Optical: systems and elements – Holographic system or element – Fourier transform holography
Reexamination Certificate
2006-08-22
2006-08-22
Lavarias, Arnel C. (Department: 2872)
Optical: systems and elements
Holographic system or element
Fourier transform holography
C359S002000, C359S561000, C382S209000
Reexamination Certificate
active
07095540
ABSTRACT:
A method of verifying the authenticity of an object is presented. The method comprises providing a primary image; providing a secondary image; encoding the primary image; providing a random code; convolving the encoded primary image with the random code, providing thereby a reference image; affixing the reference image to the object to be authenticated; transforming the reference image; and comparing the transformed reference image with the secondary image. A system for verifying the authenticity of an object is presented. The system comprises a signal source; a first subsystem receiving a first signal from the signal source and providing as output therefrom a first output signal; a second subsystem receiving a second signal from the signal source and providing as output therefrom a second output signal; a third subsystem receiving the first and second output signals for comparing the first output signal with the second output signal.
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Esmail Ahouzi
Javidi Bahram
Zhang Guanshen (Eric)
Cantor & Colburn LLP
Lavarias Arnel C.
The University of Connecticut
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