Cryptography – By modifying optical image
Reexamination Certificate
2007-01-09
2007-01-09
Zand, Kambiz (Department: 2132)
Cryptography
By modifying optical image
C713S170000, C713S176000
Reexamination Certificate
active
09577959
ABSTRACT:
The present invention provides a method and apparatus for the production and labeling of objects in a manner suitable for the prevention and detection of counterfeiting. Thus, the system incorporates a variety of features that make unauthorized reproduction difficult. In addition, the present invention provides an efficient means for the production of labels and verification of authenticity, whereby a recording apparatus which includes a recording medium, having anisotrophic optical domains, along with a means for transferring a portion of the recording medium to a carrier, wherein a bulk portion of the recording medium has macroscopically detectable anisotrophic optical properties and the detecting apparatus thereon.
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“DSS
Durst David I.
Fraser Jay
Hoffberg Michael
Kaish Norman
Rodricks Brian
Milde & Hoffberg LLP
Tracer Detection Technology Corp.
Zand Kambiz
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