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1. 发明申请

US20050234666A1 Method and apparatus for transmission line and waveguide testing 失效
公开(公告)号：US20050234666A1
公开(公告)日：2005-10-20
申请号：US11110263
申请日：2005-04-20
申请人： Matthew Taylor , Kevin Bassett , Paul Gili
发明人： Matthew Taylor , Kevin Bassett , Paul Gili
IPC分类号： G06F19/00
CPC分类号： H04B17/103 , G01R31/11 , H04B17/14
摘要： A multi-port junction is used in combination with an Inverse Fourier Transform to detect distance to fault in an RF transmission line or waveguide without the use of heterodyne down-conversion circuits. To provide an ultra-wide bandwidth frequency domain reflectometer the output ports of the multi-port junction are used to calculate distance to fault and return loss. The Inverse Fourier Transform algorithm is modified to take into account both phase shift per unit length of the transmission line and attenuation per unit of length in the transmission line, with the output of the modified Inverse Fourier Transform being applied to a module that subtracts out the effect of previous faults by solving for the distances ahead of time before knowing amplitudes and for solving for amplitude at each prior fault starting with the first fault. The output of this module is then used thresholded to remove the effects of noise, secondary reflections and inconsequential peaks. The result is a time domain waveform in which peak positions indicate the distance to real faults and in which return loss or percent reflection is calculated for each of the faults. Moreover, internal calibration loads and specialized processing are used to effortlessly calibrate the reflectometer in the field.

2. 发明申请

US20050203711A1 Method and apparatus for transmission line and waveguide testing 审中-公开
标题翻译：传输线和波导测试方法和装置
公开(公告)号：US20050203711A1
公开(公告)日：2005-09-15
申请号：US11034592
申请日：2005-01-13
申请人： Matthew Taylor , Kevin Bassett , Paul Gili
发明人： Matthew Taylor , Kevin Bassett , Paul Gili
IPC分类号： G01N33/48 , G01N33/50 , G01R23/16 , G01R27/04 , G01R27/32 , G01R35/00 , G06F19/00 , H04B3/46 , H04B3/56
CPC分类号： G01R31/31717 , G01R27/04 , G01R27/32 , G01R31/11 , G01R35/005 , H04B3/46 , H04B3/493 , H04B3/56 , H04B2203/5425 , H04B2203/5483 , H04B2203/5491 , H04B2203/5495
摘要： A multi-port junction is used in combination with an Inverse Fourier Transform to detect distance to fault in an RF transmission line or waveguide without the use of heterodyne down-conversion circuits. To provide an ultra-wide bandwidth frequency domain reflectometer the output ports of the multi-port junction are used to calculate distance to fault and return loss. The Inverse Fourier Transform algorithm is modified to take into account both phase shift per unit length of the transmission line and attenuation per unit of length in the transmission line, with the output of the modified Inverse Fourier Transform being applied to a module that subtracts out the effect of previous faults by solving for the distances ahead of time before knowing amplitudes and for solving for amplitude at each prior fault starting with the first fault. The output of this module is then used thresholded to remove the effects of noise, secondary reflections and inconsequential peaks. The result is a time domain waveform in which peak positions indicate the distance to real faults and in which return loss or percent reflection is calculated for each of the faults. Moreover, internal calibration loads and specialized processing are used to effortlessly calibrate the reflectometer in the field.
摘要翻译：多端口结与逆傅里叶变换结合使用，以检测RF传输线或波导中的故障距离，而不使用外差下变频电路。为了提供超宽带宽频域反射计，多端口结点的输出端口用于计算故障距离和回波损耗。修改逆傅立叶变换算法以考虑传输线的每单位长度的相移和传输线中每单位长度的衰减，将经修改的逆傅立叶变换的输出应用于将减去通过在了解振幅之前提前解决距离并解决从先验故障开始的每个先前故障时的振幅来解决先前故障的影响。然后使用该模块的输出进行阈值处理，以消除噪声，次级反射和无关紧要峰值的影响。结果是时域波形，其中峰值位置指示到实际故障的距离，并且对于每个故障计算回波损耗或百分比反射。此外，使用内部校准负载和专门的处理来轻松校准现场的反射计。

3. 发明申请

US20140311828A1 MODULAR TREE-MOUNTABLE HUNTING STAND 审中-公开
标题翻译：模块化树桩支架
公开(公告)号：US20140311828A1
公开(公告)日：2014-10-23
申请号：US14319102
申请日：2014-06-30
申请人： Irwin Jay Bassett , Kevin Bassett
发明人： Irwin Jay Bassett , Kevin Bassett
IPC分类号： A01M31/02 , E06C7/00
CPC分类号： A01M31/02 , E06C7/00
摘要： A support frame rail with a central longitudinal axis is orthogonally coupled with a pivot beam. A support frame plate slidably couplable with the support frame rail includes an embedment projection. A hanger plate is fixable couplable with the support frame rail. A planar support platform is pivotably coupleable with the pivot beam. A saddle has a pommel portion, a saddle support portion, and a connecting straddle portion. A saddle bearing assembly defines a first rotation axis and is rotatably coupled with the saddle. A support frame bearing assembly defines a second rotation axis collinear with the central longitudinal axis. A pivot arm assembly is rigidly coupled with the saddle bearing assembly and the support frame bearing assembly. The straddle portion has a triangular cross-section, and enables adoption of an unsupported standing position, a partially supported standing position, or a weight-forward standing position, by a hunter straddling the straddle portion.
摘要翻译：具有中心纵向轴线的支撑框架轨道与枢轴梁正交联接。与支撑框架轨道可滑动地联接的支撑框架板包括嵌入突起。挂架板可与支撑框架导轨固定连接。平面支撑平台与枢转梁可枢转地联接。鞍座具有鞍形部分，鞍座支撑部分和连接跨骑部分。鞍座轴承组件限定第一旋转轴线并且与鞍座可旋转地联接。支撑框架轴承组件限定与中心纵向轴线共线的第二旋转轴线。枢轴臂组件与鞍座轴承组件和支撑框架轴承组件刚性地联接。跨骑部分具有三角形横截面，并且能够通过跨越跨骑部分的猎人采用未支撑的立场位置，部分支撑的立场位置或向前倾斜的站立位置。

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