公开(公告)号：US07965853B2

公开(公告)日：2011-06-21

申请号：US11935142

申请日：2007-11-05

申请人： Shawn X. Gao ,  Sigfrid D. Soli ,  Hsiang Feg Chi

发明人： Shawn X. Gao ,  Sigfrid D. Soli ,  Hsiang Feg Chi

IPC分类号： H04R25/00

CPC分类号： H04R25/453 ,  H03H21/0012 ,  H03H2021/0078 ,  H04R25/505 ,  H04R2430/03

摘要： An improved method for adaptively cancelling acoustic feedback in hearing aids and other audio amplification devices. Feedback cancellation is limited to a frequency band that encompasses all unstable frequencies. By limiting the bandwidth of the feedback cancellation signal, the distortion due to the adaptive filter is minimized and limited only to the unstable feedback regions. A relatively simple signal processing algorithm is used to produce highly effective results with minimal signal distortion.

摘要翻译： 一种用于自适应地消除助听器和其他音频放大装置中的声反馈的改进方法。 反馈消除限于包含所有不稳定频率的频带。 通过限制反馈消除信号的带宽，由于自适应滤波器引起的失真被最小化并且仅限于不稳定的反馈区域。 使用相对简单的信号处理算法来产生具有最小信号失真的高效结果。

公开(公告)号：US07292699B2

公开(公告)日：2007-11-06

申请号：US11089399

申请日：2005-03-23

申请人： Shawn X. Gao ,  Sigfrid D. Soli ,  Hsiang-Feg Chi

发明人： Shawn X. Gao ,  Sigfrid D. Soli ,  Hsiang-Feg Chi

IPC分类号： H04R25/00

CPC分类号： H04R25/453 ,  H03H21/0012 ,  H03H2021/0078 ,  H04R25/505 ,  H04R2430/03

摘要： An improved method for adaptively cancelling acoustic feedback in hearing aids and other audio amplification devices. Feedback cancellation is limited to a frequency band that encompasses all unstable frequencies. By limiting the bandwidth of the feedback cancellation signal, the distortion due to the adaptive filter is minimized and limited only to the unstable feedback regions. A relatively simple signal processing algorithm is used to produce highly effective results with minimal signal distortion.

摘要翻译： 一种用于自适应地消除助听器和其他音频放大装置中的声反馈的改进方法。 反馈消除限于包含所有不稳定频率的频带。 通过限制反馈消除信号的带宽，由于自适应滤波器引起的失真被最小化并且仅限于不稳定的反馈区域。 使用相对简单的信号处理算法来产生具有最小信号失真的高效结果。

公开(公告)号：US20080063230A1

公开(公告)日：2008-03-13

申请号：US11935273

申请日：2007-11-05

申请人： Shawn Gao ,  Sigfrid Soli ,  Hsiang-Feg Chi

发明人： Shawn Gao ,  Sigfrid Soli ,  Hsiang-Feg Chi

IPC分类号： H04R25/00

CPC分类号： H04R25/453 ,  H03H21/0012 ,  H03H2021/0078 ,  H04R25/505 ,  H04R2430/03

摘要： An improved method for adaptively cancelling acoustic feedback in hearing aids and other audio amplification devices. Feedback cancellation is limited to a frequency band that encompasses all unstable frequencies. By limiting the bandwidth of the feedback cancellation signal, the distortion due to the adaptive filter is minimized and limited only to the unstable feedback regions. A relatively simple signal processing algorithm is used to produce highly effective results with minimal signal distortion.

摘要翻译： 一种用于自适应地消除助听器和其他音频放大装置中的声反馈的改进方法。 反馈消除限于包含所有不稳定频率的频带。 通过限制反馈消除信号的带宽，由于自适应滤波器引起的失真被最小化并且仅限于不稳定的反馈区域。 使用相对简单的信号处理算法来产生具有最小信号失真的高效结果。

公开(公告)号：US20050163331A1

公开(公告)日：2005-07-28

申请号：US11089399

申请日：2005-03-23

申请人： Shawn Gao ,  Sigfrid Soli ,  Hsiang-Feg Chi

发明人： Shawn Gao ,  Sigfrid Soli ,  Hsiang-Feg Chi

IPC分类号： H03H21/00 ,  H04R25/00 ,  H04B15/00 ,  H04R27/00

CPC分类号： H04R25/453 ,  H03H21/0012 ,  H03H2021/0078 ,  H04R25/505 ,  H04R2430/03

摘要： An improved method for adaptively cancelling acoustic feedback in hearing aids and other audio amplification devices. Feedback cancellation is limited to a frequency band that encompasses all unstable frequencies. By limiting the bandwidth of the feedback cancellation signal, the distortion due to the adaptive filter is minimized and limited only to the unstable feedback regions. A relatively simple signal processing algorithm is used to produce highly effective results with minimal signal distortion.

摘要翻译： 一种用于自适应地消除助听器和其他音频放大装置中的声反馈的改进方法。 反馈消除限于包含所有不稳定频率的频带。 通过限制反馈消除信号的带宽，由于自适应滤波器引起的失真被最小化并且仅限于不稳定的反馈区域。 使用相对简单的信号处理算法来产生具有最小信号失真的高效结果。

公开(公告)号：US06876751B1

公开(公告)日：2005-04-05

申请号：US09409163

申请日：1999-09-30

申请人： Shawn X. Gao ,  Sigfrid D. Soli ,  Hsiang-Feg Chi

发明人： Shawn X. Gao ,  Sigfrid D. Soli ,  Hsiang-Feg Chi

IPC分类号： H03H21/00 ,  H04R25/00

CPC分类号： H04R25/453 ,  H03H21/0012 ,  H03H2021/0078 ,  H04R25/505 ,  H04R2430/03

摘要： An improved method for adaptively cancelling acoustic feedback in hearing aids and other audio amplification devices. Feedback cancellation is limited to a frequency band that encompasses all unstable frequencies. By limiting the bandwidth of the feedback cancellation signal, the distortion due to the adaptive filter is minimized and limited only to the unstable feedback regions. A relatively simple signal processing algorithm is used to produce highly effective results with minimal signal distortion.

公开(公告)号：US07965854B2

公开(公告)日：2011-06-21

申请号：US11935273

申请日：2007-11-05

申请人： Shawn X. Gao ,  Sigfrid D. Soli ,  Hsiang-Feg Chi

发明人： Shawn X. Gao ,  Sigfrid D. Soli ,  Hsiang-Feg Chi

IPC分类号： H04R25/00

CPC分类号： H04R25/453 ,  H03H21/0012 ,  H03H2021/0078 ,  H04R25/505 ,  H04R2430/03

摘要： An improved method for adaptively cancelling acoustic feedback in hearing aids and other audio amplification devices. Feedback cancellation is limited to a frequency band that encompasses all unstable frequencies. By limiting the bandwidth of the feedback cancellation signal, the distortion due to the adaptive filter is minimized and limited only to the unstable feedback regions. A relatively simple signal processing algorithm is used to produce highly effective results with minimal signal distortion.