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1. 发明授权

US08582657B2 Multi-dimensional and multi-stage transforming apparatus and method 失效
标题翻译：多维和多级变换装置及方法
公开(公告)号：US08582657B2
公开(公告)日：2013-11-12
申请号：US12307408
申请日：2007-02-22
申请人： Se-Yoon Jeong , Hae-Chul Choi , Jeong-Il Seo , Seung-Kwon Beack , In-Seon Jang , Jae-Gon Kim , Kyung-Ae Moon , Dae-Young Jang , Jin-Woo Hong , Jin-Woong Kim , Chang-Beom Ahn , Seoung-Jun Oh , Dong-Gyu Sim , Ho-Chong Park , Yung-Lyul Lee , Su-Yeol Jeon
发明人： Se-Yoon Jeong , Hae-Chul Choi , Jeong-Il Seo , Seung-Kwon Beack , In-Seon Jang , Jae-Gon Kim , Kyung-Ae Moon , Dae-Young Jang , Jin-Woo Hong , Jin-Woong Kim , Chang-Beom Ahn , Seoung-Jun Oh , Dong-Gyu Sim , Ho-Chong Park , Yung-Lyul Lee , Su-Yeol Jeon
IPC分类号： H04N7/12 , H04N11/02 , H04N11/04
CPC分类号： H04N19/61 , H04N19/51
摘要： Provided are an apparatus for multi-stage transforming a plurality of unit blocks in multi-dimension that can improve compression efficiency of video data by collecting Discrete Cosine Transforming (DCT) coefficients of neighboring blocks and performing an additional transformation based on the DCT coefficients of an original picture and a differential picture. The method includes the steps of: performing a Discrete Cosine Transform (DCT) on inputted picture data and selecting R blocks of a predetermined size from DCT picture data, where R is a natural number equal to or greater than 2; arranging DCT coefficients of each of the selected R blocks according to each frequency in one-dimension; and performing one-dimensional transformation again on the DCT coefficients arranged in one-dimension.
摘要翻译：提供了一种用于多级变换多维单元块的装置，其可以通过收集相邻块的离散余弦变换（DCT）系数并且基于相关块的DCT系数执行附加变换，从而提高视频数据的压缩效率原始图片和差异图片。该方法包括以下步骤：对输入的图像数据执行离散余弦变换（DCT），并从DCT图像数据中选择预定尺寸的R个块，其中R是等于或大于2的自然数; 根据每个频率在一维中排列所选择的R块中的每一个的DCT系数; 并对一维排列的DCT系数再次进行一维变换。

2. 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.

3. 发明申请

US20110137663A1 ENCODING APPARATUS AND DECODING APPARATUS FOR TRANSFORMING BETWEEN MODIFIED DISCRETE COSINE TRANSFORM-BASED CODER AND HETERO CODER 有权
标题翻译：编码设备和解码设备，用于改造基于变换的基于变换的变换编码器和异步编码器
公开(公告)号：US20110137663A1
公开(公告)日：2011-06-09
申请号：US13057832
申请日：2009-09-18
申请人： Seung Kwon Beack , Tae Jin Lee , Min Je Kim , Dae Young Jang , Kyeongok Kang , Jin Woo Hong , Ho Chong Park , Young-cheol Park
发明人： Seung Kwon Beack , Tae Jin Lee , Min Je Kim , Dae Young Jang , Kyeongok Kang , Jin Woo Hong , Ho Chong Park , Young-cheol Park
IPC分类号： G10L19/00
CPC分类号： G10L19/0212
摘要： An encoding apparatus and a decoding apparatus in a transform between a Modified Discrete Cosine Transform (MDCT)-based coder and a hetero coder are provided. The encoding apparatus may encode additional information to restore an input signal encoded according to the MDCT-based coding scheme, when switching occurs between the MDCT-based coder and the hetero coder. Accordingly, an unnecessary bitstream may be prevented from being generated, and minimum additional information may be encoded.
摘要翻译：提供了基于改进离散余弦变换（MDCT）的编码器和异步编码器之间的变换中的编码装置和解码装置。当在基于MDCT的编码器和异步编码器之间进行切换时，编码装置可以编码附加信息以恢复根据基于MDCT的编码方案编码的输入信号。因此，可以防止不必要的比特流被生成，并且可以编码最小的附加信息。

4. 发明授权

US08433565B2 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：US08433565B2
公开(公告)日：2013-04-30
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： G01L19/02 , G01L19/00
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。

