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    • 1. 发明授权
    • Track roller frame assembly
    • 履带车架总成
    • US4836318A
    • 1989-06-06
    • US213744
    • 1988-06-30
    • Andrew J. TonsorDavid E. NelsonJames E. GeeSamuel B. Stevens
    • Andrew J. TonsorDavid E. NelsonJames E. GeeSamuel B. Stevens
    • B62D55/10B62D55/08B62D55/084B62D55/104B62D55/15B62D55/30
    • B62D55/0842B62D55/08B62D55/15B62D55/305
    • A track roller frame assembly for a track-type vehicle includes a rugged and yet lightweight main body including a channel-shaped base, a recoil-mechanism receiving tubular casing overlyingly connected to a first end portion of the base, and a plate structure overlyingly connected to the second end portion of the base. A collar defines a bore therethrough for receiving a support member of a drive wheel preferably containing a hydraulic drive motor, and a support bracket is connected to the tubular casing for pivotally connecting the main body to the main frame of the vehicle. The weight of the superstructure and the tension forces on the drive belt that encircles the track roller frame assembly are advantageously transferred through the collar and the main body along a central vertical plane therealong and to a plurality of roller wheels centrally supported under the base. Several embodiments of the plate structure and the channel-shaped base are illustrated which collectively define a tubular beam having a particularly efficacious height "h" to width "b" relationship and a back-up shoulder for strengthened connection with the tubular casing.
    • 用于轨道式车辆的履带滚轮架组件包括坚固且轻巧的主体,其包括通道形基部,叠置连接到基座的第一端部的反冲机构接收管状壳体以及重叠连接的板结构 到底座的第二端部。 轴环限定穿过其中的孔,用于接收优选地包含液压驱动马达的驱动轮的支撑构件,并且支撑托架连接到管状壳体,用于将主体枢转地连接到车辆的主框架。 围绕滚轮框架组件的驱动带上的上部结构的重量和张力有利地沿其中心垂直平面通过轴环和主体传递到集中支撑在底座下方的多个滚轮。 示出了板结构和通道形基部的几个实施例,其共同地限定了具有特别有效的高度“h”到宽度“b”关系的管状梁,以及用于与管状壳体的加强连接的备用肩部。
    • 2. 发明授权
    • Suspension structure for a tracked vehicle
    • 履带车悬架结构
    • US4781257A
    • 1988-11-01
    • US90476
    • 1987-08-28
    • James E. GeeAndrew J. TonsorDavid E. NelsonRonald L. Satzler
    • James E. GeeAndrew J. TonsorDavid E. NelsonRonald L. Satzler
    • B62D55/08B62D55/084B62D55/15B62D55/30B62D55/06
    • B62D55/15B62D55/08B62D55/0842B62D55/305
    • A vehicle such as a combine harvester or the like includes a main frame and a first and second undercarriages for supporting the main frame and individually having front and rear wheel assemblies and a track encircling the wheel assemblies. A suspension structure therefore includes a laterally spaced apart pair of pivot joints adjacent the front wheel assemblies for pivotally connecting the undercarriages to the main frame, and a coupling assembly adjacent the rear wheel assemblies for centrally supporting the main frame on the undercarriages. A hydraulic motor powerably rotates each of the rear wheel assemblies and an inside support device is provided therefor that includes a stabilizing beam. The coupling assembly includes an equalizer bar having outer ends, and the stabilizing beam extends rearwardly beyond the driven rear wheel assemblies for connection to the outer ends. Also, an outside support device releasably clamps the rear wheel assemblies to the undercarriages.
