Full roll fingerprint apparatus
US4946276A · kind A · utility
58Cited by
5References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 23, 1988 |
| Grant date | Aug 7, 1990 |
| Priority date | — |
| Expiry date | Sep 23, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V40/1335
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
As a live finger is rolled across a glass platen in an optical scan fingerprint apparatus, a series of lights turn on and off to demarcate the line along the platen at which the optical scan is being taken. In this fashion, the finger applied to the platen can be rotated across the platen at a rate that keeps sufficient track with the scan to provide a complete (nail-to-nail) full roll scan.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.