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1. (WO2017153644) FINGER-CONTROLLED CONTACTLESS CHIP CARD

Pub. No.:    WO/2017/153644    International Application No.:    PCT/FR2017/000046
Publication Date: Fri Sep 15 01:59:59 CEST 2017 International Filing Date: Fri Mar 10 00:59:59 CET 2017
IPC: G06K 19/07
G06K 19/073
G06K 19/077
Applicants: SMART PACKAGING SOLUTIONS
Inventors: DANLER-BAUMGARTNER, Stephan
MEAR, Benjamin
TEBOUL, Deborah
Title: FINGER-CONTROLLED CONTACTLESS CHIP CARD
Abstract:
The invention relates to a contactless chip card intended to communicate with a chip card reader operating at a resonant frequency F0', said chip card being provided with a card body integrating at least one antenna connected in series or in parallel with a capacitor, the values of the inductances of the antennae and the capacitance of the capacitor being chosen to obtain a resonant frequency F0 that is far enough from the frequency of the signal emitted by the reader to limit radiofrequency communication with the reader, so that the chip card is by design out of tune with respect to the reader, and the values of said inductances and capacitance furthermore being chosen so that the connection in parallel of an additional predetermined capacitance Cd brings the resonant frequency of the card into the vicinity of the frequency F0' of the signal emitted by said reader so that the chip card becomes tuned to the reader, characterised in that the chip card includes a booster antenna (20) provided with an inductive main antenna U and with an inductive concentrator antenna L2, which antennae are connected in series or parallel with a capacitor C, and in that the inductances of L1 and L2 and the capacitance of C are chosen on the one hand to obtain said resonant frequency F0, and on the other hand so that the connection in parallel of said predetermined capacitance Cd brings the resonant frequency of the card into the vicinity of said frequency F0' of the signal emitted by said reader.