APPARATUS AND METHOD FOR REPORTING TIE EVENTS IN A SYSTEM THAT RESPONDS TO MULTIPLE TOUCHES

摘要

Method and apparatus for detecting multiple touch events on a touchscreen system (280) and determining the occurrence of tie events. The system comprises a touchscreen (105), a touchscreen controller (262) and a microprocessor (268). The touchscreen comprises a touch surface (122) for receiving touch events. Each of the touch events occurs at a discrete location on the touch surface defined by coordinates. The touchscreen controller monitors the touch surface for the touch events. The microprocessor compares the touch events and determines a tie occurrence when the touch events occur within a predetermined time of one another.