专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US07302385B2 Speech restoration system and method for concealing packet losses 失效
标题翻译：用于隐藏分组丢失的语音恢复系统和方法
公开(公告)号：US07302385B2
公开(公告)日：2007-11-27
申请号：US10615268
申请日：2003-07-07
申请人： Ho Sang Sung , Dae Hwan Hwang , Moon Keun Lee , Ki Seung Lee , Young Cheol Park , Dae Hee Youn
发明人： Ho Sang Sung , Dae Hwan Hwang , Moon Keun Lee , Ki Seung Lee , Young Cheol Park , Dae Hee Youn
IPC分类号： G10L19/00
CPC分类号： G10L19/005 , G10L19/04 , G10L25/93
摘要： Provided are a speech restoration system and method for concealing packet losses. The system includes a demultiplexer that demultiplexes an input bit stream and divides the input bit stream into several packets; a packet loss concealing unit that produces and outputs a linear spectrum pair (LSP) coefficient representing the vocal tract of voice and an excitation signal corresponding to a lost frame, when a packet loss occurs; and a speech restoring unit that synthesizes voice using the packets input from the demultiplexer, outputs the result as restored voice, and synthesizes voice corresponding to a lost packet using the LSP coefficient and the excitation signal input from the packet loss concealing unit and outputs the result as restored voice when the lost packet is detected, wherein the packet loss concealing unit repeats linear prediction coefficients (LPCs) of a last-received valid frame, produces a first excitation signal for the lost frame using a time scale modification (TSM) method, when the lost frame is voiceless, and produces a second excitation signal by re-estimating a gain parameter based on the first excitation signal, when the lost frame is voiced.
摘要翻译：提供了一种用于隐藏分组丢失的语音恢复系统和方法。该系统包括解复用器，其对输入比特流进行解复用并将输入比特流分成若干分组; 分组丢失隐藏单元，当发生分组丢失时，产生并输出表示语音的声道的线性频谱对（LSP）系数和对应于丢失帧的激励信号; 以及语音恢复单元，其使用从解复用器输入的分组合成语音，将结果输出为恢复的语音，并且使用从分组丢失隐藏单元输入的LSP系数和激励信号来合成与丢失分组对应的语音，并输出结果作为在检测到丢失分组时的恢复语音，其中分组丢失隐藏单元重复最后接收的有效帧的线性预测系数（LPC），使用时间缩放修改（TSM）方法产生丢失帧的第一激励信号，当丢失的帧是无声的，并且当丢失的帧被发音时，通过基于第一激励信号重新估计增益参数来产生第二激励信号。

2. 发明申请

US20100145688A1 Method and apparatus for encoding/decoding speech signal using coding mode 有权
标题翻译：使用编码模式对语音信号进行编码/解码的方法和装置
公开(公告)号：US20100145688A1
公开(公告)日：2010-06-10
申请号：US12591949
申请日：2009-12-04
申请人： Ho Sang Sung , Ki Hyun Choo , Jung Hoe Kim , Eun Mi Oh
发明人： Ho Sang Sung , Ki Hyun Choo , Jung Hoe Kim , Eun Mi Oh
IPC分类号： G10L19/04 , G10L11/06 , G10L21/00 , G10L19/12
CPC分类号： G10L19/12 , G10L19/20 , G10L25/93
摘要： An apparatus and a method to encode and decode a speech signal using an encoding mode are provided. An encoding apparatus may select an encoding mode of a frame included in an input speech signal, and encode a frame having an unvoiced mode for an unvoiced speech as the selected encoding mode.
摘要翻译：提供了一种使用编码模式对语音信号进行编码和解码的装置和方法。编码装置可以选择包括在输入语音信号中的帧的编码模式，并且将具有用于无声语音的无声模式的帧编码为所选择的编码模式。

3. 发明授权

US08914280B2 Method and apparatus for encoding/decoding speech signal 有权
标题翻译：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。

4. 发明申请

US20120095756A1 Apparatus and method for determining weighting function having low complexity for linear predictive coding (LPC) coefficients quantization 有权
标题翻译：用于确定对于线性预测编码（LPC）系数量化具有低复杂度的加权函数的装置和方法
公开(公告)号：US20120095756A1
公开(公告)日：2012-04-19
申请号：US13067366
申请日：2011-05-26
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： G10L19/06 , G10L19/07
摘要： Proposed is a method and apparatus for determining a weighting function for quantizing a linear predictive coding (LPC) coefficient and having a low complexity. The weighting function determination apparatus may convert an LPC coefficient of a mid-subframe of an input signal to one of a immitance spectral frequency (ISF) coefficient and a line spectral frequency (LSF) coefficient, and may determine a weighting function associated with an importance of the ISF coefficient or the LSF coefficient based on the converted ISF coefficient or LSF coefficient.
摘要翻译：提出了一种用于确定用于量化线性预测编码（LPC）系数并具有低复杂度的加权函数的方法和装置。加权函数确定装置可以将输入信号的子帧的LPC系数转换成子频谱频率（ISF）系数和线谱频率（LSF）系数之一，并且可以确定与重要性相关联的加权函数基于转换的ISF系数或LSF系数的ISF系数或LSF系数。

5. 发明申请

US20100114566A1 Method and apparatus for encoding/decoding speech signal 有权
标题翻译：用于对语音信号进行编码/解码的方法和装置
公开(公告)号：US20100114566A1
公开(公告)日：2010-05-06
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： G10L19/04 , G10L19/14
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。

