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86 条记录 (耗时 0.032 秒)

    METHOD, MEDIUM, AND SYSTEM ENCODING/DECODING MULTI-CHANNEL SIGNAL
    31.
    发明申请
    METHOD, MEDIUM, AND SYSTEM ENCODING/DECODING MULTI-CHANNEL SIGNAL 有权
    方法，介质和系统编码/解码多通道信号

    公开(公告)号：US20120288099A1

    公开(公告)日：2012-11-15

    申请号：US13557848

    申请日：2012-07-25

    申请人： Jung-hoe KIM ,  Eun-mi Oh ,  Konstantly Osipov ,  Ki-hyun Choo

    发明人： Jung-hoe KIM ,  Eun-mi Oh ,  Konstantly Osipov ,  Ki-hyun Choo

    IPC分类号： H04R5/00

    CPC分类号： H04H40/36 ,  G10L19/008 ,  H04H20/47 ,  H04H20/88

    摘要： A multi-channel signal decoding method is provided. A down-mixed signal representative of a multi-channel signal is decoded, and parameters representing characteristic relations between channels of the multi-channel signal are decoded. An additional parameter is estimated by using the decoded parameters, and the decoded down-mixed signal is up-mixed by using the decoded parameters and the estimated parameter so as to decode the multi-channel signal.

    摘要翻译： 提供了一种多通道信号解码方法。 解码表示多声道信号的下混信号，并对表示多声道信号的声道之间的特征关系的参数进行解码。 通过使用解码参数来估计附加参数，并且通过使用解码参数和估计参数对解码的下混合信号进行混合，以解码多声道信号。

    Method, medium, and system encoding/decoding multi-channel signal
    32.
    发明授权
    Method, medium, and system encoding/decoding multi-channel signal 有权
    方法，中，系统编码/解码多通道信号

    公开(公告)号：US08254584B2

    公开(公告)日：2012-08-28

    申请号：US12107117

    申请日：2008-04-22

    申请人： Jung-hoe Kim ,  Eun-mi Oh ,  Konstantly Osipov ,  Ki-hyun Choo

    发明人： Jung-hoe Kim ,  Eun-mi Oh ,  Konstantly Osipov ,  Ki-hyun Choo

    IPC分类号： H04H20/47

    CPC分类号： H04H40/36 ,  G10L19/008 ,  H04H20/47 ,  H04H20/88

    摘要： A multi-channel signal decoding method is provided. A down-mixed signal representative of a multi-channel signal is decoded, and parameters representing characteristic relations between channels of the multi-channel signal are decoded. An additional parameter is estimated by using the decoded parameters, and the decoded down-mixed signal is up-mixed by using the decoded parameters and the estimated parameter so as to decode the multi-channel signal.

    摘要翻译： 提供了一种多通道信号解码方法。 解码表示多声道信号的下混信号，并对表示多声道信号的声道之间的特征关系的参数进行解码。 通过使用解码参数来估计附加参数，并且通过使用解码参数和估计参数对解码的下混合信号进行混合，以解码多声道信号。

    Audio signal encoding/decoding method and apparatus
    34.
    发明授权
    Audio signal encoding/decoding method and apparatus 失效
    音频信号编码/解码方法和装置

    公开(公告)号：US08032362B2

    公开(公告)日：2011-10-04

    申请号：US11867218

    申请日：2007-10-04

    申请人： Ki-hyun Choo ,  Eun-mi Oh ,  Jung-hoe Kim ,  Konstantin Osipov ,  Sergey Petrov

    发明人： Ki-hyun Choo ,  Eun-mi Oh ,  Jung-hoe Kim ,  Konstantin Osipov ,  Sergey Petrov

    IPC分类号： G10L19/00

    CPC分类号： G10L21/038 ,  G10L19/008 ,  G10L19/0212 ,  G10L19/24

    摘要： Provided is an audio signal encoding method including transforming an input signal from a time domain to a time/frequency domain using a first transformation method, extracting a stereo parameter from a signal of the time/frequency domain, encoding the stereo parameter, and down-mixing the signal of the time/frequency domain, transforming each of sub-bands of the down-mixed signal to a frequency domain by using a second transformation method, and encoding the signal of the frequency domain in the frequency domain.

