发明授权
- 专利标题: Method for seamless noise suppression on wideband to narrowband cell switching
- 专利标题(中): 宽带窄带小区切换无缝噪声抑制方法
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申请号: US11934494申请日: 2007-11-02
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公开(公告)号: US07856252B2公开(公告)日: 2010-12-21
- 发明人: Naveen Jacob
- 申请人: Naveen Jacob
- 申请人地址: US PA Allentown
- 专利权人: Agere Systems Inc.
- 当前专利权人: Agere Systems Inc.
- 当前专利权人地址: US PA Allentown
- 主分类号: H04M1/00
- IPC分类号: H04M1/00 ; H04B1/38
摘要:
A method for seamless noise suppression on wideband to narrowband cell switching is described. In one embodiment the method includes applying noise suppression to a telephone signal using a first noise suppressor while operating a telephone in a first operating mode, the first noise suppressor generating an estimate of a noise components of the telephone signal; switching the telephone from the first operating mode to a second operating mode; providing the estimate of the noise component as an input to a second noise suppressor different from the first noise suppressor, when the switching step is performed; and applying noise suppression to the telephone signal using the second noise suppressor by using the estimate of the noise component provided by the first noise suppressor when the switching step is performed.
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