公开(公告)号：US08615090B2

公开(公告)日：2013-12-24

申请号：US12457845

申请日：2009-06-23

Applicant: Chang Yong Son ,  Do-Hyung Kim ,  Kang Eun Lee

Inventor： Chang Yong Son ,  Do-Hyung Kim ,  Kang Eun Lee

IPC: H03G3/00

CPC classification number: H04S3/002

Abstract: A method and apparatus of generating a sound field effect is provided. The sound field effect generating apparatus may generate a frequency coefficient that is frequency-transformed from a direct signal, may generate a reflection signal from the frequency coefficient, may generate an output signal using the frequency coefficient and the reflection signal, and may perform an inverse-frequency transform of the output signal.

Abstract translation: 提供了一种产生声场效应的方法和装置。 声场效应产生装置可以产生从直接信号频率变换的频率系数，可以从频率系数产生反射信号，可以使用频率系数和反射信号产生输出信号，并且可以执行反相 输出信号的频率变换。

公开(公告)号：US08612215B2

公开(公告)日：2013-12-17

申请号：US11930844

申请日：2007-10-31

Applicant: Chang-yong Son ,  Bun-mi Oh ,  Ho-sang Sung ,  Ki-hyun Choo ,  Jung-hue Kim ,  Kang-eun Lee

Inventor： Chang-yong Son ,  Bun-mi Oh ,  Ho-sang Sung ,  Ki-hyun Choo ,  Jung-hue Kim ,  Kang-eun Lee

IPC: G10L19/14

CPC classification number: G10L19/0204 ,  G10L19/093

Abstract: A method and apparatus to extract an important frequency component of an audio signal and a method and apparatus to encode and/or decode an audio signal by using the same. The method of extracting an important frequency component of an audio signal includes converting an audio signal of a time domain into an audio signal of a frequency domain, selecting a frequency band having a harmonic feature from the converted audio signal of the frequency domain, and extracting an important frequency component from the selected frequency band having the harmonic feature.

Abstract translation: 一种用于提取音频信号的重要频率分量的方法和装置，以及通过使用该方法和装置对音频信号进行编码和/或解码的方法和装置。 提取音频信号的重要频率分量的方法包括将时域的音频信号转换为频域的音频信号，从频域的转换的音频信号中选择具有谐波特征的频带，以及提取 来自具有谐波特征的所选频带的重要频率分量。

公开(公告)号：US08433565B2

公开(公告)日：2013-04-30

申请号：US10891423

申请日：2004-07-15

Applicant: Woo-suk Lee ,  Ho-chong Park ,  Chang-yong Son

Inventor： Woo-suk Lee ,  Ho-chong Park ,  Chang-yong Son

IPC: G01L19/02 ,  G01L19/00

CPC classification number: G10L21/038 ,  G10L19/24

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20110313778A1

公开(公告)日：2011-12-22

申请号：US13220193

申请日：2011-08-29

Applicant: Chang-yong Son ,  Eun-mi Oh ,  Ki-hyun Choo ,  Jung-hoe Kim

Inventor： Chang-yong Son ,  Eun-mi Oh ,  Ki-hyun Choo ,  Jung-hoe Kim

IPC: G10L21/00

CPC classification number: G10L21/038

Abstract: Provided are a method and apparatus for encoding and decoding an audio signal. According to the present application, a signal of a high frequency band above a preset frequency band is adaptively encoded or decoded in the time domain or in the frequency domain by using a signal of a low frequency band below the preset frequency band. As such, the sound quality of a high frequency signal is not deteriorate even when an audio signal is encoded or decoded by using a small number of bits and thus coding efficiency may be maximized.

