Microparticle taggant systems

A microparticle taggant having two or more distinguishable marker layers corresponding to a predetermined numeric code. The plurality of particles comprises a plurality of microparticle sets of at least one microparticle, each microparticle set is characterized by a specific marker layer combination...

Full description

Saved in:
Bibliographic Details
Main Author HUNT DANIEL R
Format Patent
LanguageEnglish
Published 19.09.2002
Edition7
Subjects
ADVERTISING
CALCULATING
COMPUTING
COUNTING
CRYPTOGRAPHY
DISPLAY
DISPLAYING
EDUCATION
HANDLING RECORD CARRIERS
LABELS OR NAME-PLATES
PHYSICS
PRESENTATION OF DATA
RECOGNITION OF DATA
RECORD CARRIERS
SEALS
SIGNS
Online AccessGet full text

Cover

More Information
Summary:A microparticle taggant having two or more distinguishable marker layers corresponding to a predetermined numeric code. The plurality of particles comprises a plurality of microparticle sets of at least one microparticle, each microparticle set is characterized by a specific marker layer combination different from each other microparticle set, and the combination of microparticle sets employed in said taggant collectively forms the numeric code. Each specific marker layer combination may employ two or more layers. The microparticle sets employed in the taggant may include at least one datum marker layer coded to include place information and at least two value marker layers coded to specify a value within the place, the datum marker layer(s) being readily distinguishable from the value marker layers and functioning to identify an orientation of the value marker layers.
Bibliography:Application Number: US20010997485