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1. 发明授权

US08595000B2 Method and apparatus to search fixed codebook and method and apparatus to encode/decode a speech signal using the method and apparatus to search fixed codebook 失效
标题翻译：使用该方法和装置搜索固定码本的方法和装置，用于搜索固定码本和方法和装置来对语音信号进行编码/解码
公开(公告)号：US08595000B2
公开(公告)日：2013-11-26
申请号：US11709255
申请日：2007-02-22
申请人： Kangeun Lee , Eunmi Oh , Hosang Sung , Changyong Son , Kihyun Choo , Junghoe Kim
发明人： Kangeun Lee , Eunmi Oh , Hosang Sung , Changyong Son , Kihyun Choo , Junghoe Kim
IPC分类号： G10L19/00 , G10L19/12 , G10L21/00
CPC分类号： G10L19/12 , G10L19/24 , G10L2019/0013
摘要： A method and an apparatus to encode and decode a speech signal using a code excited linear prediction (CELP) algorithm. In order to reduce a bit rate without degrading performance in an enhancement layer based on CELP, each of a fixed codebook of a core layer and a fixed codebook of the enhancement layer is divided into a plurality of spaces. The spaces of the fixed codebook of the enhancement layer excludes a space corresponding to a least distorted space determined from among the spaces of the fixed codebook of the core layer are searched.
摘要翻译：一种使用码激励线性预测（CELP）算法对语音信号进行编码和解码的方法和装置。为了在基于CELP的增强层中降低比特率而不降低性能的情况下，核心层的固定码本和增强层的固定码本中的每一个被分成多个空格。增强层的固定码本的空间不包括与核心层的固定码本的空格中确定的最小失真空间相对应的空间。

2. 发明申请

US20070276655A1 Method and apparatus to search fixed codebook and method and apparatus to encode/decode a speech signal using the method and apparatus to search fixed codebook 失效
标题翻译：使用该方法和装置搜索固定码本的方法和装置，用于搜索固定码本和方法和装置来对语音信号进行编码/解码
公开(公告)号：US20070276655A1
公开(公告)日：2007-11-29
申请号：US11709255
申请日：2007-02-22
申请人： Kangeun Lee , Eunmi Oh , Hosang Sung , Changyong Son , Kihyun Choo , Junghoe Kim
发明人： Kangeun Lee , Eunmi Oh , Hosang Sung , Changyong Son , Kihyun Choo , Junghoe Kim
IPC分类号： G06F15/00 , G06F17/28 , G11B11/00
CPC分类号： G10L19/12 , G10L19/24 , G10L2019/0013
摘要： A method and an apparatus to encode and decode a speech signal using a code excited linear prediction (CELP) algorithm. In order to reduce a bit rate without degrading performance in an enhancement layer based on CELP, each of a fixed codebook of a core layer and a fixed codebook of the enhancement layer is divided into a plurality of spaces. The spaces of the fixed codebook of the enhancement layer excludes a space corresponding to a least distorted space determined from among the spaces of the fixed codebook of the core layer are searched.
摘要翻译：一种使用码激励线性预测（CELP）算法对语音信号进行编码和解码的方法和装置。为了在基于CELP的增强层中降低比特率而不降低性能的情况下，核心层的固定码本和增强层的固定码本中的每一个被分成多个空格。增强层的固定码本的空间不包括与核心层的固定码本的空格中确定的最小失真空间相对应的空间。

3. 发明授权

US09094662B2 Encoder and decoder to encode signal into a scalable codec and to decode scalable codec, and encoding and decoding methods of encoding signal into scalable codec and decoding the scalable codec 有权
标题翻译：编码器和解码器将信号编码成可扩展编解码器并解码可扩展编解码器，并将编码信号的编码和解码方法转换为可扩展编解码器并对可扩展编解码器进行解码
公开(公告)号：US09094662B2
公开(公告)日：2015-07-28
申请号：US11709254
申请日：2007-02-22
申请人： Hosang Sung , Eunmi Oh , Junghoe Kim , Kangeun Lee
发明人： Hosang Sung , Eunmi Oh , Junghoe Kim , Kangeun Lee
IPC分类号： G10L19/02 , H04N19/164 , G10L19/24 , H04N21/2343 , H04N21/24 , H04N21/2662 , H04N21/6437 , H04N19/30 , H04N19/115 , H04N19/187
CPC分类号： G10L19/12 , G10L19/24 , H04N19/115 , H04N19/164 , H04N19/187 , H04N19/30 , H04N21/234327 , H04N21/2402 , H04N21/2662 , H04N21/6437
摘要： An encoder and decoder to encode one or more input signals into a scalable codec and to decode the scalable codec, and encoding and decoding methods using a bitstream with a layered structure in the scalable codec change a top coding bit rate to encode the input signals according to a network status, and the bitstream is decoded by analyzing the top coding bit rate included in the bitstream.
摘要翻译：编码器和解码器将一个或多个输入信号编码成可扩展编解码器并对可伸缩编解码器进行解码，以及使用具有可分级编解码器中的分层结构的比特流进行编码和解码方法，改变顶编码比特率以对输入信号进行编码通过分析比特流中包括的顶部编码比特率来解码比特流。

