Patent ID: 9747926
Date: 2017-08-29
CPC Classifications: G06F,G10L

Claim:
1. A computer-implemented method comprising: receiving audio data corresponding to an utterance that is received while a computing device is operating in a lock mode, the computing device being configured to exit the lock mode based on determining that the audio data corresponds to a hotword; determining that the audio data corresponds to the hotword; generating a hotword audio fingerprint of the audio data that is determined to correspond to the hotword; determining a similarity between the hotword audio fingerprint and one or more stored audio fingerprints of audio data that was previously determined to correspond to the hotword; detecting whether the hotword audio fingerprint matches a stored audio fingerprint of audio data that was previously determined to correspond to the hotword based on whether the similarity between the hotword audio fingerprint and one of the one or more stored audio fingerprints satisfies a predetermined threshold; and in response to detecting that the hotword audio fingerprint matches a stored audio fingerprint, preventing the computing device into which the utterance was spoken from exiting the lock mode despite determining that the audio data corresponds to the hotword.