The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 12, 1990
Filed:
Jan. 25, 1988
Brian H Fishbine, Albuquerque, NM (US);
Glenn M Fishbine, Eden Prairie, MN (US);
Theodore D Klein, Mound, MN (US);
Daniel E Germann, Minneapolis, MN (US);
C.F.A. Technologies, Inc., Eden Prairie, MN (US);
Abstract
A method for generating data characteristic of a rolled fingerprint image in real time. A finger is continuously rolled across a finger receiving surface of an optical device. The finger receiving surface is imaged to generate digital data representative of fingerprint images propagated therefrom. A first array of data characteristic of a fingerprint image of a first finger slice is stored, and merged into a composite array. After the first array is merged into the composite array, a second array of data characteristic of a second finger slice which is adjacent to and overlaps the first finger slice is stored. The second array is then merged into the composite array by storing data in the composite array as a function of a comparison and an average of data in the composite array and second array which are characteristic of overlapping portions of the finger slices. The steps of storing and merging are then repeated for third and subsequent arrays characteristic of finger slices as the finger is rolled, until the composite array characterizes the rolled fingerprint image.