SEISMIC DATA APPARATUS AND METHODS
    1.
    发明申请
    SEISMIC DATA APPARATUS AND METHODS 有权
    地震数据设备及方法

    公开(公告)号:US20120140594A1

    公开(公告)日:2012-06-07

    申请号:US12958158

    申请日:2010-12-01

    IPC分类号: G01V1/36

    CPC分类号: G01V1/375

    摘要: Methods and apparatus are provided related to seismic sensor data. Seismic sensor signaling is digitally sampled in accordance with a local clock and without synchronization to standardized time. Timestamp data is used to synthesize data correspondent to an artificial stimulus waveform. Cross-correlation of the synthesized data with the seismic sensor data yields a correlation result. The correlation result can be scaled to an original starting time for the seismic data sampling. The scaled correlation result can be stored in computer-accessible media and subject to further processing or interpretation.

    摘要翻译: 提供了与地震传感器数据相关的方法和装置。 地震传感器信号根据本地时钟进行数字采样,无需与标准化时间同步。 时间戳数据用于合成与人造刺激波形相对应的数据。 合成数据与地震传感器数据的相互关系产生相关结果。 相关结果可以缩放到地震数据采样的原始起始时间。 缩放的相关结果可以存储在计算机可访问的媒体中,并进行进一步的处理或解释。

    WIRELESS SENSOR NODE AND METHOD
    2.
    发明申请
    WIRELESS SENSOR NODE AND METHOD 审中-公开
    无线传感器节点和方法

    公开(公告)号:US20130038358A1

    公开(公告)日:2013-02-14

    申请号:US13206754

    申请日:2011-08-10

    IPC分类号: H03L7/00

    摘要: Determining time latency at a sensor node in a mesh network. A beacon time is received at the sensor node from an upstream node, the beacon time offset from global time by the latency. The latency, the global time, and a corresponding local time are determined at the sensor node.

    摘要翻译: 确定网状网络中传感器节点的时间延迟。 在传感器节点从上游节点接收信标时间,信标时间偏离全局时间延迟。 在传感器节点处确定等待时间,全局时间和相应的本地时间。

    Speed control system for earth working apparatus
    4.
    发明授权
    Speed control system for earth working apparatus 有权
    土方工程装置速度控制系统

    公开(公告)号:US08733477B1

    公开(公告)日:2014-05-27

    申请号:US12911609

    申请日:2010-10-25

    申请人: David M. Cook

    发明人: David M. Cook

    IPC分类号: B62D11/00 B62D11/18 A01B45/02

    摘要: A speed control system for an earth working apparatus. The speed control system includes a steering structure and a speed control lever movably coupled to the steering structure. The speed control lever may be operatively coupled to a self propel system of the earth working apparatus. The speed control lever is at rest in a neutral position, is actuable in a first direction for forward movement of the apparatus, and may be actuable in a second direction for rearward movement of the apparatus.

    摘要翻译: 一种土方工程装置的速度控制系统。 速度控制系统包括转向结构和可移动地联接到转向结构的速度控制杆。 速度控制杆可以可操作地联接到土方工程装置的自推进系统。 速度控制杆在中立位置处于静止状态,可在第一方向上致动以使装置向前运动,并且可在第二方向上致动以使装置向后移动。

    GENERATION OF ADJUSTABLE PHASE REFERENCE WAVEFORM
    5.
    发明申请
    GENERATION OF ADJUSTABLE PHASE REFERENCE WAVEFORM 有权
    可调相位参考波形的生成

    公开(公告)号:US20120112811A1

    公开(公告)日:2012-05-10

    申请号:US13384723

    申请日:2010-02-19

    申请人: David M. Cook

    发明人: David M. Cook

    IPC分类号: H03K7/08 H03K3/017

    CPC分类号: H03K7/08 H03K2005/00286

    摘要: One embodiment provides a system for generating a reference waveform. The system can include a first pulse-width modulation (PWM) channel configured to provide a first PWM waveform having a first duty cycle and a first frequency. A second PWM channel is configured to provide a second PWM waveform having a second duty cycle and the first frequency. Combinational logic is configured to combine the first PWM waveform and the second PWM waveform to generate a phase-shifted reference PWM waveform having the first frequency and a phase shift that is based on the first duty cycle and the second duty cycle.

