There is disclosed a system and method for noise reduction in touch screen systems. A touch screen system comprises an analog to digital converter capable of converting to digital signals analog signals from at least one analog resistive film in a touch screen. The analog signal is indicative of a location...http://www.google.com.au/patents/US20020089491?utm_source=gb-gplus-sharePatent US20020089491 - System and method for noise reduction in touch screen system