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    Multi-path trellis coded quantization method and multi-path coded quantizer using the same
    1.
    发明授权
    Multi-path trellis coded quantization method and multi-path coded quantizer using the same 失效
    多路径网格编码量化方法和使用其的多路径编码量化器

    公开(公告)号：US08706481B2

    公开(公告)日：2014-04-22

    申请号：US11608956

    申请日：2006-12-11

    申请人： Kang Eun Lee ,  Eun Mi Oh ,  Ho Sang Sung ,  Chang Yong Son

    发明人： Kang Eun Lee ,  Eun Mi Oh ,  Ho Sang Sung ,  Chang Yong Son

    IPC分类号： G10L19/12

    CPC分类号： G10L19/032

    摘要： A method of multi-path trellis coded quantization (TCQ) usable in a speech coding system, and a quantizer using the method. Specifically the method includes calculating accumulated distortions corresponding to 2N survivor paths, wherein N indicates an integer greater than two, each of the 2N survivor paths is going towards one of nodes at an i th stage of a trellis, and i indicates an integer greater than zero, comparing the accumulated distortions respectively corresponding to the 2N survivor paths to select N paths among the 2N survivor paths, wherein the accumulated distortions corresponding to selected N paths are smaller than the accumulated distortions corresponding to unselected N paths establishing the selected N paths as survivor paths going toward an i+1 th stage, and selecting an optimal path among the 2N survivor paths corresponding to each node of a last stage.

    摘要翻译： 一种可用于语音编码系统的多径网格编码量化（TCQ）的方法，以及使用该方法的量化器。 具体地，该方法包括计算对应于2N个幸存路径的累积失真，其中N表示大于2的整数，2N个幸存路径中的每一个正在网格的第i阶段中的一个节点，i表示大于 比较分别对应于2N个幸存路径的累积失真以选择2N个幸存路径中的N个路径，其中对应于所选N个路径的累积失真小于对应于建立所选择的N个路径的未选择的N个路径的累积失真作为幸存者 路径朝向第i + 1级，并且在对应于最后一级的每个节点的2N个幸存路径中选择最佳路径。

    MULTI-PATH TRELLIS CODED QUANTIZATION METHOD AND MULTI-PATH CODED QUANTIZER USING THE SAME
    2.
    发明申请
    MULTI-PATH TRELLIS CODED QUANTIZATION METHOD AND MULTI-PATH CODED QUANTIZER USING THE SAME 失效
    多路径TRELLIS编码量化方法和多路径编码量化器

    公开(公告)号：US20070233473A1

    公开(公告)日：2007-10-04

    申请号：US11608956

    申请日：2006-12-11

    申请人： Kang Eun LEE ,  Eun Mi Oh ,  Ho Sang Sung ,  Chang Yong Son

    发明人： Kang Eun LEE ,  Eun Mi Oh ,  Ho Sang Sung ,  Chang Yong Son

    IPC分类号： G10L19/00

    CPC分类号： G10L19/032

    摘要： A method of multi-path trellis coded quantization (TCQ) usable in a speech coding system, and a quantizer using the method. Specifically the method includes calculating accumulated distortions corresponding to 2N survivor paths, wherein N indicates an integer greater than two, each of the 2N survivor paths is going towards one of nodes at an i th stage of a trellis, and i indicates an integer greater than zero, comparing the accumulated distortions respectively corresponding to the 2N survivor paths to select N paths among the 2N survivor paths, wherein the accumulated distortions corresponding to selected N paths are smaller than the accumulated distortions corresponding to unselected N paths establishing the selected N paths as survivor paths going toward an i+1 th stage, and selecting an optimal path among the 2N survivor paths corresponding to each node of a last stage.

    摘要翻译： 一种可用于语音编码系统的多径网格编码量化（TCQ）的方法，以及使用该方法的量化器。 具体地，该方法包括计算对应于2N个幸存路径的累积失真，其中N表示大于2的整数，2N个幸存路径中的每一个正在网格的第i阶段中的一个节点，i表示大于 比较分别对应于2N个幸存路径的累积失真以选择2N个幸存路径中的N个路径，其中对应于所选N个路径的累积失真小于对应于建立所选择的N个路径的未选择的N个路径的累积失真作为幸存者 路径朝向第i + 1级，并且在对应于最后一级的每个节点的2N个幸存路径中选择最佳路径。

    Adaptive time and/or frequency-based encoding mode determination apparatus and method of determining encoding mode of the apparatus
    3.
    发明授权
    Adaptive time and/or frequency-based encoding mode determination apparatus and method of determining encoding mode of the apparatus 有权
    自适应时间和/或基于频率的编码模式确定装置和确定装置的编码模式的方法

    公开(公告)号：US08744841B2

    公开(公告)日：2014-06-03

    申请号：US11524274

    申请日：2006-09-21

    申请人： Eun Mi Oh ,  Ki Hyun Choo ,  Jung-Hoe Kim ,  Chang Yong Son

    发明人： Eun Mi Oh ,  Ki Hyun Choo ,  Jung-Hoe Kim ,  Chang Yong Son

    IPC分类号： G10L19/00

    CPC分类号： G10L19/0208 ,  G10L19/22

    摘要： An adaptive time/frequency-based encoding mode determination apparatus including a time domain feature extraction unit to generate a time domain feature by analysis of a time domain signal of an input audio signal, a frequency domain feature extraction unit to generate a frequency domain feature corresponding to each frequency band generated by division of a frequency domain corresponding to a frame of the input audio signal into a plurality of frequency domains, by analysis of a frequency domain signal of the input audio signal, and a mode determination unit to determine any one of a time-based encoding mode and a frequency-based encoding mode, with respect to the each frequency band, by use of the time domain feature and the frequency domain feature.

