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:
Sep. 10, 2019
Filed:
Sep. 24, 2015
Harman International Industries, Inc., Stamford, CT (US);
Russell H. Lambert, Highland, UT (US);
HARMAN INTERNATIONAL INDUSTRIES, INCORPORATED, Stamford, CT (US);
Abstract
A software application uncovers phase spreading that corrupts the linear response filters of a nonlinear system and executes a corrective algorithm that generates true-phase filters of the response over all nonlinear orders used in the analysis. The application first outputs a signal with logarithmically changing frequency, as a stimulus to generate a set of Farina harmonic response filters. The application then constructs an identity model and excites the identity model with an identical input under identical conditions, to generate a set of spreading function filters. The application computes the inverse of the spreading function filters and convolves the inverse spreading function filters with the Farina harmonic response filters to generate a set of spreading corrected filters. Finally, the application constructs the unmixing Chebyshev matrix and convolves the spreading correction filters with the unmixing Chebyshev matrix to remove the spreading and generate harmonically pure and phase-corrected filters.