ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,386,461, issued on Aug. 12, was assigned to FlatFrog Laboratories AB (Lund, Sweden).
"Touch-sensing apparatus" was invented by Hakan Bergstrom (Torna-Hallestad, Sweden) and Tomas Svensson (Limhamn, Sweden).
According to the abstract* released by the U.S. Patent & Trademark Office: "A touch sensing apparatus is disclosed comprising a panel having a touch surface, emitters and detectors arranged along a perimeter, a light directing portion arranged adjacent the perimeter and comprising a light directing surface, the emitters and/or the detectors are arranged opposite a rear surface of the panel to emit and/or receive light through a channel in a frame element, the channel is arranged o...