利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

48 条记录 (耗时 0.024 秒)

    Pilot design method, recording medium, and transmission apparatus
    1.
    发明授权
    Pilot design method, recording medium, and transmission apparatus 有权
    导频设计方法，记录介质和传输装置

    公开(公告)号：US08718155B2

    公开(公告)日：2014-05-06

    申请号：US12734354

    申请日：2008-07-08

    申请人： Ji Hyung Kim ,  Young Seog Song ,  Dong Seung Kwon

    发明人： Ji Hyung Kim ,  Young Seog Song ,  Dong Seung Kwon

    IPC分类号： H04L27/28

    CPC分类号： H04L5/0007 ,  H04L5/0023 ,  H04L5/0048 ,  H04L25/0226 ,  H04L25/0232

    摘要： In an orthogonal frequency division multiple access (OFDMA) communication system, a transmission apparatus connects multiple tiles, which have a 4×3 structure, along a time or frequency axis in an uplink 4-layer partial usage of subchannels (PUSC) mode, and designs pilots corresponding to one layer at one of multiple symbol positions adjacent to a first corner of the tiles and one of multiple symbol positions adjacent to a second corner of the tiles that face the first corner in a diagonal direction. In this case, null symbols are designed at the rest of the symbol positions adjacent to the first corner or the second corner where the pilots are not designed. Accordingly, a receiving apparatus can obtain n channel values from n tiles. Further, n estimated channel values are applied to a linear interpolation method, so that it is possible to estimate the entire channel value of n tiles.

    摘要翻译： 在正交频分多址（OFDMA）通信系统中，传输装置在子信道（PUSC）模式的上行链路4层部分使用中沿着时间或频率轴连接具有4×3结构的多个瓦片，以及 在与瓷砖的第一角相邻的多个符号位置之一的一个位置处设计与一层相对应的导频，以及与对角线方向上的第一角相对的瓦片的第二角附近的多个符号位置之一。 在这种情况下，在与未设计导频的第一角或第二角相邻的符号位置的其余部分设计空符号。 因此，接收装置可以从n个瓦片获得n个信道值。 此外，将n个估计的信道值应用于线性插值方法，使得可以估计n个瓦片的整个信道值。

    Semiconductor device and method for manufacturing the same
    4.
    发明授权
    Semiconductor device and method for manufacturing the same 失效
    半导体装置及其制造方法

    公开(公告)号：US08357578B2

    公开(公告)日：2013-01-22

    申请号：US12643861

    申请日：2009-12-21

    申请人： Ji Hyung Kim

    发明人： Ji Hyung Kim

    IPC分类号： H01L21/336 ,  H01L27/088

    CPC分类号： H01L21/324 ,  H01L21/3247 ,  H01L29/42356 ,  H01L29/4236

    摘要： A semiconductor device and a method for manufacturing the same are disclosed. The method for manufacturing the semiconductor device forms a recess gate region on a semiconductor substrate, forms an isolation layer isolated from the recess gate region using a high-temperature thermal process, and guarantees a larger channel region by filling the isolation layer with a gate electrode material, so that a cell current is increased and on/off characteristics of a transistor are improved.

    摘要翻译： 公开了一种半导体器件及其制造方法。 半导体器件的制造方法在半导体衬底上形成凹陷栅极区域，使用高温热处理形成与凹陷栅极区域隔离的隔离层，并且通过用栅电极填充隔离层来保证较大的沟道区域 材料，使得电池电流增加，并且提高了晶体管的导通/截止特性。

    Channel estimation method in a MIMO wireless communication system
    9.
    发明授权
    Channel estimation method in a MIMO wireless communication system 有权
    MIMO无线通信系统中的信道估计方法

    公开(公告)号：US07756211B2

    公开(公告)日：2010-07-13

    申请号：US11219921

    申请日：2005-09-06

    申请人： Ji-Hyung Kim ,  Dae-Sik Hong ,  Dong-Jun Lee ,  Jong-Han Kim ,  Byung-Jun Park ,  Jong-Ae Park

    发明人： Ji-Hyung Kim ,  Dae-Sik Hong ,  Dong-Jun Lee ,  Jong-Han Kim ,  Byung-Jun Park ,  Jong-Ae Park

    IPC分类号： H04B7/02

    CPC分类号： H04B7/0842 ,  H04B7/04 ,  H04B7/0851

    摘要： A channel estimation method in a Multiple Input Multiple Output (MIMO) mobile communication system having a plurality of transmission antennas and a plurality of reception antennas is provided. In a method of transmitting, by a transmitter, channel estimation signals for channel estimation at a receiver, the transmission antennas transmit the same channel estimation signals for a first frame transmission duration, and transmit predetermined channel estimation signals corresponding to the number of the transmission antennas for a second frame transmission duration.

    摘要翻译： 提供了具有多个发送天线和多个接收天线的多输入多输出（MIMO）移动通信系统中的信道估计方法。 在发射机发送信道估计信号的方法中，发送天线在第一帧传输持续时间内传输相同的信道估计信号，并发送对应于发送天线数量的预定信道估计信号 用于第二帧传输持续时间。

    System and method of controlling power consumption
    10.
    发明申请
    System and method of controlling power consumption 有权
    控制功耗的系统和方法

    公开(公告)号：US20070124621A1

    公开(公告)日：2007-05-31

    申请号：US11604250

    申请日：2006-11-27

    申请人： Ji-Hyung Kim

    发明人： Ji-Hyung Kim

    IPC分类号： G06F1/00

    CPC分类号： G06F1/3203 ,  G06F1/325 ,  G06F1/3278 ,  Y02D10/157 ,  Y02D50/20

    摘要： A system and method of controlling power consumption are provided. The example method may be directed to controlling power consumption in a system including first and second interface blocks, and may include transitioning a first interface block to a power saving mode in response to a status of a first transmission channel, the first transmission channel configured to forward information from the first interface block to a second interface block and transitioning a second interface block to the power saving mode in response to a status of a second transmission channel, the second transmission channel configured to forward information from the second interface block to the first interface block. The example system may include a first interface block transitioning to a power saving mode in response to a status of a first transmission channel and a second interface block transitioning to the power saving mode in response to a status of a second transmission channel, the first transmission channel configured to forward information from the first interface block to the second interface block and the second transmission channel configured to forward information from the second interface block to the first interface block.

    摘要翻译： 提供了一种控制功耗的系统和方法。 示例性方法可以用于控制包括第一和第二接口块的系统中的功率消耗，并且可以包括响应于第一传输信道的状态将第一接口块转换到省电模式，第一传输信道被配置为 将信息从第一接口块转发到第二接口块，并且响应于第二传输信道的状态将第二接口块转换到省电模式，第二传输信道被配置为将信息从第二接口块转发到第一接口块 界面块 该示例系统可以包括响应于第一传输信道的状态而转换到省电模式的第一接口块和响应于第二传输信道的状态而转换到功率节省模式的第二接口块，第一传输 信道，被配置为将信息从第一接口块转发到第二接口块，第二传输信道被配置为将信息从第二接口块转发到第一接口块。