Fingerprint-reading system
US6459804B2 · kind B2 · utility
98Cited by
19References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 13, 2001 |
| Grant date | Oct 1, 2002 |
| Priority date | — |
| Expiry date | Jun 13, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V40/1335
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A fingerprint-reading system includes a fingerprint sensor having an active surface sensitive to the pressure and a temperature of a finger. The surface area of this sensor is far smaller than the surface area of the fingerprint to be read. The reading is done when the sensor and the finger are in contact and in a relative motion of sliding of the sensor and the finger with respect to each other. The system reconstitutes a complete image of the fingerprint from the partial images given by the sensor during this motion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.