RETROREFLECTIVE ARTICLES HAVING A MACHINE-READABLE CODE

摘要

Retroreflective articles comprise a substrate and a bar code provided on the substrate. The bar code comprises at least one human-readable information which provides framing information and a machine-readable information which provides variable information. The human-readable information is visible under a first condition and invisible under a second condition, and the machine-readable information is invisible under the first condition and visible under the second condition.

主权项

1. A retroreflective article comprising:
a retroreflective substrate having at least one human-readable information and an embedded machine-readable information, wherein the embedded machine-readable information is contained within the boundaries of at least a portion of the human-readable information.