Chip card reader with a space-saving and combined user-related data input and output

摘要

The chip card reader (1) has a display (2) and a keyboard (3). The display and the keypad are implemented with a single touch-sensitive screen. The information is output over the display, and the information is input over the keyboard during transaction in accordance with the smart card reader standards. The ratio between the area of occupancy for information output and the area of occupancy for information input is dynamically changeable, depending on either the display or keyboard function for currently pending transaction or the current upcoming dialog step in the foreground.