Contactless chip card associated with RF transmission means
First Claim
1. System including a smartcard and RF transmission means for communication with said smartcard and supplying it with power as required, this smartcard including at least one pick up coil connected to an integrated memory circuit, characterised in that said RF transmission means are arranged so as to generate lines of flux parallel to the surface of said smartcard, the latter including on its two faces zones of high magnetic permeability arranged so as to pick up these lines of flux across a first face, and to transfer them to a second face at the location in which the pick up coil is situated.
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Accused Products
Abstract
The invention concerns a chip card associated with RF transmission means. Said chip card comprises on each surface high permeability zones arranged so as to concentrate the flux generated by the RF transmission means onto a sensor coil. To ensure the proper functioning of the system, the transmission means generate flux lines parallel to the surface of the chip card.
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Citations
10 Claims
- 1. System including a smartcard and RF transmission means for communication with said smartcard and supplying it with power as required, this smartcard including at least one pick up coil connected to an integrated memory circuit, characterised in that said RF transmission means are arranged so as to generate lines of flux parallel to the surface of said smartcard, the latter including on its two faces zones of high magnetic permeability arranged so as to pick up these lines of flux across a first face, and to transfer them to a second face at the location in which the pick up coil is situated.
Specification