    摘要翻译： 一种自适应时间/频率编码模式确定装置，包括：时域特征提取单元，用于通过分析输入音频信号的时域信号来产生时域特征;频域特征提取单元，用于产生相应的频域特征; 通过对输入音频信号的频域信号的分析和模式确定单元来确定通过将与输入音频信号的帧相对应的频域划分成多个频域而产生的每个频带，以确定任何一个 基于时间的编码模式和基于频率的编码模式，通过使用时域特征和频域特征，相对于每个频带。

    Adaptive time and/or frequency-based encoding mode determination apparatus and method of determining encoding mode of the apparatus
    4.
    发明申请
    Adaptive time and/or frequency-based encoding mode determination apparatus and method of determining encoding mode of the apparatus 有权
    自适应时间和/或基于频率的编码模式确定装置和确定装置的编码模式的方法

    公开(公告)号：US20070174051A1

    公开(公告)日：2007-07-26

    申请号：US11524274

    申请日：2006-09-21

    申请人： Eun Mi Oh ,  Ki Hyun Choo ,  Jung-Hoe Kim ,  Chang Yong Son

    发明人： Eun Mi Oh ,  Ki Hyun Choo ,  Jung-Hoe Kim ,  Chang Yong Son

    IPC分类号： G10L19/14

    CPC分类号： G10L19/0208 ,  G10L19/22

    摘要： An adaptive time/frequency-based encoding mode determination apparatus including a time domain feature extraction unit to generate a time domain feature by analysis of a time domain signal of an input audio signal, a frequency domain feature extraction unit to generate a frequency domain feature corresponding to each frequency band generated by division of a frequency domain corresponding to a frame of the input audio signal into a plurality of frequency domains, by analysis of a frequency domain signal of the input audio signal, and a mode determination unit to determine any one of a time-based encoding mode and a frequency-based encoding mode, with respect to the each frequency band, by use of the time domain feature and the frequency domain feature.

    摘要翻译： 一种自适应时间/频率编码模式确定装置，包括：时域特征提取单元，用于通过分析输入音频信号的时域信号来产生时域特征;频域特征提取单元，用于产生相应的频域特征; 通过对输入音频信号的频域信号的分析和模式确定单元来确定通过将与输入音频信号的帧相对应的频域划分成多个频域而产生的每个频带，以确定任何一个 基于时间的编码模式和基于频率的编码模式，通过使用时域特征和频域特征，相对于每个频带。

    Method and apparatus for encoding/decoding speech signal
    10.
    发明授权
    Method and apparatus for encoding/decoding speech signal 有权
    用于对语音信号进行编码/解码的方法和装置

    公开(公告)号：US08914280B2

    公开(公告)日：2014-12-16

    申请号：US12458961

    申请日：2009-07-28

    申请人： Ho Sang Sung ,  Eun Mi Oh

    发明人： Ho Sang Sung ,  Eun Mi Oh

    IPC分类号： G10L19/00

    CPC分类号： G10L19/22 ,  G10L19/06 ,  G10L19/09 ,  G10L19/12

    摘要： An apparatus and method for encoding/decoding a speech signal which determines a variable bit rate based on reserved bits obtained from a target bit rate, is provided. The variable bit rate is determined based on a source feature of the speech signal and the reserved bits is obtained based on the target bit rate. The apparatus for encoding the speech signal may include a linear predictive (LP) analysis unit/quantization unit to determine an immittance spectral frequencies (ISF) index, a closed loop pitch search unit, a fixed codebook search unit, a gain vector quantization (VQ) unit to determine a gain vector quantization (VQ) index, and a bit rate control unit to control at least two indexes of the ISF index, the pitch index, the code index, and the gain VQ index to be encoded to be variable bit rates based on a source feature of a speech signal and the reserved bits.

    摘要翻译： 提供了一种用于对基于从目标比特率获得的保留比特来确定可变比特率的语音信号进行编码/解码的装置和方法。 基于语音信号的源特征确定可变比特率，并且基于目标比特率获得保留比特。 用于编码语音信号的装置可以包括线性预测（LP）分析单元/量化单元，用于确定导频谱频率（ISF）索引，闭环音调搜索单元，固定码本搜索单元，增益矢量量化（VQ ）单元以确定增益矢量量化（VQ）索引，以及比特率控制单元，用于控制要被编码为可变位的ISF索引，音高指数，代码索引和增益VQ索引的至少两个索引 基于语音信号的源特征和保留位的速率。