公开(公告)号：US20120140940A1

公开(公告)日：2012-06-07

申请号：US13216698

申请日：2011-08-24

申请人： In Ki HWANG ,  Chang Y. CHOO ,  Do Young KIM ,  Byung Sun LEE

发明人： In Ki HWANG ,  Chang Y. CHOO ,  Do Young KIM ,  Byung Sun LEE

IPC分类号： G10K11/16

CPC分类号： H04M9/082 ,  G10L2021/02082

摘要： An acoustic control device for generating a pseudo echo signal by filtering an input remote speaker signal by using a plurality of adaptive filters and controlling the adaptive filters to perform filtering based on filter coefficients generates an error signal by subtracting a pseudo echo signal from an input nearby speaker signal, determines a convergence state of the filter coefficient based on the error signal, and controls the width of data input to the adaptive filter when the filter coefficient is determined to be converged

摘要翻译： 一种用于通过使用多个自适应滤波器对输入的远程扬声器信号进行滤波并且基于滤波器系数控制自适应滤波器来执行滤波来产生伪回波信号的声控装置，通过从附近的输入端减去伪回波信号来产生误差信号 扬声器信号，基于误差信号确定滤波器系数的收敛状态，并且当滤波器系数被确定为收敛时，控制输入到自适应滤波器的数据的宽度

公开(公告)号：US08037214B2

公开(公告)日：2011-10-11

申请号：US11932718

申请日：2007-10-31

申请人： In Ki Hwang ,  Woo Sug Jung ,  Do Young Kim

发明人： In Ki Hwang ,  Woo Sug Jung ,  Do Young Kim

IPC分类号： G06F13/28 ,  H04L12/56

CPC分类号： G06F13/32

摘要： Provided are a method and apparatus for controlling direct memory access. In the method, data to be transmitted are read and stored in response to a direct memory access controller (DMAC) operation request, and a portion of the data corresponding to an initial burst size is first transmitted to a data destination. After resetting a burst size according to a state of the data destination, another portion of the data corresponding to the reset burst size is second-transmitted to the data destination. If all the data are not transmitted through the first-transmission and the second-transmission, the second-transmission is repeated until all the data are transmitted. If all the data are transmitted through the first-transmission and the second-transmission, an interrupt signal is generated. Therefore, interrupt signals can be less generated, and thus the processor can access an external memory less frequently, thereby increasing system performance.

摘要翻译： 提供一种用于控制直接存储器访问的方法和装置。 在该方法中，响应于直接存储器访问控制器（DMAC）操作请求来读取和存储要发送的数据，并且首先将与初始突发大小相对应的数据的一部分发送到数据目的地。 在根据数据目的地的状态复位突发大小之后，与复位突发大小对应的数据的另一部分被第二次发送到数据目的地。 如果所有的数据都不是通过第一次传输和第二次传输传输的，那么重复第二次传输，直到所有的数据被发送。 如果通过第一次传输和第二次传输传输所有数据，则产生一个中断信号。 因此，可以较少地产生中断信号，因此处理器可以较少地访问外部存储器，从而提高系统性能。

公开(公告)号：US20100233371A1

公开(公告)日：2010-09-16

申请号：US12565235

申请日：2009-09-23

申请人： Yool Koo Kim ,  In Ki Hwang ,  Sung Moon Choi ,  In Woong Lyo ,  Seung Gyun Ahn ,  Joong Soo Kim ,  Dae Soon Lim ,  Joon Sung Park

发明人： Yool Koo Kim ,  In Ki Hwang ,  Sung Moon Choi ,  In Woong Lyo ,  Seung Gyun Ahn ,  Joong Soo Kim ,  Dae Soon Lim ,  Joon Sung Park

IPC分类号： B05D3/12 ,  C08F8/00 ,  B05D3/02

CPC分类号： B05D5/083 ,  B05D2601/20 ,  C09D127/18 ,  F02F3/10 ,  F16J1/02

摘要： Disclosed is a polytetrafluoroethylene coating agent having low friction and high wear resistance, obtained by dispersing nanodiamond powder in a polar organic solvent, stirring the nanodiamond dispersion solution and a silane coupling agent, and stirring the silane-treated dispersion solution and an oily polytetrafluoroethylene coating solution, in which the silane coupling agent has at least one organic functional group selected from, but not limited to, a mercapto group and an amino group, the organic functional group exhibiting high bondability to polytetrafluoroethylene. A method of preparing the polytetrafluoroethylene coating agent and a method of using the polytetrafluoroethylene coating agent are also provided.

