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    Apparatus and method for determination of frame structure for reducing interference in frequency reuse system using cognitive radio
    1.
    发明授权
    Apparatus and method for determination of frame structure for reducing interference in frequency reuse system using cognitive radio 有权
    用于确定帧结构以减少使用认知无线电的频率复用系统中的干扰的装置和方法

    公开(公告)号：US08724652B2

    公开(公告)日：2014-05-13

    申请号：US13322885

    申请日：2009-11-03

    申请人： Dae-Sik Hong ,  Go-San Noh ,  Han-Ho Wang ,  Jun-Ho Jo ,  Yong-Ho Seok ,  Byoung-Hoon Kim

    发明人： Dae-Sik Hong ,  Go-San Noh ,  Han-Ho Wang ,  Jun-Ho Jo ,  Yong-Ho Seok ,  Byoung-Hoon Kim

    IPC分类号： H04W74/08

    CPC分类号： H04W16/14 ,  H04W74/0808

    摘要： Disclosed are an apparatus and method for determining a frame structure for reducing interference between users using the same frequency band in a communication system using a cognitive radio, the method including, collecting channel status information related to a primary user with a priority to occupancy of a predetermined frequency band, executing spectrum sensing for the frequency band to check whether the primary user's traffic exists, deciding a length of a data frame to be transmitted in consideration of interference to the primary user based upon the collected channel status information if a channel in which the primary user's traffic is not present is sensed through the spectrum sensing, constructing a data frame based upon the decided frame length to transmit via the sensed channel, and re-executing the spectrum sensing for the channel, if data to be additionally transmitted exists, and rechecking whether the primary user's traffic is present.

    摘要翻译： 公开了一种用于在使用认知无线电的通信系统中确定用于减少使用相同频带的用户之间的干扰的帧结构的装置和方法，所述方法包括：收集与主用户相关的信道状态信息，优先占用 对频段执行频谱检测，以检查主用户的业务是否存在，基于所收集的信道状态信息，基于所收集的信道状态信息来确定考虑到主用户的干扰的要发送的数据帧的长度，如果其中的信道 通过频谱感测来感测主要用户的业务不存在，根据所确定的帧长度构建数据帧，以经由所感测到的信道进行发送，并且如果要附加发送的数据存在，则重新执行该信道的频谱感测， 并重新检查主要用户的流量是否存在。

    METHOD FOR PREPARING SUPPORTED HYBRID METALLOCENE CATALYST
    2.
    发明申请
    METHOD FOR PREPARING SUPPORTED HYBRID METALLOCENE CATALYST 有权
    制备支持的混合金属催化剂的方法

    公开(公告)号：US20130253154A1

    公开(公告)日：2013-09-26

    申请号：US13824935

    申请日：2011-09-28

    申请人： Hyeon-Gook Kim ,  Ki-Soo Lee ,  Dae-Sik Hong ,  Eun-Kyoung Song ,  Man-Seong Jeon

    发明人： Hyeon-Gook Kim ,  Ki-Soo Lee ,  Dae-Sik Hong ,  Eun-Kyoung Song ,  Man-Seong Jeon

    IPC分类号： C08F4/6592

    CPC分类号： C08F4/6592 ,  B01J31/1616 ,  B01J31/2295 ,  C08F4/65912 ,  C08F4/65925 ,  C08F10/00 ,  C08F2420/02 ,  Y10S526/943 ,  C08F4/65916 ,  C08F110/02 ,  C08F2500/18 ,  C08F210/16 ,  C08F210/14

    摘要： The present invention relates to a preparation method of a metallocene catalyst. More particularly, the present invention relates to a preparation method of a supported hybrid metallocene catalyst, including the steps of treating a support having a water content of 4 to 7% by weight with trialkyl aluminum at a predetermined temperature; supporting alkyl aluminoxane on the support; and supporting a metallocene compound on the alkyl aluminoxane-supported support. According to the present invention, it is possible to prepare a supported hybrid metallocene catalyst which shows a high activity in the polymerization of olefins and enables the preparation of polyolefins having a high bulk density, by a simple process.

