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1. 发明授权

US4766386A Time domain reflectometer for measuring impedance discontinuities on a powered transmission line 失效
标题翻译：用于测量供电传输线路上的阻抗不连续性的时域反射计
公开(公告)号：US4766386A
公开(公告)日：1988-08-23
申请号：US867241
申请日：1986-05-23
申请人： Christopher J. Oliver , Frederick W. Sarles
发明人： Christopher J. Oliver , Frederick W. Sarles
IPC分类号： G01R27/06 , G01R27/04
CPC分类号： G01R31/11 , G01R27/06
摘要： A time domain reflectometer (TDR) for making impedance measurements on a powered transmission line cable system. The TDR is particularly useful for measuring impedance discontinuities on a powered Ethernet system. A negative test pulse is provided to ensure that any positive reflections do not exceed the upper voltage limit of the transceivers. The TDR selectively applies a negative bias to the transmission line cable below the collision detection threshold in order to disable all transceivers and prevent network interference with the TDR measurements. The negative DC bias also provides additional headroom for positive pulse reflections.
摘要翻译：用于在动力传输线缆系统上进行阻抗测量的时域反射计（TDR）。 TDR对于测量供电以太网系统上的阻抗不连续性特别有用。提供负测试脉冲以确保任何正反射不超过收发器的上限电压。 TDR选择性地在传输线电缆的低于冲突检测阈值的位置施加负偏置，以便禁用所有收发器并防止TDR测量的网络干扰。负DC偏置还为正脉冲反射提供额外的余量。

2. 发明授权

US4284351A Processing of digital signals 失效
标题翻译：数字信号处理
公开(公告)号：US4284351A
公开(公告)日：1981-08-18
申请号：US152216
申请日：1980-05-21
申请人： Michael Alldritt , Robin Jones , Christopher J. Oliver , John M. Vaughan
发明人： Michael Alldritt , Robin Jones , Christopher J. Oliver , John M. Vaughan
IPC分类号： G01P5/26 , G01P3/36 , G01R23/16 , H03K5/00
CPC分类号： G01P5/26
摘要： A method of, and apparatus for, processing a digital electric signal composed of a train of discrete uniformly or non-uniformly shaped pulses to recover spectral information contained in the spacings between the pulses, in which the digital signal is applied to a SAW spectrum analyzer arranged to produce output signals the envelopes of which represent the power spectrum over a selected frequency range of constituent sample lengths of the digital signal, and the required spectral information then derived from these output signals, for example by integration thereof over a period of time.The technique may be used in conjunction with a laser Doppler velocity measurement system in which each pulse of the digital signal represents the detection of a photon scattered from a moving object or particle in a scattering volume illuminated by laser light, the spacing between the pulses containing information regarding the velocity of movement of the object or particles under observation.
摘要翻译：一种用于处理由一系列离散均匀或不均匀的脉冲组成的数字电信号的方法和装置，以恢复包含在脉冲之间的间隔中的光谱信息，其中将数字信号施加到SAW频谱分析仪被布置成产生输出信号，其信封表示在数字信号的组成采样长度的选定频率范围内的功率谱，以及然后从这些输出信号导出的所需光谱信息，例如通过在一段时间内的积分。该技术可以与激光多普勒速度测量系统结合使用，其中数字信号的每个脉冲表示从由激光照射的散射体积中的移动物体或颗粒散射的光子的检测，脉冲之间的间隔包含关于被观察物体的运动速度的信息。

