Finger position sensing methods and apparatus

Details Finger position sensing methods and apparatus Finger position sensing methods and apparatus

2005-04-15

2008-12-09

Ahmed, Samir A (Department: 2624)

Image analysis

Applications

Personnel identification

C345S174000

Reexamination Certificate

active

07463756

ABSTRACT:
A finger position sensing apparatus, typically used in a fingerprint sensing system, includes a position pickup plate disposed generally orthogonally with respect to an expected direction of movement of a finger and a plurality of position drive plates having different spacings from the position pickup plate to define plurality of position sensor gaps between respective position drive plates and the position pickup plate. The position drive plates are dimensioned and spaced from the position pickup plate to sense the bulk of a finger rather than fingerprint features.

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