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1. 发明申请

US20070258385A1 Apparatus and method for recovering voice packet 有权
标题翻译：语音包恢复装置及方法
公开(公告)号：US20070258385A1
公开(公告)日：2007-11-08
申请号：US11790368
申请日：2007-04-25
申请人： Jung-Woo Ku , Austin Kim , Ho-Chong Park , Jae-Bum Kim , Chul-Yong Ahn , Pavel Martynovich
发明人： Jung-Woo Ku , Austin Kim , Ho-Chong Park , Jae-Bum Kim , Chul-Yong Ahn , Pavel Martynovich
IPC分类号： H04L12/26
CPC分类号： H04L12/66
摘要： An apparatus and method for recovering lost voice packets are provided, in which a packet loss detector determines whether a received packet has been lost, packet information storage stores voice information of previous voice packets and voice information of the received voice packet, a packet error corrector measures the voice information of the received voice packet, stores the measured voice information in the packet information storage, corrects the voice information when necessary, and generates a corrected voice packet, if the received voice packet is normal, and a packet loss recoverer recovers the voice information of the received voice packet using the voice information of previous voice packets stored in the packet information storage and generates a recovered voice packet, if the received voice packet has been lost.
摘要翻译：提供了一种用于恢复丢失语音分组的装置和方法，其中分组丢失检测器确定接收的分组是否已经丢失，分组信息存储存储先前语音分组的语音信息和接收的语音分组的语音信息，分组误差校正器测量接收到的语音分组的语音信息，将测量的语音信息存储在分组信息存储器中，必要时校正语音信息，并且如果接收的语音分组正常，则生成校正的语音分组，并且分组丢失恢复器恢复使用存储在分组信息存储器中的先前语音分组的语音信息的接收到的语音分组的语音信息，并且如果接收到的语音分组已经丢失，则生成恢复的语音分组。

2. 发明授权

US08520536B2 Apparatus and method for recovering voice packet 有权
标题翻译：语音包恢复装置及方法
公开(公告)号：US08520536B2
公开(公告)日：2013-08-27
申请号：US11790368
申请日：2007-04-25
申请人： Jung-Woo Ku , Austin Kim , Ho-Chong Park , Jae-Bum Kim , Chul-Yong Ahn , Pavel Martynovich
发明人： Jung-Woo Ku , Austin Kim , Ho-Chong Park , Jae-Bum Kim , Chul-Yong Ahn , Pavel Martynovich
IPC分类号： H04L12/26
CPC分类号： H04L12/66
摘要： An apparatus and method for recovering lost voice packets are provided, in which a packet loss detector determines whether a received packet has been lost, packet information storage stores voice information of previous voice packets and voice information of the received voice packet, a packet error corrector measures the voice information of the received voice packet, stores the measured voice information in the packet information storage, corrects the voice information when necessary, and generates a corrected voice packet, if the received voice packet is normal, and a packet loss recoverer recovers the voice information of the received voice packet using the voice information of previous voice packets stored in the packet information storage and generates a recovered voice packet, if the received voice packet has been lost.
摘要翻译：提供了一种用于恢复丢失语音分组的装置和方法，其中分组丢失检测器确定接收的分组是否已经丢失，分组信息存储存储先前语音分组的语音信息和接收的语音分组的语音信息，分组误差校正器测量接收到的语音分组的语音信息，将测量的语音信息存储在分组信息存储器中，必要时校正语音信息，并且如果接收的语音分组正常，则生成校正的语音分组，并且分组丢失恢复器恢复使用存储在分组信息存储器中的先前语音分组的语音信息的接收到的语音分组的语音信息，并且如果接收到的语音分组已经丢失，则生成恢复的语音分组。

