Contactless portable object capable of providing an indication on the performance of a contactless reader
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United States of America Patent
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Jul 30, 2013
Grant Date -
Oct 8, 2009
app pub date -
Mar 31, 2009
filing date -
Mar 31, 2008
priority date (Note) -
In Force
status (Latency Note)
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Abstract
The invention concerns a contactless portable object (11) featuring an electronic circuit (14) and an antenna (12) connected together enabling coupling between the electronic circuit and a reader associated with the portable contactless object. According to the main characteristic of the invention, the contactless portable object includes a set of field indicators (18) that provide the user with a measurement of the value of a physical quantity proportional to the quantity of the electromagnetic field which passes through the antenna (12).
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