利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

25 条记录 (耗时 0.028 秒)

    Beam forming method and multiple antenna system using the same
    1.
    发明授权
    Beam forming method and multiple antenna system using the same 有权
    光束形成方法和使用相同的多天线系统

    公开(公告)号：US08583055B2

    公开(公告)日：2013-11-12

    申请号：US13165266

    申请日：2011-06-21

    申请人： Joun Sup Park ,  Chul Gyun Park ,  Young Chai Ko ,  Hyun Ho Lee

    发明人： Joun Sup Park ,  Chul Gyun Park ,  Young Chai Ko ,  Hyun Ho Lee

    IPC分类号： H04B1/00 ,  H04B7/00

    CPC分类号： H04B7/0617 ,  H04B7/0634 ,  H04B7/0639 ,  H04L5/0023 ,  H04L5/0048

    摘要： Disclosed are a beam forming method and a multiple antenna system using the same. There is provided a multiple antenna system which forms optimal beam patterns through a transmission of a training sequence between a transmitter and a receiver, each including a plurality of antennas, the multiple antenna system comprising: a transmitter selecting antennas to be activated according to a level and transmitting the training sequence to a receiver through the selected antennas; a receiver selecting the antennas to be activated according to the level and transmitting to the transmitter an index of an optimal transmission weight vector significantly reducing a cost function based on the training sequence transmitted from the transmitter, wherein the transmitter selects antennas so that the beam patterns formed by the antennas selected at a q-th level (q: the index of the level) include the beam patterns formed by the antennas selected at a q+1-th level. As a result, the transmission frequency of the training sequence may be reduced.

    摘要翻译： 公开了一种波束形成方法和使用该波束形成方法的多天线系统。 提供了一种多天线系统，其通过发射机和接收机之间的训练序列的传输形成最佳波束图案，每个天线系统包括多个天线，所述多天线系统包括：发射机，根据等级来选择要激活的天线 并通过所选择的天线将训练序列发射到接收机; 接收机根据电平选择要激活的天线，并且基于从发射机发送的训练序列向发射机发送最佳传输权重向量的索引，其显着地降低成本函数，其中发射机选择天线，使得波束模式 由在第q级选择的天线（q：电平的索引）形成的天线包括由在q + 1级选择的天线形成的波束图案。 结果，可以减少训练序列的发送频率。

    BEAM FORMING METHOD AND MULTIPLE ANTENNA SYSTEM USING THE SAME
    2.
    发明申请
    BEAM FORMING METHOD AND MULTIPLE ANTENNA SYSTEM USING THE SAME 有权
    波束形成方法和使用该方法的多个天线系统

    公开(公告)号：US20120200459A1

    公开(公告)日：2012-08-09

    申请号：US13165266

    申请日：2011-06-21

    申请人： Joun Sup PARK ,  Chul Gyun Park ,  Young Chai Ko ,  Hyun Ho Lee

    发明人： Joun Sup PARK ,  Chul Gyun Park ,  Young Chai Ko ,  Hyun Ho Lee

    IPC分类号： H01Q3/00

    CPC分类号： H04B7/0617 ,  H04B7/0634 ,  H04B7/0639 ,  H04L5/0023 ,  H04L5/0048

    摘要： Disclosed are a beam forming method and a multiple antenna system using the same. There is provided a multiple antenna system which forms optimal beam patterns through a transmission of a training sequence between a transmitter and a receiver, each including a plurality of antennas, the multiple antenna system comprising: a transmitter selecting antennas to be activated according to a level and transmitting the training sequence to a receiver through the selected antennas; a receiver selecting the antennas to be activated according to the level and transmitting to the transmitter an index of an optimal transmission weight vector significantly reducing a cost function based on the training sequence transmitted from the transmitter, wherein the transmitter selects antennas so that the beam patterns formed by the antennas selected at a q-th level (q: the index of the level) include the beam patterns formed by the antennas selected at a q+1-th level. As a result, the transmission frequency of the training sequence may be reduced.

    摘要翻译： 公开了一种波束形成方法和使用该波束形成方法的多天线系统。 提供了一种多天线系统，其通过发射机和接收机之间的训练序列的传输形成最佳波束图案，每个天线系统包括多个天线，所述多天线系统包括：发射机，根据等级来选择要激活的天线 并通过所选择的天线将训练序列发射到接收机; 接收机根据电平选择要激活的天线，并且基于从发射机发送的训练序列向发射机发送最佳传输权重向量的索引，其显着地降低成本函数，其中发射机选择天线，使得波束模式 由在第q级选择的天线（q：电平的索引）形成的天线包括由在q + 1级选择的天线形成的波束图案。 结果，可以减少训练序列的发送频率。

    Beamforming apparatus and method in multi-antenna system
    3.
    发明授权
    Beamforming apparatus and method in multi-antenna system 有权
    多天线系统中的波束成形装置和方法

