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    Methods and Apparatus to Quantize and Dequantize Linear Predictive Coding Coefficient
    1.
    发明申请
    Methods and Apparatus to Quantize and Dequantize Linear Predictive Coding Coefficient 有权
    量化和去量化线性预测编码系数的方法和装置

    公开(公告)号：US20080183465A1

    公开(公告)日：2008-07-31

    申请号：US11911775

    申请日：2006-11-15

    申请人： Chang-Yong Son ,  Eun-Mi Oh ,  Ho-Sang Sung ,  Kang-Eun Lee ,  Ki-Hyun Choo ,  Jung-Hoe Kim

    发明人： Chang-Yong Son ,  Eun-Mi Oh ,  Ho-Sang Sung ,  Kang-Eun Lee ,  Ki-Hyun Choo ,  Jung-Hoe Kim

    IPC分类号： G10L19/04

    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。

    Coefficient splitting structure for vector quantization bit allocation and dequantization
    2.
    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

    申请人： Chang-Yong Son ,  Eun-Mi Oh ,  Ho-Sang Sung ,  Kang-Eun Lee ,  Ki-Hyun Choo ,  Jung-Hoe Kim

    发明人： Chang-Yong Son ,  Eun-Mi Oh ,  Ho-Sang Sung ,  Kang-Eun Lee ,  Ki-Hyun Choo ,  Jung-Hoe Kim

    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。

    APPARATUS AND METHOD OF AUDIO ENCODING AND DECODING BASED ON VARIABLE BIT RATE
    3.
    发明申请
    APPARATUS AND METHOD OF AUDIO ENCODING AND DECODING BASED ON VARIABLE BIT RATE 审中-公开
    基于可变比特率的音频编码和解码的装置和方法

    公开(公告)号：US20100268542A1

    公开(公告)日：2010-10-21

    申请号：US12762630

    申请日：2010-04-19

    申请人： Mi-Young Kim ,  Ho-Sang Sung ,  Eun-Mi Oh

    发明人： Mi-Young Kim ,  Ho-Sang Sung ,  Eun-Mi Oh

    IPC分类号： G10L19/04

    CPC分类号： G10L19/22

    摘要： An apparatus and method of audio encoding and decoding based on a Variable Bit Rate (VBR) is provided. The audio encoding and decoding apparatus and method may determine an optimum bit rate per superframe and per frame, determine an optimum encoding mode by applying an open-loop mode/closed-loop mode based on a characteristic of an audio signal, and perform indexing based on the optimum encoding mode.

    摘要翻译： 提供了一种基于可变比特率（VBR）的音频编码和解码的装置和方法。 音频编码和解码装置和方法可以确定每个超帧和每帧的最佳比特率，通过基于音频信号的特性应用开环模式/闭环模式来确定最佳编码模式，并基于 在最佳编码模式下。

    Method and apparatus for transmitting wideband speech signals
    4.
    发明申请
    Method and apparatus for transmitting wideband speech signals 失效

    公开(公告)号：US20120029914A1

    公开(公告)日：2012-02-02

    申请号：US13137256

    申请日：2011-08-01

    申请人： Ho-Sang Sung ,  Dae-hwan Hwang

    发明人： Ho-Sang Sung ,  Dae-hwan Hwang

    IPC分类号： G10L21/02

    CPC分类号： G10L19/18 ,  G10L2021/02082

    摘要： A method and an apparatus for transmitting a speech signal are provided. A speech signal transmitter includes a quadrature mirror filter, a base sub-band encoder, an enhancement sub-band encoder, and a network connector. The quadrature mirror filter receives a speech signal, divides the speech signal into an enhancement band speech signal and a base band speech signal, and outputs the enhancement band speech signal and the base band speech signal. The base sub-band encoder receives and encodes the base band speech signal. The enhancement sub-band encoder receives and encodes the enhancement band speech signal. The network connector multiplexes the encoded enhancement band speech signal and the encoded base band speech signal based on the kinds of networks over which speech signals are transmitted, and transmits the multiplexed signals to the networks. A speech signal is multiplexed and transmitted by various methods based on the kinds of networks. Thus, the speech signal can be efficiently transmitted.

