Touch panel sensing apparatus and controlling apparatus thereof

The present invention relates to a touch panel sensing device. Sensing a touch panel device according to the present invention, the driving signal is applied during pre-processing unit for removing a common noise signal and the pre-frequency components higher than a predetermined cut-off frequency of the two signals outputted from the touch panel; And an attenuation unit for outputting a sensing signal by attenuating the frequency of the predetermined frequency range in the pre-processing section output signal; and a.