Method for remote detection of volatile taggant
AssigneeTracer Detection Technology Corp.
InventorsNorman Kaish, Jay Fraser, Volkan Otugen, Svetozar Popovic
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Abstract
A method of tagging and detecting objects is disclosed which comprises the steps of: (a) applying a volatile taggant to the object; and (b) subsequently detecting the presence of the taggant by the absorption, transmittance, reflectance, photon emission or fluorescence of the taggant and therefore a proximity of the tagged object. The present invention therefore provides optical sensing means which do not require physical separation of differing compounds for discrimination thereof.
Claims41
A method of detecting the presence or proximity of an object, comprising the steps of:
- (a) applying a volatile tracer to the object as a taggant;
- and
- (b) subsequently detecting the presence of said taggant by the absorption, transmittance, reflectance, photon emission or fluorescence spectral characteristics of the taggant, to determine the presence or proximity of the object.
The method defined in clam 11, wherein said object is a document and said carrier is an oil.
A method for detecting a volatile taggant having spectral characteristics within a sample space, comprising:
- (a) illuminating the sample space;
- (b) detecting a spectral characteristic of energy from the sample space;
- (c) comparing the spectral characteristic to a predetermined spectral characteristic pattern;
- and
- (d) outputting a signal relating to a result of said comparing.
Dependencies are inferred from the claim text.