Invention Application
WO2011127569A1 FLEXIBLE AND SCALABLE COMBINED INNOVATION CODEBOOK FOR USE IN CELP CODER AND DECODER
审中-公开
灵活和可扩展的组合创新编码在CELP编码器和解码器中使用的代码
- Patent Title: FLEXIBLE AND SCALABLE COMBINED INNOVATION CODEBOOK FOR USE IN CELP CODER AND DECODER
- Patent Title (中): 灵活和可扩展的组合创新编码在CELP编码器和解码器中使用的代码
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Application No.: PCT/CA2011/000398Application Date: 2011-04-08
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Publication No.: WO2011127569A1Publication Date: 2011-10-20
- Inventor: BESSETTE, Bruno
- Applicant: VOICEAGE CORPORATION , BESSETTE, Bruno
- Applicant Address: 750 Lucerne Road, Suite 250 Town of Mount Royal, Quebec, H3R 2H6 CA
- Assignee: VOICEAGE CORPORATION,BESSETTE, Bruno
- Current Assignee: VOICEAGE CORPORATION,BESSETTE, Bruno
- Current Assignee Address: 750 Lucerne Road, Suite 250 Town of Mount Royal, Quebec, H3R 2H6 CA
- Agency: PRINCE, Gaétan
- Priority: US61/324,191 20100414
- Main IPC: G10L19/12
- IPC: G10L19/12
Abstract:
In a CELP coder, a combined innovation codebook coding device comprises a pre-quantizer of a first, adaptive-codebook excitation residual, and a CELP innovation-codebook search module responsive to a second excitation residual produced from the first, adaptive-codebook excitation residual. In a CELP decoder, a combined innovation codebook comprises a de-quantizer of pre-quantized coding parameters into a first excitation contribution, and a CELP innovation-codebook structure responsive to CELP innovation-codebook parameters to produce a second excitation contribution.
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