公开(公告)号：US20110022383A1

公开(公告)日：2011-01-27

申请号：US12935390

申请日：2009-03-31

申请人： Sung Il Jung ,  Dong Gyung Ha

发明人： Sung Il Jung ,  Dong Gyung Ha

IPC分类号： G10L21/02

CPC分类号： G10L21/0208 ,  G10L21/0216

摘要： A sound quality improvement method for a noisy speech signal according to an embodiment of the present invention comprises the steps of estimating a noise signal of an input noisy speech signal by performing a predetermined noise estimation procedure for the noisy speech signal; measuring a relative magnitude difference to represent a relative difference between the noisy speech signal and the estimated noise signal; calculating a modified overweighting gain function with a non-linear structure in which a relatively high gain is allocated to a low-frequency band than a high-frequency band by using the relative magnitude difference; and obtaining an enhanced speech signal by multiplying the noisy speech signal and a time-varying gain function obtained by using the overweighting gain function. Accordingly, the amount of calculation for noise estimation is small, and large-capacity memory is not required. Furthermore, the present invention can be easily implemented in hardware or software, and the accuracy of noise estimation can be increase because an adaptive procedure can be performed on each frequency sub-band.

摘要翻译： 根据本发明的实施例的用于噪声语音信号的音质改进方法包括以下步骤：通过对噪声语音信号执行预定的噪声估计过程来估计输入噪声语音信号的噪声信号; 测量相对幅度差以表示噪声语音信号和估计噪声信号之间的相对差; 通过使用所述相对幅度差，以非线性结构计算修正的超重增益函数，其中通过使用所述相对幅度差将相对高的增益分配给比所述高频带的低频带; 以及通过将噪声语音信号与通过使用超重增益函数获得的时变增益函数相乘来获得增强语音信号。 因此，噪声估计的计算量小，不需要大容量存储器。 此外，本发明可以容易地在硬件或软件中实现，并且可以增加噪声估计的精度，因为可以对每个频率子带执行自适应过程。

公开(公告)号：US6042649A

公开(公告)日：2000-03-28

申请号：US900355

申请日：1997-07-25

申请人： Kyung-suu Song ,  Tae-sin Park ,  Tae-un Lim ,  Sung-il Jung

发明人： Kyung-suu Song ,  Tae-sin Park ,  Tae-un Lim ,  Sung-il Jung

IPC分类号： B05C11/10 ,  B67D7/02 ,  B67D7/76 ,  H01L21/00 ,  H01L21/027 ,  H01L21/31 ,  H01L21/312 ,  B05C11/00

CPC分类号： B67D7/0238 ,  B67D7/763 ,  H01L21/6715 ,  H01L21/67242

摘要： A polyimide coating device includes a bubble sensor for sensing the supply of a polyimide from a main polyimide storage tank. The coating device also includes an auxiliary storage tank filled with a predetermined amount of polyimide at all the times. A discharge pipe is connected to the auxiliary storage tank such that any gas introduced into a supply pipe between the main storage tank and the auxiliary storage tank is easily discharged prior to the polyimide entering a reaction chamber.

摘要翻译： 聚酰亚胺涂覆装置包括用于感测从聚酰亚胺储存箱供应聚酰亚胺的气泡传感器。 涂覆装置还包括一直充满预定量的聚酰亚胺的辅助储罐。 排出管连接到辅助储罐，使得在聚酰亚胺进入反应室之前，引入主储罐和辅助储罐之间的供给管中的任何气体容易排出。

公开(公告)号：US08744845B2

公开(公告)日：2014-06-03

申请号：US12935124

申请日：2009-03-31

申请人： Sung Il Jung ,  Dong Gyung Ha

发明人： Sung Il Jung ,  Dong Gyung Ha

IPC分类号： G10L21/00

CPC分类号： G10L25/48 ,  G10L21/0208

摘要： A noise estimation method for a noisy speech signal according to an embodiment of the present invention includes the steps of approximating a transformation spectrum by transforming an input noisy speech signal to a frequency domain, calculating a smoothed magnitude spectrum having a decreased difference in a magnitude of the transformation spectrum between neighboring frames, calculating a search spectrum to represent an estimated noise component of the smoothed magnitude spectrum, and estimating a noise spectrum by using a recursive average method using an adaptive forgetting factor defined by using the search spectrum. According to an embodiment of the present invention, the amount of calculation for noise estimation is small, and large-capacity memory is not required. Accordingly, the present invention can be easily implemented in hardware or software. Further, the accuracy of noise estimation can be increase because an adaptive procedure can be performed on each frequency sub-band.

