公开(公告)号：EP1708398A1

公开(公告)日：2006-10-04

申请号：EP05710068.7

申请日：2005-02-10

申请人： Matsushita Electric Industrial Co., Ltd.

发明人： MURAKAMI, Yutaka ,  KOBAYASHI, Kiyotaka ,  ORIHASHI, Masayuki ,  MORII, Toshiyuki

IPC分类号： H04J15/00

CPC分类号： H04L1/0618

摘要： When space-time block code signals (103, 104) are to be transmitted, the patterns thereof are changed in accordance with data to be transmitted. This advantageously allows a good-quality data transmission to be achieved by the space-time block code signals (103, 104). In addition, since data can be transmitted by use of the patterns of the space-time block code signals (103, 104), the data transmission efficiency can be improved.

摘要翻译： 当要发送空时块码信号（103,104）时，其模式根据要发送的数据而改变。 这有利于通过时空块码信号（103,104）来实现高质量的数据传输。 此外，由于可以通过使用空时块码信号（103,104）的模式来发送数据，所以可以提高数据传输效率。

公开(公告)号：EP1619664A1

公开(公告)日：2006-01-25

申请号：EP04730659.2

申请日：2004-04-30

申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

发明人： SATO, Kaoru ,  MORII, Toshiyuki

IPC分类号： G10L19/04 ,  G10L19/12 ,  H03M7/30

CPC分类号： G10L19/24

摘要： Base layer coding section 101 encodes an input signal to obtain base layer coded information. Base layer decoding section 102 decodes the base layer coded information to obtain a base layer decoded signal and long term prediction information (pitch lag). Adding section 103 inverts the polarity of the base layer decoded signal to add to the input signal, and obtains a residual signal. Enhancement layer coding section 104 encodes a long term prediction coefficient calculated using the long term prediction information and the residual signal to obtain enhancement layer coded information. Base layer decoding section 152 decodes the base layer coded information to obtain the base layer decoded signal and long term prediction information. Using the long term prediction information, enhancement layer decoding section 153 decodes the enhancement layer coded information to obtain an enhancement layer decoded signal. Adding section 154 adds the base layer decoded signal and enhancement layer decoded signal to obtain a speech/sound signal. It is thereby possible to implement scalable coding with small amounts of calculation and coded information.

摘要翻译： 基层编码单元101对输入信号进行编码，得到基本层编码信息。 基层解码单元102对基本层编码信息进行解码，得到基本层解码信号和长期预测信息（音调滞后）。 加法部103将基本层解码信号的极性反转，加到输入信号上，得到残留信号。 增强层编码部分104对使用长期预测信息和残差信号计算的长期预测系数进行编码，以获得增强层编码信息。 基层解码单元152对基本层编码信息进行解码，得到基本层解码信号和长期预测信息。 使用长期预测信息，增强层解码单元153对增强层编码信息进行解码，得到增强层解码信号。 添加部分154添加基本层解码信号和增强层解码信号以获得语音/声音信号。 从而可以用少量的计算和编码信息实现可扩展编码。

公开(公告)号：EP1339040A1

公开(公告)日：2003-08-27

申请号：EP01998967.2

申请日：2001-11-29

申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. ,  Nippon Telegraph and Telephone Corporation

发明人： YASUNAGA, Kazutoshi ,  MORII, Toshiyuki ,  EHARA, Hiroyuki ,  MANO, Kazunori,. c/o NTT Int.Prop. Center ,  HIWASAKI, Yusuke,. c/o NTT Int. Prop. Center

IPC分类号： G10L19/04 ,  G10L19/12 ,  H03M7/30

CPC分类号： G10L19/07 ,  G10L2019/0005 ,  G10L2019/0014 ,  H03M7/3082

摘要： The present invention carries out pre-selection on many LPC codevectors stored in an LSF codebook 101 using a weighted Euclidean distortion as a measure and carries out a full-code selection on the LPC codevectors left after the pre-selection using an amount of distortion in a spectral space as a measure. This makes it possible to improve the quantization performance of the LPC parameter vector quantizer and improve the quality of synthesized speech of the speech coder/decoder.