    • 诸如联合收割机等的车辆包括主框架和用于支撑主框架的第一和第二底架,并且单独地具有前轮组件和后轮组件以及包围轮组件的轨道。 因此,悬挂结构包括邻近前轮组件的横向间隔开的一对枢转接头,用于将起落架枢转地连接到主机架;以及邻近后轮组件的联接组件,用于将主框架集中支撑在起落架上。 液压马达能够使每个后轮组件功率旋转,并且为此提供包括稳定梁的内部支撑装置。 联接组件包括具有外端的均衡棒,并且稳定梁向后延伸超过从动后轮组件以连接到外端。 此外,外部支撑装置可释放地将后轮组件夹紧到起落架。
    • 3. 发明授权
    • Echo ranging system for detecting velocity of targets using composite
doppler invariant transmissions
    • 使用复合多普勒不变量传输来检测目标速度的回波测距系统
    • US5212489A
    • 1993-05-18
    • US931670
    • 1992-08-20
    • David E. Nelson
    • David E. Nelson
    • G01S13/26G01S13/58G01S15/58
    • G01S13/583G01S13/26G01S15/586
    • Target velocity and range are measured with high resolution in an echo ranging system (sonar or radar) using composite Doppler invariant signals consisting of at least two segments, such as "rooftop" or "vee" HFM signals, such composite signals having ambiguity functions that intersect along the zero-velocity time axis with ridge lines slanted in different directions. A single correlator is used for each segment wherein returns from the target are correlated with replicas of each segment of the composite signal to separately transform the Doppler frequency shifts of the target return into outputs whose time relationship provides a frame of reference for high resolution measurement of the velocity of the target. The time relationship measurement is implemented by a set of tapped delay lines and coherent summers which output a coherent correlation-like detection peak in a bin which corresponds to the target's velocity. Thus, one correlator for each transmission segment together with a tapped delay line and summer network may be used for velocity detection, with high precision range detection, based upon the timing of the detection peak with respect to the transmitted signal, also being implemented at the same time, thereby avoiding the classical need for an expensive bank of correlators (one for each velocity bin) and yielding significant economies for the simultaneous high resolution measurement of range and velocity for a target by means of echo ranging.
    • 使用由诸如“屋顶”或“vee”HFM信号的至少两个段组成的复合多普勒不变信号,在回波测距系统(声纳或雷达)中以高分辨率测量目标速度和范围,这样的复合信号具有模糊函数, 沿零速度时间轴相交,棱线在不同方向倾斜。 对于每个段使用单个相关器,其中来自目标的返回与复合信号的每个段的复制相关,以将目标返回的多普勒频移单独地变换为其时间关系为高分辨率测量提供参考帧的输出 目标的速度。 时间关系测量通过一组抽头延迟线和相干相加来实现,该相加相加在一个相应于目标速度的仓中输出相干相关检测峰。 因此,基于针对发射信号的检测峰值的定时,可以将用于每个传输段的一个相关器与抽头延迟线和加法网络一起用于速度检测,具有高精度范围检测,并且还在 从而避免了经济上需要一个昂贵的相关器组(每个速度仓一个),并且通过回波测距为目标的同步高分辨率测量范围和速度产生显着的经济效果。
    • 4. 发明授权
    • Optical sensor system
    • 光学传感器系统
    • US4294513A
    • 1981-10-13
    • US74270
    • 1979-09-11
    • David E. NelsonJohn V. Bouyoucos
    • David E. NelsonJohn V. Bouyoucos
    • G01H9/00G02B5/172
    • G01H9/00Y10S177/06
    • An optical transducer with an optical waveguide having two paths for the propagation of light is deformed in response to acoustical pressure variations or other parameters to be sensed to modulate the amplitude of the light propagated along the two paths in opposite polarities. The light outputs of the two paths are sensed by photodetectors and applied to an electrical differencing circuit. The mean values of the photodetector outputs are balanced as by mechanically providing a predetermined bias deformation of the fiber, or by electrically matching outputs of the detectors such that, on the average, the output of the differencing circuit is zero. Dynamic deformation of the fiber in the transducer results in unbalanced outputs of the photodetectors which unbalance is sensed by the differencing circuit. This differential detection method minimizes optical and mechanical sources of noise in the light source and waveguide and leads to increased signal-to-noise and enhanced dynamic range of the transducer.
