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    • 7. 发明授权
    • Method and apparatus to reduce non-linear distortion in mobile computing devices
    • 减少移动计算设备中非线性失真的方法和装置
    • US08693698B2
    • 2014-04-08
    • US12112792
    • 2008-04-30
    • Michael CarnesJerome Tu
    • Michael CarnesJerome Tu
    • H04B3/20H04M9/08
    • H04B1/123
    • Techniques to reduce distortion in acoustic signals in mobile computing devices are described. For example, a mobile computing device may comprise a speaker operative to receive a first signal and output a second signal. The mobile computing device may further comprise a first microphone operative to receive the second signal and a second microphone operative to receive a third signal. An echo canceller may be coupled to the first microphone and the second microphone and may be operative to compare the second signal and the third signal and reduce distortion in the third signal based on the comparison. Other embodiments are described and claimed.
    • 描述了在移动计算设备中减少声信号失真的技术。 例如,移动计算设备可以包括可操作以接收第一信号并输出​​第二信号的扬声器。 移动计算设备还可以包括可操作以接收第二信号的第一麦克风和可操作以接收第三信号的第二麦克风。 回声消除器可以耦合到第一麦克风和第二麦克风,并且可以用于比较第二信号和第三信号,并且基于比较来减少第三信号中的失真。 描述和要求保护其他实施例。