发明名称 |
ECHO CANCELLATION USING ULTRASOUND |
摘要 |
A method includes accessing signal data descriptive of a transmission sequence and pre-determined values associated with the transmission sequence. The signal data and the pre-determined values may be stored in a memory. The method includes transmitting a signal from a speaker of an electronic device according to the transmission sequence. The method includes generating a frame based on one or more signals received at a microphone of the electronic device. The one or more signals include an echo signal associated with the transmitted signal. The method includes processing the frame using the pre-determined values to produce an output frame in which a contribution associated with the echo signal is reduced. |
申请公布号 |
EP2920947(A1) |
申请公布日期 |
2015.09.23 |
申请号 |
EP20130785769 |
申请日期 |
2013.10.21 |
申请人 |
QUALCOMM INCORPORATED |
发明人 |
LEVIANT, MICHAEL;DAGAN, NOAM;NELSON, HUI-YA LIAO |
分类号 |
H04M9/08;G01S11/14 |
主分类号 |
H04M9/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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