6. 发明申请

US20070233473A1 MULTI-PATH TRELLIS CODED QUANTIZATION METHOD AND MULTI-PATH CODED QUANTIZER USING THE SAME 失效
标题翻译：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。

7. 发明授权

US09311926B2 Apparatus and method for determining weighting function having for associating linear predictive coding (LPC) coefficients with line spectral frequency coefficients and immittance spectral frequency coefficients 有权
标题翻译：用于确定用于将线性预测编码（LPC）系数与线谱频率系数和导纳谱频率系数相关联的加权函数的装置和方法
公开(公告)号：US09311926B2
公开(公告)日：2016-04-12
申请号：US13067366
申请日：2011-05-26
申请人： Ho Sang Sung , Eun Mi Oh
发明人： Ho Sang Sung , Eun Mi Oh
IPC分类号： G10L19/07 , G10L19/04 , G10L25/12
CPC分类号： G10L19/06 , G10L19/07
摘要： Proposed is a method and apparatus for determining a weighting function for quantizing a linear predictive coding (LPC) coefficient and having a low complexity. The weighting function determination apparatus may convert an LPC coefficient of a mid-subframe of an input signal to one of a immitance spectral frequency (ISF) coefficient and a line spectral frequency (LSF) coefficient, and may determine a weighting function associated with an importance of the ISF coefficient or the LSF coefficient based on the converted ISF coefficient or LSF coefficient.
摘要翻译：提出了一种用于确定用于量化线性预测编码（LPC）系数并具有低复杂度的加权函数的方法和装置。加权函数确定装置可以将输入信号的子帧的LPC系数转换成子频谱频率（ISF）系数和线谱频率（LSF）系数之一，并且可以确定与重要性相关联的加权函数基于转换的ISF系数或LSF系数的ISF系数或LSF系数。

8. 发明授权

US08918324B2 Method for decoding an audio signal based on coding mode and context flag 有权
标题翻译：基于编码模式和上下文标志对音频信号进行解码的方法
公开(公告)号：US08918324B2
公开(公告)日：2014-12-23
申请号：US13254119
申请日：2010-01-27
申请人： Ki Hyun Choo , Jung-Hoe Kim , Eun Mi Oh , Ho Sang Sung
发明人： Ki Hyun Choo , Jung-Hoe Kim , Eun Mi Oh , Ho Sang Sung
IPC分类号： G10L19/00 , G10L21/00 , G10L19/02 , G10L25/90 , G10L25/93 , G10L19/12 , G10L21/04 , G10L19/20
CPC分类号： G10L19/20 , G10L19/12
摘要： A method for coding and decoding an audio signal or speech signal and an apparatus adopting the method are provided.
摘要翻译：提供了一种对音频信号或语音信号进行编码和解码的方法以及采用该方法的装置。

9. 发明申请

US20120065965A1 Apparatus and method for encoding and decoding signal for high frequency bandwidth extension 有权
标题翻译：用于对高频带宽扩展的信号进行编码和解码的装置和方法
公开(公告)号：US20120065965A1
公开(公告)日：2012-03-15
申请号：US13137779
申请日：2011-09-12
申请人： Ki Hyun Choo , Eun Mi Oh , Ho Sang Sung
发明人： Ki Hyun Choo , Eun Mi Oh , Ho Sang Sung
IPC分类号： G10L19/02 , G10L19/14
CPC分类号： G10L19/12 , G10L19/00 , G10L19/038 , G10L19/24 , G10L21/038
摘要： An apparatus and method for encoding and decoding a signal for high frequency bandwidth extension are provided. An encoding apparatus may down-sample a time domain input signal, may core-encode the down-sampled time domain input signal, may transform the core-encoded time domain input signal to a frequency domain input signal, and may perform bandwidth extension encoding using a basic signal of the frequency domain input signal.
摘要翻译：提供了一种用于编码和解码用于高频带宽扩展的信号的装置和方法。编码装置可以对时域输入信号进行采样，可以对下采样的时域输入信号进行核编码，可以将核心编码的时域输入信号变换为频域输入信号，并且可以使用频域输入信号的基本信号。

10. 发明申请

US20100010807A1 METHOD AND APPARATUS TO ENCODE AND DECODE AN AUDIO/SPEECH SIGNAL 有权
标题翻译：编码和解码音频/语音信号的方法和装置
公开(公告)号：US20100010807A1
公开(公告)日：2010-01-14
申请号：US12502454
申请日：2009-07-14
申请人： Eun Mi Oh , Jung Hoe Kim , Ki Hyun Choo , Ho Sang Sung , Mi Young Kim
发明人： Eun Mi Oh , Jung Hoe Kim , Ki Hyun Choo , Ho Sang Sung , Mi Young Kim
IPC分类号： G10L19/00
CPC分类号： G10L19/03 , G10L19/008 , G10L19/0204 , G10L19/0212 , G10L19/04 , G10L19/12 , G10L19/167 , G10L19/20
摘要： A method and apparatus to encode and decode an audio/speech signal is provided. An inputted audio signal or speech signal may be transformed into at least one of a high frequency resolution signal and a high temporal resolution signal. The signal may be encoded by determining an appropriate resolution, the encoded signal may be decoded, and thus the audio signal, the speech signal, and a mixed signal of the audio signal and the speech signal may be processed.
摘要翻译：提供了一种对音频/语音信号进行编码和解码的方法和装置。输入的音频信号或语音信号可以被变换成高频分辨率信号和高时间分辨率信号中的至少一个。可以通过确定适当的分辨率来对信号进行编码，编码的信号可以被解码，并且因此可以处理音频信号，语音信号以及音频信号和语音信号的混合信号。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式