发明名称 |
ADAPTIVE EQUALIZER, ACOUSTIC ECHO CANCELLER DEVICE, AND ACTIVE NOISE CONTROL DEVICE |
摘要 |
A variable update step size is determined in proportion to a magnitude ratio or magnitude difference between a first residual signal and a second residual signal. The first residual signal is obtained by using adaptive filter coefficient sequence, where the adaptive filter coefficient sequence has been obtained in previous operations of the adaptive equalizer. The second residual signal is obtained by using a prior update adaptive filter coefficient sequence, where the prior update adaptive filter coefficient sequence is obtained by performing a coefficient update with an arbitrary prior update step size on the adaptive filter coefficient sequence having been obtained in previous operations of the adaptive equalizer.
|
申请公布号 |
US2013315408(A1) |
申请公布日期 |
2013.11.28 |
申请号 |
US201213984136 |
申请日期 |
2012.03.29 |
申请人 |
YANO ATSUYOSHI;AWANO TOMOHARU;MITSUBISHI ELECTRIC CORPORATION |
发明人 |
YANO ATSUYOSHI;AWANO TOMOHARU |
分类号 |
G10K11/175 |
主分类号 |
G10K11/175 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|