ALEXANDRIA, Va., April 9 -- United States Patent no. 12,273,649, issued on April 8, was assigned to PIXART IMAGING INC. (Hsin-Chu County, Taiwan).
"Optical sensor having opaque layer" was invented by Jung-Tai Lin (Hsin-Chu County, Taiwan) and En-Feng Hsu (Hsin-Chu County, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An optical sensor including a pixel matrix and an opaque layer is provided. The pixel matrix includes a plurality of unblocked pixels, a first pixel and a second pixel, which is arranged at a side of the first pixel in a row direction of the pixel matrix. The opaque layer covers upon a first region, which is a part of the first pixel, and upon a second region, which is a part of the seco...