发明名称 |
METHOD OF ESTIMATING NOISE LEVELS IN A COMMUNICATION SYSTEM |
摘要 |
<p>A method of estimating noise in data containing voice information and noise includes receiving the data as a sequence of input values; transforming the data by applying a first non linear mapping to the input values wherein the derivative function of the mapping decreases in magnitude as the input values increase in magnitude smoothing the transformed data; and transforming the smoothed transformed data by applying a second non linear mapping that is opposite to the first non linear mapping, to determine an estimate of the noise in the inputted data.</p> |
申请公布号 |
EP2132734(A2) |
申请公布日期 |
2009.12.16 |
申请号 |
EP20070872475 |
申请日期 |
2007.12.20 |
申请人 |
SKYPE LIMITED |
发明人 |
VOS, KOEN;SORENSEN, KARSTEN, VANDBORG;BERGENHEIM, JON |
分类号 |
G10L21/02;G10L21/0208;G10L21/0232 |
主分类号 |
G10L21/02 |
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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