3. 发明授权

US4716414A Super resolution imaging system 失效
标题翻译：超分辨率成像系统
公开(公告)号：US4716414A
公开(公告)日：1987-12-29
申请号：US784665
申请日：1985-04-30
申请人： Stephen P. Luttrell , Christopher J. Oliver
发明人： Stephen P. Luttrell , Christopher J. Oliver
IPC分类号： G01S13/02 , G01S13/89
CPC分类号： G01S13/89 , G01S13/0209
摘要： A super resolution imaging system employing coherent radiation comprises transmitting, receiving and processing means to provide complex amplitude image data. The image data is processed by a weight function generator to provide a weight function. The weight function has values at individual image pixels consisting of a background or clutter intensity term added to a pixel intensity dependent term. The latter term is non-zero for pixel intensities exceeding a threshold level well above background. A computer generates singular functions from the weight function and system impulse response, and employs the singular functions to decompose the image data and subsequent object reconstruction. This provides enhanced resolution compared to that available from the image data alone. An iteration controller employs the reconstructed object data to iterate resolution enhancement until no significant improvement is obtained.
摘要翻译：使用相干辐射的超分辨率成像系统包括发射，接收和处理装置以提供复数幅度图像数据。图像数据由权重函数发生器处理以提供权重函数。权重函数具有由添加到像素强度相关项的背景或杂波强度项组成的单个图像像素的值。后一项对于像素强度超过远高于背景的阈值水平为非零。计算机从加权函数和系统脉冲响应中产生奇异函数，并采用奇异函数分解图像数据和随后的对象重构。与单独的图像数据相比，这提供了更高的分辨率。迭代控制器使用重建的对象数据来迭代分辨率增强，直到没有获得显着的改进。

4. 发明授权

US06122281A Method and apparatus for transmitting LAN data over a synchronous wide area network 失效
标题翻译：用于通过同步广域网发送LAN数据的方法和装置
公开(公告)号：US06122281A
公开(公告)日：2000-09-19
申请号：US800363
申请日：1997-02-14
申请人： Mark J. Donovan , Stephen D. Augusta , Christopher J. Oliver
发明人： Mark J. Donovan , Stephen D. Augusta , Christopher J. Oliver
IPC分类号： H04J3/16 , H04L12/46 , H04L12/56 , H04J3/24 , H04I3/16
CPC分类号： H04J3/1617 , H04L12/4604 , H04L12/4625
摘要： A packet of data is received from a LAN and transmitted over a WAN, by retaining the native LAN frame format of the packet during transmission across the WAN. Thus, LAN data may be transmitted over a SONET point-to-point link within a WAN network without the interim steps of creating ATM cells or other WAN transport packaging protocols. Instead, the LAN data may be transmitted directly over the SONET link as raw data, and reconstructed directly at the receiving end of the SONET link. A first buffer stores data from the LAN so that a corresponding packet size may be determined, and a second buffer stores data from the WAN to account for any speed difference between the LAN circuitry and WAN circuitry.
摘要翻译：通过在通过WAN的传输期间保留分组的本地LAN帧格式，从LAN接收并通过WAN发送数据包。因此，可以通过WAN网络内的SONET点对点链路传输LAN数据，而不需要创建ATM信元或其他WAN传输封装协议的中间步骤。相反，LAN数据可以作为原始数据直接通过SONET链路发送，并且直接在SONET链路的接收端重建。第一缓冲器存储来自LAN的数据，使得可以确定相应的分组大小，并且第二缓冲器存储来自WAN的数据以考虑LAN电路和WAN电路之间的任何速度差。

