Including information signals in product packaging and other printer media
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United States of America Patent
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Jan 9, 2018
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app pub date -
Jun 27, 2016
filing date -
Aug 24, 2012
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Abstract
The present disclosure relates generally to data hiding for retail product packaging and other printed objects. One embodiment embeds an information signal in a spot color for product packaging. The spot color is screened, and overprinted with process color tint. The tint is modulated prior to overprinting with optimized signal tweaks. The optimization can include consideration of a detector spectral dependency (e.g., red and/or green illumination). Many other embodiments and combinations are described in the subject patent document.
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