    摘要翻译： 提供了一种音频信号编码方法，包括使用第一变换方法将输入信号从时域变换为时域/频域，从时域/频域的信号中提取立体声参数，对立体声参数进行编码， 混合时间/频域的信号，通过使用第二变换方法将下混合信号的每个子频带变换为频域，并对频域中的频域的信号进行编码。

    Adaptive encoding and decoding with forward linear prediction
    35.
    发明授权
    Adaptive encoding and decoding with forward linear prediction 有权
    具有前向线性预测的自适应编码和解码

    公开(公告)号：US08010348B2

    公开(公告)日：2011-08-30

    申请号：US11774664

    申请日：2007-07-09

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

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

    IPC分类号： G10L19/02 ,  G10L19/04 ,  G10L19/08

    CPC分类号： G10L19/18 ,  G10L19/0212 ,  G10L19/06 ,  G10L19/09 ,  G10L19/20 ,  G10L25/18

    摘要： An adaptive encoding method includes splitting an input signal into a low-frequency band signal and a high-frequency band signal; performing forward adaptive linear prediction on the low-frequency band signal and thus filtering the low-frequency band signal; selectively performing backward adaptive linear prediction or long-term prediction on the filtered low-frequency band signal according to the analysis result of the low-frequency band signal; transforming the low-frequency band signal, on which backward adaptive linear prediction or long-term prediction has been performed, into a signal in a frequency domain and quantizing the signal; and encoding the high-frequency band signal using the low-frequency band signal, on which backward adaptive linear prediction or long-term prediction has been performed, or the quantized signal. Therefore, compression efficiency of both speech and music signals can be enhanced, and a robust compression method can be provided for various audio contents at a low bit rate.

    摘要翻译： 一种自适应编码方法，包括将输入信号分成低频带信号和高频带信号; 对低频带信号执行前向自适应线性预测，从而对低频带信号进行滤波; 根据低频带信号的分析结果，对经滤波的低频带信号选择性地执行反向自适应线性预测或长期预测; 将已经进行了反向自适应线性预测或长期预测的低频带信号变换为频域中的信号并量化信号; 并且使用已经执行了反向自适应线性预测或长期预测的低频带信号或量化信号对高频带信号进行编码。 因此，可以提高语音和音乐信号的压缩效率，并且可以以低比特率为各种音频内容提供鲁棒的压缩方法。

    Method and apparatus to encode and/or decode signal using bandwidth extension technology
    36.
    发明授权
    Method and apparatus to encode and/or decode signal using bandwidth extension technology 有权
    使用带宽扩展技术对信号进行编码和/或解码的方法和装置

    公开(公告)号：US07864843B2

    公开(公告)日：2011-01-04

    申请号：US11757528

    申请日：2007-06-04

    申请人： Ki-hyun Choo ,  Jung-hoe Kim ,  Eun-mi Oh ,  Miao Lei ,  Chang-yong Son

    发明人： Ki-hyun Choo ,  Jung-hoe Kim ,  Eun-mi Oh ,  Miao Lei ,  Chang-yong Son

    IPC分类号： H04N11/02 ,  G10L13/00

    CPC分类号： G10L19/0208 ,  G10L21/038

    摘要： A method and apparatus to perform bandwidth extension encoding and decoding encodes and/or decodes a high frequency signal using an excitation signal for a low frequency signal encoded in a time domain or a frequency domain or using an excitation spectrum for the low frequency signal. Accordingly, although an audio signal is encoded or decoded using a small number of bits, the quality of sound corresponding to a signal in a high frequency band does not degrade. Therefore, a coding efficiency of the audio signal can be maximized.

