发明名称 |
Noise suppression |
摘要 |
A method of noise suppression to suppress noise in a signal containing background noise (314) in a communications path between a cellular communications network and a mobile terminal. The method comprises the steps of: estimating and up-dating a spectrum of the background noise (332, 334); using the background noise spectrum to suppress noise in the signal; generating an indication to indicate the operation of at least one of a discontinuous transmission unit (DTX) and a bad frame handling unit (BFI); and freezing estimating and up-dating of the spectrum of the background noise when the indication is present.
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申请公布号 |
US2005027520(A1) |
申请公布日期 |
2005.02.03 |
申请号 |
US20040888261 |
申请日期 |
2004.07.09 |
申请人 |
MATTILA VILLE-VEIKKO;PAAJANEN ERKKI;VAHATALO ANTTI |
发明人 |
MATTILA VILLE-VEIKKO;PAAJANEN ERKKI;VAHATALO ANTTI |
分类号 |
H04B15/02;G10L21/02;G10L21/0208;G10L21/0216;(IPC1-7):G10L21/00 |
主分类号 |
H04B15/02 |
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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