| 摘要 |
A touch apparatus including a touch capacitor and a touch control unit is provided. The touch control unit includes a signal sampling and saving unit, a switch unit, and a signal processing unit. The signal sampling and saving unit samples and saves a voltage on the touch capacitor during enable periods of a sample signal and a charge reset signal, so as to generate a touch voltage and a reset voltage respectively, and further generate an average voltage of the touch voltage and the reset voltage according to an equalization signal. The switch unit receives and transmits the touch voltage, the reset voltage, and the average voltage according to a first control signal. The signal processing unit couples the touch voltage, the reset voltage, the average voltage, and a common voltage according to a second control signal, so as to generate a first coupling voltage and a second coupling voltage. |
