AUTHENTICATING DEVICE
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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N/A
Issued Date -
Apr 30, 2015
app pub date -
Oct 28, 2013
filing date -
Oct 28, 2013
priority date (Note) -
Abandoned
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Abstract
An authenticating device is used for optically authenticating a testing area of a first surface of a valuable document. The valuable document defines a normal perpendicular to the first surface and a datum penetrating the normal and two sides of the valuable document. The datum and the first surface collectively define a first area and a second area adjacent to the first area. The authenticating device includes a first light emitting unit, a second light emitting unit, and a light receiving component. The first light emitting unit is arranged within the first area. The second light emitting unit is arranged within the first area. The light receiving component is arranged within the second area. The first light emitting unit and the second light emitting unit emit light to the testing area in sequence for authenticating the variable document.
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