Fingerprint sensing circuit, electronic device and method for processing fingerprint image
US10417475B1 · kind B1 · utility
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4Claims
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Key dates
| Filing date | May 17, 2019 |
| Grant date | Sep 17, 2019 |
| Priority date | — |
| Expiry date | May 17, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V40/1306
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The fingerprint sensing circuit includes sensing units and a sensing circuit. The sensing units are arranged as columns and rows. Each of the sensing units includes a sensing electrode. The sensing circuit is electrically connected to the sensing electrodes in at least two first sensing units of the sensing units in a first period to obtain a first fingerprint grey level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.