US 12,293,751 B2
Interactive noise cancelling headphone
Shima Jahani, West Lafayette, IN (US); and Hamid Basaeri, Cambridge, MA (US)
Assigned to Purdue Research Foundation, West Lafayette, IN (US)
Filed by Purdue Research Foundation, West Lafayette, IN (US)
Filed on Apr. 13, 2023, as Appl. No. 18/134,242.
Claims priority of provisional application 63/330,567, filed on Apr. 13, 2022.
Prior Publication US 2023/0335099 A1, Oct. 19, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. G10K 11/16 (2006.01); G10K 11/178 (2006.01); H04R 3/02 (2006.01)
CPC G10K 11/17813 (2018.01) [G10K 11/17827 (2018.01)] 20 Claims
OG exemplary drawing
 
1. A method of classifying an incoming signal based on predetermined models of likely signals, comprising:
receiving an incoming time-varying signal;
dividing the incoming time-varying signal into a plurality of snippets, the plurality of snippets having a single or a plurality of durations;
transforming each snippet into an associated frequency spectrum, thus generating a plurality of spectra;
for each spectrum of the plurality of spectra, constructing a time-frequency image into a plurality of time-frequency images;
combining the plurality of time-frequency images into a single histogram of time-frequency image;
detecting one or more time-frequency classes of unwanted noise in the single histogram; and
outputting each of the one or more detected classes.