Data exchange system with a portable data carrier arrangement

摘要

The portable data carrier arrangement, which contains at least one integrated circuit forming an independent programmable data store and its control circuit and addressing circuit, has the form of a laminar plug body (4) which is stiff against bending, embeds the integrated circuit (2, 3) completely and covers it on all sides, and has contacts (5, 16, 17) arranged respectively in pairs and symmetrically for the electrical connection between data carrier arrangement and associated reading device. <IMAGE>