Fingerprint identification apparatus and method capable of simultaneously identifying fingerprint and oxygen saturation
US9770199B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 22, 2015 |
| Grant date | Sep 26, 2017 |
| Priority date | — |
| Expiry date | Apr 14, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V40/1382
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A fingerprint identification method capable of simultaneously identifying fingerprint image and oxygen saturation is provided. The method may include allowing for a finger to be placed on a light reception surface of a photoelectron sensor module, enabling emission of an invisible light and a visible light, receiving light intensity signals corresponding to the invisible light penetrated into the finger and then reflected by the finger and the visible light reflected from the finger using the photoelectron sensor module, converting the light intensity signals to photocurrent signals by the photoelectron sensor module, converting the photocurrent signals to a corresponding first digital signal and a second digital signal by an analog/digital converting module, and outputting a fingerprint image corresponding to the first digital signal and a finger oxygen saturation image corresponding to the second digital signal by the processor module.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.