5. 发明授权

US5349343A Flexible module interconnect system 失效
标题翻译：灵活的模块互连系统
公开(公告)号：US5349343A
公开(公告)日：1994-09-20
申请号：US871827
申请日：1992-04-21
申请人： Christopher J. Oliver
发明人： Christopher J. Oliver
IPC分类号： G06F13/40 , H04Q1/00
CPC分类号： G06F13/4022
摘要： A flexible modular interconnect system is provided which utilizes a backplane having a plurality of module receiving slots and a plurality of circuit modules, selected ones of the circuit modules being mounted in at least selected ones of the slots. The modules may be of a variety of different types. First and second switches are provided for each circuit module with selected lines from module logic being connected to each of the switches. The first and second switches for each module are interconnected and the first switch for the selected modules are connected to the switch for adjacent modules. Selected information concerning each module is provided to each adjacent module and control logic is provided which is responsive at least in part to the received information concerning the adjacent module for controlling the state of an appropriate switches. The switches may also be controlled from an external source. By selectively controlling the state of the switches, the modules may be flexibly interconnected.
摘要翻译：提供了灵活的模块化互连系统，其利用具有多个模块接收槽的背板和多个电路模块，所选择的一个电路模块安装在至少选定的一个时隙中。模块可以是各种不同类型的。为每个电路模块提供第一和第二开关，其中模块逻辑的选定线连接到每个开关。每个模块的第一和第二开关互连，并且所选模块的第一开关连接到相邻模块的开关。关于每个模块的所选信息被提供给每个相邻模块，并且提供控制逻辑，其至少部分地响应于所接收的关于相邻模块的信息，以控制适当的开关的状态。开关也可以从外部源控制。通过选择性地控制开关的状态，模块可以被灵活地互连。

6. 发明授权

US4929950A Synthetic aperture radar systems 失效
标题翻译：合成孔径雷达系统
公开(公告)号：US4929950A
公开(公告)日：1990-05-29
申请号：US293599
申请日：1989-01-05
申请人： Anthony Freeman , David Blacknell , Shaun Quegan , Ian A. Ward , Christopher J. Oliver , Ian P. Finley , Richard G. White , James W. Wood
发明人： Anthony Freeman , David Blacknell , Shaun Quegan , Ian A. Ward , Christopher J. Oliver , Ian P. Finley , Richard G. White , James W. Wood
IPC分类号： G01S13/90
CPC分类号： G01S13/9011
摘要： In a synthetic aperture radar system, information concerning the radar reflectivity of a point on the ground is placed in an image at an azimuthal (cross-range) position which corresponds to the position of zero Doppler frequency shift of the received signal, under the assumption that the antenna has followed a straight line trajectory. In practice, the antenna trajectory will undergo small deviations about this straight line path which are not taken into account in the azimuth processing and which, consequently, cause incorrect azimuthal positioning in the image of the information concerning a point target on the ground.The invention uses the value of the slope of the frequency modulation of the received signal, calculated by means of an autofocus procedure, to determine the intercept of this frequency modulation at successive azimuth positions. This true intercept value is then incorporated in the azimuth processing, instead of the assumed intercept of the frequency modulation, allowing imagery which is free from azimuthal positioning errors to be produced.
摘要翻译：在合成孔径雷达系统中，关于地面上的点的雷达反射率的信息被放置在方位（交叉范围）位置处的图像中，该位置对应于接收信号的零多普勒频移的位置，在假设下天线已经沿着直线轨迹。在实践中，天线轨迹将围绕这条直线路径发生小的偏差，在方位处理中不考虑这一点，因此导致关于地面上的点目标的信息的图像中的方位定位不正确。本发明使用通过自动聚焦程序计算的接收信号的频率调制的斜率的值来确定在连续方位位置处的该频率调制的截距。然后将这个真实截距值并入方位处理中，而不是频率调制的假设截距，从而允许产生无方位定位误差的图像。

