Biometric sensor with delay layer
US8201739B2 · kind B2 · utility
61Cited by
4References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 8, 2011 |
| Grant date | Jun 19, 2012 |
| Priority date | — |
| Expiry date | Mar 8, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V40/1306
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A biometric scanner is described and claimed. The scanner has a platen, an ultrasonic plane wave generator, an ultrasonic detector, and a delay layer residing between the generator and the detector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.