Patent ID: 7837124

Claim:
Foldable data support, including a support with at least first and second sheets ( 11 , 12 A, 12 B, 12 C) configured to pivot relative to each other with respect to a line (P) along the edges of said sheets and a contactless chip mounted in said support and including an electronic circuit (IC) and coupling elements (A 1 , A 2 ) connected to said electronic circuit distributed between the first and second sheets and configured to be electromagnetically coupled to an external reading station, this electronic circuit including an exchange portion configured to exchange information at least with the external reading station, characterized in that said support carries a test device configured to verify by means of signals emitted by the coupling elements a geometrical condition on the angular configuration on the first and second sheets and to generate as a function of the result of said test a signal authorizing or prohibiting activation of the exchange portion of the electronic circuit.