Contactless chip card associated with RF transmission means
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United States of America Patent
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-
Dec 10, 2002
Grant Date -
N/A
app pub date -
Nov 9, 1999
filing date -
May 9, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
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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