Efficient spectral matching, particularly for multicomponent spectra
US7698098B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 18, 2008 |
| Grant date | Apr 13, 2010 |
| Priority date | — |
| Expiry date | Nov 13, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/35
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An unknown spectrum obtained from infrared or other spectroscopy can be compared to spectra in a reference library to find the best matches. The best match spectra can then each in turn be combined with the reference spectra, with the combinations also being screened for best matches versus the unknown spectrum. These resulting best matches can then also undergo the foregoing combination and comparison steps. The process can repeat in this manner until an appropriate stopping point is reached, for example, when a desired number of best matches are identified, when some predetermined number of iterations has been performed, etc. This methodology is able to return best-match spectra (and combinations of spectra) with far fewer computational steps and greater speed than if all possible combinations of reference spectra are considered.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.