发明名称 |
Echo canceler and operating method |
摘要 |
When an echo attenuation amount ACOM(i) is smaller than a desired echo attenuation amount ACOM, and an echo cancellation amount ACANC(i) is equal to or greater than a echo/noise ratio E/N(i), a block length computer increases the block length BL(i) and outputs that increased block length BL(i) to a block length controller. The echo canceler comprises such a block length computer and such a block length controller, wherefore the echo attenuation amount can ultimately be made to be equal to or greater than the desired echo attenuation amount.
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申请公布号 |
US6697486(B1) |
申请公布日期 |
2004.02.24 |
申请号 |
US20000533968 |
申请日期 |
2000.03.23 |
申请人 |
OKI ELECTRIC INDUSTRY CO., LTD. |
发明人 |
TAKADA MASASHI |
分类号 |
G10L15/20;G10L21/02;H04B3/06;H04B3/23;H04M1/60;(IPC1-7):H04B3/20 |
主分类号 |
G10L15/20 |
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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