| Simple |
Select Visible or
Invisible |
Converts incoming frequency
to different outgoing
frequency
|
Specific spectral response
can be visible or
invisible |
Special detectors and/or
filters are used to read invisible |
| Multiple Response |
Select Visible or
Invisible |
Converts incoming
frequency to multiple
different outgoing frequencies |
Specific spectral responses
can be visible
and/or invisible |
|
| Special Response |
Select Visible or
Invisible |
Converts incoming frequency
to different outgoing
frequency |
Specific spectral response
can be visible or
invisible |
Unique signature characteristics
such as delayed
response, intensity decay
pattern and/or persistence |
| Multiple Input |
Select multiple Visible
or Invisible |
Converts incoming frequencies
to multiple
different outgoing frequencies |
Specific spectral responses
can be visible
and/or invisible |
|
| Proprietary Alphabet |
Select single or
multiple Visible or
Invisible |
Converts incoming
frequency(s) to different
outgoing frequency(s) |
Specific spectral
response(s) can be visible
and/or invisible |
Proprietary combination
provides a third layer of
security |