Device and method for authentication
US11222496B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 21, 2020 |
| Grant date | Jan 11, 2022 |
| Priority date | — |
| Expiry date | Sep 21, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07D7/128
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
Disclosed is a device and process for marking and detecting labels with spectral band authentication features utilizing a reader that can be affixed to a smart phone and positioned so as to align the lens of the phone's camera with a reader aperture. The reader aperture allows the camera to view an item through a spacer, wherein a UV and IR light source is used to reveal indicia within invisible ink. The light source employs a distinct emission spectrum characterized by narrow peaks and gaps which can illuminate pigment of the invisible ink that is selectively responsive at the wavelengths of specific peaks and/or unresponsive at the gaps in the spectrum. The smart phone captures the indicia revealed and interfaces with a cloud-based database to provide verification of authenticity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.