Air/object determination for biometric sensors
US9911184B2 · kind B2 · utility
4Cited by
41References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 30, 2015 |
| Grant date | Mar 6, 2018 |
| Priority date | — |
| Expiry date | Feb 5, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V40/50
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A fingerprint sensing apparatus may include a fingerprint sensor system and a control system capable of receiving fingerprint sensor data from the fingerprint sensor system. The control system may be capable of determining fingerprint sensor data blocks for at least a portion of the fingerprint sensor data and of calculating statistical variance values for fingerprint sensor data corresponding to each of the fingerprint sensor data blocks. The control system may be capable of determining, based at least in part the statistical variance values, whether an object is positioned proximate a portion of the fingerprint sensor system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.