摘要翻译： 公开了通过将纳米金刚石粉末分散在极性有机溶剂中，搅拌纳米金刚石分散液和硅烷偶联剂，并将硅烷处理的分散液和油性聚四氟乙烯涂布溶液 其中硅烷偶联剂具有至少一种选自但不限于巯基和氨基的有机官能团，该有机官能团对聚四氟乙烯具有高粘合性。 还提供了制备聚四氟乙烯涂层剂的方法和使用聚四氟乙烯涂层剂的方法。

公开(公告)号：US20050087168A1

公开(公告)日：2005-04-28

申请号：US10750668

申请日：2003-12-31

申请人： In-Ki Hwang

发明人： In-Ki Hwang

IPC分类号： F01L1/04 ,  F01L1/08 ,  F01L1/26 ,  F02B19/02 ,  F02B19/10 ,  F02B23/04 ,  F02B41/04 ,  F02D13/02 ,  F02F1/00 ,  F01L1/34

CPC分类号： F02B19/02 ,  F02B41/04 ,  Y02T10/125

摘要： A two-step combustion system configured to install an auxiliary combustion chamber at the upper lateral surface of the combustion chamber and to store some of the compressed fuel-air mixture in the auxiliary combustion chamber to allow the fuel-air mixture to be burnt again after the middle of an explosion stroke, thereby reducing the fluctuation range of the rotational force of a crankshaft.

摘要翻译： 一种两级燃烧系统，其被构造成在燃烧室的上侧表面处安装辅助燃烧室，并将一些压缩的燃料 - 空气混合物储存在辅助燃烧室中，以允许燃料 - 空气混合物再次燃烧 在爆炸行程的中间，从而减小曲轴的旋转力的波动范围。

公开(公告)号：US20120140939A1

公开(公告)日：2012-06-07

申请号：US13216444

申请日：2011-08-24

申请人： In Ki HWANG ,  Chang Y. CHOO ,  Do Young KIM ,  Byung Sun LEE

发明人： In Ki HWANG ,  Chang Y. CHOO ,  Do Young KIM ,  Byung Sun LEE

IPC分类号： H04B3/23

CPC分类号： H04M9/082

摘要： An acoustic echo cancellation device for generating a pseudo echo signal by filtering an input remote speaker signal based on a plurality of adaptive filters and controlling the adaptive filters to filter the same based on a filter coefficient. The acoustic echo cancellation device generates an error signal by subtracting the pseudo echo signal from a nearby speaker signal, determines a convergence state of the filter coefficient based on the error signal, and sets at least one filter coefficient with a previously used value to stop the operation for calculating new values for the corresponding filter coefficients when the filter coefficient is determined to be converged.

摘要翻译： 声回声消除装置，用于通过基于多个自适应滤波器对输入的远程扬声器信号进行滤波来产生伪回波信号，并且基于滤波器系数控制自适应滤波器对其进行滤波。 声回波消除装置通过从附近的扬声器信号中减去伪回波信号来产生误差信号，基于误差信号确定滤波器系数的收敛状态，并且设置至少一个具有先前使用的值的滤波器系数，以停止 当滤波器系数被确定为收敛时，用于计算相应滤波器系数的新值的操作。

公开(公告)号：US20110145520A1

公开(公告)日：2011-06-16

申请号：US12951658

申请日：2010-11-22

申请人： In-Ki HWANG ,  Do-Young KIM ,  Hyun-Joo BAE ,  Byung-Sun LEE

发明人： In-Ki HWANG ,  Do-Young KIM ,  Hyun-Joo BAE ,  Byung-Sun LEE

IPC分类号： G06F12/00

CPC分类号： G06F13/4243

摘要： A signal processing technology achieved in a signal processing module, which is physically separate from a control module for controlling overall operations of a signal processing apparatus, is provided. Input of new data to a system memory is recognized. Upon the recognition of the input of the new data, the new data is read from the system memory. The new data read from the system memory is written to a local memory. Data sharing between software and hardware is effectively achieved in a system for performing a wideband codec processing using a dedicated hardware.

摘要翻译： 提供了在信号处理模块中实现的信号处理技术，该信号处理模块在物理上与用于控制信号处理装置的整体操作的控制模块分离。 识别将新数据输入到系统存储器。 在识别到新数据的输入后，从系统存储器读取新的数据。 从系统存储器读取的新数据将写入本地存储器。 在用于使用专用硬件执行宽带编解码处理的系统中，软件和硬件之间的数据共享被有效地实现。

公开(公告)号：US20100262728A1

公开(公告)日：2010-10-14

申请号：US12746565

申请日：2008-10-01

申请人： In-Ki Hwang ,  Do-Young Kim ,  Byung-Sun Lee

发明人： In-Ki Hwang ,  Do-Young Kim ,  Byung-Sun Lee

IPC分类号： G06F13/28

CPC分类号： G06F13/28

摘要： A direct memory access controller (DMAC) for improving data transmission efficiency in multi-media over internet protocol (MMoIP) and a method therefor are provided. The DMAC requests and obtains a bus control right by determining that a DMA request signal is generated not only when a DMA request signal of a module for processing data in MMoIP is received but also when an operation of a timer operating during a predetermined period set considering periodicity of data in MMoIP is completed. Thus, the time taken to request a bus control right in a conventional DMAC can be reduced, thereby improving data transmission efficiency in MMoIP.

