| 摘要 |
The invention concerns a system wherein the terminal (100) and the card (200) comprise each an electromagnetic field and the card comprises a chip with processing circuits and a writeable store controlled by the terminal. The card comprises validating means, conditioning at least one data exchange step between terminal and card to an external predetermined action operated with said card by the card bearer, said validating means comprising, in the card, means for receiving light (204) co-operating with the digital processing electronic circuits and with the store.
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