Fingerprint sensing chip and terminal device
US10943906B2 · kind B2 · utility
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16Claims
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Key dates
| Filing date | Oct 28, 2016 |
| Grant date | Mar 9, 2021 |
| Priority date | — |
| Expiry date | Oct 28, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V40/1306
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A fingerprint sensing chip and a terminal device are provided. The fingerprint sensing chip includes a first signal, a second signal and a driving signal. The second signal is generated based on the first signal, and the driving signal is generated by performing a ground raise process on the second signal. The driving signal is used to provide a driving voltage for fingerprint sensing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.