摘要翻译： 根据本发明实施例的用于噪声语音信号的噪声估计方法包括以下步骤：通过将输入噪声语音信号变换为频域来近似变换频谱，计算具有减小的幅度差的幅度频谱 相邻帧之间的变换频谱，计算搜索频谱以表示平滑幅度谱的估计噪声分量，以及通过使用使用搜索频谱定义的自适应遗忘因子的递归平均方法来估计噪声谱。 根据本发明的实施例，噪声估计的计算量小，不需要大容量存储器。 因此，本发明可以容易地以硬件或软件实现。 此外，可以增加噪声估计的精度，因为可以对每个频率子带执行自适应过程。

公开(公告)号：US08694311B2

公开(公告)日：2014-04-08

申请号：US12935390

申请日：2009-03-31

申请人： Sung Il Jung ,  Dong Gyung Ha

发明人： Sung Il Jung ,  Dong Gyung Ha

IPC分类号： G10L21/02

CPC分类号： G10L21/0208 ,  G10L21/0216

摘要： A sound quality improvement method for a noisy speech signal according to an embodiment of the present invention comprises the steps of estimating a noise signal of an input noisy speech signal by performing a predetermined noise estimation procedure for the noisy speech signal; measuring a relative magnitude difference to represent a relative difference between the noisy speech signal and the estimated noise signal; calculating a modified overweighting gain function with a non-linear structure in which a relatively high gain is allocated to a low-frequency band than a high-frequency band by using the relative magnitude difference; and obtaining an enhanced speech signal by multiplying the noisy speech signal and a time-varying gain function obtained by using the overweighting gain function. Accordingly, the amount of calculation for noise estimation is small, and large-capacity memory is not required. Furthermore, the present invention can be easily implemented in hardware or software, and the accuracy of noise estimation can be increase because an adaptive procedure can be performed on each frequency sub-band.

摘要翻译： 根据本发明的实施例的用于噪声语音信号的音质改进方法包括以下步骤：通过对噪声语音信号执行预定的噪声估计过程来估计输入噪声语音信号的噪声信号; 测量相对幅度差以表示噪声语音信号和估计噪声信号之间的相对差; 通过使用所述相对幅度差，以非线性结构计算修正的超重增益函数，其中通过使用所述相对幅度差将相对高的增益分配给比所述高频带的低频带; 以及通过将噪声语音信号与通过使用超重增益函数获得的时变增益函数相乘来获得增强语音信号。 因此，噪声估计的计算量小，不需要大容量存储器。 此外，本发明可以容易地在硬件或软件中实现，并且可以增加噪声估计的精度，因为可以对每个频率子带执行自适应过程。

公开(公告)号：US20110029310A1

公开(公告)日：2011-02-03

申请号：US12935339

申请日：2008-11-27

申请人： Sung Il Jung ,  Dong Gyung Ha

发明人： Sung Il Jung ,  Dong Gyung Ha

IPC分类号： G10L15/20

CPC分类号： G10L21/0208 ,  G10L15/20

摘要： Provided are a noise state determination method and an apparatus and a computer readable recording medium therefor. A noisy speech signal processing method according to the present invention includes calculating a transformed spectrum by transforming an input noisy speech signal to a frequency domain; calculating a smoothed magnitude spectrum by reducing magnitude differences of the transformed spectrum between neighboring frames; calculating a search spectrum which represents an estimated noise component of the smoothed magnitude spectrum; and calculating an identification ratio which represents a ratio of a noise component included in the input noisy speech signal, by using the smoothed magnitude spectrum and the search spectrum. Since a small amount of calculation is required and a large-capacity memory is not required, the present invention may be easily implemented as hardware or software. Also, since an adaptive operation is performed with respect to each frequency sub-band, the accuracy of determining a noise state may be improved.

