HOTWORD RECOGNITION
First 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.
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Accused Products
Abstract
Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for receiving audio data corresponding to an utterance, determining that the audio data corresponds to a hotword, generating a hotword audio fingerprint of the audio data that is determined to correspond to the hotword, comparing the hotword audio fingerprint to 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 comparison indicates a similarity between the hotword audio fingerprint and one of the one or more stored audio fingerprints that satisfies a predetermined threshold, and in response to detecting that the hotword audio fingerprint matches a stored audio fingerprint, disabling access to a computing device into which the utterance was spoken.
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Citations
20 Claims
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1. A computer-implemented method comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A system comprising one or more computers and one or more storage devices storing instructions that are operable, when executed by the one or more computers, to cause the one or more computers to perform operations comprising:
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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. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A computer-readable storage device storing software comprising instructions executable by one or more computers which, upon such execution, cause the one or more computers to perform operations comprising:
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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. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification