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公开(公告)号：US11380326B2
公开(公告)日：2022-07-05
申请号：US16875236
申请日：2020-05-15
发明人： Changwoo Han , Minkyu Shin , Jonguk Yoo , Dokyun Lee , Kangseok Choi , Jaewon Lee , Hyeontaek Lim
IPC分类号： G10L15/00 , G10L15/22 , G10L15/02 , G10L19/008 , G10L15/16 , G10L15/08 , G10L21/0208
摘要： A speech recognition method includes receiving a first multi-channel audio signal; obtaining at least one of a speech signal characteristic or a noise signal characteristic for at least one frequency band of frequency bands corresponding to channel audio signals included in the first multi-channel audio signal; generating a signal with an enhanced speech component by performing beamforming on the first multi-channel audio signal based on the speech signal characteristic, a speech signal characteristic obtained for a previous frame that was obtained before a certain time that the first multi-channel audio signal was obtained, and the noise signal characteristic; determining whether the enhanced speech component includes a wake word; and based on determining that the enhanced speech component includes the wake word: activating a speech recognition operation based on the signal with the enhanced speech component.
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公开(公告)号：US11217267B2
公开(公告)日：2022-01-04
申请号：US17023880
申请日：2020-09-17
发明人： Changwoo Han , Minkyu Shin , Jonguk Yoo , Dokyun Lee , Kangseok Choi
IPC分类号： H04R29/00 , G10L25/51 , G06N3/08 , G10L21/0272 , G10L25/30
摘要： A method, performed by an electronic device, of identifying location information of an external includes: obtaining map information including location information for each time interval of a mobile device based on the mobile device moving while generating noise near the external device; obtaining audio signal information about an audio signal including the noise generated by the mobile device, the audio signal being collected by a microphone of the external device; identifying, from the audio signal information, a time point at which a noise level of the noise generated by the mobile device is highest; obtaining, from the map information, location information of the mobile device corresponding to the identified time point; and identifying the location information of the external device based on the obtained location information of the mobile device.
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