Multifunction fingerprint sensor having optical sensing against fingerprint spoofing
US10438046B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 2, 2016 |
| Grant date | Oct 8, 2019 |
| Priority date | — |
| Expiry date | Nov 2, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2203/04106
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The disclosed technology provides optical anti-proofing techniques in fingerprints sensing in devices or systems that use fingerprint identification for controlling access. The disclosed technology uses a fingerprint sensor to detect a contact input associated with a source of a fingerprint; generates an image signal from the fingerprint sensor responsive to the detected contact input that is indicative of one or more images of the fingerprint; uses an optical biometric sensor that is separate from the fingerprint sensor to generate a biometric marker detection signal indicative of a biometric marker different from the fingerprint; and processes, by processing circuitry, the generated image signal and the biometric marker detection signal to determine whether the detected contact and the associated one or more fingerprint images are from a finger of a live person who makes the contact input.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.