发明名称 |
METHOD AND ELECTRONIC DEVICE FOR DETECTING NOISE IN A SIGNAL BASED ON AUTOCORRELATION COEFFICIENT GRADIENTS |
摘要 |
<p>An electronic device can be operated to detect noise, such as wind noise. A microphone signal is generated by a microphone. Autocorrelation coefficients are determined based on the microphone signal. Gradient values are determined from the autocorrelation coefficients. The presence of a noise component in the microphone signal is determined based on the gradient values</p> |
申请公布号 |
EP1661433(B1) |
申请公布日期 |
2014.06.04 |
申请号 |
EP20040740475 |
申请日期 |
2004.06.30 |
申请人 |
SONY ERICSSON MOBILE COMMUNICATIONS AB |
发明人 |
GUSTAVSSON, STEFAN |
分类号 |
G10L25/00;G10L11/00;G10L21/02;H04R25/00 |
主分类号 |
G10L25/00 |
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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