摘要翻译： 本发明使用加权的欧氏距离失真作为测量，对存储在LSF码本101中的许多LPC码矢量进行预选择，并且在预选择之后的LPC码矢量上执行全码选择，使用失真量 光谱空间作为度量。 这使得可以提高LPC参数矢量量化器的量化性能并提高语音编码器/解码器的合成语音质量。

公开(公告)号：EP1083547A1

公开(公告)日：2001-03-14

申请号：EP00906624.2

申请日：2000-03-02

申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

发明人： EHARA, Hiroyuki ,  MORII, Toshiyuki

IPC分类号： G10L19/10 ,  H03M7/30

CPC分类号： G10L19/107 ,  G10L19/10 ,  G10L2019/0008

摘要： The total number of entries of an algebraic codebook is decreased by liming a random code vector generated from the algebraic codebook, and entries of a random codebook with a large number of pulses are assigned to a decreased portion. Further, the number of entries of the decreased portion is adaptively switched according to a mode.

摘要翻译： 代数码本的条目总数通过使从代数码本生成的随机码矢量变小而减少，并且具有大量脉冲的随机码本的条目被分配给减少的部分。 此外，根据模式自适应地切换减少部分的条目数。

公开(公告)号：EP0883107A1

公开(公告)日：1998-12-09

申请号：EP97911460.0

申请日：1997-11-06

申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD

发明人： YASUNAGA, Kazutoshi ,  MORII, Toshiyuki ,  WATANABE, Taisuke ,  EHARA, Hiroyuki

IPC分类号： G10L9/14 ,  G10L9/18

CPC分类号： G10L19/135 ,  G10L19/12 ,  G10L2019/0007 ,  G10L2019/0013

摘要： 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.

摘要翻译： 分别用传统CELP型语音编码器/解码器的随机码矢量读取部分和随机码本替换为根据输入种子的值输出不同矢量流的振荡器，以及用于存储多个种子的种子存储部分。 这使得不需要将固定向量存储在固定码本（ROM）中，从而大大降低存储器容量。

公开(公告)号：EP0858069A1

公开(公告)日：1998-08-12

申请号：EP97933895.1

申请日：1997-08-04

申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

发明人： EHARA, Hiroyuki ,  MORII, Toshiyuki

IPC分类号： G10L9/14 ,  G10L9/18

CPC分类号： G10L19/12 ,  G10L2019/0005

摘要： The present invention intends to enhance a sound quality of a sound source generating portion in a CELP type voice encoding device and a CELP type voice decoding device. A pitch peak position of an adaptive code vector is obtained by a pitch peak position calculator 12, a window for emphasizing an amplitude of the pitch peak position is prepared by an amplitude emphasizing window generator 13, and an amplitude of a noise code vector corresponding to the pitch peak position is emphasized by an amplitude emphasizing window unit 16. Alternatively, pulse search positions are determined in such a manner that they become dense in a pitch peak position vicinity and coarse in the other portions. Based on the determined search positions, a pulse position searching is performed. Alternatively, the pitch peak position and pitch cycle information in the immediately previous sub-frame and the pitch cycle information in the present sub-frame are used to backward adapt and switch a sound source constitution. Sound quality is thus enhanced, while an influence of a transmission line error is inhibited from being propagated.

摘要翻译： 本发明旨在提高CELP型语音编码装置和CELP型语音解码装置中的声源生成部的声音质量。 通过音调峰值位置计算器12获得自适应码矢量的音调峰值位置，由幅度增强窗口生成器13准备用于强调音调峰值位置的振幅的窗口，并且对应于 音调峰值位置由幅度增强窗单元16强调。或者，脉冲搜索位置以这样的方式确定，使得它们在音调峰值位置附近变得致密并且在其它部分中变粗。 基于所确定的搜索位置，执行脉冲位置搜索。 或者，使用前一子帧中的音调峰值位置和音调周期信息以及本子帧中的音调周期信息来反向适应和切换声源结构。 从而增强了音质，同时抑制了传输线误差的影响。