Fingerprint sensor with detection of latent fingerprints
US12051267B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 13, 2021 |
| Grant date | Jul 30, 2024 |
| Priority date | — |
| Expiry date | May 26, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V40/1394
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method may involve obtaining a latent fingerprint on a surface, storing the latent fingerprint, obtaining a live fingerprint on the surface, and authenticating the live fingerprint based in part on the stored latent fingerprint and in part on previously-authenticated fingerprint data. The method may involve rejecting authentication of the live fingerprint as a potential spoof, if the live fingerprint matches the latent fingerprint under a relatively strict correlation test. The method may also involve, when the live fingerprint doesn't closely match the latent fingerprint, granting authentication of the live fingerprint if the live fingerprint matches the previously-authenticated fingerprint data under a relatively loose correlation test.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.