Patent Document ID: 9570069
Application ID: 14481372

Base Claim:
1. A method to detect a keyword in speech, comprising: generating, from a sequence of spectral feature vectors generated from the speech, a plurality of blocked feature vector sequences, wherein each of the plurality of blocked feature vector sequences comprises a respective subset of the plurality of feature vectors, wherein each of the plurality of blocked feature vector sequences overlap adjacent blocked feature vector sequences by a predefined count of feature vector sequences; and analyzing, by a neural network executing on one or more computer processors, each of the plurality of blocked feature vector sequences to detect the presence of the keyword in the speech.

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Claim 3:
3. The method of claim 1 , wherein an output of the neural network comprises a sequence of labels, wherein each of the sequence of labels indicates whether the keyword is present in a corresponding blocked feature vector sequence, the method further comprising: smoothing the sequence of labels to determine whether the keyword is in the speech.