3. 发明授权

US08019603B2 Apparatus and method for enhancing speech intelligibility in a mobile terminal 有权
标题翻译：一种用于增强移动终端中语音清晰度的装置和方法
公开(公告)号：US08019603B2
公开(公告)日：2011-09-13
申请号：US12062034
申请日：2008-04-03
申请人： Pavel Martynovich , Austin Kim , Jae-Bum Kim , Chul-Yong Ahn
发明人： Pavel Martynovich , Austin Kim , Jae-Bum Kim , Chul-Yong Ahn
IPC分类号： G10L21/02
CPC分类号： G10L19/26 , G10L21/0364
摘要： An apparatus and a method for enhancing speech intelligibility in a mobile terminal. A complex spectrum calculator calculates complex spectra of one input frame of an input speech signal by Fourier transform, a speech level calculator calculates its instant levels, an average speech level calculator calculates an average speech level of the speech frame using the instant levels, if the input frame is a speech frame, a scaling factor calculator calculates scaling factors by comparing the average speech level with the instant levels, an HPF characteristic calculator calculates amplitude characteristics using the scaling factors, a HPF high-pass-filters the complex spectra using the amplitude characteristics, a synthesizer converts high-pass-filtered signals to time signals by inverse Fourier transform and synthesizes the time signals, and a combiner outputs an enhanced intelligibility speech signal by combining the synthesized time signal with the input frame.
摘要翻译：一种用于增强移动终端中的语音清晰度的装置和方法。复频谱计算器通过傅里叶变换计算输入语音信号的一个输入帧的复谱，语音电平计算器计算其即时电平，平均语音电平计算器使用即时电平计算语音帧的平均语音电平，如果输入帧是语音帧，缩放因子计算器通过将平均语音电平与即时电平进行比较来计算缩放因子，HPF特征计算器使用缩放因子计算幅度特性，HPF使用振幅来对复谱进行高通滤波特征，合成器通过逆傅里叶变换将高通滤波信号转换成时间信号，并合成时间信号，组合器通过将合成时间信号与输入帧组合而输出增强的可懂度语音信号。

4. 发明申请

US20070088546A1 Apparatus and method for transmitting audio signals 审中-公开
标题翻译：用于传输音频信号的装置和方法
公开(公告)号：US20070088546A1
公开(公告)日：2007-04-19
申请号：US11519219
申请日：2006-09-12
申请人： Geun-Bae Song , Jae-Bum Kim , Chul-Yong Ahn , Ho-Chong Park
发明人： Geun-Bae Song , Jae-Bum Kim , Chul-Yong Ahn , Ho-Chong Park
IPC分类号： G10L15/20
CPC分类号： G10L19/265
摘要： An apparatus and a method for transmitting audio signals in such a manner that audio signals transmitted and received in a mobile telephone network are preprocessed before being inputted to a voice encoder are provided. The audio signals are preprocessed by using an optimal filter gain based on error signals obtained when the audio signals are preprocessed and outputted by the voice encoder and the synthesizer. Therefore, the sound quality of the audio signals is hardly degraded by the voice encoder.
摘要翻译：提供一种用于以这样的方式发送音频信号的装置和方法，即在输入到语音编码器之前，在移动电话网络中发送和接收的音频信号被预处理。音频信号通过使用基于当音频信号被语音编码器和合成器预处理和输出时获得的误差信号使用最佳滤波器增益来预处理。因此，语音编码器几乎不会降低音频信号的声音质量。

5. 发明授权

US08223960B2 Apparatus and method for removing an echo signal in a signal transmission/reception apparatus of a communication system 有权
标题翻译：一种用于去除通信系统的信号发送/接收装置中的回波信号的装置和方法
公开(公告)号：US08223960B2
公开(公告)日：2012-07-17
申请号：US12328738
申请日：2008-12-04
申请人： Hwa-Sun You , Hee-Won Kang , Jae-Bum Kim , Jung-Woo Ku
发明人： Hwa-Sun You , Hee-Won Kang , Jae-Bum Kim , Jung-Woo Ku
IPC分类号： H04M9/08 , H04B7/14 , H04B1/44 , H04B3/20
CPC分类号： H04B3/23 , H04B7/15585
摘要： A method and apparatus for removing an echo signal in a signal transmission/reception apparatus of a communication system are provided. A signal transmission/reception apparatus determines an echo channel impulse response using a reception signal, generates an echo signal removing coefficient using the echo channel impulse response, removes an echo signal from the reception signal using the echo signal removing coefficient, and transmits a signal in which the echo signal is removed.
摘要翻译：提供一种用于消除通信系统的信号发送/接收装置中的回波信号的方法和装置。信号发送/接收装置使用接收信号确定回波信道脉冲响应，使用回波信道脉冲响应产生回波信号去除系数，使用回波信号去除系数从接收信号中去除回波信号，并将信号发送到回波信号被去除。

