发明名称 |
Cascade echo canceler arrangement |
摘要 |
The problem of tracking rapid changes in the echo signals associated with modems is eliminated by using an echo canceler consisting of cascaded adaptive filters. Each filter in the structure contributes to the modeling of the overall echo path impulse response, with a longer filter providing the ability to model long echo path impulse responses and a shorter filter providing the ability to track changes in the echo path impulse response over time.
|
申请公布号 |
US6009083(A) |
申请公布日期 |
1999.12.28 |
申请号 |
US19980022708 |
申请日期 |
1998.02.12 |
申请人 |
LUCENT TECHNOLOGIES, INC. |
发明人 |
FLANAGAN, RICHARD THOMAS;WERNER, JEAN-JACQUES |
分类号 |
H04B3/23;(IPC1-7):H04B3/23 |
主分类号 |
H04B3/23 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|