    公开(公告)号：US08599980B2

    公开(公告)日：2013-12-03

    申请号：US13469591

    申请日：2012-05-11

    申请人： Young Chai Ko ,  Hyun Ho Lee

    发明人： Young Chai Ko ,  Hyun Ho Lee

    IPC分类号： H04B7/10 ,  H01Q3/00

    CPC分类号： H04B7/0417 ,  H04B7/0634 ,  H04L27/2601 ,  H04L2025/03802

    摘要： The present invention relates to a symbol-wise beamforming apparatus and method in an OFDM communication system using multiple antennas. A weight vector calculator calculates a transmit weight vector using a signal received through the multiple antennas as an input on the basis of channel information in the time domain and covariance matrix information about interference and noise and computes a receive weight vector using the calculated transmit weight vector. At least one of the calculated transmit weight vector and receive weight vector is transmitted to a transmission apparatus through a transmitter.

    摘要翻译： 本发明涉及使用多个天线的OFDM通信系统中的符号式波束成形装置和方法。 权重向量计算器基于时域中的信道信息和关于干扰和噪声的协方差矩阵信息，使用通过多个​​天线接收的信号作为输入来计算发射权重向量，并使用计算的发射权重向量计算接收权重向量 。 所计算的发射权重向量和接收权重向量中的至少一个通过发射机发送到发射装置。

    Backlight unit equipped with light emitting diodes
    4.
    发明申请
    Backlight unit equipped with light emitting diodes 有权
    背光单元配有发光二极管

    公开(公告)号：US20070221941A1

    公开(公告)日：2007-09-27

    申请号：US11714193

    申请日：2007-03-06

    申请人： Gi Ho Jeong ,  Jae Wook Kwon ,  Dong Jin Kim ,  Yoon Tak Yang ,  Hyeong Won Yun ,  Hyun Ho Lee ,  Jeong Hoon Park

    发明人： Gi Ho Jeong ,  Jae Wook Kwon ,  Dong Jin Kim ,  Yoon Tak Yang ,  Hyeong Won Yun ,  Hyun Ho Lee ,  Jeong Hoon Park

    IPC分类号： H01L33/00

    CPC分类号： H05K1/0206 ,  F21K9/00 ,  G02F1/133603 ,  G02F2001/133628 ,  H01L2224/48091 ,  H05K3/0061 ,  H05K2201/10106 ,  H05K2201/10409 ,  H01L2924/00014

    摘要： Disclosed herein is a backlight unit equipped with LEDs. The backlight includes an insulating substrate, a plurality of LED packages, an upper heat dissipation plate, and a lower heat dissipation plate. The insulating substrate is provided with predetermined circuit patterns. The LED packages are mounted above the insulating substrate, and are electrically connected to the circuit patterns. The upper heat dissipation plate is formed on the insulating substrate, and is configured to come into contact with the circuit patterns and to dissipate heat. The lower heat dissipation plate is formed on the insulating substrate, and is configured to transmit heat transmitted through the upper heat dissipation plate. The upper heat dissipation plate and the lower heat dissipation plate are connected to each other by at least one through hole, and the through hole and the upper heat dissipation plate have a predetermined area ratio.

    摘要翻译： 这里公开了配备有LED的背光单元。 背光源包括绝缘基板，多个LED封装，上部散热板和下部散热板。 绝缘基板设置有预定的电路图案。 LED封装安装在绝缘基板上方，并且电连接到电路图案。 上部散热板形成在绝缘基板上，并被配置为与电路图案接触并散热。 下部散热板形成在绝缘基板上，构成为透过上部散热板透过的热量。 上散热板和下散热板通过至少一个通孔彼此连接，并且通孔和上散热板具有预定的面积比。

    Backlight unit equipped with light emitting diodes
    5.
    发明授权
    Backlight unit equipped with light emitting diodes 有权
    背光单元配有发光二极管

    公开(公告)号：US08053804B2

    公开(公告)日：2011-11-08

    申请号：US12693994

    申请日：2010-01-26

    申请人： Gi Ho Jeong ,  Jae Wook Kwon ,  Dong Jin Kim ,  Yoon Tak Yang ,  Hyeong Won Yun ,  Hyun Ho Lee ,  Jeong Hoon Park

    发明人： Gi Ho Jeong ,  Jae Wook Kwon ,  Dong Jin Kim ,  Yoon Tak Yang ,  Hyeong Won Yun ,  Hyun Ho Lee ,  Jeong Hoon Park

    IPC分类号： H01L33/64

    CPC分类号： H05K1/0206 ,  F21K9/00 ,  G02F1/133603 ,  G02F2001/133628 ,  H01L2224/48091 ,  H05K3/0061 ,  H05K2201/10106 ,  H05K2201/10409 ,  H01L2924/00014

    摘要： Disclosed herein is a backlight unit equipped with LEDs. The backlight includes an insulating substrate, a plurality of LED packages, an upper heat dissipation plate, and a lower heat dissipation plate. The insulating substrate is provided with predetermined circuit patterns. The LED packages are mounted above the insulating substrate, and are electrically connected to the circuit patterns. The upper heat dissipation plate is formed on the insulating substrate, and is configured to come into contact with the circuit patterns and to dissipate heat. The lower heat dissipation plate is formed on the insulating substrate, and is configured to transmit heat transmitted through the upper heat dissipation plate. The upper heat dissipation plate and the lower heat dissipation plate are connected to each other by at least one through hole, and the through hole and the upper heat dissipation plate have a predetermined area ratio.