    • 具有光波导的光学传感器具有用于光的传播的两条路径,以响应于声压变化或其他待检测的参数而变形,以便以相反的极性调制沿着两个路径传播的光的振幅。 两路径的光输出由光电检测器检测并施加到电差分电路。 光电检测器输出的平均值通过机械地提供光纤的预定偏置变形或通过电气匹配检测器的输出而平衡,使得差分电路的输出平均为零。 换能器中光纤的动态变形导致光电探测器的不平衡输出,不平衡被差分电路感测到。 该差分检测方法使光源和波导中的光学和机械噪声源最小化,并且导致传感器增加的信噪比和增强的动态范围。
    • 6. 发明授权
    • Echo ranging system for detecting velocity and range of targets using
composite doppler invariant-like transmissions with suppression of
false targets
    • US5212490A
    • 1993-05-18
    • US851262
    • 1992-03-13
    • David E. NelsonJohn V. Bouyoucos
    • David E. NelsonJohn V. Bouyoucos
    • G01S13/34G01S13/58
    • G01S13/584G01S13/34
    • False target (reverberation, clutter, etc.) detection is suppressed in an echo ranging system (sonar or radar) in which target velocity and range are measured using a composite Doppler invariant-like signal having at least two segments, such as are present in a "rooftop" or "vee" HFM signal, such composite signal having an ambiguity function with two or more ridge lines of different slopes that intersect along the zero-velocity time axis. A bank of matched filters provides a distribution of outputs which has an ambiguity function-like character with intersecting pairs of ridge lines, the intersecting points of said pairs characterizing the range and velocity of the echo returns. This distribution is adjusted so that the intersecting ridge lines of each pair have equal and opposite slopes with respect to the time axis. In particular, fixed reverberators, which would have ridge lines intersecting on the zero-velocity time axis, would be symmetrical about this axis. A target with velocity v would present ridge lines intersecting along the v-velocity time axis and be symmetrical about that axis. Thus, the reverberation and the moving target would each have crossed ridge lines whose characteristic intersecting patterns would each exhibit symmetries, but about separate and distinct axes. False targets, including clutter and reverberation, are suppressed by subtracting from the adjusted output distribution, a replica thereof, folded (rotated) 180.degree. about a time axis containing the intersection of the ridge line pair corresponding to the false target which is to be suppressed. The rotation and subtraction of the replica from the adjusted distribution provides a set of outputs from which the real target velocity and range can be determined. The rotation-subtraction process can be implemented on an on-going basis to suppress a plurality or continuum of false targets and to achieve a desired width of a Doppler notch covering an arbitrary range of velocities.
    • 7. 发明授权
    • Sensor system with time division multiplexing telemetry
    • 具有时分复用遥测的传感器系统
    • US4628493A
    • 1986-12-09
    • US350902
    • 1982-02-22
    • David E. NelsonDavid M. BergRobert J. Hannon
    • David E. NelsonDavid M. BergRobert J. Hannon
    • G01V1/22H04J3/00
    • G01V1/22
    • A seismic array containing a large number of seismic sensors, which may be optical hydrophones, has successive sections, each of which contains a subarray of sensor channels, interconnected by a fiber optic signal transmission line via telemetry modules. Synchronizing signals for initiating successive scans of the sensors in the array and timing the multiplexing of the channels are transmitted along the signal transmission line from the tail end of the line through telemetry modules to the head end. Equipment for receiving, demultiplexing and processing the seismic data is provided at the head end. The array may be towed as a seismic streamer and the head end equipment located topside on the towing vessel. The telemetry modules provide hybrid optical/electrical operation such that array sections including the optical hydrophones and fiber optic links are coupled to each other exclusively by electrical connectors. Submultiplexing of each subarray of sensors (hydrophones) is carried out by the telemetry module under control of scan synchronizing and timing signals so as to avoid the need for anti-aliasing filters and sample and hold circuits associated with the hydrophones in the array, while improving the signal to noise ratio of the seismic data signals derived from the array, in spite of shot or photon noise and also minimizing timing skew errors.
    • 包含大量地震传感器(其可以是光学水听器)的地震阵列具有连续的部分,每个部分包含通过遥测模块通过光纤信号传输线互连的传感器通道的子阵列。 用于启动阵列中的传感器的连续扫描的同步信号和通道的多路复用的定时信号沿着信号传输线从线路的尾端通过遥测模块传输到头端。 在头端提供用于接收,解复用和处理地震数据的设备。 该阵列可以作为地震拖缆被拖曳并且头端设备位于牵引船的顶部。 遥测模块提供混合光学/电气操作,使得包括光学水听器和光纤链路的阵列部分仅通过电连接器彼此耦合。 传感器(水听器)的每个子阵列的子复用在扫描同步和定时信号的控制下由遥测模块进行,以避免在阵列中需要抗混叠滤波器和与水听器相关联的采样和保持电路,同时改进 尽管射击或光子噪声,并且还使定时偏移误差最小化,但是从阵列导出的地震数据信号的信噪比。
    • 8. 发明申请
    • System and Method for Monitoring Tax Information
    • 监督税务信息的制度和方法
    • US20090037305A1
    • 2009-02-05
    • US11833185
    • 2007-08-02
    • Joachim SanderStefan ScheidBarbara LeibssleIsabel Molina JimenezDavid E. Nelson
    • Joachim SanderStefan ScheidBarbara LeibssleIsabel Molina JimenezDavid E. Nelson
    • G06F19/00
    • G06Q30/06G06Q30/04G06Q40/123
    • This disclosure provides various embodiments of software for monitoring tax information in a business application. In one aspect, the software collects a set of tax information associated with at least one taxed entity from a plurality of logically disparate sub-modules, each sub-module associated with a business application. The software presents at least a portion of the collected set of tax information at a centralized reporting interface to a first client authorized by the particular taxed entity, wherein presenting at least a portion of the set of tax information comprises displaying one or more of the following: tax information related to one or more tax returns associated with the particular taxed entity; tax information related to one or more tax registers associated with the particular taxed entity; or tax information related to one or more tax payments associated with the particular taxed entity.