    Transmitter and receiver for speech coding and decoding by using additional bit allocation method
    6.
    发明申请
    Transmitter and receiver for speech coding and decoding by using additional bit allocation method 有权
    发射机和接收机通过使用附加比特分配方法进行语音编码和解码

    公开(公告)号：US20080162124A1

    公开(公告)日：2008-07-03

    申请号：US12071587

    申请日：2008-02-22

    申请人： Ho-Sang Sung ,  Dae-Hwan Hwang ,  Dae-Hee Youn ,  Hong-Goo Kang ,  Young-Cheol Park ,  Ki-Seung Lee ,  Sung-Kyo Jung ,  Kyung-Tae Kim

    发明人： Ho-Sang Sung ,  Dae-Hwan Hwang ,  Dae-Hee Youn ,  Hong-Goo Kang ,  Young-Cheol Park ,  Ki-Seung Lee ,  Sung-Kyo Jung ,  Kyung-Tae Kim

    IPC分类号： G10L19/00

    CPC分类号： G10L19/24 ,  G10L21/038

    摘要： The present invention relates to a transmitter and a receiver for speech coding and decoding by using an additional bit allocation method. The transmitter and the receiver according to the present invention realize a voice communication service of high quality by using additional bits permitted in system requirements while using a conventional speech coder as it is. In addition, the transmitter and the receiver according to the present invention have an advantage in that they enable insertion of additional quantization blocks while not changing the structure of the conventional standard speech coder, since they allocate additional bits by applying a multi-stage quantization procedure not in a speech signal domain but in a parameter domain.

    摘要翻译： 本发明涉及通过使用附加比特分配方法进行语音编码和解码的发射机和接收机。 根据本发明的发射机和接收机按照原来使用传统语音编码器，通过使用系统要求中允许的附加位来实现高质量的语音通信服务。 此外，根据本发明的发射机和接收机具有的优点在于，它们能够插入附加量化块，同时不改变常规标准语音编码器的结构，因为它们通过应用多级量化过程来分配附加比特 不在语音信号域，而是在参数域中。

    Transmitter and receiver for speech coding and decoding by using additional bit allocation method
    7.
    发明授权
    Transmitter and receiver for speech coding and decoding by using additional bit allocation method 有权
    发射机和接收机通过使用附加比特分配方法进行语音编码和解码

    公开(公告)号：US07860711B2

    公开(公告)日：2010-12-28

    申请号：US12071587

    申请日：2008-02-22

    申请人： Ho-Sang Sung ,  Dae-Hwan Hwang ,  Dae-Hee Youn ,  Hong-Goo Kang ,  Young-Cheol Park ,  Ki-Seung Lee ,  Sung-Kyo Jung ,  Kyung-Tae Kim

    发明人： Ho-Sang Sung ,  Dae-Hwan Hwang ,  Dae-Hee Youn ,  Hong-Goo Kang ,  Young-Cheol Park ,  Ki-Seung Lee ,  Sung-Kyo Jung ,  Kyung-Tae Kim

    IPC分类号： G10L19/00

    CPC分类号： G10L19/24 ,  G10L21/038

    摘要： The present invention relates to a transmitter and a receiver for speech coding and decoding by using an additional bit allocation method. The transmitter and the receiver according to the present invention realize a voice communication service of high quality by using additional bits permitted in system requirements while using a conventional speech coder as it is. In addition, the transmitter and the receiver according to the present invention have an advantage in that they enable insertion of additional quantization blocks while not changing the structure of the conventional standard speech coder, since they allocate additional bits by applying a multi-stage quantization procedure not in a speech signal domain but in a parameter domain.

