Method and device for reducing smear in a rolled fingerprint image
US5748766A · kind A · utility
52Cited by
18References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 30, 1996 |
| Grant date | May 5, 1998 |
| Priority date | — |
| Expiry date | Apr 30, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F21/32
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A fingerprint image capture system reduces tip smear by ceasing to update a data array characteristic of the rolled fingerprint image behind an advancing freeze column at least about half way from the trailing edge to the leading edge of a finger contact strip.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.