Fingerprint identification apparatus and method capable of simultaneously identifying fingerprint and oxygen saturation
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United States of America Patent
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Sep 26, 2017
Grant Date -
Jun 23, 2016
app pub date -
Dec 22, 2015
filing date -
Dec 22, 2014
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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.
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