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31. 发明申请

US20050027516A1 Wide-band speech signal compression and decompression apparatus, and method thereof 有权
标题翻译：宽带语音信号压缩和解压缩装置及其方法
公开(公告)号：US20050027516A1
公开(公告)日：2005-02-03
申请号：US10891423
申请日：2004-07-15
申请人： Woo-suk Lee , Ho-chong Park , Chang-yong Son
发明人： Woo-suk Lee , Ho-chong Park , Chang-yong Son
IPC分类号： G10L19/02 , G10L19/00 , G10L19/12 , G10L19/14 , G10L21/02 , H03M7/30 , G10L19/04
CPC分类号： G10L21/038 , G10L19/24
摘要： An apparatus to compress a wide-band speech signal, the apparatus including a narrow-band speech compressor to compress a low-band speech signal of the wide-band speech signal and output the compressed low-band speech signal as a low-band speech packet; and a high-band speech compressor to compress a high-band speech signal of the wide-band speech signal using energy information of the low-band speech signal provided from the narrow-band speech compressor, and outputs the compressed high-band speech signal as a high-band speech packet.
摘要翻译：一种用于压缩宽带语音信号的装置，该装置包括窄带语音压缩器，以压缩宽带语音信号的低频语音信号，并将压缩的低频语音信号作为低频带语音输出包; 以及高频带语音压缩器，使用从窄带语音压缩器提供的低频语音信号的能量信息来压缩宽带语音信号的高频语音信号，并输出压缩的高频带语音信号作为高频带语音包。

32. 发明授权

US07080007B2 Apparatus and method for computing speech absence probability, and apparatus and method removing noise using computation apparatus and method 失效
标题翻译：用于计算语音缺失概率的装置和方法，以及使用计算装置和方法去除噪声的装置和方法
公开(公告)号：US07080007B2
公开(公告)日：2006-07-18
申请号：US10253418
申请日：2002-09-25
申请人： Chang-yong Son , Vladimir Shin , Sang-ryong Kim
发明人： Chang-yong Son , Vladimir Shin , Sang-ryong Kim
IPC分类号： G10L11/02
CPC分类号： G10L25/78 , G10L21/02
摘要： An apparatus and a method for computing a Speech Absence Probability (SAP), and an apparatus and a method for removing noise by using the SAP computing device and method are provided. The provided SAP computing device for computing the SAP indicating probability that speech is absent in a mth frame, from a first through Ncth posteriori (Nc means the total number of channels) Signal to Noise Ratios (SNR) calculated with regard to the mth frame of a speech signal and a first through Ncth predicted SNRs predicted with regard to the mth frame, includes: a first through Ncth likelihood ratio generators for generating a first through Ncth likelihood ratios from the first through Ncth posterior SNRs and the first through Ncth predicted SNRs, and outputting them; a first multiplying unit for multiplying the first through Ncth likelihood ratios by a predetermined a priori probability, and outputting the multiplication results; an adding unit for adding each of the multiplication results received from the first multiplying unit to a predetermined value, and outputting the added results; a second multiplying unit for multiplying the added results received from the adding unit and outputting the multiplication result; and a inverse number calculator for calculating inverse number of the multiplication result received from the second multiplying unit and outputting the calculated inverse number as the SAP. Therefore, since the accuracy of the calculated SAP is high, noise can be efficiently removed from the speech signal that may have noise and an enhanced speech signal with an enhanced quality can be provided.
摘要翻译：提供了一种用于计算语音缺席概率（SAP）的装置和方法，以及通过使用SAP计算装置和方法来消除噪声的装置和方法。提供的用于计算SAP的SAP计算设备，指示在第帧中从第一至Nc第（S）个后验（Nc表示总信道数）的语音不存在语音的概率，相对于语音信号的第m帧和/或第一至第N个预测SNR计算的信噪比（SNR）与第m个/ 包括：第一至第N个第一个似然比发生器，用于产生从第一到第N个第个似然比， / SUP>后验SNR和第一至第N个第个预测SNR，并输出它们; 第一乘法单元，用于将第一至第N个第个似然比乘以预定的先验概率，并输出乘法结果; 加法单元，用于将从第一乘法单元接收的乘法结果中的每一个相加到预定值，并输出相加结果; 第二乘法单元，用于将从加法单元接收的相加结果相乘并输出相乘结果; 以及逆数计算器，用于计算从第二乘法单元接收的乘法结果的倒数，并输出计算出的倒数作为SAP。因此，由于计算出的SAP的精度高，所以可以从可能具有噪声的语音信号中有效地去除噪声，并且可以提供具有提高质量的增强语音信号。

