Noninvasive alcohol sensor
US7386152B2 · kind B2 · utility
39Cited by
225References
39Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 8, 2005 |
| Grant date | Jun 10, 2008 |
| Priority date | — |
| Expiry date | Oct 6, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V40/14
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Methods and systems are provided for biometric sensing. An illumination subsystem provides light at discrete wavelengths to a skin site of an individual. A detection subsystem receives light scattered from the skin site. A computational unit is interfaced with the detection system. The computational unit has instructions for deriving a spatially distributed multispectral image from the received light at the discrete wavelengths. The computational unit also has instructions for comparing the derived multispectral image with a database of multispectral images to identify the individual.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.