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US 5,249,370 AGranted
Method and apparatus for fingerprint image processing
AssigneeDigital Biometrics, Inc.
InventorsBruce N. Stanger, Michael J. Miles, Glenn M. Fishbine
Life of this patent
Estimating the term…
Abstract
A finger drying component for use with a finger print image processing apparatus is disclosed. The drying component removes moisture from the finger so that an unsmudged finger print can be imaged. A preferred embodiment involves the use of a forced air dryer to conduct a stream of air across the optical imaging surface.
Claims15
A fingerprint image processing apparatus comprising:
- (a) a means for imaging having a contact surface adapted to receive a finger thereon;
- and
- (b) a drying means mounted on said imaging means in proximity with said contact surface, said drying means adapted for removing moisture from said contact surface and from a finger which is in proximity with said contact surface by directing a flow of air across said contact surface.
A method of preparing for fingerprint image processing, comprising the steps of:
- (a) providing a fingerprint image processing apparatus comprising a means for imaging having a contact surface adapted to receive a finger thereon, and a drying means mounted on said imaging means in proximity with said contact surface, said drying means adapted for removing moisture from said contact surface or from a finger which is in proximity with said contact surface by directing a flow of air across the said contact surface;
- and
- (b) exhausting a flow of air from said drying means so as to evaporate moisture from said contact surface.
A fingerprint image processing apparatus comprising:
- (a) a means for imaging having a contact surface adapted to receive a finger thereon;
- and
- (b) a drying means mounted on said imaging means and in proximity with said contact surface, said drying means comprising fluid flow directing means for directing a flow of a fluid across said contact surface.
Dependencies are inferred from the claim text.