the horizontal line pattern. The light source module is arranged below the image sensor so as to eliminate the interf...