Method of checking authenticity of a data carrier
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United States of America Patent
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Feb 5, 2002
Grant Date -
N/A
app pub date -
Jun 17, 1998
filing date -
Oct 23, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The invention relates to a method for testing the authenticity of a data carrier with an integrated circuit and is characterized in that a material is provided in an area of the integrated circuit which is excited to luminesce for example by an electromagnetic radiation or by an electric field, the electromagnetic radiation emitted by the material being measured and evaluated for determining the authenticity of the data carrier.
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