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公开(公告)号：US11250851B2
公开(公告)日：2022-02-15
申请号：US16783826
申请日：2020-02-06
Applicant: Amazon Technologies, Inc.
Inventor： Christopher Wayne Lockhart , Matthew Joseph Cole , Xulei Liu
Abstract: A system and method for temporarily disabling keyword detection to avoid detection of machine-generated keywords. A local device may operate two keyword detectors. The first keyword detector operates on input audio data received by a microphone to capture keywords uttered by a user. In these instances, the keyword may be detected by the first detector and the audio data may be transmitted to a remote device for processing. The remote device may generate output audio data to be sent to the local device. The local device may process the output audio data to determine that it also includes the keyword. The device may then disable the first keyword detector while the output audio data is played back by an audio speaker of the local device. Thus the local device may avoid detection of a keyword originating from the output audio. The first keyword detector may be reactivated after a time interval during which the keyword might be detectable in the output audio.
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公开(公告)号：US10079015B1
公开(公告)日：2018-09-18
申请号：US15370216
申请日：2016-12-06
Applicant: Amazon Technologies, Inc.
Inventor： Christopher Wayne Lockhart , Matthew Joseph Cole , Xulei Liu
CPC classification number: G10L15/22 , G10L15/30 , G10L15/32 , G10L2015/088 , G10L2015/223
Abstract: A system and method for temporarily disabling keyword detection to avoid detection of machine-generated keywords. A local device may operate two keyword detectors. The first keyword detector operates on input audio data received by a microphone to capture keywords uttered by a user. In these instances, the keyword may be detected by the first detector and the audio data may be transmitted to a remote device for processing. The remote device may generate output audio data to be sent to the local device. The local device may process the output audio data to determine that it also includes the keyword. The device may then disable the first keyword detector while the output audio data is played back by an audio speaker of the local device. Thus the local device may avoid detection of a keyword originating from the output audio. The first keyword detector may be reactivated after a time interval during which the keyword might be detectable in the output audio.
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公开(公告)号：US12249331B2
公开(公告)日：2025-03-11
申请号：US18144465
申请日：2023-05-08
Applicant: Amazon Technologies, Inc.
Inventor： Christopher Wayne Lockhart , Matthew Joseph Cole , Xulei Liu
Abstract: A system and method for temporarily disabling keyword detection to avoid detection of machine-generated keywords. A local device may operate two keyword detectors. The first keyword detector operates on input audio data received by a microphone to capture keywords uttered by a user. In these instances, the keyword may be detected by the first detector and the audio data may be indicated for speech processing. The system may determine output audio data responsive to the input audio data. The local device may process the output audio data to determine that it also includes the keyword. The device may then disable the first keyword detector while the output audio data is played back by an audio speaker of the local device. Thus the local device may avoid detection of a keyword originating from the output audio. The first keyword detector may be reactivated after a time interval during which the keyword might be detectable in the output audio.
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公开(公告)号：US20220157311A1
公开(公告)日：2022-05-19
申请号：US17590406
申请日：2022-02-01
Applicant: Amazon Technologies, Inc.
Inventor： Christopher Wayne Lockhart , Matthew Joseph Cole , Xulei Liu
Abstract: A system and method for temporarily disabling keyword detection to avoid detection of machine-generated keywords. A local device may operate two keyword detectors. The first keyword detector operates on input audio data received by a microphone to capture keywords uttered by a user. In these instances, the keyword may be detected by the first detector and the audio data may be indicated for speech processing. The system may determine output audio data responsive to the input audio data. The local device may process the output audio data to determine that it also includes the keyword. The device may then disable the first keyword detector while the output audio data is played back by an audio speaker of the local device. Thus the local device may avoid detection of a keyword originating from the output audio. The first keyword detector may be reactivated after a time interval during which the keyword might be detectable in the output audio.
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Patent Agency Ranking
公开(公告)号：US20200175989A1
公开(公告)日：2020-06-04
申请号：US16783826
申请日：2020-02-06
Applicant: Amazon Technologies, Inc.
