Patent ID: 8416211
Filing Date: 2013-04-09
Classification: G06F

Abstract:
1. A light sensitive screen comprising: at least one sensing element each being configured to detect a force applied to a position of the light sensitive screen and generate an electrical signal when a force is detected, the electrical signal including a positive half and a negative half; and a sensor module configured to receive and process the electrical signal from the at least one sensing element, the sensor module comprising: an amplifier configured to amplify the electrical signal from one of the at least one sensing element and generate an amplified signal; an integrator to integrate the amplified signal from the amplifier and generate an integrated signal; a comparator configured to compare the integrated signal with a threshold; and a digitizer configured to generate a digital signal based on a result of comparison from the comparator, the digital signal including information as to whether the position of the light sensitive screen is touched.