摘要翻译： 提供了一种噪声状态确定方法及其装置和计算机可读记录介质。 根据本发明的噪声语音信号处理方法包括：通过将输入噪声语音信号变换为频域来计算变换频谱; 通过减小相邻帧之间的变换频谱的幅度差来计算平滑幅度谱; 计算表示平滑幅度谱的估计噪声分量的搜索频谱; 以及通过使用平滑的幅度谱和搜索光谱来计算表示包括在输入噪声语音信号中的噪声分量的比率的识别率。 由于需要少量计算并且不需要大容量存储器，因此本发明可以容易地实现为硬件或软件。 此外，由于对于每个频率子带执行自适应操作，因此可以提高确定噪声状态的精度。

公开(公告)号：US20100023327A1

公开(公告)日：2010-01-28

申请号：US12515806

申请日：2007-11-21

申请人： Sung Il Jung ,  Young Hun Kwon ,  Sung Il Yang

发明人： Sung Il Jung ,  Young Hun Kwon ,  Sung Il Yang

IPC分类号： G10L19/14

CPC分类号： G10L21/0208 ,  G10L25/27

摘要： The present invention relates to speech enhancement accomplished by applying an overweighting gain of a nonlinear structure in a wavelet packet transform domain or a Fourier transform domain. The present invention relates to a method for improving quality of speech signals, which can be applied in a variety of noise-level conditions using noise estimation of the least-square line method and a modified spectral subtraction method having a nonlinear overweighting gain for each sub-band. According to the method for improving quality of speech of the present invention, it is effective in that quality of speech can be further effectively improved in a variety of noise-level conditions. Particularly, according to the present invention, generation of musical tones can be efficiently suppressed, and intelligibility of speech is reliably guaranteed in the improved speech.

摘要翻译： 本发明涉及通过在小波包变换域或傅立叶变换域中应用非线性结构的超重增益而实现的语音增强。 本发明涉及一种用于提高语音信号质量的方法，其可以使用最小二乘法方法的噪声估计在各种噪声级条件下应用，并且对于每个子级具有非线性超重增益的修改频谱减法方法 -带。 根据本发明的提高语音质量的方法，能够在各种噪声级条件下进一步有效地提高语音质量是有效的。 特别地，根据本发明，可以有效地抑制音调的产生，并且在改进的语音中可靠地保证语音的可懂度。

公开(公告)号：US5931876A

公开(公告)日：1999-08-03

申请号：US872735

申请日：1997-06-11

申请人： Sung-Il Jung

发明人： Sung-Il Jung

IPC分类号： G05F1/02 ,  G05D1/02 ,  B62D5/20

CPC分类号： G05D1/0265

摘要： A tracking control circuit for directly controlling the tracking (i.e., the steering) of an automatic guide vehicle (AGV) without utilizing a central processing unit (CPU) for control. The circuit controls the tracking of the AGV by comparing a first induced voltage with a second induced voltage to sense the tracking state (i.e., whether the AGV is veering right or left of the appropriate path), and then providing to a servo interface board either a voltage obtained by subtracting a reference voltage from the first induced voltage or a voltage obtained by subtracting the second induced voltage from the reference voltage. Which voltage is provided is determined in accordance with the sensed result of the tracking state.

