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1. 发明申请

US20060095255A1 Pitch conversion method for reducing complexity of transcoder 审中-公开
标题翻译：用于降低代码转换器复杂度的间距转换方法
公开(公告)号：US20060095255A1
公开(公告)日：2006-05-04
申请号：US11261348
申请日：2005-10-27
申请人： Eung-Don Lee , Jong-Mo Sung , Do-Young Kim
发明人： Eung-Don Lee , Jong-Mo Sung , Do-Young Kim
IPC分类号： G10L11/04
CPC分类号： G10L21/003 , G10L19/173
摘要： The present invention provides a pitch conversion method for reducing complexity of a transcoder for optimizing a speech quality and a complexity using characteristics of encoder in a transmitter and decoder in a receiver. The pitch conversion method for reducing complexity of the transcoder includes: classifying plural frames transmitted from a transmitter into frame units, each having a predetermined number of frame; recognizing a transmitting pitch included in the frame units; deciding a pitch estimation range based on the transmitting pitch; estimating at least one candidate pitch in the pitch estimation range by using a open-loop pitch search operation; and searching a final pitch around the estimated candidate pitch by using a closed-loop pitch search operation.
摘要翻译：本发明提供了一种音调转换方法，用于降低代码转换器的复杂度，以便使用接收机中的发射机和解码器中的编码器的特性优化语音质量和复杂度。用于降低代码转换器的复杂度的音调转换方法包括：将从发送器发送的多个帧分为帧单位，每个帧具有预定数量的帧; 识别包括在所述帧单元中的发送音调; 基于发送间距决定音调估计范围; 通过使用开环音调搜索操作来估计音调估计范围中的至少一个候选音调; 并且通过使用闭环音调搜索操作来搜索所估计的候选音调周围的最后音调。

2. 发明申请

US20100211386A1 METHOD FOR MANUFACTURING A SEMICONDUCTOR PACKAGE 有权
标题翻译：制造半导体封装的方法
公开(公告)号：US20100211386A1
公开(公告)日：2010-08-19
申请号：US12767271
申请日：2010-04-26
申请人： Eung-Don Lee , Do-Young Kim
发明人： Eung-Don Lee , Do-Young Kim
IPC分类号： G10L19/12
CPC分类号： G10L19/032 , G10L2019/0013
摘要： The present research can decrease the amount of computation and enhance speech quality by using a global pulse replacement method in a fixed codebook search. The fixed codebook search method in a speech encoder based upon global pulse replacement, includes the steps of: (a) computing absolute values of the pulse-position likelihood-estimator vectors; (b) temporarily obtaining a codebook vector; (c) computing a mathematical equation by replacing a pulse; (d) determining whether a value computed based upon the mathematical equation is increased after pulse replacement; (e) obtaining a new codebook vector by replacing the pulse; and (f) maintaining a previous codebook vector.
摘要翻译：本研究可以通过在固定码本搜索中使用全局脉冲替换方法来减少计算量并提高语音质量。基于全局脉冲替换的语音编码器中的固定码本搜索方法包括以下步骤：（a）计算脉冲位置似然估计器矢量的绝对值; （b）暂时获得码本矢量; （c）通过替换脉冲来计算数学方程; （d）确定在脉冲置换之后基于数学方程计算的值是否增加; （e）通过替换脉冲获得新的码本矢量; 和（f）保持先前的码本向量。

3. 发明授权

US07739108B2 Method for searching fixed codebook based upon global pulse replacement 有权
标题翻译：基于全局脉冲替换检索固定码本的方法
公开(公告)号：US07739108B2
公开(公告)日：2010-06-15
申请号：US10740310
申请日：2003-12-17
申请人： Eung-Don Lee , Do-Young Kim
发明人： Eung-Don Lee , Do-Young Kim
IPC分类号： G10L19/00 , G10L19/12 , H04L12/66
CPC分类号： G10L19/032 , G10L2019/0013
摘要： The present research can decrease the amount of computation and enhance speech quality by using a global pulse replacement method in a fixed codebook search. The fixed codebook search method in a speech encoder based upon global pulse replacement, includes the steps of: (a) computing absolute values of the pulse-position likelihood-estimator vectors; (b) temporarily obtaining a codebook vector; (c) computing a mathematical equation by replacing a pulse; (d) determining whether a value computed based upon the mathematical equation is increased after pulse replacement; (e) obtaining a new codebook vector by replacing the pulse; and (f) maintaining a previous codebook vector.
摘要翻译：本研究可以通过在固定码本搜索中使用全局脉冲替换方法来减少计算量并提高语音质量。基于全局脉冲替换的语音编码器中的固定码本搜索方法包括以下步骤：（a）计算脉冲位置似然估计器矢量的绝对值; （b）暂时获得码本矢量; （c）通过替换脉冲来计算数学方程; （d）确定在脉冲置换之后基于数学方程计算的值是否增加; （e）通过替换脉冲获得新的码本矢量; 和（f）保持先前的码本向量。

