INTEGRATED SYSTEM OF TOUCH SCREEN AND TOUCH KEY

摘要

An integrated system of touch screen and touch key includes a touch screen unit, a touch key unit, a microcontroller and a system unit. The touch screen unit generates a first touch sensing signal according to a first touch event. The touch key unit generates a second touch sensing signal according to a second touch event. The microcontroller transforms the first touch sensing signal to a first data packet and transforms the second touch sensing signal to a second data packet. The microcontroller transmits the first data packet to an interface apparatus in the system unit through a first transmission line and transmits the second data packet to the system unit through a second transmission line.