Chip card for direct data exchange with another chip card has raised contact elements and depressed contact surfaces on rear of card

摘要

Front of chip card has chip module (2), display (9), key-pad (8) and battery (7). Rear side has data transfer unit (3) with raised contact elements and recessed contact surfaces for contact transfer of data to another chip card. Chip module (2) contains memory chip for different electronic functions and memory system.