Inventor： Christopher Wayne Lockhart , Matthew Joseph Cole , Xulei Liu
Abstract: A system and method for temporarily disabling keyword detection to avoid detection of machine-generated keywords. A local device may operate two keyword detectors. The first keyword detector operates on input audio data received by a microphone to capture keywords uttered by a user. In these instances, the keyword may be detected by the first detector and the audio data may be transmitted to a remote device for processing. The remote device may generate output audio data to be sent to the local device. The local device may process the output audio data to determine that it also includes the keyword. The device may then disable the first keyword detector while the output audio data is played back by an audio speaker of the local device. Thus the local device may avoid detection of a keyword originating from the output audio. The first keyword detector may be reactivated after a time interval during which the keyword might be detectable in the output audio.
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公开(公告)号：US20230360647A1
公开(公告)日：2023-11-09
申请号：US18144465
申请日：2023-05-08
Applicant: Amazon Technologies, Inc.
Inventor： Christopher Wayne Lockhart , Matthew Joseph Cole , Xulei Liu
Abstract: A system and method for temporarily disabling keyword detection to avoid detection of machine-generated keywords. A local device may operate two keyword detectors. The first keyword detector operates on input audio data received by a microphone to capture keywords uttered by a user. In these instances, the keyword may be detected by the first detector and the audio data may be indicated for speech processing. The system may determine output audio data responsive to the input audio data. The local device may process the output audio data to determine that it also includes the keyword. The device may then disable the first keyword detector while the output audio data is played back by an audio speaker of the local device. Thus the local device may avoid detection of a keyword originating from the output audio. The first keyword detector may be reactivated after a time interval during which the keyword might be detectable in the output audio.
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公开(公告)号：US11646027B2
公开(公告)日：2023-05-09
申请号：US17590406
申请日：2022-02-01
Applicant: Amazon Technologies, Inc.
Inventor： Christopher Wayne Lockhart , Matthew Joseph Cole , Xulei Liu
CPC classification number: G10L15/22 , G10L15/02 , G10L15/08 , G10L15/26 , G10L15/30 , G10L15/32 , G10L2015/025 , G10L2015/088 , G10L2015/223
Abstract: A system and method for temporarily disabling keyword detection to avoid detection of machine-generated keywords. A local device may operate two keyword detectors. The first keyword detector operates on input audio data received by a microphone to capture keywords uttered by a user. In these instances, the keyword may be detected by the first detector and the audio data may be indicated for speech processing. The system may determine output audio data responsive to the input audio data. The local device may process the output audio data to determine that it also includes the keyword. The device may then disable the first keyword detector while the output audio data is played back by an audio speaker of the local device. Thus the local device may avoid detection of a keyword originating from the output audio. The first keyword detector may be reactivated after a time interval during which the keyword might be detectable in the output audio.
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公开(公告)号：US10679625B1
公开(公告)日：2020-06-09
申请号：US16131705
申请日：2018-09-14
Applicant: Amazon Technologies, Inc.
Inventor： Christopher Wayne Lockhart , Matthew Joseph Cole , Xulei Liu
Abstract: A system and method for temporarily disabling keyword detection to avoid detection of machine-generated keywords. A local device may operate two keyword detectors. The first keyword detector operates on input audio data received by a microphone to capture keywords uttered by a user. In these instances, the keyword may be detected by the first detector and the audio data may be transmitted to a remote device for processing. The remote device may generate output audio data to be sent to the local device. The local device may process the output audio data to determine that it also includes the keyword. The device may then disable the first keyword detector while the output audio data is played back by an audio speaker of the local device. Thus the local device may avoid detection of a keyword originating from the output audio. The first keyword detector may be reactivated after a time interval during which the keyword might be detectable in the output audio.
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公开(公告)号：US10186265B1
公开(公告)日：2019-01-22
申请号：US15370319
申请日：2016-12-06
Applicant: Amazon Technologies, Inc.
Inventor： Christopher Wayne Lockhart , Matthew Joseph Cole , Xulei Liu
Abstract: A system and method for temporarily disabling keyword detection to avoid detection of machine-generated keywords. Audio data received for output by audio speakers is first captured by an effect component, such as an audio equalizer. The effect component may perform various operations including altering the audio data, copying the audio data and delaying the time in which the output audio is sent to the audio speakers. The effect component may generate a copy of the audio data and transmit or route the copy of the audio data to a secondary keyword detector via an audio channel, resulting in a further delay. The secondary detector may determine that the copy of the processed audio data includes a keyword that is likely to be output during a first time interval. The secondary detector may then transmit a signal to a primary keyword detector to disable keyword detection during the first time interval of the output audio.
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