Search International and National Patent Collections

1. (WO2017176839) TOUCHSCREEN SYSTEM USABLE IN A VARIETY OF MEDIA

Pub. No.:    WO/2017/176839    International Application No.:    PCT/US2017/026068
Publication Date: Fri Oct 13 01:59:59 CEST 2017 International Filing Date: Thu Apr 06 01:59:59 CEST 2017
IPC: G06F 3/042
Applicants: CEEBUS TECHNOLOGIES, LLC
Inventors: CAHALAN, Dennis
DEICHERT, Richard
VANLAANEN, John
NOONAN, Ted
HENDRICKS, Michel
CAHALAN, David
Title: TOUCHSCREEN SYSTEM USABLE IN A VARIETY OF MEDIA
Abstract:
An optical touch screen, suitable for use underwater and in air comprises a transparent waveguide covering an optional display, which is surrounded by light sources that couple light into the waveguide and sensors that monitor the intensity of light propagating through the waveguide, where light intensity responses are attenuated when the touch surface of the waveguide is touched, as result of disturbing (or frustrating) internally reflected light, and where the locations of such touch events are determined using line equations. The optical touch screen system implements various techniques to allow housing in a waterproof case, and seamless, reliable function underwater and in air.