33. 发明申请

US20050004794A1 Speech compression and decompression apparatuses and methods providing scalable bandwidth structure 有权
标题翻译：语音压缩和解压缩装置和方法提供可扩展的带宽结构
公开(公告)号：US20050004794A1
公开(公告)日：2005-01-06
申请号：US10882339
申请日：2004-07-02
申请人： Chang-yong Son , Ho-chong Park , Yong-beom Lee , Woo-suk Lee
发明人： Chang-yong Son , Ho-chong Park , Yong-beom Lee , Woo-suk Lee
IPC分类号： G10L19/00 , G10L19/14 , H03M7/30 , G10L19/04
CPC分类号： G10L19/24
摘要： A speech compression apparatus including: a first band-transform unit transforming a wideband speech signal to a narrowband low-band speech signal; a narrowband speech compressor compressing the narrowband low-band speech signal and outputting a result of the compressing as a low-band speech packet; a decompression unit decompressing the low-band speech packet and obtaining a decompressed wideband low-band speech signal; an error detection unit detecting an error signal that corresponds to a difference between the wideband speech signal and the decompressed wideband low-band speech signal; and a high-band speech compression unit compressing the error signal and a high-band speech signal of the wideband speech signal and outputting the result of the compressing as a high-band speech packet.
摘要翻译：一种语音压缩装置，包括：将宽带语音信号变换为窄带低频语音信号的第一频带变换单元; 窄带语音压缩器压缩窄带低频语音信号并输出压缩结果作为低频语音分组; 解压缩单元解压缩低频带语音分组并获得解压缩的宽带低频语音信号; 误差检测单元，检测对应于宽带语音信号和解压缩宽带低频带语音信号之间的差的误差信号; 以及高频语音压缩单元，压缩宽带语音信号的误差信号和高频带语音信号，并将压缩结果输出为高频带语音分组。

34. 发明授权

US08571878B2 Speech compression and decompression apparatuses and methods providing scalable bandwidth structure 有权
公开(公告)号：US08571878B2
公开(公告)日：2013-10-29
申请号：US12588357
申请日：2009-10-13
申请人： Chang-yong Son , Ho-chong Park , Yong-beom Lee , Woo-suk Lee
发明人： Chang-yong Son , Ho-chong Park , Yong-beom Lee , Woo-suk Lee
IPC分类号： G10L21/04
CPC分类号： G10L19/24
摘要： A speech compression apparatus including: a first band-transform unit transforming a wideband speech signal to a narrowband low-band speech signal; a narrowband speech compressor compressing the narrowband low-band speech signal and outputting a result of the compressing as a low-band speech packet; a decompression unit decompressing the low-band speech packet and obtaining a decompressed wideband low-band speech signal; an error detection unit detecting an error signal that corresponds to a difference between the wideband speech signal and the decompressed wideband low-band speech signal; and a high-band speech compression unit compressing the error signal and a high-band speech signal of the wideband speech signal and outputting the result of the compressing as a high-band speech packet.

35. 发明授权

US07630890B2 Block-constrained TCQ method, and method and apparatus for quantizing LSF parameter employing the same in speech coding system 有权
标题翻译：块约束TCQ方法，以及在语音编码系统中量化LSF参数的方法和装置
公开(公告)号：US07630890B2
公开(公告)日：2009-12-08
申请号：US10780899
申请日：2004-02-19
申请人： Chang-yong Son , Sang-won Kang , Yong-won Shin , Thomas R. Fischer
发明人： Chang-yong Son , Sang-won Kang , Yong-won Shin , Thomas R. Fischer
IPC分类号： G10L19/00 , G10L19/12
CPC分类号： G10L19/0212 , G10L19/06
摘要： A block-constrained Trellis coded quantization (TCQ) method and a method and apparatus for quantizing line spectral frequency (LSF) parameters employing the same in a speech coding system wherein the LSF coefficient quantizing method includes: removing the direct current (DC) component in an input LSF coefficient vector; generating a first prediction error vector by performing inter-frame and intra-frame prediction for the LSF coefficient vector, in which the DC component is removed, quantizing the first prediction error vector by using the BC-TCQ algorithm, and by performing intra-frame and inter-frame prediction compensation, generating a quantized first LSF coefficient vector; generating a second prediction error vector by performing intra-frame prediction for the LSF coefficient vector, in which the DC component is removed, quantizing the second prediction error vector by using the BC-TCQ algorithm, and then, by performing intra-frame prediction compensation, generating a quantized second LSF coefficient vector; and selectively outputting a vector having a shorter Euclidian distance to the input LSF coefficient vector between the generated quantized first and second LSF coefficient vectors.
摘要翻译：块约束网格编码量化（TCQ）方法和用于量化在语音编码系统中采用该频谱频率频率（LSF）参数的线谱频率（LSF）参数的方法和装置，其中LSF系数量化方法包括：去除直流（DC）分量输入LSF系数向量; 通过对其中去除了DC分量的LSF系数向量进行帧间和帧内预测来生成第一预测误差向量，通过使用BC-TCQ算法量化第一预测误差向量，并且通过执行帧内和帧间预测补偿，生成量化的第一LSF系数向量; 通过对去除了DC分量的LSF系数向量进行帧内预测，通过使用BC-TCQ算法对第二预测误差向量进行量化，然后通过进行帧内预测补偿来生成第二预测误差矢量产生量化的第二LSF系数矢量; 并且在生成的量化的第一和第二LSF系数向量之间选择性地输出具有较短的欧几里德距离的向量到输入的LSF系数向量。

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