Patent ID: 11960680
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 9:
10. The touch controller of claim 9, wherein the driving signal generation circuit comprises:
the first buffer configured to output the first noise voltage in which the display noise is added to the first reference voltage, during a second period that is different from the first period;
the second buffer configured to output the second noise voltage in which the display noise is added to the second reference voltage, during the second period; and
a multiplexer configured to receive the first noise voltage and the second noise voltage and alternately output the first noise voltage and the second noise voltage as the driving signal, based on a selection signal which has a certain frequency,
wherein the first buffer and the second buffer of the driving signal generation circuit are the first buffer and the second buffer, respectively, of the noise detection circuit.