基本信息:
- 专利标题： 고정 코드북 탐색 장치 및 고정 코드북 탐색 방법
- 专利标题（英）：Fixed codebook searching device and fixed codebook searching method
- 专利标题（中）：固定代码搜索设备和固定的代码簿搜索方法
- 申请号：KR1020127004264 申请日：2007-03-08
- 公开(公告)号：KR101359147B1 公开(公告)日：2014-02-05
- 发明人： 에하라히로유키 , 요시다고지
- 申请人： 파나소닉 주식회사
- 申请人地址： ****, Oaza Kadoma, Kadoma-shi, Osaka, Japan
- 专利权人： 파나소닉 주식회사
- 当前专利权人： 파나소닉 주식회사
- 当前专利权人地址： ****, Oaza Kadoma, Kadoma-shi, Osaka, Japan
- 代理人： 제일특허법인
- 优先权： JPJP-P-2006-065399 2006-03-10; JPJP-P-2007-027408 2007-02-06
- 国际申请： PCT/JP2007/054529 2007-03-08
- 国际公布： WO2007105587 2007-09-20
- 主分类号： G10L19/12
- IPC分类号： G10L19/12
The fixed codebook searching apparatus for realizing a search of the fixed codebook of even the filter used for the sound source pulse characteristics that can not be represented by a lower triangular matrix by suppressing the increase in computation amount so that not it is just a little, sub-optimal (準 最適). This fixed codebook searching apparatus, the algebraic codebook 101 generates a pulse excitation vector, negative (-) negative to Pollution keonbol the impulse response of the perceptually weighted synthesis filter in an impulse response vector that has a value at the time of () and a convolution operation section (151) for generating a second impulse response vector that has a value in the time, the second and the matrix generating unit 152 to generate the convolution matrix of the Toeplitz type, using the impulse response vector, the algebraic codebook ( 101) for the convolution matrix created by the pulse sound source vector in the matrix generation section 152 generated by the arithmetic unit includes a convolution (153).
公开/授权文献:
- KR1020120032037A 고정 코드북 탐색 장치 및 고정 코드북 탐색 방법 公开/授权日：2012-04-04
信息查询:
EspacenetIPC结构图谱:
| G | 物理 |
| --G10 | 乐器；声学 |
| ----G10L | 语言分析或合成；语言识别 |
| ------G10L19/00 | 用于冗余度下降情形的语音分析—合成技术；语音编码或解码 |
| --------G10L19/04 | .利用预测技术 |
| ----------G10L19/08 | ..激励函数的确定或编码；长期预测参数的确定或编码 |
| ------------G10L19/12 | ...例如代码激励线性预测（CELP）声码器中的代码激励的确定或编码 |