4. 发明申请

US20070291835A1 Encoder and decoder to encode signal into a scable codec and to decode scalable codec, and encoding and decoding methods of encoding signal into scable codec and decoding the scalable codec 有权
标题翻译：编码器和解码器将信号编码成可编解码器并解码可扩展编解码器，并将编码信号的编码和解码方法转换成可编解码器并解码可扩展编解码器
公开(公告)号：US20070291835A1
公开(公告)日：2007-12-20
申请号：US11709254
申请日：2007-02-22
申请人： Hosang Sung , Eunmi Oh , Junghoe Kim , Kangeun Lee
发明人： Hosang Sung , Eunmi Oh , Junghoe Kim , Kangeun Lee
IPC分类号： H04B1/66 , G11B11/00
CPC分类号： G10L19/12 , G10L19/24 , H04N19/115 , H04N19/164 , H04N19/187 , H04N19/30 , H04N21/234327 , H04N21/2402 , H04N21/2662 , H04N21/6437
摘要： An encoder and decoder to encode one or more input signals into a scalable codec and to decode the scalable codec, and encoding and decoding methods using a bitstream with a layered structure in the scalable codec change a top coding bit rate to encode the input signals according to a network status, and the bitstream is decoded by analyzing the top coding bit rate included in the bitstream.
摘要翻译：编码器和解码器将一个或多个输入信号编码成可扩展编解码器并对可伸缩编解码器进行解码，以及使用具有可分级编解码器中的分层结构的比特流进行编码和解码方法，改变顶编码比特率以对输入信号进行编码通过分析比特流中包括的顶部编码比特率来解码比特流。

5. 发明授权

US08473284B2 Apparatus and method of encoding/decoding voice for selecting quantization/dequantization using characteristics of synthesized voice 失效
标题翻译：使用合成语音的特征来选择量化/去量化的语音编码/解码装置和方法
公开(公告)号：US08473284B2
公开(公告)日：2013-06-25
申请号：US11097319
申请日：2005-04-04
申请人： Kangeun Lee , Hosang Sung , Kihyun Choo
发明人： Kangeun Lee , Hosang Sung , Kihyun Choo
IPC分类号： G10L19/12
CPC分类号： G10L19/07
摘要： A voice encoding/decoding method and apparatus. A voice encoder includes: a quantization selection unit generating a quantization selection signal; and a quantization unit extracting a linear prediction coding (LPC) coefficient from an input signal, converting the extracted LPC coefficient into a line spectral frequency (LSF), quantizing the LSF with a first LSF quantization unit or a second LSF quantization unit based on the quantization selection signal, and converting the quantized LSF into a quantized LPC coefficient. The quantization selection signal selects the first LSF quantization unit or second LSF quantization unit based on characteristics of a synthesized voice signal in previous frames of the input signal.
摘要翻译：语音编码/解码方法和装置。语音编码器包括：量化选择单元，生成量化选择信号; 以及量化单元，从输入信号提取线性预测编码（LPC）系数，将所提取的LPC系数转换为线谱频率（LSF），基于所述线频谱频率（LSF）对第一LSF量化单元或第二LSF量化单元量化LSF 量化选择信号，并将量化的LSF转换成量化的LPC系数。量化选择信号基于输入信号的先前帧中的合成语音信号的特性来选择第一LSF量化单元或第二LSF量化单元。

