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DÉTECTION D'EMPREINTES DIGITALES AVEC DIFFÉRENTES CONFIGURATIONS CAPACITIVES
专利权人:
Fingerprint Cards AB
发明人:
RIEDIJK, Frank,THÖRNBLOM, Hans
申请号:
EP17872135
公开号:
EP3542311A4
申请日:
2017.11.02
申请国别(地区):
EP
年份:
2020
代理人:
摘要:
A method of determining a physical property of a finger using a sensor comprising a two-dimensional measuring arrangement including a plurality of measuring elements, each defining a measuring element position in the measuring arrangement, and each comprising a finger electrode spaced apart from the finger by a dielectric structure. For each measuring element position, the method comprises the steps of performing a first sensing operation using a first capacitive configuration, acquiring a first measurement value for the first capacitive configuration, performing a second sensing operation using a second capacitive configuration, acquiring a second measurement value for the second capacitive configuration. The physical property of the finger is determined based on the first and second measurement values for each measuring element position.
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