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.

Date of Patent:
Aug. 15, 2023

Filed:

Mar. 06, 2020
Applicant:

Missouri State University, Springfield, MO (US);

Inventors:

Razib Iqbal, Springfield, MO (US);

Keiichi Yoshimatsu, Springfield, MO (US);

Joshua Ellis, Springfield, MO (US);

Assignee:

MISSOURI STATE UNIVERSITY, Springfield, MO (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01N 21/35 (2014.01); G01N 21/31 (2006.01);
U.S. Cl.
CPC ...
G01N 21/35 (2013.01); G01N 2021/3196 (2013.01); G01N 2021/3595 (2013.01);
Abstract

Spectra matching is widely used in various applications including the search for a spectrum of an unknown or subject material, chemical, or compound in an existing spectral database and quality control by means of comparing the spectra of products with standards. New systems and methods are described for identifying an unknown compound by calculating the similarities of Fourier-transform infrared (FTIR) spectra of organic compounds. The systems and methods incrementally calculate the spectral similarity based on the local spectral shapes. This reduces the bias caused by uneven weighing of large or broader peaks. In addition, the new systems and methods tolerant to the common issues in spectra matching including baseline offset, baseline sloping, and deviations in wavenumber axis alignment, suggesting its robustness and practical applicability.


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