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    • 4. 发明授权
    • Communications link discontinuity detection systems and methods
    • 通信链路不连续检测系统和方法
    • US09215101B2
    • 2015-12-15
    • US12333235
    • 2008-12-11
    • Richard HartXiaochuan Yi
    • Richard HartXiaochuan Yi
    • H04L25/02H04L25/08
    • H04B3/46H04L25/0278H04L25/08
    • Systems and methods for detecting and analyzing discontinuities in a communications link are disclosed. In some embodiments, the systems and methods operate to project signals into the communications link and detecting reflected signals. The reflected signals are processed to define a transformed distribution of the reflected signals. A peak value in the transformed distribution is selected and a local fit to the selected peak value is performed using a model function. A residue distribution is formed based upon the transformed distribution and the model function. A location of the discontinuity based upon the residue distribution is identified, and another peak value from the residue distribution is selected. Additional systems and methods are disclosed.
    • 公开了用于检测和分析通信链路中的不连续性的系统和方法。 在一些实施例中,系统和方法操作以将信号投影到通信链路中并检测反射信号。 处理反射信号以定义反射信号的变换分布。 选择变换分布中的峰值,并使用模型函数执行对所选峰值的局部拟合。 基于变换分布和模型函数形成残差分布。 识别基于残差分布的不连续位置,并选择来自残差分布的另一个峰值。 公开了附加的系统和方法。
    • 7. 发明授权
    • Clog resistant gutter-downspout connection unit
    • 防堵塞排水口下水口连接单元
    • US4956948A
    • 1990-09-18
    • US424528
    • 1989-10-19
    • Richard Hart
    • Richard Hart
    • E04D13/064E04D13/08
    • E04D13/08E04D13/0645
    • An improved gutter-downspout connection unit to be used in connecting a conventional gutter to a conventional downspout in rain water removal systems which is generally anvilar in structure comprising an upper body having first and second upper body sides and first and second end pieces with at least one of the end pieces having a smooth curvature which downwardly and inwardly converges towards the other end piece wherein the upper body sides and the end pieces adjoin each other along common edges such that the upper edges of the upper body sides and the end pieces form a common edge defining a top opening, and the lower edges of the upper body sides and the end pieces form a common edge defining a bottom opening substantially opposite the top opening, such that and debris and water contained in the conventional gutter will follow a curved path from the gutter to the downspout thereby making the gutter-downspout connection unit essentially clog-resistant.
    • 一种改进的排水口下水口连接单元,用于将常规沟槽连接到雨水除去系统中的常规下水口,其通常在结构上类似于包括具有第一和第二上部主体侧面的上部主体以及至少具有第一和第二端部件 其中一个端部件具有平滑的曲率,向下并向内朝向另一端部收敛,其中上部主体侧面和端部件沿着共同的边缘彼此邻接,使得上部主体侧面和端部件的上边缘形成一个 公共边缘限定顶部开口,并且上部主体侧部和端部件的下边缘形成公共边缘,其限定基本上与顶部开口相对的底部开口,使得包含在常规槽中的碎屑和水将沿着弯曲路径 从沟渠到下水口,从而使排水沟下水道连接单元基本上阻塞。
    • 8. 发明申请
    • METHOD FOR DETERMINATION OF BRIDGED TAPS ON A TRANSMISSION LINE
    • 用于确定传输线上桥接桥的方法
    • US20100124261A1
    • 2010-05-20
    • US12274549
    • 2008-11-20
    • Richard Hart
    • Richard Hart
    • H04B1/38H04B17/00
    • H04B3/46
    • The present invention is directed to determining a length of at least one bridged tap on a transmission line. The invention includes estimating an Equivalent Working Length (EWL) associated with the transmission line using an Hlog spectrum by converting at least one Hlog data point in an EWL estimation, determining the shortest EWL estimation to be an EWL associated with the tap, and determining loss due to the tap by subtracting the Hlog for a straight piece of 26G wire of length EWL from the input data Hlog. The losses are then removed from the Hlog spectrum using the EWL. A tap associated with a peak can be identified in a Fourier analysis of the Hlog spectrum. A length of a tap is determined using a Chi-squared analysis by verifying a tap, subtracting the theoretical loss due to the tap from the Hlog spectrum and repeating the process until all taps are identified.
    • 本发明涉及确定传输线上的至少一个桥接抽头的长度。 本发明包括通过在EWL估计中转换至少一个Hlog数据点,使用Hlog谱估计与传输线相关联的等效工作长度(EWL),确定最短EWL估计为与抽头相关联的EWL,并确定损失 由于从输入数据Hlog中减去长度为EWL的直线26G线的Hlog来抽头。 然后使用EWL从Hlog谱中除去损失。 可以在Hlog谱的傅立叶分析中识别与峰相关联的抽头。 使用卡方分析来确定抽头的长度,通过验证抽头,从Hlog谱中减去由抽头引起的理论损失并重复该过程,直到所有抽头被识别为止。
    • 10. 发明申请
    • Powered trailer dolly
    • 动力拖车dolly
    • US20070151776A1
    • 2007-07-05
    • US11323605
    • 2005-12-29
    • Richard Hart
    • Richard Hart
    • B62M7/14
    • B62D59/04B60P3/1083B60S9/215
    • A towing dolly is provided for relocating wheeled loads such as boat trailers, camping trailers and airplanes where towing forces required may be substantial. The towing dolly may have a wheel assembly with a drive gear disposed between proximate treads. The towing dolly may have a narrow wheel width providing easy steering and compact size for storage. The towing dolly may have a motor with a gear sprocket. A linked chain may transfer power from the motor to the drive gear located between the double treads. The dolly may have a steering arm extending perpendicular to drive direction allowing the operator to stand away from path of movement of the load while providing adequate leverage to steer the dolly. The dolly may have an alternate configuration with a power source located on the dolly providing operation independent of plugins or extension cords.
    • 提供牵引小车用于重新定位轮式负载,如船拖车,野营拖车和飞机,其中所需的牵引力可能很大。 牵引台车可具有轮组件,其中驱动齿轮设置在邻近胎面之间。 牵引车可能具有窄的车轮宽度,提供易于转向和紧凑的尺寸用于存储。 牵引小车可能有一个带有齿轮链轮的电机。 连接的链条可以将动力从电动机传递到位于双胎面之间的驱动齿轮。 小车可以具有垂直于驱动方向延伸的转向臂,允许操作者远离负载的运动路径,同时提供足够的杠杆来引导小车。 小车可以具有替代配置,其中电源位于小车上,独立于插件或延长线提供操作。