    摘要翻译： 本发明涉及茂金属催化剂的制备方法。 更具体地说，本发明涉及一种负载型杂化金属茂催化剂的制备方法，包括以三烷基铝在预定温度下处理含水量为4-7重量％的载体的步骤; 支持烷基铝氧烷; 并在烷基铝氧烷负载的载体上负载金属茂化合物。 根据本发明，可以通过简单的方法制备在烯烃聚合中显示出高活性的负载型杂化金属茂催化剂，并且能够制备堆积密度高的聚烯烃。

    Apparatus and method for allocating frequency resource in a communication system
    5.
    发明授权
    Apparatus and method for allocating frequency resource in a communication system 有权
    在通信系统中分配频率资源的装置和方法

    公开(公告)号：US08195174B2

    公开(公告)日：2012-06-05

    申请号：US12061993

    申请日：2008-04-03

    申请人： Joo-Hyun Lee ,  Sang-Boh Yun ,  Jong-Hyeuk Lee ,  Dae-Sik Hong ,  Tae-Hoon Kwon

    发明人： Joo-Hyun Lee ,  Sang-Boh Yun ,  Jong-Hyeuk Lee ,  Dae-Sik Hong ,  Tae-Hoon Kwon

    IPC分类号： H04W72/00

    CPC分类号： H04W52/346 ,  H04W72/048

    摘要： A method and apparatus for allocating resources for a mobile station in a communication system is provided. The method includes determining if a mobile station within a cell is located in one of a first region corresponding to a cell center, a third region corresponding to a cell edge, and a second region corresponding to an area between the first and third regions, allocating frequency resources within an entire frequency band to the mobile station when the mobile station is located in the first region, wherein the entire frequency band comprises at least a first frequency band and a second frequency band, allocating frequency resources within the first frequency band to the mobile station when the mobile station is located in the third region, and allocating frequency resources within the second frequency band to the mobile station when the mobile station is located in the second region.

    摘要翻译： 提供了一种在通信系统中为移动台分配资源的方法和装置。 该方法包括：确定小区内的移动台是否位于对应于小区中心的第一区域，对应于小区边缘的第三区域和对应于第一和第三区域之间的区域的第二区域中的一个中，分配 当所述移动站位于所述第一区域中时，所述整个频带内的频率资源到所述移动站，其中，所述整个频带包括至少第一频带和第二频带，将所述第一频带内的频率资源分配给所述第一频带 当所述移动站位于所述第三区域时，将所述第二频带内的频率资源分配给所述移动站。

    STFBC coding/decoding apparatus and method in an OFDM mobile communication system
    7.
    发明授权
    STFBC coding/decoding apparatus and method in an OFDM mobile communication system 有权
    STFBC编码/解码装置和方法在OFDM移动通信系统中

    公开(公告)号：US07301890B2

    公开(公告)日：2007-11-27

    申请号：US10291971

    申请日：2002-11-12

    申请人： Pan-Yuh Joo ,  Dae-Eop Kang ,  Eun-Seok Ko ,  Dae-Sik Hong

    发明人： Pan-Yuh Joo ,  Dae-Eop Kang ,  Eun-Seok Ko ,  Dae-Sik Hong

    IPC分类号： H04J11/00 ,  H04J1/00 ,  H04L12/28 ,  H04L12/56 ,  H04L27/28 ,  H04K1/10

    CPC分类号： H04L27/2607 ,  H04L1/0618

    摘要： A mobile communication system for modulating input data with a specific size into an OFDM (Orthogonal Frequency Division Multiplexing) symbol and transmitting the OFDM symbol through at least two different antennas. A replica generator generates replica data by cyclically-circulating the input data. An encoder generates a first antenna signal and a second antenna signal by encoding the input data and the replica data. A first IFFT (Inverse Fast Fourier Transform) block generates a first OFDM symbol by performing IFFT on the first antenna signal, and a second IFFT block generates a second OFDM symbol by performing IFFT on the second antenna signal. A first antenna transmits the first OFDM symbol, and a second antenna transmits the second OFDM symbol.