5. 发明授权

US08315862B2 Audio signal quality enhancement apparatus and method 有权
标题翻译：音频信号质量增强装置及方法
公开(公告)号：US08315862B2
公开(公告)日：2012-11-20
申请号：US12479009
申请日：2009-06-05
申请人： Jung Hoe Kim , Ho Chong Park , Eun Mi Oh
发明人： Jung Hoe Kim , Ho Chong Park , Eun Mi Oh
IPC分类号： G10L11/00 , G10L19/02 , G10L19/14 , G10L11/04 , G10L11/06 , G10L21/02
CPC分类号： G10L21/0364
摘要： An audio signal quality enhancement apparatus and method. The apparatus includes a pitch calculating unit to extract a pitch period of an audio signal, a frequency domain transforming unit to transform the audio signal to a frequency domain, a frequency band dividing unit to classify the transformed audio signal into audio signals for each of the plurality of frequency bands based on the extracted pitch period, and a pitch enhancement unit to determine a gain based on a volume of the transformed audio signal, and to generate an output signal by multiplying each of the classified audio signals with respect to each of the plurality of frequency bands by the gain, thereby enhancing quality of the audio signal.
摘要翻译：一种音频信号质量增强装置和方法。该装置包括：音调计算单元，用于提取音频信号的音调周期;频域变换单元，用于将音频信号变换到频域;频带分割单元，用于将经变换的音频信号分类为音频信号，基于所提取的音调周期的多个频带，以及音调增强单元，用于基于经变换的音频信号的音量来确定增益，并且通过将每个分类的音频信号相对于每个音频信号相乘来生成输出信号通过增益获得多个频带，从而提高音频信号的质量。

6. 发明授权

US06108624A Method for improving performance of a voice coder 有权
标题翻译：提高语音编码器性能的方法
公开(公告)号：US06108624A
公开(公告)日：2000-08-22
申请号：US150362
申请日：1998-09-09
申请人： Ho-chong Park
发明人： Ho-chong Park
IPC分类号： G10L19/00 , G10L19/04 , G10L19/08 , G10L19/12 , G10L19/14 , H03M7/30 , H03M13/00
CPC分类号： G10L19/083
摘要： This invention relates to a method for improving performance of voice coder. A target signal is calculated for a window, and the optimal candidate codebooks and optimal candidate codebook gains from the target signal for the window are searched for all codebook indices and all codebook optimal gains. Target signals for a second subframe are then calculated from the target signal for the window, optimal candidate codebooks and optimal candidate codebook gains for the first subframe. The optimal candidate codebooks and optimal candidate codebook gains for the second subframe from the target signal for the second subframe are searched and the optimal candidate codebooks and optimal candidate codebook gains for the first subframe are searched. The optimal codebook and optimal codebook gain for two subframes are selected from the respective target signal for the window, optimal candidate gains and all possible quantized gains for the first subframe and optimal candidate codebooks and optimal candidate codebook gains for the second subframe.
摘要翻译：本发明涉及一种提高语音编码器性能的方法。针对窗口计算目标信号，并搜索来自窗口的目标信号的最佳候选码本和最佳候选码本增益，以获得所有码本索引和所有码本最佳增益。然后从窗口的目标信号，最佳候选码本和第一子帧的最佳候选码本增益计算第二子帧的目标信号。搜索来自第二子帧的目标信号的第二子帧的最佳候选码本和最佳候选码本增益，并搜索第一子帧的最佳候选码本和最佳候选码本增益。从用于窗口的相应目标信号，最佳候选增益和用于第一子帧和最佳候选码本的所有可能量化增益以及用于第二子帧的最佳候选码本增益选择两个子帧的最佳码本和最佳码本增益。