    摘要翻译： 这里公开了配备有LED的背光单元。 背光源包括绝缘基板，多个LED封装，上部散热板和下部散热板。 绝缘基板设置有预定的电路图案。 LED封装安装在绝缘基板上方，并且电连接到电路图案。 上部散热板形成在绝缘基板上，并被配置为与电路图案接触并散热。 下部散热板形成在绝缘基板上，构成为透过上部散热板透过的热量。 上散热板和下散热板通过至少一个通孔彼此连接，并且通孔和上散热板具有预定的面积比。

    Backlight for liquid crystal display using light emitting diode
    7.
    发明授权
    Backlight for liquid crystal display using light emitting diode 有权
    背光用于使用发光二极管的液晶显示器

    公开(公告)号：US07648254B2

    公开(公告)日：2010-01-19

    申请号：US11783949

    申请日：2007-04-13

    申请人： Chul Hee Yoo ,  Hyun Ho Lee ,  Yoon Tak Yang ,  Myoung Bo Park ,  Sang Yun Lee

    发明人： Chul Hee Yoo ,  Hyun Ho Lee ,  Yoon Tak Yang ,  Myoung Bo Park ,  Sang Yun Lee

    IPC分类号： F21V21/00

    CPC分类号： H05K1/18 ,  G02F1/133603 ,  G02F2001/133601 ,  G02F2001/133628 ,  H05K1/0206 ,  H05K2201/09227 ,  H05K2201/09972 ,  H05K2201/10106 ,  H05K2201/10189 ,  H05K2201/10446

    摘要： In an LCD backlight unit using a light emitting diode, a double-sided printed circuit board includes a plurality of divided areas and conductive vias. A plurality of light emitting diodes are disposed on a top surface of the double-sided printed circuit board. A plurality of driving circuit connectors are disposed at a portion of the double-sided printed circuit board. A plurality of first lead patterns are formed on the top surface of the printed circuit board, each of the first lead patterns electrically connecting the light emitting diodes in each of the divided areas with one another. Also, a plurality of second lead patterns are formed on an underside surface of the double-sided printed circuit board to electrically connect the first lead patterns with the connectors through the conductive vias.

    摘要翻译： 在使用发光二极管的LCD背光单元中，双面印刷电路板包括多个划分区域和导电通路。 多个发光二极管设置在双面印刷电路板的顶表面上。 多个驱动电路连接器设置在双面印刷电路板的一部分。 多个第一引线图案形成在印刷电路板的顶表面上，每个第一引线图案将每个分割区域中的发光二极管彼此电连接。 此外，在双面印刷电路板的下侧表面上形成多个第二引线图案，以通过导电通孔将第一引线图案与连接器电连接。

    Backlight unit for liquid crystal display
    8.
    发明申请
    Backlight unit for liquid crystal display 审中-公开
    背光单元用于液晶显示

    公开(公告)号：US20070247833A1

    公开(公告)日：2007-10-25

    申请号：US11785449

    申请日：2007-04-18

    申请人： Hyun Ho Lee ,  Hun Joo Hahm ,  Hyung Suk Kim ,  Hyeong Won Yun ,  Yoon Tak Yang ,  Myoung Bo Park ,  Chul Hee Yoo ,  Sang Yun Lee ,  Jae Wook Kwon

    发明人： Hyun Ho Lee ,  Hun Joo Hahm ,  Hyung Suk Kim ,  Hyeong Won Yun ,  Yoon Tak Yang ,  Myoung Bo Park ,  Chul Hee Yoo ,  Sang Yun Lee ,  Jae Wook Kwon

    IPC分类号： G09F13/04

    CPC分类号： G02F1/133606 ,  G02F1/133605

    摘要： A backlight unit suitable for realizing a high-quality image. The backlight unit according to the present invention is a direct type, which is disposed under a liquid crystal panel to irradiate light to a back surface of the liquid crystal panel. The backlight unit includes a light source unit having a plurality of light source regions formed on a substrate, each of the light source regions driven separately and having at least one light emitting diode. The backlight unit also includes partitions provided on the substrate and disposed between the light source regions of the light source unit, and a circuit for controlling and driving the light source unit.

    摘要翻译： 适用于实现高质量图像的背光单元。 根据本发明的背光单元是直接型，其设置在液晶面板下方以将光照射到液晶面板的背面。 背光单元包括具有形成在基板上的多个光源区域的光源单元，每个光源区分别驱动并具有至少一个发光二极管。 背光单元还包括设置在基板上并设置在光源单元的光源区域之间的隔板以及用于控制和驱动光源单元的电路。