发明名称 |
Apparatus and method for echo cancellation |
摘要 |
An apparatus and method for echo cancellation that detects and tracks the active regions of the echo channel impulse response rather than the entire echo channel impulse response and uses this sparse model to cancel the echo component of the received signal. Two sets of filter coefficients are used, one to remove and track the active regions and one to detect the active regions.
|
申请公布号 |
US2005117739(A1) |
申请公布日期 |
2005.06.02 |
申请号 |
US20040027515 |
申请日期 |
2004.12.30 |
申请人 |
DEMIREKLER LEVENT;PURKOVIC ALEKSANDER |
发明人 |
DEMIREKLER LEVENT;PURKOVIC ALEKSANDER |
分类号 |
H04M9/08;(IPC1-7):H04M9/08 |
主分类号 |
H04M9/08 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|