6. 发明授权

US08121654B2 Apparatus and method for removing an echo signal in a signal transmission/reception apparatus of a communication system 有权
标题翻译：一种用于去除通信系统的信号发送/接收装置中的回波信号的装置和方法
公开(公告)号：US08121654B2
公开(公告)日：2012-02-21
申请号：US12324506
申请日：2008-11-26
申请人： Hwa-Sun You , Jae-Bum Kim , Hee-Won Kang , Jung-Woo Ku
发明人： Hwa-Sun You , Jae-Bum Kim , Hee-Won Kang , Jung-Woo Ku
IPC分类号： H04B15/00
CPC分类号： H04B3/23 , H04B7/15585
摘要： A method and apparatus for removing an echo signal in a signal transmission/reception apparatus of a communication system is provided. A signal transmission/reception apparatus estimates an input channel response using a training sequence, generates a first signal by removing the input channel response from a first reception signal, detects an echo channel impulse response using the first signal, detects an echo signal removing coefficient using the echo channel impulse response, generates a second signal in which an echo signal is removed by applying the echo signal removing coefficient to a second reception signal, and removes the second signal from a third signal, wherein the first signal is received prior to receiving the second signal and the second signal is received prior to receiving the third signal.
摘要翻译：提供了一种用于消除通信系统的信号发送/接收装置中的回波信号的方法和装置。信号发送/接收装置使用训练序列估计输入信道响应，通过从第一接收信号中去除输入信道响应来产生第一信号，使用第一信号检测回波信道脉冲响应，使用回波信道脉冲响应产生通过将回波信号去除系数应用于第二接收信号而去除回波信号的第二信号，并从第三信号中去除第二信号，其中在接收第一信号之前接收第一信号第二信号，并且在接收第三信号之前接收第二信号。

7. 发明授权

US08050621B2 Method and apparatus for estimating/removing echo signal using channel coefficient predicting technique in multi-carrier system 有权
标题翻译：使用多载波系统中的信道系数预测技术来估计/去除回波信号的方法和装置
公开(公告)号：US08050621B2
公开(公告)日：2011-11-01
申请号：US12391878
申请日：2009-02-24
申请人： Jung-Woo Ku , Jae-Bum Kim , Hee-Won Kang , Hwa-Sun You
发明人： Jung-Woo Ku , Jae-Bum Kim , Hee-Won Kang , Hwa-Sun You
IPC分类号： H04Q7/20
CPC分类号： H04B7/15585
摘要： A method and an apparatus are provided for estimating and removing interference of a signal at a wireless repeater operating in a multi-carrier system. In the method, a current echo channel linear prediction coefficient, which represents a coefficient between a current train signal section and a previous train signal section, is estimated using a current echo channel coefficient estimated in the current train signal section and a previous echo channel coefficient generated in the previous train signal section. A next echo channel coefficient is estimated using the current echo channel coefficient, the previous echo channel coefficient, and the current echo channel linear prediction coefficient. An echo channel coefficient outside a train signal section is estimated using the current echo channel coefficient and the next echo channel coefficient.
摘要翻译：提供一种用于估计和去除在多载波系统中操作的无线中继器处的信号的干扰的方法和装置。在该方法中，使用在当前列车信号部分中估计的当前回波信道系数和先前的回波信道系数来估计表示当前列车信号部分与前一列车信号部分之间的系数的当前回波信道线性预测系数在先前的列车信号部分生成。使用当前回波信道系数，先前的回波信道系数和当前回波信道线性预测系数来估计下一个回波信道系数。使用当前回波信道系数和下一个回波信道系数来估计列车信号部分外的回波信道系数。

