07-07-2017 дата публикации
Номер: KR1020170077988A
Принадлежит:
The present invention relates to an actual biometric fingerprint authentication method using skin impedance. According to the present invention, the actual biometric fingerprint authentication method using skin impedance is a method performed through an apparatus having a sensor module in which a fingerprint sensor for sensing a fingerprint based on skin contact and an electrode unit, including two or more electrodes capable of touching the skin during the fingerprint sensing, are combined. The actual biometric fingerprint authentication method comprises: a first step of setting, as a control variable, at least one of a current path, a contact voltage, a frequency, and a current density which can be controlled through the electrode unit, and setting, as a measurement variable, at least one of a current applying time, a skin humidity, a contact area, a contact pressure, and a temperature which can be measured during the contact fingerprint sensing process through the fingerprint sensor; ...
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