Abstract translation: 提供了一种用于对音频信号进行编码和解码的方法和装置。 根据本申请，通过使用低于预设频带的低频信号，在时域或频域中自适应地编码或解码高于预置频带的高频带的信号。 因此，即使当通过使用少量位来对音频信号进行编码或解码时，高频信号的声音质量也不会恶化，从而可以使编码效率最大化。

公开(公告)号：US20110305343A1

公开(公告)日：2011-12-15

申请号：US13067530

申请日：2011-06-07

Applicant: Kang Eun Lee ,  Do-Hyung Kim ,  Chang Yong Son

Inventor： Kang Eun Lee ,  Do-Hyung Kim ,  Chang Yong Son

IPC: G10L21/00 ,  H04R5/00

CPC classification number: G10L19/167 ,  G06F3/162 ,  G10L19/008

Abstract: Provided is an audio data decoding system and method that may selectively transfer compressed audio data from a top system to at least one audio input buffer of a separately provided and/or separately power management controlled subsystem, restore the compressed audio data to digital pulse code modulation (PCM) data using an audio decoding unit of the subsystem, convert the digital PCM data to analog PCM data or an audio output signal, and output the converted audio output signal.

Abstract translation: 提供了一种音频数据解码系统和方法，其可以选择性地将压缩音频数据从顶部系统传送到单独提供和/或分开的功率管理受控子系统的至少一个音频输入缓冲器，将压缩音频数据恢复为数字脉冲编码调制 （PCM）数据，使用该子系统的音频解码单元，将数字PCM数据转换为模拟PCM数据或音频输出信号，并输出转换的音频输出信号。

公开(公告)号：US20100166238A1

公开(公告)日：2010-07-01

申请号：US12458028

申请日：2009-06-29

Applicant: Kang Eun Lee ,  Do-Hyung Kim ,  Chang Yong Son

Inventor： Kang Eun Lee ,  Do-Hyung Kim ,  Chang Yong Son

IPC: H04R5/033

CPC classification number: H04S3/00

Abstract: A surround sound virtualization apparatus and method. The surround sound virtualization apparatus may include an audio decoder to perform head-related transfer function (HRTF) filtering, and a time delay unit to provide a time delay to a plurality of output signals of the audio decoder.

Abstract translation: 环绕声虚拟化设备和方法。 环绕声虚拟化装置可以包括用于执行头相关传送功能（HRTF）滤波的音频解码器，以及为音频解码器的多个输出信号提供时间延迟的时间延迟单元。

公开(公告)号：US20090089479A1

公开(公告)日：2009-04-02

申请号：US12071286

申请日：2008-02-19

Applicant: Chang-yong Son ,  Do-hyung Kim ,  Kang-gun Lee

Inventor： Chang-yong Son ,  Do-hyung Kim ,  Kang-gun Lee

IPC: G06F12/00

CPC classification number: H04S3/008 ,  H04S2420/07

Abstract: A memory management method is provided. In the method, a spatial parameter included in an encoding result is represented as a vector of a time slot and a frequency band in a first domain, a temporary matrix is calculated in the first domain by using the difference between vectors of a current time slot and a previous time slot at the same frequency band and then is stored in a memory, and then a matrix needed to decode the encoding result is represented as a matrix for a time slot and a frequency band in a second domain by using the temporary matrix, thereby reducing the load on the memory for storing matrices on which a decoding operation is performed.

Abstract translation: 提供了存储器管理方法。 在该方法中，包含在编码结果中的空间参数被表示为第一域中的时隙和频带的向量，通过使用当前时隙的向量之间的差在第一域中计算临时矩阵 和相同频带的先前时隙，然后存储在存储器中，然后将编码结果解码所需的矩阵通过使用临时矩阵表示为时隙和第二域中的频带的矩阵 从而减少用于存储执行解码操作的矩阵的存储器上的负载。

公开(公告)号：US20090037169A1

公开(公告)日：2009-02-05

申请号：US11930750

申请日：2007-10-31

Applicant: Kang-eun LEE ,  Do-hyung Kim ,  Chang-yong Son

Inventor： Kang-eun LEE ,  Do-hyung Kim ,  Chang-yong Son

IPC: G10L19/12

CPC classification number: G10L19/16 ,  G10L19/12

Abstract: A method and apparatus for implementing fixed codebooks as a common module are provided. In the method of implementing fixed codebooks of a plurality of speech codecs as a common module, it is possible to include only a part excluding fixed codebooks in a communication terminal or communication system, support various speech codecs without using a chip with high price and high performance, and reduce a memory space that is occupied by the speech codecs by generating a track of a fixed codebook corresponding to a speech codec based on information on the speech codec among the plurality of speech codecs and selecting a codebook vector corresponding to a target signal among codebook vectors constructed with combinations of pulses represented by the generated track. In addition, it is possible to reduce processing complexity as compared with a case of embodying the common fixed codebook module in software by embodying the common fixed codebook module in hardware. In addition, it is possible to improve the entire voice processing performance by applying the latest fixed codebook searching algorithm only to the common fixed codebook, thereby easily applying the latest fixed codebook searching algorithm to the entire voice codec.