    摘要翻译： 本发明涉及通过使用附加比特分配方法进行语音编码和解码的发射机和接收机。 根据本发明的发射机和接收机按照原来使用传统语音编码器，通过使用系统要求中允许的附加位来实现高质量的语音通信服务。 此外，根据本发明的发射机和接收机具有的优点在于，它们能够插入附加量化块，同时不改变常规标准语音编码器的结构，因为它们通过应用多级量化过程来分配附加比特 不在语音信号域，而是在参数域中。

    System and method for transmitting and receiving wideband speech signals
    8.
    发明授权
    System and method for transmitting and receiving wideband speech signals 失效
    用于发送和接收宽带语音信号的系统和方法

    公开(公告)号：US07649856B2

    公开(公告)日：2010-01-19

    申请号：US10740937

    申请日：2003-12-18

    申请人： Ho-Sang Sung ,  Dae-Hwan Hwang ,  Dae-Hee Youn ,  Hong-Goo Kang ,  Young-Cheol Park ,  Ki-Seung Lee ,  Sung-Kyo Jung ,  Kyung-Tae Kim

    发明人： Ho-Sang Sung ,  Dae-Hwan Hwang ,  Dae-Hee Youn ,  Hong-Goo Kang ,  Young-Cheol Park ,  Ki-Seung Lee ,  Sung-Kyo Jung ,  Kyung-Tae Kim

    IPC分类号： H04B3/20

    CPC分类号： H04L12/66

    摘要： The system for transmitting and receiving a wideband speech signal includes an A/D converter for receiving an analog speech signal to convert it into a digital speech signal, a transmitter analysis filter for receiving the digital speech signal and dividing it into a baseband signal and an enhancement residual band signal, a standard baseband encoder for accepting the baseband signal and coding it using an ITU-T encoder, an additional baseband encoder for reducing standard coding distortion in the baseband signal, an enhancement residual band encoder for coding a signal obtained by removing the coded baseband signal from the original digital speech signal, and an IP network interface for multiplexing the coded standard and additional baseband signals and enhancement residual band signal.

    摘要翻译： 用于发送和接收宽带语音信号的系统包括用于接收模拟语音信号以将其转换为数字语音信号的A / D转换器，用于接收数字语音信号并将其分成基带信号的发射机分析滤波器，以及 增强残留频带信号，用于接受基带信号并使用ITU-T编码器对其编码的标准基带编码器，用于降低基带信号中的标准编码失真的附加基带编码器，用于对通过去除 来自原始数字语音信号的编码基带信号和用于复用编码标准的IP网络接口和附加基带信号和增强剩余频带信号。

    Transmitter and receiver for speech coding and decoding by using additional bit allocation method
    9.
    发明授权
    Transmitter and receiver for speech coding and decoding by using additional bit allocation method 失效
    发射机和接收机通过使用附加比特分配方法进行语音编码和解码

    公开(公告)号：US08055499B2

    公开(公告)日：2011-11-08

    申请号：US12915656

    申请日：2010-10-29

    申请人： Ho-Sang Sung ,  Dae-Hwan Hwang ,  Dae-Hee Youn ,  Hong-Goo Kang ,  Young-Cheol Park ,  Ki-Seung Lee ,  Sung-Kyo Jung ,  Kyung-Tae Kim

    发明人： Ho-Sang Sung ,  Dae-Hwan Hwang ,  Dae-Hee Youn ,  Hong-Goo Kang ,  Young-Cheol Park ,  Ki-Seung Lee ,  Sung-Kyo Jung ,  Kyung-Tae Kim

    IPC分类号： G10L19/00

    CPC分类号： G10L19/24 ,  G10L21/038

    摘要： The present invention relates to a transmitter and a receiver for speech coding and decoding by using an additional bit allocation method. The transmitter and the receiver according to the present invention realize a voice communication service of high quality by using additional bits permitted in system requirements while using a conventional speech coder as it is. In addition, the transmitter and the receiver according to the present invention have an advantage in that they enable insertion of additional quantization blocks while not changing the structure of the conventional standard speech coder, since they allocate additional bits by applying a multi-stage quantization procedure not in a speech signal domain but in a parameter domain.

    摘要翻译： 本发明涉及通过使用附加位分配方法进行语音编码和解码的发射机和接收机。 根据本发明的发射机和接收机按照原来使用传统语音编码器，通过使用系统要求中允许的附加位来实现高质量的语音通信服务。 此外，根据本发明的发射机和接收机具有的优点在于，它们能够插入附加量化块，同时不改变常规标准语音编码器的结构，因为它们通过应用多级量化过程来分配附加比特 不在语音信号域，而是在参数域中。