Media verification system
AssigneeTranslucent Technologies, LLC
InventorsGerrit L. Verschuur, David M. Uland, Chauncey T. Mitchell, Jr.
Life of this patent
Estimating the term…
Abstract
A unique conductivity pattern is applied to printable articles to provide a “signature” for later verifying the authenticity of the printable articles. Preferably, the conductivity pattern is hidden from sight and differs from other conductivity patterns applied to other printable articles in an effectively random manner. Capacitive sensors read the conductivity patterns, and the resulting data for recording the signatures reflects not only details of the conductivity patterns themselves but also the characteristics of the capacitive sensors and their use.
Claims22
Print media with individualized signatures comprising;
- a web divided into a succession of printable articles;
- a plurality of conductivity patterns on the succession of printable articles;
- the conductivity patterns differing between printable articles with a variability that is effectively random and detectable as signatures that differ from each other;
- the conductivity patterns being at least partially formed on the web prior to dividing the web into the succession of printable articles and the differences between the conductivity patterns being formed by one or more in-line processes that are not repeated in registration with the succession of printable articles;
- and
- the in-line processes including printing out of registration with the succession of printable articles.
Print media with individualized signatures comprising;
- a web divided into a succession of printable articles;
- a plurality of conductivity patterns on the succession of printable articles;
- the conductivity patterns differing between printable articles with a variability that is effectively random and detectable as signatures that differ from each other;
- the web being made of a film, an adhesive layer is supported on the film, and the conductivity patterns being applied over the adhesive layer on the film;
- and
- the film being a magnetic film.
Print media with individualized signatures comprising;
- a web divided into a succession of printable articles;
- a plurality of conductivity patterns on the succession of printable articles;
- the conductivity patterns differing between printable articles with a variability that is effectively random and detectable as signatures that differ from each other,
- the first web containing a succession of first substrates, a second of the webs containing a succession of second substrates, and the first and second successions of substrates are laminated together to form the printable articles with the conductivity patterns located between the laminated substrates;
- and
- the first of two webs being a magnetic film that is divided into the succession of first substrates.
Dependencies are inferred from the claim text.