| 摘要 |
The invention relates to a method for compressing user data (140) of a document (102) by means of a chip card terminal (104), wherein the document (102) has at least one non-volatile memory (112) having user data (140) contained therein, wherein the chip card terminal (104) has at least an electronic memory (144), a closed housing, and a mechanical draw-in device, wherein the mechanical draw-in device is designed to secure the document (102) against removal from the chip card terminal (104). The method comprises drawing the document (102) into the mechanical draw-in device of the chip card terminal (104) such that the document (102) is completely inside the housing of the chip card terminal (104) after the drawing in, transferring the user data (140) from the non-volatile memory (112) of the document (102) into the electronic memory (144) of the chip card terminal (104), compressing the user data (140) by means of the chip card terminal (104), transferring the compressed user data (140) into the non-volatile memory (112) of the document (102), and ejecting the document (102) from the mechanical draw-in device. |
