发明名称 |
Method and device for echo cancellation |
摘要 |
An echo cancellation system uses recursive determination of transmit and receive gains (Grt, Get) using a calculated adaptive variable at depending on the return (yt) to direct (xt) signal power ration when the estimated direct signal power (P1t) exceeds a threshold and equal to 1 for lower levels. Includes Independent claims for the procedure used by the system. |
申请公布号 |
EP1401183(B1) |
申请公布日期 |
2005.06.08 |
申请号 |
EP20030020042 |
申请日期 |
1996.09.10 |
申请人 |
FRANCE TELECOM |
发明人 |
SCALART, PASCAL;DUHAMEL, PIERRE;BENAMAR, ABDELKRIM |
分类号 |
G10K11/178;H03H17/02;H03H21/00;H04B3/23;H04M1/60;H04M9/08;H04R3/02;H04R29/00;(IPC1-7):H04M9/08 |
主分类号 |
G10K11/178 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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