Invention Grant
US08498407B2 Systems and methods for double-talk detection in acoustically harsh environments
失效
在声学恶劣环境中进行双方通话检测的系统和方法
- Patent Title: Systems and methods for double-talk detection in acoustically harsh environments
- Patent Title (中): 在声学恶劣环境中进行双方通话检测的系统和方法
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Application No.: US12326868Application Date: 2008-12-02
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Publication No.: US08498407B2Publication Date: 2013-07-30
- Inventor: Asif Iqbal Mohammad , Eddie L. T. Choy , Heejong Yoo
- Applicant: Asif Iqbal Mohammad , Eddie L. T. Choy , Heejong Yoo
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agent Todd Marlette; Espartaco Diaz Hidalgo
- Main IPC: H04M9/08
- IPC: H04M9/08
Abstract:
A communications device that is configured to detect double talk is described. An echo canceller is configured to cancel an echo from an input signal using an adaptive filter. A double-talk detector provides a double-talk statistic. The double-talk statistic is proportional to the ratio of the remaining echo energy in the cancellation error signal and the total cancellation error energy.
Public/Granted literature
- US20100135483A1 SYSTEMS AND METHODS FOR DOUBLE-TALK DETECTION IN ACOUSTICALLY HARSH ENVIRONMENTS Public/Granted day:2010-06-03
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