    摘要翻译： 执行带宽扩展编码和解码的方法和装置使用用于在时域或频域中编码的低频信号的激励信号或者使用低频信号的激励频谱对高频信号进行编码和/或解码。 因此，尽管使用少量的比特对音频信号进行编码或解码，但是与高频带中的信号相对应的声音质量不会降低。 因此，可以使音频信号的编码效率最大化。

    Scalable encoding and/or decoding method and apparatus
    37.
    发明授权
    Scalable encoding and/or decoding method and apparatus 有权
    可扩展编码和/或解码方法和装置

    公开(公告)号：US07750829B2

    公开(公告)日：2010-07-06

    申请号：US12061028

    申请日：2008-04-02

    申请人： Jung-hoe Kim ,  Eun-mi Oh ,  Ki-hyun Choo ,  Boris Kudryashov ,  Olga Prokofyeva

    发明人： Jung-hoe Kim ,  Eun-mi Oh ,  Ki-hyun Choo ,  Boris Kudryashov ,  Olga Prokofyeva

    IPC分类号： H03M7/40

    CPC分类号： G10L19/24 ,  G10L19/0017 ,  H04N19/13 ,  H04N19/1887 ,  H04N19/37

    摘要： A method and apparatus to scalably encode or decode an audio signal or a video signal. A signal distribution is considered after binarization is performed based on a tree structure. Thus, a decoding end can minimize generation of quantization errors and restore an original signal. In addition, only frequency components perceptually important in terms of human hearing are set to an upper layer and encoded without decreasing a bandwidth which is restored from an upper layer. Therefore, sound quality can be increased by decreasing quantization noise while maintaining a relatively large frequency bandwidth, and the degradation of a compression performance is prevented.

    摘要翻译： 一种用于可缩放地编码或解码音频信号或视频信号的方法和装置。 在基于树结构执行二值化之后考虑信号分布。 因此，解码端可以最小化量化误差的产生并恢复原始信号。 此外，只有在人听觉上感知重要的频率分量被设置为上层，并且在不减少从上层恢复的带宽的情况下进行编码。 因此，通过降低量化噪声同时维持相对较大的频率带宽可以提高声音质量，并且防止压缩性能的劣化。

    SCALABLE ENCODING AND/OR DECODING METHOD AND APPARATUS
    39.
    发明申请
    SCALABLE ENCODING AND/OR DECODING METHOD AND APPARATUS 有权
    可编程和/或解码方法和装置

    公开(公告)号：US20090073008A1

    公开(公告)日：2009-03-19

    申请号：US12061028

    申请日：2008-04-02

    申请人： Jung-hoe KIM ,  Eun-mi Oh ,  Ki-hyun Choo ,  Boris Kudryashov ,  Olga Prokofyeva

    发明人： Jung-hoe KIM ,  Eun-mi Oh ,  Ki-hyun Choo ,  Boris Kudryashov ,  Olga Prokofyeva

    IPC分类号： H03M7/40

    CPC分类号： G10L19/24 ,  G10L19/0017 ,  H04N19/13 ,  H04N19/1887 ,  H04N19/37

    摘要： A method and apparatus to scalably encode or decode an audio signal or a video signal. A signal distribution is considered after binarization is performed based on a tree structure. Thus, a decoding end can minimize generation of quantization errors and restore an original signal. In addition, only frequency components perceptually important in terms of human hearing are set to an upper layer and encoded without decreasing a bandwidth which is restored from an upper layer. Therefore, sound quality can be increased by decreasing quantization noise while maintaining a relatively large frequency bandwidth, and the degradation of a compression performance is prevented.

    摘要翻译： 一种用于可缩放地编码或解码音频信号或视频信号的方法和装置。 在基于树结构执行二值化之后考虑信号分布。 因此，解码端可以最小化量化误差的产生并恢复原始信号。 此外，只有在人听觉上感知重要的频率分量被设置为上层，并且在不减少从上层恢复的带宽的情况下进行编码。 因此，通过降低量化噪声同时维持相对较大的频率带宽可以提高声音质量，并且防止压缩性能的劣化。