4. 发明授权

US08185385B2 Method for searching fixed codebook based upon global pulse replacement 有权
标题翻译：基于全局脉冲替换检索固定码本的方法
公开(公告)号：US08185385B2
公开(公告)日：2012-05-22
申请号：US12767271
申请日：2010-04-26
申请人： Eung-Don Lee , Do-Young Kim
发明人： Eung-Don Lee , Do-Young Kim
IPC分类号： G01L19/00 , G01L19/12 , H04L12/66
CPC分类号： G10L19/032 , G10L2019/0013
摘要： The present research can decrease the amount of computation and enhance speech quality by using a global pulse replacement method in a fixed codebook search. The fixed codebook search method in a speech encoder based upon global pulse replacement, includes the steps of: (a) computing absolute values of the pulse-position likelihood-estimator vectors; (b) temporarily obtaining a codebook vector; (c) computing a mathematical equation by replacing a pulse; (d) determining whether a value computed based upon the mathematical equation is increased after pulse replacement; (e) obtaining a new codebook vector by replacing the pulse; and (f) maintaining a previous codebook vector.
摘要翻译：本研究可以通过在固定码本搜索中使用全局脉冲替换方法来减少计算量并提高语音质量。基于全局脉冲替换的语音编码器中的固定码本搜索方法包括以下步骤：（a）计算脉冲位置似然估计器矢量的绝对值; （b）暂时获得码本矢量; （c）通过替换脉冲来计算数学方程; （d）确定在脉冲置换之后基于数学方程计算的值是否增加; （e）通过替换脉冲获得新的码本矢量; 和（f）保持先前的码本向量。

5. 发明申请

US20050049853A1 Frame loss concealment method and device for VoIP system 审中-公开
标题翻译： VoIP系统的帧丢失隐藏方法和设备
公开(公告)号：US20050049853A1
公开(公告)日：2005-03-03
申请号：US10932397
申请日：2004-09-01
申请人： Mi-Suk Lee , Eung-Don Lee , Do-Young Kim , Hong-Kook Kim , Seung-Ho Choi
发明人： Mi-Suk Lee , Eung-Don Lee , Do-Young Kim , Hong-Kook Kim , Seung-Ho Choi
IPC分类号： G10L19/00
CPC分类号： G10L19/005
摘要： Disclosed is a packet (frame) loss concealment method and device for a VoIP system, for reducing speech quality degradation caused by packet loss generated when transmitting speech data through a packet network. When a packet loss occur, the speech signal of the lost frame are reconstruct by combing the forward and backward prediction from the good frame before and after the lost frame Thus, speech quality of a speech coder can be improved without any extra delay in packet loss condition.
摘要翻译：公开了一种用于VoIP系统的分组（帧）丢失隐藏方法和装置，用于在通过分组网络发送语音数据时减少由分组丢失引起的语音质量劣化。当发生分组丢失时，通过从丢失帧之前和之后的良好帧组合前向和后向预测来重构丢失帧的语音信号。因此，可以改善语音编码器的语音质量，而不会在分组丢失中产生任何额外的延迟条件。