6. 发明申请

US20060074643A1 Apparatus and method of encoding/decoding voice for selecting quantization/dequantization using characteristics of synthesized voice 失效
标题翻译：使用合成语音的特征来选择量化/去量化的语音编码/解码装置和方法
公开(公告)号：US20060074643A1
公开(公告)日：2006-04-06
申请号：US11097319
申请日：2005-04-04
申请人： Kangeun Lee , Hosang Sung , Kihyun Choo
发明人： Kangeun Lee , Hosang Sung , Kihyun Choo
IPC分类号： G10L19/12
CPC分类号： G10L19/07
摘要： A voice encoding/decoding method and apparatus. A voice encoder includes: a quantization selection unit generating a quantization selection signal; and a quantization unit extracting a linear prediction coding (LPC) coefficient from an input signal, converting the extracted LPC coefficient into a line spectral frequency (LSF), quantizing the LSF with a first LSF quantization unit or a second LSF quantization unit based on the quantization selection signal, and converting the quantized LSF into a quantized LPC coefficient. The the quantization selection signal selects the first LSF quantization unit or second LSF quantization unit based on characteristics of a synthesized voice signal in previous frames of the input signal.
摘要翻译：语音编码/解码方法和装置。语音编码器包括：量化选择单元，生成量化选择信号; 以及量化单元，从输入信号提取线性预测编码（LPC）系数，将所提取的LPC系数转换为线谱频率（LSF），基于所述线频谱频率（LSF）对第一LSF量化单元或第二LSF量化单元量化LSF 量化选择信号，并将量化的LSF转换成量化的LPC系数。量化选择信号基于输入信号的先前帧中的合成语音信号的特性来选择第一LSF量化单元或第二LSF量化单元。

7. 发明申请

US20060149538A1 High-band speech coding apparatus and high-band speech decoding apparatus in wide-band speech coding/decoding system and high-band speech coding and decoding method performed by the apparatuses 失效
标题翻译：宽带语音编码装置和宽带语音编码/解码系统中的高频带语音解码装置以及由该装置执行的高频带语音编码和解码方法
公开(公告)号：US20060149538A1
公开(公告)日：2006-07-06
申请号：US11285183
申请日：2005-11-23
申请人： Kangeun Lee , Changyong Son , Insung Lee , Jaehyun Shin , Jonghun Kim , Kyuhyuk Jung , Youngwook Ahn
发明人： Kangeun Lee , Changyong Son , Insung Lee , Jaehyun Shin , Jonghun Kim , Kyuhyuk Jung , Youngwook Ahn
IPC分类号： G10L19/10
CPC分类号： G10L21/038 , G10L19/0204 , G10L19/12
摘要： A high-band speech encoding apparatus and a high-band speech decoding apparatus that can reproduce high quality sound even at a low bitrate when wideband speech encoding and decoding using a bandwidth extension function, and a high-band speech encoding and decoding method performed by the apparatuses. The high-band speech encoding apparatus includes: a first encoding unit encoding a high-band speech signal based on a structure in which a harmonic structure and a stochastic structure are combined, if the high-band speech signal has a harmonic component; and a second encoding unit encoding a high-band speech signal based on a stochastic structure if the high-band speech signal has no harmonic components. The high-band speech decoding apparatus includes: a first decoding unit decoding a high-band speech signal based on a combination of a harmonic structure and a stochastic structure using received first decoding information; a second decoding unit decoding the high-band speech signal based on a stochastic structure using received second decoding information; and a switch outputting one of the decoded high-band speech signals received from the first and second decoding units according to received mode selection information.
摘要翻译：一种高带语音编码装置和高频带语音解码装置，即使在使用带宽扩展功能进行宽带语音编码和解码时也能以低比特率再现高品质声音，以及高频带语音编码和解码方法，由设备。高频语音编码装置包括：如果高频带语音信号具有谐波分量，则基于组合了谐波结构和随机结构的结构对高频语音信号进行编码的第一编码单元; 以及第二编码单元，如果高频带语音信号没有谐波分量，则基于随机结构对高频带语音信号进行编码。高频带语音解码装置包括：第一解码单元，使用接收到的第一解码信息，基于谐波结构和随机结构的组合对高频带语音信号进行解码; 第二解码单元，使用接收到的第二解码信息，基于随机结构解码所述高频带语音信号; 以及根据接收到的模式选择信息，输出从第一和第二解码单元接收的解码的高频带语音信号之一的开关。

