Concealed dangerous articles detection method and device
US-9194796-B2 · Nov 24, 2015 · US
Tuned dynamic eigen spectroscopy systems
US8928880B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8928880-B2 |
| Application number | US-201213560220-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 27, 2012 |
| Priority date | Jul 28, 2011 |
| Publication date | Jan 6, 2015 |
| Grant date | Jan 6, 2015 |
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Abstract
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An apparatus for detecting gas concentrations includes a coded filter to oscillate proximate a resonant frequency. A photo detector is positioned below the coded filter such that the coded filter selectively blocks light that is directed at the photo detector. Optics are positioned to project spectral information on to the coded filter. A processor analyzes a signal received from the photo detector. The processor is adapted to weight a harmonic attic signal.
First claim
Opening claim text (preview).
The invention claimed is: 1. An apparatus for detecting gas concentrations, the apparatus comprising: a coded filter to oscillate at a selected frequency; a photo detector positioned below the coded filter such that the coded filter selectively blocks light that is directed at the photo detector; optics for projecting spectral information on to the coded filter; and a processor for analyzing a signal received from the photo detector, wherein the processor is adapted to wei…
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Physics · mapped topic
- G01J3/0237Primary
Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
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- What does patent US8928880B2 cover?
- An apparatus for detecting gas concentrations includes a coded filter to oscillate proximate a resonant frequency. A photo detector is positioned below the coded filter such that the coded filter selectively blocks light that is directed at the photo detector. Optics are positioned to project spectral information on to the coded filter. A processor analyzes a signal received from the photo dete…
- Who is the assignee on this patent?
- Youngner Daniel, Liu Yue, Lust Lisa, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification G01J3/0237. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Jan 06 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).