Patent ID: 8665231

Claim:
A sensing method for a touch sensing device which comprises a touch sensing array and an integrator, wherein the touch sensing array comprises a plurality of first sensing electrodes disposed successively, and the sensing method comprises: resetting the integrator; measuring output signals corresponding to the first sensing electrodes, wherein the step of measuring the output signals corresponding to the first sensing electrodes comprises: pre-charging a previous first sensing electrode among the first sensing electrodes to a first voltage; connecting the previous first sensing electrode to the integrator; measuring an output voltage of the integrator to obtain a previous first integration value; pre-charging a current first sensing electrode among the first sensing electrodes, to a second voltage; connecting the current first sensing electrode to the integrator; measuring the output voltage of the integrator to obtain a current first integration value; and calculating the difference between the previous first integration value and the current first integration value to obtain the output signal corresponding to the current first sensing electrode; and measuring the output voltage of the integrator to obtain a first reference value after the integrator is reset, wherein the step of measuring output signals corresponding to the first sensing electrodes further comprising: calculating the difference between the first reference value and the previous first integration value to obtain the output signal corresponding to the previous first sensing electrode.