| 摘要 |
The invention relates to an additive method for using electronic memories of chip cards which are linked to terminals and exchange energy and data, with and/or without contacts. When a chip card exchanges data with a terminal of a first institution, the terminal provides the chip card with a identifier and the chip card supplies the terminal with a identifier. The terminal loads a number of use units and/or money units together additively into the memory of the chip card under the identifier. The terminal then makes the use units/money units available together to a second institution. This second institution is able to clearly determine the first institution and an account and/or cardholder from the data it receives and can then credit the use units/money units. |
