Hybrid multi-sensor biometric identification device
US8073204B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 31, 2007 |
| Grant date | Dec 6, 2011 |
| Priority date | — |
| Expiry date | Oct 7, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V40/13
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An improved fingerprint sensing device is provided with multiple sensing apparatus, two or more of which operating on different sensing principles. For example, a capacitive sensor may be integrally formed with an optical sensor on a single substrate. Ideally, the multiple sensing apparatus are disposed such that they may sense nearly identical portions of a fingerprint simultaneously. A primary sensor may be employed to establish the identity of a user based on a fingerprint, while a secondary sensor may be employed to establish that the fingerprint is part of a live human (anti-spoofing). Integrated light sources may be provided to drive an optical sensor. The light sources may also provide visual cues for usage, and enhance the aesthetics of the device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.