Patent Document ID: 9786275
Application ID: 14385670
Patent Flag: 1

Claim One:
1. A non-transitory computer-readable medium with instructions stored thereon, that when executed by a processor, suppresses transient interference from a signal, by performing the steps, comprising: obtaining a training recording of at least one transient; computing a training set { λ t ( l )} l = 1 M of M spectral variance feature vectors; obtaining a recording of a signal and computing a set {λ y (l)} l=1 M of M spectral variance feature vectors; building at least one local model for each transient type; modeling a structure of the at least one local model as a graph; defining a filter from the graph; and suppressing the transient from the signal by applying the filter; wherein the at least one local model is built according to P i ⁡ ( λ y ⁡ ( l ) ) = η _ i + ∑ j = 1 L ⁢ 〈 log ⁡ ( λ y ⁡ ( l ) ) - η _ i , v _ i , j 〉 ⁢ v _ i , j ; ( 13 ) wherein λ y (l) represents a vector of spectral variance values of the measured signal corresponding to timeframe l; wherein η i represents a constant vector; wherein υ i,j represents a set of principal eigenvectors; and wherein the signal is a signal type selected from a group consisting of audio, speech, diagnostics for machinery, and diagnostics based on medical time series or images.