    摘要翻译： 一种用于将具有特定尺寸的输入数据调制为OFDM（正交频分复用）符号并通过至少两个不同天线发送OFDM符号的移动通信系统。 复制生成器通过循环输入数据来生成副本数据。 编码器通过对输入数据和副本数据进行编码来生成第一天线信号和第二天线信号。 第一IFFT（快速傅里叶逆变换）块通过对第一天线信号执行IFFT产生第一OFDM符号，第二IFFT块通过对第二天线信号执行IFFT来产生第二OFDM符号。 第一天线发送第一OFDM符号，第二天线发送第二OFDM符号。

    Velocity estimation apparatus and method
    8.
    发明申请
    Velocity estimation apparatus and method 审中-公开
    速度估计装置及方法

    公开(公告)号：US20050267370A1

    公开(公告)日：2005-12-01

    申请号：US11141178

    申请日：2005-05-31

    申请人： Goo-Hyun Park ,  Ye-Hoon Lee ,  Eung-Sun Kim ,  Jong-Hyeuk Lee ,  Ho-Jin Kim ,  Dae-Sik Hong

    发明人： Goo-Hyun Park ,  Ye-Hoon Lee ,  Eung-Sun Kim ,  Jong-Hyeuk Lee ,  Ho-Jin Kim ,  Dae-Sik Hong

    IPC分类号： H04B7/26 ,  A61B8/02 ,  G01S11/10

    CPC分类号： G01S11/10

    摘要： A velocity estimation apparatus and method for a communication system including a transmitter for transmitting signals through wireless channels and a receiver for receiving the signals and restoring data. The apparatus includes a pilot signal detector for detecting a pilot signal from a received signal, a maximum Doppler frequency estimator for estimating a maximum Doppler frequency using the pilot signal detected by the pilot signal detector, and an adaptive type band-limit filter having a limit band based on a previous output value of the maximum Doppler frequency estimator. By using the pilot signal, which is removed with noise, while passing through the band-limit filter, it is possible to precisely estimate a maximum Doppler frequency, and thereby estimate the velocity.

    摘要翻译： 一种用于通信系统的速度估计装置和方法，包括用于通过无线信道发送信号的发射机和用于接收信号和恢复数据的接收机。 该装置包括用于从接收信号检测导频信号的导频信号检测器，用于使用由导频信号检测器检测的导频信号来估计最大多普勒频率的最大多普勒频率估计器，以及具有限制的自适应型限幅滤波器 基于最大多普勒频率估计器的先前输出值的频带。 通过使用在通过带限滤波器时被噪声去除的导频信号，可以精确地估计最大多普勒频率，从而估计速度。

    Disk clamping apparatus for data storage device
    9.
    发明申请
    Disk clamping apparatus for data storage device 审中-公开
    用于数据存储设备的磁盘夹紧装置

    公开(公告)号：US20050185330A1

    公开(公告)日：2005-08-25

    申请号：US10994278

    申请日：2004-11-23

    申请人： Chul-woo Lee ,  Tatsuo Nakamoto ,  Jae-myung Jung ,  Ki-tag Jeong ,  Dae-sik Hong ,  Han-rae Cho

    发明人： Chul-woo Lee ,  Tatsuo Nakamoto ,  Jae-myung Jung ,  Ki-tag Jeong ,  Dae-sik Hong ,  Han-rae Cho

    IPC分类号： G11B17/038 ,  G11B17/02 ,  G11B17/028 ,  G11B17/08 ,  G11B23/03 ,  G11B33/14

    CPC分类号： G11B17/0287 ,  G11B23/0307

    摘要： A disk clamping apparatus for a data storage device fixing at least one disk onto a spindle motor, and having: a clamp combined with the spindle motor and applying pressure onto the disk in a first direction, an outer circumference of the clamp contacting a first part of the disk; and a damper installed between the clamp and the spindle motor to damp impact and vibration delivered to the disk via the clamp. The damper is made of a visco-elastic material and adhered to at least one of a bottom of the clamp or an upper part of the hub. Accordingly, it is possible to damp impacts and vibration delivered to the disk via the clamp, thereby reducing an incidence of the disk bumping against a head, and reducing deterioration of performance of the head.

    摘要翻译： 一种用于将至少一个盘固定在主轴电动机上的数据存储装置的盘夹紧装置，具有：与所述主轴电动机组合的夹具，并沿着第一方向对所述盘施加压力，所述夹具的外周接触第一部分 的磁盘; 以及安装在夹具和主轴电动机之间的阻尼器，以阻止通过夹具传递到盘的冲击和振动。 阻尼器由粘弹性材料制成并且粘附到夹具的底部或轮毂的上部中的至少一个上。 因此，可以通过夹具减少传递到盘的冲击和振动，从而减少盘碰撞头的入射，并减少头的性能劣化。