Capacitive biometric sensor

Details Capacitive biometric sensor Capacitive biometric sensor

2007-03-20

2007-03-20

Sines, Brian (Department: 1743)

Image analysis

Applications

Personnel identification

C382S124000, C382S125000, C382S126000, C422S050000, C422S068100, C422S082010, C436S149000

Reexamination Certificate

active

10272342

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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