    • 本公开提供用于监视商业应用中的税务信息的软件的各种实施例。 在一个方面,软件从与逻辑上不同的子模块,与业务应用相关联的每个子模块收集与至少一个纳税实体相关联的一组税务信息。 所述软件将收集的一组税收信息的至少一部分在集中的报告界面上呈现给由所述特定纳税实体授权的第一客户端,其中呈现所述一组税务信息的至少一部分包括显示以下的一个或多个 :与特定税务实体相关的一个或多个纳税申报相关的税务信息; 与特定税务实体相关的一个或多个税务登记册有关的税务资料; 或与特定纳税实体相关的一个或多个纳税支付相关的税务信息。
    • 10. 发明授权
    • Methods and apparatus for reducing correlation sidelobe interference in
seismic profiling systems
    • 减少地震剖面系统相关旁瓣干扰的方法和装置
    • US4799201A
    • 1989-01-17
    • US562269
    • 1983-12-16
    • David E. Nelson
    • David E. Nelson
    • G01V1/37G01V1/36
    • G01V1/375
    • In seismic profiling systems utilizing sweeps of signals which change in repetition frequency during the transmission interval, interference results from a spurious correlation against an interfering sweep, usually produced by the first break reflection of a simultaneously transmitted sweep which is in the opposite sense for 3-D surveying or from another source. The first break interfering sweep repeats while correlating with time slipped replicas in surveying for deeper and deeper reflecting interfaces and appears as correlation sidelobe interference which has a significant contribution to the correlator output only when the interfering sweep and the replica are in a condition where their frequencies are identical or nearly so. This condition is known as stationary phase. The interference is reduced without adversely affecting the correlation integral of the sweep reflected from the reflection interface of interest by muting either input to the correlator for a short period of time surrounding the points of stationary phase between the interfering sweep from the first break and the replica or by selectively pre-whitening the received sweep signal prior to correlation. This action effectively removes the first break correlation noise without significantly reducing the correlation of the desired weak reflection with the replica and may also be used to remove harmonic ghost interference. 3-D surveys can therefore be conducted with sources of the upsweep and downsweep operating simultaneously, and surveys can be conducted even in the presence of interference from another source, as on an interfering surveying ship.
    • 在利用在传输间隔期间重复频率变化的信号扫描的地震剖析系统中,干扰源于与干扰扫描有关的杂乱相关,通常由同时传输的扫描的第一次断裂反射产生,该扫描与3- 或来自另一个来源。 第一次中断干扰扫描在与深度和深度反射界面的测量中相对应的时间滑动复制相关时出现,并且显示为相关旁瓣干扰,只有当干扰扫描和副本处于其频率 相同或接近。 这种情况称为固定相。 通过将来自相关器的输入之间的相对稳定相位的周期在围绕来自第一次断开的干扰扫描和复制品之间的稳定相位点的静态相位静噪,从而降低干扰,而不会不利地影响从感兴趣的反射界面反射的扫描的相关积分 或者通过在相关之前选择性地对接收到的扫描信号进行预白化。 该动作有效地消除了第一个中断相关噪声,而不会显着地减少所需的弱反射与副本的相关性,并且还可用于去除谐波重影干扰。 因此,三维调查可以同时进行上升和下行操作的来源,即使在另一个来源的干扰下也可以进行调查,如在干扰测量船上。