Patent ID: 11960682
Assignee: LX SEMICON CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A touch sensing device comprising:
a coordinate calculation circuit for calculating touch coordinates for a single touch input generated on a touch screen panel;
an indicator generation circuit for generating an angle indicator by calculating a gradient value of a straight line created by connecting two neighboring touch coordinates among the touch coordinates; and
a coordinate correction circuit for generating a filtered coordinate for each touch coordinate by correcting the touch coordinate according to a value of the angle indicator,
wherein the value of the angle indicator is generated by
calculating gradient values of straight lines generated by connecting one of the touch coordinates and another coordinate for each of the touch coordinates,
subtracting the gradient values of straight lines from each other, and
adding absolute values of resultant values obtained by the subtracting the gradient values of straight lines from each other.