REFLECTION TYPE FINGERPRINT RECOGNITION DEVICE
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United States of America Patent
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May 25, 2017
app pub date -
Nov 21, 2016
filing date -
Nov 20, 2015
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Abstract
The present invention discloses a reflection type fingerprint recognition device, including a transparent layer, an optical sensor and at least two light sources, wherein each of the light sources being switched on in turn or emitting light of different frequency spectra or of different intensity from any other light source. With the implementation of the present invention, the following advantageous effects can be provided: structural simplicity to improve ease of manufacture and low manufacturing costs; reduction of space occupation enabling further applications; and maintaining same amount of information under same size of optical sensor to improve feature classification and reduce recognition error.
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