    摘要翻译: 一个实施例提供了一种用于产生参考波形的系统。 该系统可以包括被配置为提供具有第一占空比和第一频率的第一PWM波形的第一脉冲宽度调制(PWM)通道。 第二PWM通道被配置为提供具有第二占空比和第一频率的第二PWM波形。 组合逻辑被配置为组合第一PWM波形和第二PWM波形以产生具有基于第一占空比和第二占空比的第一频率和相移的移相参考PWM波形。

    Self calibrating radar system
    6.
    发明授权
    Self calibrating radar system 失效
    自校准雷达系统

    公开(公告)号:US5841394A

    公开(公告)日:1998-11-24

    申请号:US872899

    申请日:1997-06-11

    IPC分类号: G01S7/40 G01S13/91 H01Q3/26

    摘要: A radar system is described, which includes a built-in calibration/fault detection apparatus that enables rapid and easy calibration of the system. The system includes a long extrusion (70) forming a feed waveguide (90), a calibration waveguide (92), and a base (94) of a horn antenna. A linear array of TR (transmit/receive) units (42) are mounted on the extrusion, with each having a feed probe (100) that receives a feed signal, changes its phase and amplifies it, and delivers it through a monopole (110) to the horn. The calibration waveguide is coupled through holes (130) to the horn, with a calibration pickup (132) mounted at the end of the calibration waveguide. During calibration, one TR unit at a time is energized, and its output is detected by the calibration pickup to check the amplitude and phase of the TR unit.

    摘要翻译: 描述了雷达系统,其包括内置的校准/故障检测装置,其能够快速和容易地校准系统。 该系统包括形成馈电波导(90)的长挤出(70),校准波导(92)和喇叭天线的基座(94)。 TR(发送/接收)单元(42)的线性阵列安装在挤出件上,每个具有馈送探针(100),其接收馈送信号,改变其相位并放大它,并将其传送通过单极子(110 )到角。 校准波导通过孔(130)耦合到喇叭,校准波导(132)安装在校准波导的末端。 在校准期间,一次一个TR单元通电,其输出由校准拾取器检测,以检查TR单元的幅度和相位。

    Generation of adjustable phase reference waveform
    8.
    发明授权
    Generation of adjustable phase reference waveform 有权
    生成可调相位参考波形

    公开(公告)号:US08653873B2

    公开(公告)日:2014-02-18

    申请号:US13384723

    申请日:2010-02-19

    申请人: David M. Cook

    发明人: David M. Cook

    IPC分类号: H03H11/16 H03K9/08

    CPC分类号: H03K7/08 H03K2005/00286

    摘要: One embodiment provides a system for generating a reference waveform. The system can include a first pulse-width modulation (PWM) channel configured to provide a first PWM waveform having a first duty cycle and a first frequency. A second PWM channel is configured to provide a second PWM waveform having a second duty cycle and the first frequency. Combinational logic is configured to combine the first PWM waveform and the second PWM waveform to generate a phase-shifted reference PWM waveform having the first frequency and a phase shift that is based on the first duty cycle and the second duty cycle.

    摘要翻译: 一个实施例提供了一种用于产生参考波形的系统。 该系统可以包括被配置为提供具有第一占空比和第一频率的第一PWM波形的第一脉冲宽度调制(PWM)通道。 第二PWM通道被配置为提供具有第二占空比和第一频率的第二PWM波形。 组合逻辑被配置为组合第一PWM波形和第二PWM波形以产生具有基于第一占空比和第二占空比的第一频率和相移的移相参考PWM波形。

    Walk-behind soil aerator
    9.
    发明授权
    Walk-behind soil aerator 有权
    落后土壤曝气机

    公开(公告)号:US08291991B1

    公开(公告)日:2012-10-23

    申请号:US12644335

    申请日:2009-12-22

    申请人: David M. Cook

    发明人: David M. Cook

    IPC分类号: A01B45/00

    CPC分类号: A01B45/02

    摘要: A walk-behind soil aerator includes an engine, a differential, and left and right tine assemblies driven by the first and second output shafts of the differential, and a variable speed drive means between the engine and the differential, as well as a control means accessible by an operator walking behind the aerator which allows the operator to make tight turns by gradually reducing the speed of the drive means to a desired slow speed in order for the driven tines to drive the aerator through the turn and then gradually increasing the speed of the drive means without having to change the engine speed.

    摘要翻译: 步行式土壤曝气器包括由差速器的第一和第二输出轴驱动的发动机,差速器和左右齿梳组件,以及在发动机和差速器之间的变速驱动装置,以及控制装置 通过在曝气器后面行走的操作者进行操作,这允许操作者通过逐渐将驱动装置的速度降低到期望的慢速来进行紧密的转动,以便被驱动的齿通过转动驱动曝气器,然后逐渐增加速度 驱动装置而不必改变发动机转速。