| 摘要 |
<p>To prevent any falsification of a credit or identity card (60), a colour mark is applied on a selected area, defining the length or the limits of a path. The length of the path of the path is convened into digital marking data and recorded on a recording track (65). Upon checking the authenticity of the card (60), the length of the path is once again set and convened into digital marking data which must coincide or be equal with the recorded data on the recording track (65). </p> |
