知搜-全球专利检索

  1. 登录
  2. 注册

搜索结果

193 条记录 (耗时 0.02 秒)

    Methods and apparatus for beamforming
    1.
    发明授权
    Methods and apparatus for beamforming 有权
    波束成形的方法和装置

    公开(公告)号：US08619894B1

    公开(公告)日：2013-12-31

    申请号：US13586284

    申请日：2012-08-15

    申请人： Timothy A. Thomas ,  Frederick Vook ,  Eugene Visotsky

    发明人： Timothy A. Thomas ,  Frederick Vook ,  Eugene Visotsky

    IPC分类号： H05B7/02 ,  H04L1/02

    CPC分类号： H04B7/0469 ,  H01Q1/246 ,  H01Q3/26 ,  H01Q21/08 ,  H01Q21/24 ,  H04W16/28

    摘要： Systems and techniques for beamforming are disclosed. Codebook antenna ports, such as ports defined by the 8 transmit antenna LTE codebook, are mapped to sub-elements of an antenna array arranged to form a plurality of elevation and azimuth ports, such as 4 elevation and 2 azimuth ports or 2 elevation and 4 azimuth ports. The mapping is chosen so as to optimize performance. Phasing values may also be applied to signal components provided as inputs to the sub-elements, with the values chosen to maximize performance, such as rank 1 gain or rank 2 or higher performance.

    摘要翻译： 公开了用于波束成形的系统和技术。 诸如由8发射天线LTE码本定义的端口的码本天线端口被映射到布置成形成多个高程和方位端口的天线阵列的子元件，例如4个高程和2个方位端口或2个高程，4个 方位端口。 选择映射以优化性能。 相位值也可以应用于作为子元素的输入提供的信号分量，其中选择的值最大化性能，例如等级1增益或等级2或更高的性能。

    Fusing system of image forming apparatus and temperature control method thereof
    2.
    发明授权
    Fusing system of image forming apparatus and temperature control method thereof 有权
    成像设备熔接系统及其温度控制方法

    公开(公告)号：US07109440B2

    公开(公告)日：2006-09-19

    申请号：US10941945

    申请日：2004-09-16

    申请人： Beom-ro Lee

    发明人： Beom-ro Lee

    IPC分类号： G03G15/20 ,  H05B7/02

    CPC分类号： H05B1/023 ,  G03G15/2039

    摘要： A fusing system for use in an image forming apparatus has a fusing temperature control unit having a controller which controls the surface temperature ‘T’ of the fusing roller by detecting the surface temperature ‘T’ in accordance with a predetermined temperature control period ‘t0’; comparing the surface temperature ‘T’ with a preset target temperature ‘Tt’; turning on and off the heater in accordance with a maximum power supply time ‘Max ON-time’ and a minimum power cutoff time ‘Min OFF-time’ when the surface temperature ‘T’ is lower than the target temperature ‘Tt’; and turning on and off the heater in accordance with a preset minimum power supply time ‘Min ON-time’ when the surface temperature ‘T’ is higher than the target temperature ‘Tt’.

    摘要翻译： 一种用于图像形成装置的定影系统具有：定影温度控制单元，具有控制器，该控制器根据预定的温度控制周期t检测表面温度T，从而控制定影辊的表面温度“T” SUB> 0 将表面温度'T'与预设目标温度'Tt'进行比较; 当表面温度“T”低于目标温度“Tt”时，根据最大供电时间“最大接通时间”和最小停电时间“最小关闭时间”打开和关闭加热器; 并且当表面温度“T”高于目标温度“Tt”时，根据预设的最小电源时间“最小接通时间”打开和关闭加热器。

    System for measuring the arc voltage in an electric furnace
    3.
    发明授权
    System for measuring the arc voltage in an electric furnace 失效
    用于测量电炉电弧电压的系统

    公开(公告)号：US4559630A

    公开(公告)日：1985-12-17

    申请号：US538861

    申请日：1983-10-04

    申请人： Pascal Maes

    发明人： Pascal Maes

    IPC分类号： H05B7/148 ,  H05B7/02 ,  H05B7/101 ,  H05B7/07

    CPC分类号： H05B7/02 ,  H05B7/101

    摘要： A system which permits the measurement, during operation, of the arc voltage electrodes having an upper metal portion (4) cooled by circulating water. The system employs an electrical instrumentation-cable (16) attached to a piece (5) for fixing the graphite consumable portion (3) of the electrode. This cable runs along the axis of the metal portion (4) and then inside one of the water-supply pipes (11), terminating at an electronic box (14) which converts the incoming measurement signal into a light wave.

    摘要翻译： 一种允许在操作期间测量具有由循环水冷却的上部金属部分（4）的电弧电压电极的系统。 该系统采用附接到件（5）的电气仪表电缆（16），用于固定电极的石墨可消耗部分（3）。 该电缆沿着金属部分（4）的轴线延伸，然后在一个供水管道（11）内延伸，终止于将输入的测量信号转换为光波的电子盒（14）。

    Method of continuously smelting a solid material rich in iron metal in an electric arc furnace
    5.
    发明授权
    Method of continuously smelting a solid material rich in iron metal in an electric arc furnace 失效
    在电弧炉中连续熔炼铁质金属的固体材料的方法

    公开(公告)号：US3857697A

    公开(公告)日：1974-12-31

    申请号：US44642474

    申请日：1974-02-27

    申请人： SIDERURGIE FSE INST RECH

    发明人： ANTOINE J ,  VAYSSIERE P

    IPC分类号： C21C5/52 ,  F27B3/08 ,  H05B7/00 ,  H05B7/02 ,  H05B7/148 ,  C22D7/00 ,  H05B7/18

    CPC分类号： C21C5/5211 ,  C21C5/5264 ,  C21C7/00 ,  F27B3/085 ,  F27D2019/0037 ,  H05B7/005 ,  H05B7/02 ,  Y02P10/216

    摘要： Iron metal is continuously smelted in an electric arc furnace having three electrodes energized with three-phase current. Solid material rich in iron metal is continuously fed into a zone of the furnace hearth proximate two electrodes generating long and strongly radiating arcs and molten metal is continuously discharged in a zone of the hearth proximate the third electrode generating a short arc of limited radiation. This method is useful for continuously processing scrap-iron or pre-reduced solid material in the continuous production of steel.

    摘要翻译： 在具有三相电流通电的三相电流电弧炉中连续熔炼铁金属。 富含铁金属的固体材料连续地进入炉底的区域，靠近产生长而强烈辐射的电弧的两个电极，并且熔融金属在靠近第三电极的炉床区域中连续排出，产生短弧的有限辐射。 该方法可用于连续生产钢铁中的废铁或预还原固体物质。