FINGERPRINT IDENTIFICATION APPARATUS AND METHOD CAPABLE OF SIMULTANEOUSLY IDENTIFYING FINGERPRINT AND OXYGEN SATURATION

摘要

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.

主权项

1. A fingerprint identification apparatus capable of simultaneously identifying a fingerprint image and oxygen saturation to identify fingerprint pattern and blood oxygen of a finger, comprising:
a first light-emitting element to emit an invisible light to the finger; a second light-emitting element to emit a visible light to the finger; a photoelectron sensor module having a light reception surface on which the finger is placed, the photoelectron sensor module receiving a first photo intensity signal of the invisible light reflected from the finger and converting the first photo intensity signal to a first photocurrent signal, and the photoelectron sensor module receiving a second photo intensity signal of the invisible light reflected from the finger and converting the second photo intensity signal to a second photocurrent signal; an analog/digital converting module electrically connected to the photoelectron sensor module, for converting the first photocurrent signal to a first digital signal and converting the second photocurrent signal to a second digital signal; and a processor module electrically connected to the analog/digital converting module for outputting a fingerprint image corresponding to the first digital signal to be recognized and outputting a finger oxygen saturation image corresponding to the second digital signal to be recognized.