Chip card for reading with a CD appliance consists of an optical, spirally structured data carrier skimmed on one or both sides outside a microprocessor chip.

摘要

An optical, spirally structured data carrier (3) is skimmed on one or both sides outside a microprocessor chip (2). Its diameter is smaller than that of the chip card. The chip card has a circular hole (4) at center of the optical data carrier. The circular hole's diameter corresponds to the optical data carrier according to CD standard.