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:
Oct. 11, 2022
Filed:
Jun. 15, 2018
Regents of the University of Minnesota, Minneapolis, MN (US);
Logan L. Grado, Minneapolis, MN (US);
Matthew D. Johnson, Minneapolis, MN (US);
Theoden I. Netoff, Minneapolis, MN (US);
REGENTS OF THE UNIVERSITY OF MINNESOTA, Minneapolis, MN (US);
Abstract
Systems and methods for digital signal processing using a sliding windowed infinite Fourier transform ('SWIFT') algorithm are described. A discrete-time Fourier transform ('DTFT') of an input signal is computed over an infinite-length temporal window that is slid from one sample in the input signal to the next. The DTFT with the temporal window at a given sample point is effectively calculated by phase shifting and decaying the DTFT calculated when the temporal window was positioned at the previous sample point and adding the current sample to the result.