7. 发明授权

US5115235A Flexible module interconnect system 失效
标题翻译：柔性模块互连系统
公开(公告)号：US5115235A
公开(公告)日：1992-05-19
申请号：US412091
申请日：1989-09-25
申请人： Christopher J. Oliver
发明人： Christopher J. Oliver
IPC分类号： G06F13/40
CPC分类号： G06F13/4022
摘要： A flexible modular interconnect system is provided which utilizes a backplane having a plurality of module receiving slots and a plurality of circuit modules, selected ones of the circuit modules being mounted in at least selected ones of the slots. The modules may be of a variety of different types. First and second switches are provided for each circuit module with selected lines from module logic being connected to each of the switches. The first and second switches for each module are interconnected and the first switch for the selected modules are connected to the second switch for adjacent modules. Selected information concerning each module is provided to each adjacent module and control logic is provided which is responsive at least in part to the received information concerning the adjacent module for controlling the state of an appropriate switch. The switches may also be controlled from an external source. By selectively controlling the state of the switches, the modules may be flexibly interconnected.
摘要翻译：提供了灵活的模块化互连系统，其利用具有多个模块接收槽的背板和多个电路模块，所选择的一个电路模块安装在至少选定的一个时隙中。模块可以是各种不同类型的。为每个电路模块提供第一和第二开关，其中模块逻辑的选定线连接到每个开关。每个模块的第一和第二开关互连，所选模块的第一开关连接到相邻模块的第二开关。关于每个模块的所选信息被提供给每个相邻的模块，并且提供控制逻辑，其至少部分地响应于所接收的关于相邻模块的信息，以控制适当的开关的状态。开关也可以从外部源控制。通过选择性地控制开关的状态，模块可以被灵活地互连。

8. 发明授权

US4963877A Synthetic aperture radar 失效
标题翻译：合成孔径雷达
公开(公告)号：US4963877A
公开(公告)日：1990-10-16
申请号：US435478
申请日：1989-12-05
申请人： James W. Wood , Christopher J. Oliver , Ian P. Finley , Richard G. White
发明人： James W. Wood , Christopher J. Oliver , Ian P. Finley , Richard G. White
IPC分类号： G01S13/90
CPC分类号： G01S13/90
摘要： A synthetic aperture radar system includes a distortion correction device arranged for autofocussing of raw data by contrast maximization. Reference functions are selected on the basis of a range of trial accelerations. The acceleration producing the highest contrast is taken as the current radar platform across-track acceleration. This information is used to generate phase and range corrections for the data.
摘要翻译： PCT No.PCT / GB88 / 00408 Sec。 371日期1989年12月5日第 102（e）日期1989年12月5日PCT提交1988年5月24日PCT公布。出版物WO88 / 10434 日期为1988年12月29日。综合孔径雷达系统包括一个畸变校正装置，用于通过对比度最大化自动对焦原始数据。基于试验加速度的范围来选择参考功能。将产生最高对比度的加速度作为当前的雷达平台跨轨加速度。该信息用于生成数据的相位和范围校正。

9. 发明授权

US4890102A Visual display for communication network monitoring and troubleshooting 失效
标题翻译：用于通讯网络监控和故障排除的视觉显示
公开(公告)号：US4890102A
公开(公告)日：1989-12-26
申请号：US054311
申请日：1987-05-26
申请人： Christopher J. Oliver
发明人： Christopher J. Oliver
IPC分类号： H04L12/26
CPC分类号： H04L43/00 , H04L12/2602
摘要： A communication network transceiver assembly for interfacing between a communication bus and a host system includes a transceiver circuit for coupling data signals to and from the communication bus, a housing for containing the transceiver circuit and several indicator LED's which indicate the operating status of the assembly. The indicator LED's are an integral part of the transceiver assembly and assist in troubleshooting and maintenance. The indicator LED's display the status of transmit and receive signals, collision presence, heartbeat test enable and power. Those LED's which indicate time varying digital signals are driven by interface circuits which include an asymmetrical difference amplifier for sensing the time varying signal, a pulse stretcher and an LED driver.
摘要翻译：用于在通信总线和主机系统之间接口的通信网络收发器组件包括用于将数据信号耦合到通信总线和从通信总线耦合的收发器电路，用于容纳收发器电路的壳体和指示组件的操作状态的若干指示器LED。指示灯是收发器组件的组成部分，有助于故障排除和维护。指示灯显示发送和接收信号的状态，碰撞存在，心跳测试使能和电源。指示时变数字信号的LED由接口电路驱动，该接口电路包括用于感测时变信号的不对称差分放大器，脉冲展宽器和LED驱动器。

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