An apparatus and method for preventing noise in a touch screen using a predetermined number of gates that substantially eliminates noise in advance and reduces cost includes an analog-to-digital converter (ADC) which converts received analog source data into digital source data, and sends the converted...http://www.google.ca/patents/US20040100450?utm_source=gb-gplus-sharePatent US20040100450 - Apparatus and method for preventing noise of touch screen
