Decoding and validation of machine-readable codes via multiple spectra of light
US12217121B2 · kind B2 · utility
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1References
18Claims
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Key dates
| Filing date | Mar 31, 2023 |
| Grant date | Feb 4, 2025 |
| Priority date | — |
| Expiry date | Mar 31, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K19/0614
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Aspects of this technical solution can include a first layer having a first region and a second region, the first region and the second region having a first transmissivity property corresponding to a first portion of a spectrum of light and a second portion of the spectrum of light, having the first transmissivity property, and a second layer disposed over the first layer and having a third region and a fourth region, the third region and the fourth region having a second transmissivity property corresponding to the first portion of the spectrum of light and the second portion of the spectrum of light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.