Invention Grant
US07606183B2 Devices, softwares and methods with improved performance of acoustic echo canceller in VoIP communication
有权
声音回声消除器在VoIP通信中的性能改善的设备，软件和方法
- Patent Title: Devices, softwares and methods with improved performance of acoustic echo canceller in VoIP communication
- Patent Title (中): 声音回声消除器在VoIP通信中的性能改善的设备，软件和方法
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Application No.: US11536548Application Date: 2006-09-28
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Publication No.: US07606183B2Publication Date: 2009-10-20
- Inventor: Luke Surazski , Pascal Huart
- Applicant: Luke Surazski , Pascal Huart
- Applicant Address: US CA San Jose
- Assignee: Cisco Technology, Inc.
- Current Assignee: Cisco Technology, Inc.
- Current Assignee Address: US CA San Jose
- Agency: Stolowitz Ford Cowger LLP
- Main IPC: H04B3/20
- IPC: H04B3/20
Abstract:
Devices, softwares and methods send a warning signal when a periodic signal is present in the audio content of a VoIP connection. In response to the warning signal, an acoustic echo canceller of an IP telephone discontinues its adapting process. A signaling network switch detects when a periodic signal is present in the audio content, and issues a warning signal. A signaling call manager device, when it transmits a tone that has periodicity, it also transmits a warning signal.
Public/Granted literature
- US20070121600A1 DEVICES, SOFTWARES AND METHODS WITH IMPROVED PERFORMANCE OF ACOUSTIC ECHO CANCELER IN VoIP COMMUNICATION Public/Granted day:2007-05-31
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