Patent ID: 11929064
Assignee: GOOGLE LLC
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A computer-implemented method executed on data processing hardware that causes the data processing hardware to perform operations comprising:
obtaining a plurality of first training samples comprising utterances that contain a keyword spoken within a fixed duration of time, each first training sample comprising a respective sequence of input frames that each contain respective audio features characterizing phonetic components of the keyword;
obtaining a plurality of second training samples comprising additional utterances that do not contain the keyword spoken within the fixed duration of time; and
training an end-to-end neural network model on the plurality of first training samples and the plurality of second training samples by, for each first training sample:
applying a first binary label to a portion of the input frames in the respective sequence of input frames that contain the respective audio features characterizing the phonetic components at or near an end of the keyword; and
applying a second binary label to a remaining portion of the input frames in the respective sequence of input frames.