Patent ID: 9727198
Date: 2017-08-08
CPC Classifications: G06F

Claim:
1. A sensing apparatus of an electromagnetic induction input type, which determines an input position of a touch object, the sensing apparatus comprising: a loop unit, comprising one or more sub-loops, which receives an input signal from the touch object and outputs one or more sensing signals; a resistance information measurement unit for measuring a resistance of each of the one or more sub-loops, and generating a resistance information lookup table with each resistance value of a corresponding sub-loop of the one or more sub-loops; and a controller for correcting the one or more sensing signals based on the resistance information lookup table, and determining the input position of the touch object based on peak points of the corrected one or more sensing signals, wherein the sensing apparatus alternatively switches between a first mode for measuring the input position of the touch object and a second mode for measuring the resistance of each of the one or more sub-loops to generate the resistance information lookup table, wherein the controller determines a pressure of the touch object based on the corrected one or more sensing signals, and wherein the controller determines a respective weight, by which each of the one or more sensing signals is required to be multiplied, based on the resistance information lookup table.