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1. (WO2015185964) SYSTEM AND METHOD FOR MULTI-TOUCH EVENT DETECTION

Pub. No.:    WO/2015/185964    International Application No.:    PCT/IB2014/062041
Publication Date: Fri Dec 11 00:59:59 CET 2015 International Filing Date: Sat Jun 07 01:59:59 CEST 2014
IPC: G06F 3/041
Applicants: SABIA EXPERIENCE TECNOLOGIA S.A.
Inventors: GUIMARÃES, Marcelo Ferreira
TURCATO, Renato Parenti
BLANK, Paulo Ricardo Fonseca
DE BRITO JÚNIOR, Eduardo Matos
Title: SYSTEM AND METHOD FOR MULTI-TOUCH EVENT DETECTION
Abstract:
A system and method for multi-touch event detection are disclosed. One aspect is directed to a system that can include an emitter comprising at least two light sources synchronized with a detector by a controller and at least two beam shapers arranged to generate at least two partially overlapping illuminated areas over a touchable surface. The controller can synchronize the at least two light sources with the detector, and can activate each of the at least two light sources in sequence and in a repeating loop. The detector can detect light reflected responsive to a touch event associated with the at least two light sources. A computing unit can process signals received from the detector using an image processing algorithm.