Device and method for optical capture at different wavelengths emitted sequentially
US10474803B2 · kind B2 · utility
0Cited by
0References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 2, 2017 |
| Grant date | Nov 12, 2019 |
| Priority date | — |
| Expiry date | May 2, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V40/40
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A device and method, the purpose of which is to secure digital fingerprint reading by sequential optical captures with optimization of the exposures to light. At least one of the illumination and detection parameters is adjusted as a function of the acquisition conditions (physiological condition of the epidermis, exposure to ambient light) owing to the means of control.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.