- 专利标题： SIGNAL CODEC DEVICE AND METHOD IN COMMUNICATION SYSTEM
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申请号： US16834930申请日： 2020-03-30
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公开(公告)号： US20200227061A1公开(公告)日： 2020-07-16
- 发明人: Mi-Suk LEE
- 申请人： Electronics and Telecommunications Research Institute
- 申请人地址： KR Daejeon
- 专利权人： Electronics and Telecommunications Research Institute
- 当前专利权人： Electronics and Telecommunications Research Institute
- 当前专利权人地址： KR Daejeon
- 优先权： com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@293f75dc com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@49eb65a7
- 主分类号： G10L19/26
- IPC分类号： G10L19/26
摘要：
The present invention relates to a codec device and method for encoding/decoding voice and audio signals in a communication system, wherein: a fixed codebook excited signal is generated by using a pulse index for a voice signal; a first adaptive codebook excited signal is generated by using a pitch index for the voice signal; a fixed codebook signal is generated by multiplying the fixed codebook excited signal by a fixed codebook gain; a first adaptive codebook signal is generated by multiplying the first adaptive codebook excited signal by a first adaptive codebook gain; and a synthesized filter excited signal is generated by adding the fixed codebook signal and the first adaptive codebook signal.
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