FIELD: information technologies.
SUBSTANCE: device processes results of measurements produced, for instance, at least at two measurement frequencies, at the same time the position of one or more discrete measurement paths is set so that possibility to verify availability of at least two different invisible spectral properties inherent in authentic valuable documents of specified type is provided.
EFFECT: invention makes it possible to produce a structurally simple measurement device.
9 cl, 4 dwg
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DEVICE FOR AUTHENTICATING VALUABLE DOCUMENTS | 2011 |
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Authors
Dates
2011-05-20—Published
2006-04-11—Filed