| 摘要 |
The invention relates to an information network comprising a control and information unit, at least one data channel, and a number of detached card readers connected with the control and information unit via a data channel, which card readers are suitable for the exchange of information with an electronic card to be inserted into such a card reader, wherein the data channel between the card readers and the control and information unit consist, at least in part, of the electronic card. The electronic card is provided with a memory for the storage of messages from and to the detached card readers. Part of the memory is reserved for storage and transport of information deviating from the object information of the electronic card, and be addressable to at least one of the card readers.
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