Laminated Documents and Cards Including Embedded Security Features
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United States of America Patent
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N/A
Issued Date -
Nov 14, 2013
app pub date -
Mar 15, 2013
filing date -
May 11, 2012
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
An anti-counterfeit feature for a multi-layer document or plastic laminated card is provided according to some embodiments. The laminated card can include an embedded layer including a radio frequency radiation absorbing or deflecting material. The card can be authenticated by detecting an absence or a modification of a radio frequency signal due to the card interfering with a radiation source. The laminated card can also include a pattern of perforations passing partially or fully through one or more layers of the card so as to produce an effect similar to a watermark in the assembled laminated card by giving the card a modified transparency in a pattern associated with the pattern of perforations. The card can be authenticated by observing a pattern of light through the perforations.
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