System and method of smoke detection using multiple wavelengths of light
US9915609B1 · kind B1 · utility
5Cited by
0References
13Claims
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Key dates
| Filing date | Jul 12, 2016 |
| Grant date | Mar 13, 2018 |
| Priority date | — |
| Expiry date | Aug 29, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08B29/185
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In accordance with certain embodiments, detection of a fire event via detection of scattered light of at least two wavelengths is based on rates of change between measurements of the scattered light of the different wavelengths.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.