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:
Mar. 02, 2010
Filed:
Jun. 27, 2007
Walid A. Atia, Lexington, MA (US);
Dale C. Flanders, Lexington, MA (US);
Robert K. Jenner, South Hamilton, MA (US);
Lawrence P. Mcdermott, Groton, MA (US);
Bartley C. Johnson, North Andover, MA (US);
Walid A. Atia, Lexington, MA (US);
Dale C. Flanders, Lexington, MA (US);
Robert K. Jenner, South Hamilton, MA (US);
Lawrence P. McDermott, Groton, MA (US);
Bartley C. Johnson, North Andover, MA (US);
Axsun Technologies, Inc., Billerica, MA (US);
Abstract
A tunable laser spectroscopic carpet identification system comprises a tunable laser spectroscopy system for generating a tunable signal that is transmitted to a carpet sample. The system detects the tunable signal after interaction with the carpet sample so that an analyzer is able to relate a spectral response of the carpet sample to a chemical composition of the carpet sample. In one example, the spectroscopy system comprises a laser cavity in which the tunable signal is generated, a semiconductor gain medium in the laser cavity, and a tunable element for controlling a wavelength of tunable signal generated in the laser cavity. To deal with variations in water content, the analyzer estimates a water content of the carpet sample using the spectral response of the carpet sample and then determines the chemical composition of the carpet sample in part based on the estimate of the water content.