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    • 6. 发明申请
    • CONTROL SYSTEM FOR ROTATING SHAFT
    • 旋转轴控制系统
    • US20130069581A1
    • 2013-03-21
    • US13604167
    • 2012-09-05
    • Yong-Seob LIMSeung-Jin CHOI
    • Yong-Seob LIMSeung-Jin CHOI
    • G05B11/36
    • G05B11/36
    • A rotating element control system includes a rotating element rotatably disposed on a main body, a first sensing unit which senses a rotational speed of the main body, a driving unit which drives the rotating element, a second sensing unit which senses a rotational speed of the rotating element, a torque compensation unit which generates a first compensation signal within a first range and a second compensation signal within a second range, and a stabilization control unit which controls the driving unit based on the first and second compensation signals and a difference between a speed of a command to drive the rotating element and the rotational speed of the rotating element.
    • 旋转元件控制系统包括可旋转地设置在主体上的旋转元件,感测主体旋转速度的第一感测单元,驱动旋转元件的驱动单元,感测旋转元件的转速的第二感测单元 旋转元件,在第一范围内产生第一补偿信号的扭矩补偿单元和在第二范围内的第二补偿信号的稳定控制单元,以及基于第一和第二补偿信号来控制驱动单元的稳定控制单元, 用于驱动旋转元件的命令的速度和旋转元件的旋转速度。
    • 7. 发明授权
    • Convolutive blind source separation using relative optimization
    • 卷积盲源分离使用相对优化
    • US07738574B2
    • 2010-06-15
    • US11478212
    • 2006-06-29
    • In-Seon JangKi-Joeng NamHee-Youl ChoiSeung-Jin ChoiKyeong-Ok Kang
    • In-Seon JangKi-Joeng NamHee-Youl ChoiSeung-Jin ChoiKyeong-Ok Kang
    • H04B1/10
    • G06K9/6243G06K9/6245
    • A method and apparatus for separating a multi-channel mixed signal are provided. The method includes the steps of: a) transforming a temporal domain to a frequency domain by performing a discrete Fourier transform onto at least one of mixed signals inputted from an external device through multi-channel; b) estimating multi-decorrelation by calculating a plurality of cross power spectra for the mixed signal in the transformed frequency domain; c) estimating a separation coefficient of the mixed signal based on relative optimization in order to decorrelate the calculated cross power spectra, where the separation coefficient is serially updated; d) transforming the frequency domain to the temporal domain by performing an inverse discrete Fourier transform on the estimated separation coefficient in the temporal domain; and e) separating an original signal from the mixed signal by filtering the mixed signal using the separation coefficient of the transformed temporal domain.
    • 提供了一种用于分离多通道混合信号的方法和装置。 该方法包括以下步骤:a)通过对通过多信道从外部设备输入的混合信号中的至少一个进行离散付里叶变换,将时域转换为频域; b)通过计算变换频域中的混合信号的多个交叉功率谱来估计多重相关; c)基于相对优化来估计混合信号的分离系数,以便将所计算的交叉功率谱解相关,其中分离系数被连续更新; d)通过对时域中估计的分离系数执行逆离散傅立叶变换,将频域变换到时域; 以及e)使用所述变换的时域的分离系数对所述混合信号进行滤波,从所述混合信号中分离原始信号。
    • 8. 发明申请
    • Convolutive blind source separation using relative optimization
    • 卷积盲源分离使用相对优化
    • US20070058737A1
    • 2007-03-15
    • US11478212
    • 2006-06-29
    • In-Seon JangKi-Joeng NamHee-Youl ChoiSeung-Jin ChoiKyeong-Ok Kang
    • In-Seon JangKi-Joeng NamHee-Youl ChoiSeung-Jin ChoiKyeong-Ok Kang
    • H04K1/10H04L27/06
    • G06K9/6243G06K9/6245
    • A method and apparatus for separating a multi-channel mixed signal are provided. The method includes the steps of: a) transforming a temporal domain to a frequency domain by performing a discrete Fourier transform onto at least one of mixed signals inputted from an external device through multi-channel; b) estimating multi-decorrelation by calculating a plurality of cross power spectra for the mixed signal in the transformed frequency domain; c) estimating a separation coefficient of the mixed signal based on relative optimization in order to decorrelate the calculated cross power spectra, where the separation coefficient is serially updated; d) transforming the frequency domain to the temporal domain by performing an inverse discrete Fourier transform on the estimated separation coefficient in the temporal domain; and e) separating an original signal from the mixed signal by filtering the mixed signal using the separation coefficient of the transformed temporal domain.
    • 提供了一种用于分离多通道混合信号的方法和装置。 该方法包括以下步骤:a)通过对通过多信道从外部设备输入的混合信号中的至少一个进行离散付里叶变换,将时域转换为频域; b)通过计算变换频域中的混合信号的多个交叉功率谱来估计多重相关; c)基于相对优化来估计混合信号的分离系数,以便将所计算的交叉功率谱解相关,其中分离系数被连续更新; d)通过对时域中估计的分离系数执行逆离散傅立叶变换,将频域变换到时域; 以及e)使用所述变换的时域的分离系数对所述混合信号进行滤波,从所述混合信号中分离原始信号。