发明授权
- 专利标题： Signal processing circuit and associated signal processing method applied to headset
- 专利标题（中）： 信号处理电路和相关信号处理方法应用于耳机
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申请号： US14509060申请日： 2014-10-08
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公开(公告)号： US09438983B2公开(公告)日： 2016-09-06
- 发明人: Cheng-Pin Chang , Yi-Chang Tu , Tsung-Peng Chuang , Sheng-Nan Chiu
- 申请人： Realtek Semiconductor Corp.
- 申请人地址： TW HsinChu
- 专利权人： Realtek Semiconductor Corp.
- 当前专利权人： Realtek Semiconductor Corp.
- 当前专利权人地址： TW HsinChu
- 代理商 Winston Hsu; Scott Margo
- 优先权： TW102142300A 20131120
- 主分类号： H04R1/10
- IPC分类号： H04R1/10 ; H04R5/04 ; H04R3/12
摘要：
The present invention provides a signal processing circuit and a signal processing method applied to a headset. In the present invention, the signal processing circuit adjusts gain and phase of a left channel signal and a right channel signal to generate a first adjust signal, and a recorded sound from a microphone is added by the first adjust signal to cancel a coupled signal. In addition, the signal processing circuit adjusts gain and phase of the right channel signal to generate a second adjust signal, and the right channel signal is added by the second adjust signal to cancel a coupled signal; and the signal processing circuit adjusts gain and phase of the left channel signal to generate a third adjust signal, and the left channel signal is added by the third adjust signal to cancel a coupled signal.
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