Patent ID: 8702006

Claim:
An electronic card body-based device comprising a card body forming a medium for at least first and second electronic labels, the labels having respective first and second near-field electronic communications means suitable for being activated by applying a magnetic field, wherein the first and second labels also include respective first and second magnetic shielding means placed respectively between a first face of the card body-based device and the first communications means and between a second face of the card body-based device and the second communications means, wherein the first face and the first shielding means are on a first side of the card body-based device, and the second face and the second shielding means are on a second side of the card body-based device, the second side of the card body-based device being opposite the first side of the card body-based device in a direction orthogonal to the first and second faces, and wherein, irrespective of any intervening layers or components, components of the card body-based device, from the first face to the second face, are arranged as follows: the first face, the first magnetic shielding means, the first and second communications means, the second magnetic shielding means, and the second face.