Patent 7894642 was granted and assigned to Precise Biometrics on February, 2011 by the United States Patent and Trademark Office.
A method and a device for checking fingerprints are described. The method comprises the steps of recording in succession at least two digital images of finger areas and comparing each of the recording images with a reference image that represents at least one previously recorded reference fingerprint from a reference finger areas. The device according to the invention is arranged to carry out the method.