Method and system for calibration of an optical fingerprint sensing device
US10325134B2 · kind B2 · utility
3Cited by
16References
21Claims
0Family size
Assignee
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Key dates
| Filing date | Oct 12, 2018 |
| Grant date | Jun 18, 2019 |
| Priority date | — |
| Expiry date | Oct 12, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V40/1306
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method of initiating a calibration operation of an optical fingerprint sensing device comprising an array of photosensitive elements for capturing a fingerprint pattern, the method comprising acquiring information indicative of a change of an environmental parameter influencing the operation of the fingerprint sensing device; and if the change is larger than a predetermined threshold value, performing a calibration operation of the fingerprint sensing device. There is also provided a fingerprint sensing device configured to perform the method, and a consumer electronic device comprising such a fingerprint sensing device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.