公开(公告)号：US09154187B2

公开(公告)日：2015-10-06

申请号：US13902179

申请日：2013-05-24

Applicant: NXP B.V.

Inventor： Sujan Pandey ,  Frits Steenhof

IPC: H04B3/23 ,  H04B1/10

CPC classification number: H04B3/23 ,  H04B1/1027

Abstract: Systems and methods for operating a filter for echo cancellation are described. In one embodiment, a method for operating a filter for echo cancellation involves monitoring at least one of a filter coefficient of the filter and an echo cancellation error to generate a monitoring result and, in response to the monitoring result, adjusting at least one of delay elements and filter taps of the filter to vary an impulse response of the filter. Other embodiments are also described.

Abstract translation: 描述了用于操作用于回波消除的滤波器的系统和方法。 在一个实施例中，一种用于操作用于回波消除的滤波器的方法包括监视滤波器的滤波器系数和回波消除误差中的至少一个以产生监测结果，并且响应于监视结果，调整至少一个延迟 滤波器的元件和滤波器抽头以改变滤波器的脉冲响应。 还描述了其它实施例。

公开(公告)号：US20140348276A1

公开(公告)日：2014-11-27

申请号：US13902179

申请日：2013-05-24

Applicant: NXP B.V.

Inventor： Sujan Pandey ,  Frits Steenhof

IPC: H04B1/10

CPC classification number: H04B3/23 ,  H04B1/1027

Abstract: Systems and methods for operating a filter for echo cancellation are described. In one embodiment, a method for operating a filter for echo cancellation involves monitoring at least one of a filter coefficient of the filter and an echo cancellation error to generate a monitoring result and, in response to the monitoring result, adjusting at least one of delay elements and filter taps of the filter to vary an impulse response of the filter. Other embodiments are also described.

Abstract translation: 描述了用于操作用于回波消除的滤波器的系统和方法。 在一个实施例中，一种用于操作用于回波消除的滤波器的方法包括监视滤波器的滤波器系数和回波消除误差中的至少一个以产生监测结果，并且响应于监视结果，调整至少一个延迟 滤波器的元件和滤波器抽头以改变滤波器的脉冲响应。 还描述了其它实施例。