Compact fingerprint recognizing apparatus illuminated with elect

Details Compact fingerprint recognizing apparatus illuminated with elect Compact fingerprint recognizing apparatus illuminated with elect

1996-04-15

1998-07-14

Moore, David K.

Image analysis

Applications

Personnel identification

G06K 962

Patent

active

057816514

ABSTRACT:
A fingerprint recognizing apparatus includes: a prism, an electroluminescent device secured or adhered on an incident surface of the prism for emitting a uniform light towards a finger-laying surface of the prism with the light beam reflected at the valleys of the fingerprint, a photosensor selected from a charge-coupled-device (CCD) sensing camera for picking up the image as reflected from the prism for converting the image signal to be a voltage signal, and an image processing and recognizing circuit for processing the voltage signal for fingerprint identification, wherein the energizing of the ELD is synchronized with the image processing and recognizing for a reliable fingerprint recognization.

REFERENCES:
patent: 5105467 (1992-04-01), Kim et al.
patent: 5109427 (1992-04-01), Yang
patent: 5210588 (1993-05-01), Lee
patent: 5467403 (1995-11-01), Fishbine et al.
patent: 5650640 (1997-07-01), Stafford et al.
patent: 5650842 (1997-07-01), Maase et al.

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