Latent fingerprint detection
US11216641B2 · kind B2 · utility
0Cited by
2References
21Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 21, 2020 |
| Grant date | Jan 4, 2022 |
| Priority date | — |
| Expiry date | Jan 21, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/167
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In a method for operating a fingerprint sensor, a fingerprint capture operation is performed on a fingerprint of a finger contacting the fingerprint sensor. A finger lift action is detected. It is determined whether a latent fingerprint remains on a contact surface of the fingerprint sensor subsequent the finger lift action. If it is determined that a latent fingerprint remains on the contact surface of the fingerprint sensor subsequent the finger lift action, instruction on addressing the latent fingerprint is provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.