发明授权
- 专利标题： Systems, methods, and apparatus for split-band filtering and encoding of a wideband signal
- 专利标题（中）： 分离带滤波和宽带信号编码的系统，方法和装置
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申请号： US11397432申请日： 2006-04-03
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公开(公告)号： US08364494B2公开(公告)日： 2013-01-29
- 发明人: Koen Bernard Vos , Ananthapadmanabhan Arasanipalai Kandhadai
- 申请人： Koen Bernard Vos , Ananthapadmanabhan Arasanipalai Kandhadai
- 申请人地址： US CA San Diego
- 专利权人： QUALCOMM Incorporated
- 当前专利权人： QUALCOMM Incorporated
- 当前专利权人地址： US CA San Diego
- 代理商 Heejong Yoo
- 主分类号： G10L19/00
- IPC分类号： G10L19/00 ; G10L19/14
摘要：
A wideband speech encoder according to one embodiment includes a filter bank having a lowband processing path and a highband processing path. The processing paths have overlapping frequency responses. A first encoder is configured to encode a speech signal produced by the lowband processing path according to a first coding methodology. A second encoder is configured to encode a speech signal produced by the highband processing path according to a second coding methodology that is different than the first coding methodology.
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