6. 发明申请

US20070124354A1 Method for composing lookup table and searching index thereof 失效
标题翻译：组合查找表和搜索索引的方法
公开(公告)号：US20070124354A1
公开(公告)日：2007-05-31
申请号：US11541213
申请日：2006-09-29
申请人： Eung-Don Lee , O-Hyung Kwon , Soo-In Lee
发明人： Eung-Don Lee , O-Hyung Kwon , Soo-In Lee
IPC分类号： G06F15/00
CPC分类号： G06F1/0353
摘要： A method for composing a lookup table and searching indexes thereof is provided. The method includes the steps of: a) composing a lookup table using a symmetry of a sine and a cosine function; b) changing and setting a gain of a DCO by reflecting a lookup table size in the DCO; c) transforming an absolute value of a DCO output to an integer value; d) determining a range of the integer value of the DCO output; e) searching indexes of a sine and an cosine function according to the range of the integer value of the DCO output; and f) correcting a sign of a lookup table value corresponding to the searched index of the sine function and a sign of a lookup table value corresponding to the searched index of the cosine function according to the range of integers of the DCO output.
摘要翻译：提供了一种组合查找表和搜索索引的方法。该方法包括以下步骤：a）使用正弦和余弦函数的对称来构成查找表; b）通过反映DCO中的查找表大小来更改和设置DCO的增益; c）将DCO输出的绝对值转换为整数值; d）确定DCO输出的整数值的范围; e）根据DCO输出的整数值的范围，搜索正弦和余弦函数的索引; 以及f）根据所述DCO输出的整数的范围，校正与搜索到的正弦函数的索引相对应的查找表值的符号和与所搜索的余弦函数的索引相对应的查找表值的符号。

7. 发明授权

US07945609B2 Method for composing lookup table and searching index thereof 失效
标题翻译：组合查找表和搜索索引的方法
公开(公告)号：US07945609B2
公开(公告)日：2011-05-17
申请号：US11541213
申请日：2006-09-29
申请人： Eung-Don Lee , O-Hyung Kwon , Soo-In Lee
发明人： Eung-Don Lee , O-Hyung Kwon , Soo-In Lee
IPC分类号： G06F1/02
CPC分类号： G06F1/0353
摘要： A method for composing a lookup table and searching indexes thereof is provided. The method includes the steps of: a) composing a lookup table using a symmetry of a sine and a cosine function; b) changing and setting a gain of a DCO by reflecting a lookup table size in the DCO; c) transforming an absolute value of a DCO output to an integer value; d) determining a range of the integer value of the DCO output; e) searching indexes of a sine and an cosine function according to the range of the integer value of the DCO output; and f) correcting a sign of a lookup table value corresponding to the searched index of the sine function and a sign of a lookup table value corresponding to the searched index of the cosine function according to the range of integers of the DCO output.
摘要翻译：提供了一种组合查找表和搜索索引的方法。该方法包括以下步骤：a）使用正弦和余弦函数的对称来构成查找表; b）通过反映DCO中的查找表大小来更改和设置DCO的增益; c）将DCO输出的绝对值转换为整数值; d）确定DCO输出的整数值的范围; e）根据DCO输出的整数值的范围，搜索正弦和余弦函数的索引; 以及f）根据所述DCO输出的整数的范围，校正与搜索到的正弦函数的索引相对应的查找表值的符号和与所搜索的余弦函数的索引相对应的查找表值的符号。

8. 发明申请

US20070121597A1 Apparatus and method for processing VoIP packet having multiple frames 审中-公开
标题翻译：用于处理具有多个帧的VoIP分组的装置和方法
公开(公告)号：US20070121597A1
公开(公告)日：2007-05-31
申请号：US11520882
申请日：2006-09-14
申请人： Eung-Don Lee , O-Hyung Kwon , Soo-In Lee
发明人： Eung-Don Lee , O-Hyung Kwon , Soo-In Lee
IPC分类号： H04L12/66
CPC分类号： H04L43/0829 , H04L29/06027 , H04L43/087 , H04L43/106 , H04L47/10 , H04L65/604 , H04L65/605 , H04L65/608 , H04L65/80
摘要： Provided is an apparatus and method for processing a Voice over Internet Protocol (VoIP) packet with multiple frames. The apparatus includes: a transmission packet processing unit for receiving a frame from a speech codec, forming a Real-time Transport Protocol (RTP) payload in a form of multiple frames and transmitting the RTP payload to an RTP stack; and a reception packet processing unit for receiving an RTP packet from the RTP stack, storing the RTP packet in a jitter buffer, performing dejittering, separating frames from the RTP payload one by one and transmitting the frames to the speech codec.
摘要翻译：提供了一种用于处理具有多个帧的因特网协议语音（VoIP）分组的装置和方法。该装置包括：发送分组处理单元，用于从语音编解码器接收帧，形成多帧形式的实时传输协议（RTP）有效载荷，并将RTP有效载荷发送到RTP栈; 以及接收分组处理单元，用于从RTP堆栈接收RTP分组，将RTP分组存储在抖动缓冲器中，执行去抖动，逐帧分离帧与RTP有效载荷并将帧发送到语音编解码器。

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