Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Manfred Greschitz0
Franz Helminger0
Franz Wolf0
Klaus Gruber0
Date of Patent
March 20, 2007
0Patent Application Number
102723420
Date Filed
October 15, 2002
0Patent Primary Examiner
Patent abstract
In a capacitive biometric sensor, in particular, a fingerprint sensor, to determine the maximum contrast that can actually be achieved in that application in the gray scale values, in particular, of a fingerprint (dynamic resolution of the sensor), at least one measurement point composed of a dielectric material is integrated above each of the sensor electrodes on a sensor array.
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