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    • 53. 发明授权
    • Spatial diversity receiving device and input channel switching method
    • 空间分集接收设备和输入通道切换方法
    • US07627301B2
    • 2009-12-01
    • US11636084
    • 2006-12-08
    • Saixin ZhouLiusi YeHong ChenYunhui SheFang LiuYueping Zuo
    • Saixin ZhouLiusi YeHong ChenYunhui SheFang LiuYueping Zuo
    • H04B1/06H04Q7/20
    • H04B7/082H04B7/0814H04B17/318H04M1/576
    • The invention relates to a spatial diversity receiving device and an input channel switching method. The device comprises a main control circuit and at least one receiving channel including a RF selective switch, wherein the circuit controls the switch, so as to select one of the plurality of input signals from the plurality of antennae and send that signal to a receiving module. The module comprises a RSSI unit for outputting a RSSI value and sends the value to the circuit. On basis of a real time analysis to the receiving signal, the circuit selects a predetermined occasion to perform a compulsive switching and dynamically selects the antenna with a stronger signal so that the generation of error code due to transient interference may be reduced. The system exhibits an excellent resistance to wireless signal fading, and has a simple structure as well as a low cost and power consumption.
    • 本发明涉及空间分集接收装置和输入信道切换方法。 该装置包括主控制电路和至少一个包括RF选择开关的接收通道,其中电路控制开关,以从多个天线中选择多个输入信号中的一个,并将该信号发送到接收模块 。 该模块包括用于输出RSSI值并将该值发送到电路的RSSI单元。 基于对接收信号的实时分析,电路选择预定的时机进行强迫切换,并且动态地选择具有较强信号的天线,从而可以减少由于瞬时干扰引起的错误码的产生。 该系统具有优异的抗无线信号衰落性,结构简单,成本低,功耗低。
    • 54. 发明授权
    • Operator for casement type window
    • 窗扇类型窗口的操作符
    • US07614184B2
    • 2009-11-10
    • US11004126
    • 2004-12-06
    • Jacob RebelHong Chen
    • Jacob RebelHong Chen
    • E05F11/28
    • E05F11/24Y10T74/18792Y10T74/19828
    • An operator comprising a housing ending in a flange is provided with a turret incorporating a stepped bore for locating a worm shaft of a drive mechanism. A first seal is disposed between the worm shaft and the stepped bore. A second seal is interposed between the flange and a frame of a window. An interconnecting mechanism driven by the worm shaft comprises a pair of worm arms followed by a pair of links. The former and the latter are provided with male and female ends using, respectively, a calotte of a sphere complemented by a spherical shaped recess. Thus, between the pair of worm arms and the pair of links, pivotal joints are formed.
    • 包括端部在凸缘中的壳体的操作器设置有包括用于定位驱动机构的蜗杆的阶梯孔的转台。 第一密封件设置在蜗杆轴和阶梯孔之间。 第二密封件插入在凸缘和窗框之间。 由蜗杆轴驱动的互连机构包括一对跟随有一对连杆的蜗杆臂。 前者和后者分别设置有阳和女端部,分别使用由球形凹部补充的球体的杯状物。 因此,在一对蜗杆与一对连杆之间形成枢转接头。