Optics: measuring and testing – Document pattern analysis or verification
Reexamination Certificate
2005-04-26
2005-04-26
Stafira, Michael P. (Department: 2877)
Optics: measuring and testing
Document pattern analysis or verification
C382S124000, C382S116000, C358S514000
Reexamination Certificate
active
06885439
ABSTRACT:
To provide a fingerprint input device including a collected fiber member that is brought into intimate contact with a fingerprint surface of a finger, a planar light source for illuminating said fingerprint surface, and a two-dimensional image sensor for detecting a light reflected from the fingerprint surface and a light scattered in the finger and emitted from the fingerprint surface, the two-dimensional image sensor having a plurality of photoelectric conversion element arranged two-dimensionally on a substrate. The fingerprint input device detects a fingerprint image and a plethysmogram or acceleration plethysmogram by switching between a mode, in which electric signals produced in the plurality of photoelectric conversion elements are output simultaneously, and a mode, in which electric signals produced in the plurality of photoelectric conversion elements are output sequentially. Thus, the fingerprint input device having a simple configuration can detect the fingerprint image or the plethysmogram with high precision.
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Hayes & Soloway P.C.
NEC Corporation
Stafira Michael P.
Valentin II Juan D
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