Authenticating an article
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United States of America Patent
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Jan 26, 2021
Grant Date -
Nov 30, 2017
app pub date -
Dec 11, 2015
filing date -
Dec 11, 2014
priority date (Note) -
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Abstract
A method of authenticating an article, the method comprising: reading a label associated with the article, the label comprising article fingerprint information; retrieving, in dependence on the article fingerprint information, an article fingerprint, the fingerprint describing the resonance response of the article to an excitation signal; applying an excitation signal to the article; receiving the resonance response of the article to the excitation signal; comparing the resonance response to the fingerprint; and determining in dependence on the comparison whether the article is authentic.
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