8. 发明申请

US20120232888A1 APPARATUS AND METHOD FOR CONCEALING FRAME ERASURE AND VOICE DECODING APPARATUS AND METHOD USING THE SAME 有权
标题翻译：用于保护框架擦除和声音解码装置的装置和方法及其使用方法
公开(公告)号：US20120232888A1
公开(公告)日：2012-09-13
申请号：US13477461
申请日：2012-05-22
申请人： Hosang Sung , Kangeun Lee , Seungho Choi
发明人： Hosang Sung , Kangeun Lee , Seungho Choi
IPC分类号： G10L19/04
CPC分类号： G10L19/0017 , G10L19/005 , G10L19/06 , G10L19/07 , G10L19/083 , G10L19/12 , G10L2019/0002 , G10L2019/0016
摘要： An apparatus and method for concealing frame erasure and a voice decoding apparatus and method using the same. The frame erasure concealment apparatus includes: a parameter extraction unit determining whether there is an erased frame in a voice packet, and extracting an excitement signal parameter and a line spectrum pair parameter of a previous good frame; and an erasure frame concealment unit, if there is an erased frame, restoring the excitement signal and line spectrum pair parameter of the erased frame by using a regression analysis from the excitement signal and line spectrum pair parameter of the previous good frame. According to the method and apparatus, by predicting and restoring the parameter of the erased frame through the regression analysis, the quality of the restored voice signal can be enhanced and the algorithm can be simplified.
摘要翻译：一种用于隐藏帧擦除的装置和方法，以及使用该帧擦除的语音解码装置和方法。帧擦除隐藏装置包括：参数提取单元，确定语音分组中是否存在被擦除的帧，以及提取先前好帧的兴奋信号参数和线谱对参数; 以及擦除帧隐藏单元，如果存在擦除帧，则通过使用来自先前好帧的兴奋信号和线谱对参数的回归分析来恢复被擦除帧的兴奋信号和线谱对参数。根据该方法和装置，通过回归分析预测和恢复被擦除的帧的参数，可以提高恢复的语音信号的质量，并且可以简化算法。

9. 发明申请

US20070033023A1 Scalable speech coding/decoding apparatus, method, and medium having mixed structure 有权
标题翻译：可扩展语音编码/解码装置，方法和具有混合结构的介质
公开(公告)号：US20070033023A1
公开(公告)日：2007-02-08
申请号：US11490139
申请日：2006-07-21
申请人： Hosang Sung , Sangwook Kim , Rakesh Taori , Kangeun Lee
发明人： Hosang Sung , Sangwook Kim , Rakesh Taori , Kangeun Lee
IPC分类号： G10L19/02
CPC分类号： G10L19/24 , G10L19/0212 , G10L25/18
摘要： Provided are a scalable wide-band speech coding/decoding apparatus, method, and medium. An input wide-band speech input signal is first divided into a low-band signal and a high-band signal. The divided low-band signal is then coded using a code excited linear prediction (CELP) method. The divided high-band signal is coded using a harmonic method. A signal representing a difference between a synthetic signal obtained from the low-band and the high band, and a signal input to the low-band and the high-band is then coded using a modified discrete cosine transform (MDCT) method. The coded signal is then multiplexed. The multiplexed signal is then output. Accordingly, high quality speech can be achieved for all layers.
摘要翻译：提供了一种可扩展的宽带语音编码/解码装置，方法和媒体。输入宽带语音输入信号首先被分成低频带信号和高频带信号。然后使用码激励线性预测（CELP）方法对分频的低频带信号进行编码。分频高频信号采用谐波法编码。然后，使用修正的离散余弦变换（MDCT）方法对表示从低频带和高频带获得的合成信号之间的差异以及输入到低频带和高频带的信号进行编码的信号。然后对编码信号进行多路复用。然后输出复用的信号。因此，可以实现对所有层的高质量语音。

10. 发明授权

US08498861B2 Apparatus and method for concealing frame erasure and voice decoding apparatus and method using the same 有权
公开(公告)号：US08498861B2
公开(公告)日：2013-07-30
申请号：US13477461
申请日：2012-05-22
申请人： Hosang Sung , Kangeun Lee , Seungho Choi
发明人： Hosang Sung , Kangeun Lee , Seungho Choi
IPC分类号： G10L11/06
CPC分类号： G10L19/0017 , G10L19/005 , G10L19/06 , G10L19/07 , G10L19/083 , G10L19/12 , G10L2019/0002 , G10L2019/0016
摘要： An apparatus and method for concealing frame erasure and a voice decoding apparatus and method using the same. The frame erasure concealment apparatus includes: a parameter extraction unit determining whether there is an erased frame in a voice packet, and extracting an excitement signal parameter and a line spectrum pair parameter of a previous good frame; and an erasure frame concealment unit, if there is an erased frame, restoring the excitement signal and line spectrum pair parameter of the erased frame by using a regression analysis from the excitement signal and line spectrum pair parameter of the previous good frame. According to the method and apparatus, by predicting and restoring the parameter of the erased frame through the regression analysis, the quality of the restored voice signal can be enhanced and the algorithm can be simplified.

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