Patent ID: 11943416
Assignee: HYDRAGRAPHIX LLC
Field: Audio-visual technology (Electrical engineering)
Classification: CPC B  H  A | IPC A  H

Claim 0:
1. A redundantly printed security-enhanced document comprising:
a substrate;
process color variable indicia representing variable information printed on the substrate, the process color variable indicia comprising a plurality of component colors, each component color manifesting a level greater than a predetermined minimum Signal-to-Noise-ratio threshold relative to the substrate background surrounding the variable indicia when viewed in any of red, green, or blue channels of an additive color model as calculated by a Modified Weber's Fraction equation, such that at least two of the component colors of the process color variable indicia covey a meaning of the variable information when viewed in at least one channel of the additive color model; and
a scratch-off coating covering at least a portion of the process color variable indicia.