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公开(公告)号：US10714114B2
公开(公告)日：2020-07-14
申请号：US15969755
申请日：2018-05-02
申请人： UBTECH Robotics Corp
发明人： Youjun Xiong , Haoming Li , Pinxiu Wen , Yanhui Xia
IPC分类号： G10L21/00 , A61F11/06 , H04R3/00 , G10L21/0208 , B25J13/00 , G10L21/0216
摘要： The present disclosure provides a noise reduction processing method, system and terminal device. In the present disclosure, a position angle of a far-field audio input sound source and a microphone array as well as a rotation angle of a head servo of a robot are obtained, and then a target rotation angle of the robot is calculated. The head servo of the robot is controlled to rotate according to the target rotation angle such that the robot moves along with the far-field sound source, and a beam area is changed according to the target rotation angle to enable a sound source enhancement area to process far-field audios. As a result, the noise reduction performance of the microphone array beam is effectively improved.
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公开(公告)号：US10891945B2
公开(公告)日：2021-01-12
申请号：US16232051
申请日：2018-12-26
发明人： Youjun Xiong , Haoming Li , Yanhui Xia , Liyang Li , Pinxiu Wen
摘要： The present disclosure discloses a method and an apparatus for judging termination of sound reception and a terminal device. The method including: performing a voice activity detection on a current sound clip to obtain a first value; performing a semantic relevance detection on the current sound clip and a next sound clip by deep learning to obtain a second value; performing a weighted calculation on the first value and the second value to obtain a third value; comparing the third value with a preset threshold; and determining whether sound reception of the current sound clip is terminated based on the comparison result.
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公开(公告)号：US20190361664A1
公开(公告)日：2019-11-28
申请号：US16163582
申请日：2018-10-18
申请人： UBTECH Robotics Corp
发明人： Youjun Xiong , Liyang Li , Yanhui Xia , Haoming Li
摘要： The present disclosure provides a robot and speech interaction recognition rate improvement circuit and method thereof. In the circuit, the main controller transmits a pre-recorded servo sound file to the first decoder in response to detecting the robot being in a motion state; the first decoder decodes the servo sound file to obtain a first sound analog signal of a servo sound; the analog-to-digital converter converts the first sound analog signal of the servo sound into a first sound digital signal, and converts a second sound analog signal collected by the microphone into a second sound digital signal; and the main controller further performs a suppression process on the servo sound in the second sound digital signal based on the first sound digital signal and the second sound digital signal. As a result, the influence of the sound of the servo of the robot is effectively reduced.
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公开(公告)号：US10747494B2
公开(公告)日：2020-08-18
申请号：US16163582
申请日：2018-10-18
申请人： UBTECH Robotics Corp
发明人： Youjun Xiong , Liyang Li , Yanhui Xia , Haoming Li
摘要： The present disclosure provides a robot and speech interaction recognition rate improvement circuit and method thereof. In the circuit, the main controller transmits a pre-recorded servo sound file to the first decoder in response to detecting the robot being in a motion state; the first decoder decodes the servo sound file to obtain a first sound analog signal of a servo sound; the analog-to-digital converter converts the first sound analog signal of the servo sound into a first sound digital signal, and converts a second sound analog signal collected by the microphone into a second sound digital signal; and the main controller further performs a suppression process on the servo sound in the second sound digital signal based on the first sound digital signal and the second sound digital signal. As a result, the influence of the sound of the servo of the robot is effectively reduced.
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公开(公告)号：US20190156848A1
公开(公告)日：2019-05-23
申请号：US15969755
申请日：2018-05-02
申请人： UBTECH Robotics Corp
发明人： Youjun Xiong , Haoming Li , Pinxiu Wen , Yanhui Xia
IPC分类号： G10L21/0208 , B25J13/00
CPC分类号： G10L21/0208 , B25J13/003 , G10L2021/02166
摘要： The present disclosure provides a noise reduction processing method, system and terminal device. In the present disclosure, a position angle of a far-field audio input sound source and a microphone array as well as a rotation angle of a head servo of a robot are obtained, and then a target rotation angle of the robot is calculated. The head servo of the robot is controlled to rotate according to the target rotation angle such that the robot moves along with the far-field sound source, and a beam area is changed according to the target rotation angle to enable a sound source enhancement area to process far-field audios. As a result, the noise reduction performance of the microphone array beam is effectively improved.
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