Fingerprint detecting apparatus canceling offset and control method thereof
US10354113B2 · kind B2 · utility
0Cited by
3References
6Claims
0Family size
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Key dates
| Filing date | Oct 15, 2015 |
| Grant date | Jul 16, 2019 |
| Priority date | — |
| Expiry date | May 17, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V40/1306
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
According to an embodiment of the present invention, an apparatus for detecting a fingerprint is provided, which includes a plurality of sensor pads receiving a response signal from a finger applied to a driving signal, a sensing circuit outputting a sensing signal based on the response signal, and a sensing signal adjusting unit sampling the sensing signal outputted from the sensing circuit maintaining the sensing signal, and adjusting an average voltage level of the sensing signal based on a reference voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.