Invention Grant
- Patent Title: Systems, methods, and apparatus for split-band filtering and encoding of a wideband signal
- Patent Title (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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Application No.: US11397432Application Date: 2006-04-03
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Publication No.: US08364494B2Publication Date: 2013-01-29
- Inventor: Koen Bernard Vos , Ananthapadmanabhan Arasanipalai Kandhadai
- Applicant: Koen Bernard Vos , Ananthapadmanabhan Arasanipalai Kandhadai
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agent Heejong Yoo
- Main IPC: G10L19/00
- IPC: G10L19/00 ; G10L19/14
Abstract:
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.
Public/Granted literature
- US20070088558A1 Systems, methods, and apparatus for speech signal filtering Public/Granted day:2007-04-19
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