Title: A method to eliminate echo number-receiving and conference system
Application Number: 200610160843 Application Date: 2006.11.30
Publication Number: 1964405 Publication Date: 2007.05.16
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: H04M3/56;H04M9/08
Applicant(s) Name: Huawei Technologies Co., Ltd. Address:
Inventor(s) Name: Zhu Xiangwen;Wu Zongwu;Xu Bo;Shu Xihui
Attorney & Agent: daichang meng
Abstract:
    The disclosed method for eliminating echo signal comprises: calculating energy for received number signal; according to received signal, analyzing the number and recording the receiving time; comparing the signal energy and time between current number and last number, if the energy difference over a threshold while the time difference less time threshold, determining the received number as echo, and removing the echo. This invention is well efficient.
Time: 12