Object comprising coded data and randomly dispersed ink taggant
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United States of America Patent
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Mar 5, 2013
Grant Date -
Nov 24, 2011
app pub date -
Aug 2, 2011
filing date -
Jul 25, 2005
priority date (Note) -
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status (Latency Note)
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Abstract
An object has first coded data and a random pattern disposed on a surface thereof. The first coded data identifies a plurality of fiducials on the surface and the random pattern defines a fingerprint for the object. The random pattern is defined by a taggant randomly dispersed in ink printed on the surface. A data reader for reading the first coded data and random pattern includes first and second optical sensors.
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