Abstract translation: 提供了一种用于实现固定码本作为公共模块的方法和装置。 在将多个语音编解码器的固定码本实现为公共模块的方法中，可以在通信终端或通信系统中仅包括不包括固定码本的部分，而不使用高价格高的芯片支持各种语音编解码器 通过基于多个语音编解码器中的语音编解码器的信息生成与语音编解码器对应的固定码本的轨道，并且选择与目标信号相对应的码本矢量，来降低语音编解码器所占用的存储器空间 在由所生成的轨道表示的脉冲的组合构成的码本矢量中。 此外，与通过在硬件中实施公共固定码本模块的软件中体现公共固定码本模块的情况相比，可以降低处理复杂度。 此外，通过将最新的固定码本搜索算法应用于公共固定码本，可以提高整个语音处理性能，从而容易地将最新的固定码本搜索算法应用于整个语音编解码器。

公开(公告)号：US20080126096A1

公开(公告)日：2008-05-29

申请号：US11930752

申请日：2007-10-31

Applicant: Eun-mi OH ,  Ki-hyun Choo ,  Ho-sang Sung ,  Chang-yong Son ,  Jung-hoe Kim ,  Kang-eun Lee

Inventor： Eun-mi OH ,  Ki-hyun Choo ,  Ho-sang Sung ,  Chang-yong Son ,  Jung-hoe Kim ,  Kang-eun Lee

IPC: G10L19/00

CPC classification number: G10L19/005 ,  G10L19/0212 ,  G10L19/022 ,  H03M13/00

Abstract: An error concealment method and apparatus for an audio signal and a decoding method and apparatus for an audio signal using the error concealment method and apparatus. The error concealment method includes selecting one of an error concealment in a frequency domain and an error concealment in a time domain as an error concealment scheme for a current frame based on a predetermined criteria when an error occurs in the current frame, selecting one of a repetition scheme and an interpolation scheme in the frequency domain as the error concealment scheme for the current frame based on a predetermined criteria when the error concealment in the frequency domain is selected, and concealing the error of the current frame using the selected scheme.

Abstract translation: 一种用于音频信号的错误隐藏方法和装置，以及使用错误隐藏方法和装置的用于音频信号的解码方法和装置。 错误隐藏方法包括：当在当前帧中发生错误时，基于预定标准，选择频域中的错误隐藏和时域中的错误隐藏中的一个作为当前帧的错误隐藏方案，选择 重复方案和在频域中的内插方案作为当前帧的错误隐藏方案，当选择频域中的错误隐藏时，基于预定标准，并且使用所选择的方案来隐藏当前帧的错误。

公开(公告)号：US20070299656A1

公开(公告)日：2007-12-27

申请号：US11766331

申请日：2007-06-21

Applicant: Chang-yong SON ,  Eun-mi Oh ,  Ki-hyun Choo ,  Jung-hoe Kim

Inventor： Chang-yong SON ,  Eun-mi Oh ,  Ki-hyun Choo ,  Jung-hoe Kim

IPC: G10L19/14 ,  G10L21/00

CPC classification number: G10L21/038

Abstract: Provided are a method and apparatus for encoding and decoding an audio signal. According to the present application, a signal of a high frequency band above a preset frequency band is adaptively encoded or decoded in the time domain or in the frequency domain by using a signal of a low frequency band below the preset frequency band. As such, the sound quality of a high frequency signal is not deteriorate even when an audio signal is encoded or decoded by using a small number of bits and thus coding efficiency may be maximized.

Abstract translation: 提供了一种用于对音频信号进行编码和解码的方法和装置。 根据本申请，通过使用低于预设频带的低频信号，在时域或频域中自适应地编码或解码高于预置频带的高频带的信号。 因此，即使当通过使用少量位来对音频信号进行编码或解码时，高频信号的声音质量也不会恶化，从而可以使编码效率最大化。