Invention Grant
US08462958B2 Apparatus and method for computing filter coefficients for echo suppression
有权
用于计算用于回波抑制的滤波器系数的装置和方法
- Patent Title: Apparatus and method for computing filter coefficients for echo suppression
- Patent Title (中): 用于计算用于回波抑制的滤波器系数的装置和方法
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Application No.: US12864890Application Date: 2009-01-16
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Publication No.: US08462958B2Publication Date: 2013-06-11
- Inventor: Fabian Kuech , Markus Kallinger , Christof Faller , Alexis Favrot
- Applicant: Fabian Kuech , Markus Kallinger , Christof Faller , Alexis Favrot
- Applicant Address: DE Munich
- Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
- Current Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
- Current Assignee Address: DE Munich
- Agency: Keating & Bennett, LLP
- Priority: DE102008039330 20080822
- International Application: PCT/EP2009/000270 WO 20090116
- International Announcement: WO2009/095161 WO 20090806
- Main IPC: H04B3/20
- IPC: H04B3/20
Abstract:
A preferred embodiment of an apparatus for computing filter coefficients for an adaptive filter for filtering a microphone signal so as to suppress an echo due to a loudspeaker signal includes an extractor for extracting a stationary component signal or a non-stationary component signal from the loudspeaker signal or from a signal derived from the loudspeaker signal, and a computer for computing the filter coefficients for the adaptive filter on the basis of the extracted stationary component signal or the extracted non-stationary component signal.
Public/Granted literature
- US20110019833A1 APPARATUS AND METHOD FOR COMPUTING FILTER COEFFICIENTS FOR ECHO SUPPRESSION Public/Granted day:2011-01-27
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