7. 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。

8. 发明申请

US20100094638A1 APPARATUS AND METHOD FOR DECIDING ADAPTIVE NOISE LEVEL FOR BANDWIDTH EXTENSION 失效
标题翻译：用于决定带宽扩展的自适应噪声水平的装置和方法
公开(公告)号：US20100094638A1
公开(公告)日：2010-04-15
申请号：US12414768
申请日：2009-03-31
申请人： Tae-Jin LEE , Seung-Kwon BEACK , Min-Je KIM , Jeong-Il SEO , Dae-Young JANG , Kyeong-Ok KANG , Jin-Woo HONG , Ho-Chong PARK , Young-Cheol PARK , Rin-Chul KIM , Seong-Jun OH , Chang-Beom AHN , Dong-Gyu SIM
发明人： Tae-Jin LEE , Seung-Kwon BEACK , Min-Je KIM , Jeong-Il SEO , Dae-Young JANG , Kyeong-Ok KANG , Jin-Woo HONG , Ho-Chong PARK , Young-Cheol PARK , Rin-Chul KIM , Seong-Jun OH , Chang-Beom AHN , Dong-Gyu SIM
IPC分类号： G10L21/00
CPC分类号： H03G7/002 , G10L21/038 , G11B20/10046 , G11B20/10222 , G11B20/10527 , G11B20/24 , G11B2020/10546 , G11B2020/10564
摘要： An apparatus and method for deciding an adaptive noise level for bandwidth extension are provided. The apparatus includes a noise level decider for deciding a high-band noise level for bandwidth extension according to tonality of an input signal, a pitch frequency analyzer for detecting a pitch frequency of the input signal and analyzing correlation between the detected pitch frequency and a frequency channel, and a noise level controller for adaptively controlling the decided high-band noise level based on the analyzed correlation of the pitch frequency and the frequency channel.
摘要翻译：提供了一种用于确定带宽扩展的自适应噪声电平的装置和方法。该装置包括：噪声电平判定器，用于根据输入信号的音调判定带宽扩展的高频带噪声电平;音调频率分析器，用于检测输入信号的音调频率，并分析所检测音调频率与频率之间的相关性信道和噪声电平控制器，用于基于所分析的音调频率和频率信道的相关度自适应地控制所确定的高带噪声电平。

9. 发明申请

US20100046613A1 MULTI-DIMENSIONAL AND MULTI-STAGE TRANSFORMING APPARATUS AND METHOD 失效
标题翻译：多维和多级变换装置及方法
公开(公告)号：US20100046613A1
公开(公告)日：2010-02-25
申请号：US12307408
申请日：2007-02-22
申请人： Se-Yoon Jeong , Hae-Chul Choi , Jeong-Il Seo , Seung-Kwon Beack , In-Seon Jang , Jae-Gon Kim , Kyung-Ae Moon , Dae-Young Jang , Jin-Woo Hong , Jin-Woong Kim , Chang-Beom Ahn , Seoung-Jun Oh , Dong-Gyu Sim , Ho-Chong Park , Yung-Lyul Lee , Su-Yeol Jeon
发明人： Se-Yoon Jeong , Hae-Chul Choi , Jeong-Il Seo , Seung-Kwon Beack , In-Seon Jang , Jae-Gon Kim , Kyung-Ae Moon , Dae-Young Jang , Jin-Woo Hong , Jin-Woong Kim , Chang-Beom Ahn , Seoung-Jun Oh , Dong-Gyu Sim , Ho-Chong Park , Yung-Lyul Lee , Su-Yeol Jeon
IPC分类号： H04N7/26
CPC分类号： H04N19/61 , H04N19/51
摘要： Provided are an apparatus for multi-stage transforming a plurality of unit blocks in multi-dimension that can improve compression efficiency of video data by collecting Discrete Cosine Transforming (DCT) coefficients of neighboring blocks and performing an additional transformation based on the DCT coefficients of an original picture and a differential picture. The method includes the steps of: performing a Discrete Cosine Transform (DCT) on inputted picture data and selecting R blocks of a predetermined size from DCT picture data, where R is a natural number equal to or greater than 2; arranging DCT coefficients of each of the selected R blocks according to each frequency in one-dimension; and performing one-dimensional transformation again on the DCT coefficients arranged in one-dimension.
摘要翻译：提供了一种用于多级变换多维单元块的装置，其可以通过收集相邻块的离散余弦变换（DCT）系数并且基于相关块的DCT系数执行附加变换，从而提高视频数据的压缩效率原始图片和差异图片。该方法包括以下步骤：对输入的图像数据执行离散余弦变换（DCT），并从DCT图像数据中选择预定尺寸的R个块，其中R是等于或大于2的自然数; 根据每个频率在一维中排列所选择的R块中的每一个的DCT系数; 并对一维排列的DCT系数再次进行一维变换。

10. 发明申请

US20100036658A1 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：US20100036658A1
公开(公告)日：2010-02-11
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： G10L19/12 , G10L21/00 , 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.
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。

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