摘要翻译： 提供了一种用于提高多媒体互联网协议（MMoIP）的数据传输效率的直接存储器访问控制器（DMAC）及其方法。 DMAC通过确定DMA请求信号不仅在MMoIP中处理数据的模块的DMA请求信号被接收到时产生总线控制权，而且当考虑到在预定时段内运行的定时器操作 MMoIP中的数据周期性完成。 因此，可以减少在常规DMAC中请求总线控制权所需的时间，从而提高MMoIP中的数据传输效率。

公开(公告)号：US20080133793A1

公开(公告)日：2008-06-05

申请号：US11932718

申请日：2007-10-31

申请人： In Ki HWANG ,  Woo Sug JUNG ,  Do Young KIM

发明人： In Ki HWANG ,  Woo Sug JUNG ,  Do Young KIM

IPC分类号： G06F13/14 ,  H04M1/65

CPC分类号： G06F13/32

摘要： Provided are a method and apparatus for controlling direct memory access. In the method, data to be transmitted are read and stored in response to a direct memory access controller (DMAC) operation request, and a portion of the data corresponding to an initial burst size is first transmitted to a data destination. After resetting a burst size according to a state of the data destination, another portion of the data corresponding to the reset burst size is second-transmitted to the data destination. If all the data are not transmitted through the first-transmission and the second-transmission, the second-transmission is repeated until all the data are transmitted. If all the data are transmitted through the first-transmission and the second-transmission, an interrupt signal is generated. Therefore, interrupt signals can be less generated, and thus the processor can access an external memory less frequently, thereby increasing system performance.

摘要翻译： 提供了一种用于控制直接存储器访问的方法和装置。 在该方法中，响应于直接存储器访问控制器（DMAC）操作请求来读取和存储要发送的数据，并且首先将与初始突发大小相对应的数据的一部分发送到数据目的地。 在根据数据目的地的状态复位突发大小之后，与复位突发大小对应的数据的另一部分被第二次发送到数据目的地。 如果所有的数据都不是通过第一次传输和第二次传输传输的，那么重复第二次传输，直到所有的数据被发送。 如果通过第一次传输和第二次传输传输所有数据，则产生一个中断信号。 因此，可以较少地产生中断信号，因此处理器可以较少地访问外部存储器，从而提高系统性能。

公开(公告)号：US08195846B2

公开(公告)日：2012-06-05

申请号：US12746565

申请日：2008-10-01

申请人： In-Ki Hwang ,  Do-Young Kim ,  Byung-Sun Lee

发明人： In-Ki Hwang ,  Do-Young Kim ,  Byung-Sun Lee

IPC分类号： G06F13/28 ,  G06F13/20

CPC分类号： G06F13/28

摘要： A direct memory access controller (DMAC) for improving data transmission efficiency in multi-media over internet protocol (MMoIP) and a method therefor are provided. The DMAC requests and obtains a bus control right by determining that a DMA request signal is generated not only when a DMA request signal of a module for processing data in MMoIP is received but also when an operation of a timer operating during a predetermined period set considering periodicity of data in MMoIP is completed. Thus, the time taken to request a bus control right in a conventional DMAC can be reduced, thereby improving data transmission efficiency in MMoIP.

摘要翻译： 提供了一种用于提高多媒体互联网协议（MMoIP）的数据传输效率的直接存储器访问控制器（DMAC）及其方法。 DMAC通过确定DMA请求信号不仅在MMoIP中处理数据的模块的DMA请求信号被接收到时产生总线控制权，而且当在考虑到MMoIP的预定时段内运行的定时器的操作 MMoIP中的数据周期性完成。 因此，可以减少在常规DMAC中请求总线控制权所需的时间，从而提高MMoIP中的数据传输效率。

公开(公告)号：US06880517B1

公开(公告)日：2005-04-19

申请号：US10750668

申请日：2003-12-31

申请人： In-Ki Hwang

发明人： In-Ki Hwang

IPC分类号： F01L1/04 ,  F01L1/08 ,  F01L1/26 ,  F02B19/02 ,  F02B19/10 ,  F02B23/04 ,  F02B41/04 ,  F02D13/02 ,  F02F1/00

CPC分类号： F02B19/02 ,  F02B41/04 ,  Y02T10/125

摘要： A two-step combustion system configured to install an auxiliary combustion chamber at the upper lateral surface of the combustion chamber and to store some of the compressed fuel-air mixture in the auxiliary combustion chamber to allow the fuel-air mixture to be burnt again after the middle of an explosion stroke, thereby reducing the fluctuation range of the rotational force of a crankshaft.

摘要翻译： 一种两级燃烧系统，其被构造成在燃烧室的上侧表面处安装辅助燃烧室，并将一些压缩的燃料 - 空气混合物储存在辅助燃烧室中，以允许燃料 - 空气混合物再次燃烧 在爆炸行程的中间，从而减小曲轴的旋转力的波动范围。