8. 发明申请

US20090215390A1 METHOD AND APPARATUS FOR ESTIMATING/REMOVING ECHO SIGNAL USING CHANNEL COEFFICIENT PREDICTING TECHNIQUE IN MULTI-CARRIER SYSTEM 有权
标题翻译：在多载波系统中使用信道系数预测技术估计/去除信号信号的方法和装置
公开(公告)号：US20090215390A1
公开(公告)日：2009-08-27
申请号：US12391878
申请日：2009-02-24
申请人： Jung-Woo KU , Jae-Bum Kim , Hee-Won Kang , Hwa-Sun You
发明人： Jung-Woo KU , Jae-Bum Kim , Hee-Won Kang , Hwa-Sun You
IPC分类号： H04B7/165
CPC分类号： H04B7/15585
摘要： A method and an apparatus are provided for estimating and removing interference of a signal at a wireless repeater operating in a multi-carrier system. In the method, a current echo channel linear prediction coefficient, which represents a coefficient between a current train signal section and a previous train signal section, is estimated using a current echo channel coefficient estimated in the current train signal section and a previous echo channel coefficient generated in the previous train signal section. A next echo channel coefficient is estimated using the current echo channel coefficient, the previous echo channel coefficient, and the current echo channel linear prediction coefficient. An echo channel coefficient outside a train signal section is estimated using the current echo channel coefficient and the next echo channel coefficient.
摘要翻译：提供一种用于估计和去除在多载波系统中操作的无线中继器处的信号的干扰的方法和装置。在该方法中，使用在当前列车信号部分中估计的当前回波信道系数和先前的回波信道系数来估计表示当前列车信号部分与前一列车信号部分之间的系数的当前回波信道线性预测系数在先前的列车信号部分生成。使用当前回波信道系数，先前的回波信道系数和当前回波信道线性预测系数来估计下一个回波信道系数。使用当前回波信道系数和下一个回波信道系数来估计列车信号部分外的回波信道系数。

9. 发明申请

US20060212289A1 Apparatus and method for converting voice packet rate 审中-公开
标题翻译：用于转换语音分组速率的装置和方法
公开(公告)号：US20060212289A1
公开(公告)日：2006-09-21
申请号：US11331363
申请日：2006-01-13
申请人： Geun-Bae Song , Ho-Chong Park , Jae-Bum Kim
发明人： Geun-Bae Song , Ho-Chong Park , Jae-Bum Kim
IPC分类号： G10L19/08
CPC分类号： G10L19/173 , G10L19/12 , G10L19/24
摘要： Provided is a voice packet rate converting method and apparatus. The rate of at least one first element of an input voice packet compressed at a first rate is converted to a second rate at a PCM level, and the rate of a second element of the input voice packet is converted to the second rate at a parameter level. An output voice packet compressed at the second rate is generated by combining the first element and second elements at the second rate.
摘要翻译：提供了语音分组速率转换方法和装置。以第一速率压缩的输入语音分组的至少一个第一单元的速率被转换为PCM级的第二速率，并且输入语音分组的第二单元的速率被转换成参数的第二速率水平。通过以第二速率组合第一元素和第二元素来产生以第二速率压缩的输出语音分组。

10. 发明授权

US08363638B2 Apparatus and method for forwarding voice packet in a digital communication system 有权
标题翻译：用于在数字通信系统中转发语音分组的装置和方法
公开(公告)号：US08363638B2
公开(公告)日：2013-01-29
申请号：US11338888
申请日：2006-01-25
申请人： Ho-Chong Park , Geun-Bae Song , Jae-Bum Kim
发明人： Ho-Chong Park , Geun-Bae Song , Jae-Bum Kim
IPC分类号： H04Q3/00 , H04M7/00 , H04L29/06
CPC分类号： H04L29/06027 , H04L65/605 , H04L65/607
摘要： A voice packet forwarding apparatus and method is provided in a digital communication system including a switched vocoder module to directly pass a voice packet received from a packet terminal to a digital communication network or a PCM signal decoded from the voice packet to the digital communication network. The switched vocoder module is also provided to directly pass a voice packet received from the digital communication network to the packet terminal or transmit a voice packet coded from a PCM signal received from the digital communication network. In the presence of additional data to be transmitted to the packet terminal, a data inserter is provided to insert the additional data in the voice packet received from the switched vocoder module and transmit the voice packet with the additional data to the packet terminal. A controller is provided to control the switched vocoder module and the data inserter.
摘要翻译：在包括切换声码器模块的数字通信系统中提供语音分组转发装置和方法，以将从分组终端接收的语音分组直接传递到数字通信网络或从语音分组解码的PCM信号到数字通信网络。还提供了切换声码器模块以将从数字通信网络接收到的语音分组直接传送到分组终端，或者传送从数字通信网络接收的PCM信号编码的语音分组。在存在要发送到分组终端的附加数据的情况下，提供数据插入器以将附加数据插入从切换的声码器模块接收的语音分组中，并将具有附加数据的语音分组发送到分组终端。提供控制器来控制切换的声码器模块和数据插入器。

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