The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 06, 2015
Filed:
Jul. 27, 2012
Applicants:
Daniel Youngner, Maple Grove, MN (US);
Yue Liu, Wayzata, MN (US);
Lisa Lust, Minneapolis, MN (US);
Inventors:
Assignee:
Honeywell International Inc., Morristown, NJ (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01J 3/04 (2006.01); G01J 3/28 (2006.01); G01J 3/457 (2006.01); G01J 3/02 (2006.01); G01J 3/18 (2006.01); G01J 3/14 (2006.01);
U.S. Cl.
CPC ...
G01J 3/0237 (2013.01); G01J 3/2803 (2013.01); G01J 3/457 (2013.01); G01J 3/0229 (2013.01); G01J 3/0208 (2013.01); G01J 3/1804 (2013.01); G01J 3/14 (2013.01);
Abstract
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.