Coefficient splitting structure for vector quantization bit allocation and dequantization
    81.
    发明授权
    Coefficient splitting structure for vector quantization bit allocation and dequantization 有权
    用于矢量量化位分配和去量化的系数分解结构

    公开(公告)号:US08630849B2

    公开(公告)日:2014-01-14

    申请号:US11911775

    申请日:2006-11-15

    IPC分类号: G10L19/12 G10L21/00

    CPC分类号: G10L19/07 G10L2019/0005

    摘要: A method and apparatus to convert a linear predictive coding (LPC) coefficient into a coefficient having order characteristics, such as a line spectrum frequency (LSF), and to vector quantize the coefficient having the order characteristics when a speech signal is encoded. The method and apparatus split the vector of the coefficient having the order characteristics into a plurality of subvectors, select a codebook in which an available bit is variably allocated to each subvector according to distribution of elements of each subvector, and quantize each subvector according to the selected codebook. The method and apparatus use normalized codebooks.

    摘要翻译: 将线性预测编码(LPC)系数转换成具有诸如线谱频率(LSF)等阶特征的系数的方法和装置,并且在语音信号被编码时向矢量量化具有阶特征的系数。 该方法和装置将具有有序特征的系数的向量分解为多个子向量,根据每个子向量的元素的分布,选择可用比特被可变地分配给每个子向量的码本,并且根据 所选码本。 该方法和装置使用归一化码本。

    METHOD, MEDIUM, AND SYSTEM ENCODING/DECODING MULTI-CHANNEL SIGNAL
    84.
    发明申请
    METHOD, MEDIUM, AND SYSTEM ENCODING/DECODING MULTI-CHANNEL SIGNAL 有权
    方法,介质和系统编码/解码多通道信号

    公开(公告)号:US20120288099A1

    公开(公告)日:2012-11-15

    申请号:US13557848

    申请日:2012-07-25

    IPC分类号: H04R5/00

    摘要: A multi-channel signal decoding method is provided. A down-mixed signal representative of a multi-channel signal is decoded, and parameters representing characteristic relations between channels of the multi-channel signal are decoded. An additional parameter is estimated by using the decoded parameters, and the decoded down-mixed signal is up-mixed by using the decoded parameters and the estimated parameter so as to decode the multi-channel signal.

    摘要翻译: 提供了一种多通道信号解码方法。 解码表示多声道信号的下混信号,并对表示多声道信号的声道之间的特征关系的参数进行解码。 通过使用解码参数来估计附加参数,并且通过使用解码参数和估计参数对解码的下混合信号进行混合,以解码多声道信号。

    METHOD, MEDIUM, AND APPARATUS ENCODING AND/OR DECODING EXTENSION DATA FOR SURROUND
    85.
    发明申请
    METHOD, MEDIUM, AND APPARATUS ENCODING AND/OR DECODING EXTENSION DATA FOR SURROUND 审中-公开
    方法,介质和装置编码和/或解码扩展数据

    公开(公告)号:US20120281842A1

    公开(公告)日:2012-11-08

    申请号:US13551235

    申请日:2012-07-17

    IPC分类号: H04R5/00

    摘要: A method, medium, and apparatus encoding and/or decoding an audio signal to surround data. While encoding spatial information, which can up-mix an audio signal to a surround signal, to extension data, a length of a payload corresponding to the spatial information is encoded and a payload of the spatial information is decoded using the length of the payload. Accordingly, compatibility of the spatial information can be provided, and the spatial information can be transmitted by effectively embedding the spatial information.

    摘要翻译: 编码和/或解码音频信号以包围数据的方法,介质和装置。 在将可将音频信号上调到环绕信号的空间信息编码到扩展数据的同时,对与空间信息相对应的有效载荷的长度进行编码,并且使用有效载荷的长度对空间信息的有效载荷进行解码。 因此,可以提供空间信息的兼容性,并且可以通过有效地嵌入空间信息来发送空间信息。

    Method, medium, and system encoding/decoding multi-channel signal
    86.
    发明授权
    Method, medium, and system encoding/decoding multi-channel signal 有权
    方法,中,系统编码/解码多通道信号

    公开(公告)号:US08254584B2

    公开(公告)日:2012-08-28

    申请号:US12107117

    申请日:2008-04-22

    IPC分类号: H04H20/47

    摘要: A multi-channel signal decoding method is provided. A down-mixed signal representative of a multi-channel signal is decoded, and parameters representing characteristic relations between channels of the multi-channel signal are decoded. An additional parameter is estimated by using the decoded parameters, and the decoded down-mixed signal is up-mixed by using the decoded parameters and the estimated parameter so as to decode the multi-channel signal.

    摘要翻译: 提供了一种多通道信号解码方法。 解码表示多声道信号的下混信号,并对表示多声道信号的声道之间的特征关系的参数进行解码。 通过使用解码参数来估计附加参数,并且通过使用解码参数和估计参数对解码的下混合信号进行混合,以解码多声道信号。

    Xylitol Producing Microorganism Introduced with Arabinose Metabolic Pathway and Production Method of Xylitol Using the Same
    88.
    发明申请
    Xylitol Producing Microorganism Introduced with Arabinose Metabolic Pathway and Production Method of Xylitol Using the Same 有权
    用阿拉伯糖代谢途径引入的木糖醇生产微生物和使用其的木糖醇的生产方法

    公开(公告)号:US20120171739A1

    公开(公告)日:2012-07-05

    申请号:US13391073

    申请日:2011-01-18

    IPC分类号: C12P7/18 C12N1/19

    CPC分类号: C12P7/18

    摘要: The present invention relates to an efficient production method of xylitol by using the xylitol producing microorganism introduced with arabinose metabolic pathway to inhibit the production of arabitol, the byproduct, and instead to use arabinose only for cell metabolism in xylose/arabinose mixed medium. More precisely, to express efficiently L-arabinose isomerase (araA), L-ribulokinase (araB) and L-ribulose-5-phosphate 4-epimerase (araD) in Candida tropicalis, codon optimization was performed. Then, each gene was inserted in the gene expression cassette containing the glyceraldehyde-3-phosphate dehydrogenase promoter and the selection marker URA3, which was introduced into Candida sp. microorganism. As a result, arabitol, the byproduct interrupting the purification and crystallization of xylitol could be inhibited, making the production method of xylitol of the present invention more efficient. The xylitol producing microorganism introduced with arabinose metabolic pathway of the present invention can be effectively used for the production of xylitol with high productivity by inhibiting the generation of arabitol.

    摘要翻译: 本发明涉及通过使用引入了阿拉伯糖代谢途径的木糖醇生产微生物来抑制阿糖醇(副产物)的产生的代谢产物,而是仅将木糖/阿拉伯糖混合培养基中的细胞代谢使用阿拉伯糖,从而有效地生产木糖醇。 更准确地说,为了在热带假丝酵母中有效地表达L-阿拉伯糖异构酶(araA),L-核糖激酶(araB)和L-核酮糖-5-磷酸4-差向异构酶(araD),进行密码子优化。 然后将每个基因插入含有甘油醛-3-磷酸脱氢酶启动子和选择标记URA3的基因表达盒中,将其引入假丝酵母属 微生物。 结果,可以抑制中和木糖醇的纯化和结晶的副产物,从而使本发明的木糖醇的生产方法更有效。 引入本发明的阿拉伯糖代谢途径的木糖醇生产微生物可以通过抑制阿拉伯糖醇的产生而以高生产率有效地用于生产木糖醇。