ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,524,117, issued on Jan. 13, was assigned to FlatFrog Laboratories AB (Lund, Sweden).
"Optical coupling in touch-sensing systems" was invented by Hakan Bergstrom (Torna Hallestad, Sweden) and Aleksander Kocovski (Malmo, Sweden).
According to the abstract* released by the U.S. Patent & Trademark Office: "A touch sensing apparatus is disclosed, comprising a light transmissive panel that defines a touch surface, an opposite rear surface, and panel sides extending between the touch surface and rear surface. The panel sides define a perimeter of the light transmissive panel. The touch sensing apparatus comprises a plurality of light emitters and detectors arranged along the perimeter and a...