| 摘要 |
A credit card comprising a card body, which comprises a fingerprint reading means and a readout area comprising at least one core winding around at least one strip of a first electromagnetically inducible core material is positioned, each strip being individually inducible by said data processor to emit a magnetic field containing secured data signals corresponding to said secured data. In order to provide more electrical field along the extent of the strip, at least one strip of inducible core material is provided with distributed air gaps or contaminations of a second electromagnetically inducible material having less or more electromagnetically inducible than the first electromagnetically inducible material are provided along an extent of the at least one strip of inducible core material or inside the card body. |
