Spectral signature extraction for drug verification and identification
US8417540B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 21, 2009 |
| Grant date | Apr 9, 2013 |
| Priority date | — |
| Expiry date | Nov 2, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG16H20/10
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Systems and methods perform signature extraction from an acquired spectrum of a pharmaceutical. An acquired spectrum of the pharmaceutical is measured using a spectrometer. The acquired spectrum is obtained from the spectrometer using a processor. A system-response function of the spectrometer is removed from the acquired spectrum using the processor. An intensity of the acquired spectrum is normalized to a predetermined scale using the processor. Fluorescence is removed from the acquired spectrum using the processor. Finally, an extracted signature of the pharmaceutical is obtained from the remainder of the acquired spectrum using the processor. If the acquired spectrum of the pharmaceutical is measured by the spectrometer through a container holding the pharmaceutical, a spectrum of the container is removed from the remainder of the acquired spectrum to produce the extracted signature of the pharmaceutical using the processor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.