摘要翻译： 一种跟踪控制电路，用于直接控制自动导向车辆（AGV）的跟踪（即转向），而不用中央处理单元（CPU）进行控制。 该电路通过将第一感应电压与第二感应电压进行比较来控制AGV的跟踪，以感测跟踪状态（即，AGV是否正在左右适当的路径），然后提供给伺服接口板 通过从第一感应电压减去参考电压或通过从参考电压减去第二感应电压而获得的电压获得的电压。 根据检测到的跟踪状态的结果确定提供哪个电压。

公开(公告)号：US09225315B2

公开(公告)日：2015-12-29

申请号：US13581292

申请日：2011-02-28

申请人： Sang-Won Nam ,  Kyoung-Jae Kim ,  Sung-Il Jung

发明人： Sang-Won Nam ,  Kyoung-Jae Kim ,  Sung-Il Jung

IPC分类号： G06F17/10 ,  H03H17/02

CPC分类号： H03H17/0294

摘要： A digital filter having improved attenuation characteristics is disclosed. The disclosed performs upsampling of model filter response by applying a sampling kernel scaled by a sampling constant. The disclosed filter has good attenuation characteristics with small number of taps and pass bands of the digital filter can be changed with simple parameter variation.

摘要翻译： 公开了一种具有改进的衰减特性的数字滤波器。 所公开的通过应用由采样常数缩放的采样内核来执行模型滤波器响应的上采样。 所公开的滤波器具有良好的衰减特性，具有少量抽头，数字滤波器的通带可以通过简单的参数变化来改变。

公开(公告)号：US08744846B2

公开(公告)日：2014-06-03

申请号：US12935339

申请日：2008-11-27

申请人： Sung Il Jung ,  Dong Gyung Ha

发明人： Sung Il Jung ,  Dong Gyung Ha

IPC分类号： G10L21/00

CPC分类号： G10L21/0208 ,  G10L15/20

摘要： Provided are a noise state determination method and an apparatus and a computer readable recording medium therefor. A noisy speech signal processing method according to the present invention includes calculating a transformed spectrum by transforming an input noisy speech signal to a frequency domain; calculating a smoothed magnitude spectrum by reducing magnitude differences of the transformed spectrum between neighboring frames; calculating a search spectrum which represents an estimated noise component of the smoothed magnitude spectrum; and calculating an identification ratio which represents a ratio of a noise component included in the input noisy speech signal, by using the smoothed magnitude spectrum and the search spectrum. Since a small amount of calculation is required and a large-capacity memory is not required, the present invention may be easily implemented as hardware or software. Also, since an adaptive operation is performed with respect to each frequency sub-band, the accuracy of determining a noise state may be improved.

摘要翻译： 提供了一种噪声状态确定方法及其装置和计算机可读记录介质。 根据本发明的噪声语音信号处理方法包括：通过将输入噪声语音信号变换为频域来计算变换频谱; 通过减小相邻帧之间的变换频谱的幅度差来计算平滑幅度谱; 计算表示平滑幅度谱的估计噪声分量的搜索频谱; 以及通过使用平滑的幅度谱和搜索光谱来计算表示包括在输入噪声语音信号中的噪声分量的比率的识别率。 由于需要少量计算并且不需要大容量存储器，因此本发明可以容易地实现为硬件或软件。 此外，由于对于每个频率子带执行自适应操作，因此可以提高确定噪声状态的精度。

公开(公告)号：US20130110897A1

公开(公告)日：2013-05-02

申请号：US13581292

申请日：2011-02-28

申请人： Sang-Won Nam ,  Kyoung-Jae Kim ,  Sung-Il Jung

发明人： Sang-Won Nam ,  Kyoung-Jae Kim ,  Sung-Il Jung

IPC分类号： G06F17/10

CPC分类号： H03H17/0294

摘要： A digital filter having improved attenuation characteristics is disclosed. The disclosed performs upsampling of model filter response by applying a sampling kernel scaled by a sampling constant. The disclosed filter has good attenuation characteristics with small number of taps and pass bands of the digital filter can be changed with simple parameter variation.

摘要翻译： 公开了一种具有改进的衰减特性的数字滤波器。 所公开的通过应用由采样常数缩放的采样内核来执行模型滤波器响应的上采样。 所公开的滤波器具有良好的衰减特性，具有少量抽头，数字滤波器的通带可以通过简单的参数变化来改变。