发明名称 |
SOUND SOURCE VECTOR GENERATOR, VOICE ENCODER, AND VOICE DECODER |
摘要 |
<p>A random code vector reading section and a random codebook of a conventional CELP type speech coder/decoder are respectively replaced with an oscillator for outputting different vector streams in accordance with values of input seeds, and a seed storage section for storing a plurality of seeds . This makes it unnecessary to store fixed vectors as they are in a fixed codebook (ROM), thereby considerably reducing the memory capacity. <IMAGE></p> |
申请公布号 |
EP0883107(A1) |
申请公布日期 |
1998.12.09 |
申请号 |
EP19970911460 |
申请日期 |
1997.11.06 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD |
发明人 |
YASUNAGA, KAZUTOSHI;MORII, TOSHIYUKI;WATANABE, TAISUKE;EHARA, HIROYUKI |
分类号 |
G10L19/00;G10L19/04;G10L19/08;G10L19/12;G10L19/14;G10L21/00;(IPC1-7):G10L9/14;G10L9/18 |
主分类号 |
G10L19/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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