发明名称 ECHO CANCELLATION FOR 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 US2014135077(A1) 申请公布日期 2014.05.15
申请号 US201313841359 申请日期 2013.03.15
申请人 QUALCOMM INCORPORATED 发明人 LEVIANT MICHAEL;DAGAN NOAM;NELSON HUI-YA LIAO
分类号 H04M9/08 主分类号 H04M9/08
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