Under-screen fingerprint sensing device and fingerprint sensing method
US11580776B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 1, 2022 |
| Grant date | Feb 14, 2023 |
| Priority date | — |
| Expiry date | Mar 1, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V40/40
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An under-screen fingerprint sensing device and fingerprint sensing method are provided. The under-screen fingerprint sensing device includes a fingerprint sensor and a processor. The processor performs a first FFC on a first color original value, a second color original value, and a third color original value provided by the fingerprint sensor to determine whether a target object is a real finger. When the processor determines that the target object is an unreal finger, the processor performs a second FFC on the first color original value, the second color original value, and the third color original value to determine again whether the target object is the real finger.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.