| 摘要 |
A magnetic data storage token such as a card has an elongate strip (20) of magnetisable material defined on one face, the strip being divided into at least one read-only (14 or 16) and at least one read-write (15) data region separated from each other by margins which have no data therein. A system for data transfer utilising such a card includes a reader which ignores any magnetic signals in the margins. <IMAGE> |
