ADAPTIVE TYPE NOISE REMOVING METHOD FOR IMPROVING THE ACCURACY OF THE POSITION MEASUREMENT OF TOUCH INPUT

摘要

PURPOSE: An adaptive noise removing method of touch input is provided to remove a noise from a signal which is inputted to a touch panel by determining a touch area according to the distribution of a CDC value. CONSTITUTION: A processor receives a CDC(Change Data Capture) value from a memory which stores an input signal of a touch panel(S200). The processor sets up a center channel and a neighboring data area(S300). The processor measures the average and standard deviation of a CDC value(S400). The processor determines a state of the center channel as a touch or noise state according to the average and the standard deviation(S500).