中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

30 records (took 0.021 seconds)

    Self-calibrating electronic distance measurement instrument
    11.
    发明授权
    Self-calibrating electronic distance measurement instrument 有权

    公开(公告)号：US06670913B1

    公开(公告)日：2003-12-30

    申请号：US09163286

    申请日：1998-09-29

    Applicant: Nicholas C. Talbot ,  Michael V. McCusker

    Inventor： Nicholas C. Talbot ,  Michael V. McCusker

    IPC: G01S514

    CPC classification number: G01C15/002 ,  G01S7/4021 ,  G01S7/497 ,  G01S17/023 ,  G01S19/14 ,  G01S19/235 ,  G01S19/37

    Abstract: A combined satellite positioning and electro-optical total station system includes a reference oscillator that provides local oscillator signals for a satellite navigation receiver and a precision frequency source for use by an electronic distance meter. When the satellite navigation receiver is locked onto and tracking orbiting navigation satellites, the highly precise cesium-rubidium clocks in the navigation satellite system can be used as standards to control the reference oscillator in the combined satellite positioning and electro-optical total station system. Baseline measurements made by the electronic distance meter are therefore not subject to mis-calibrations and drift as long as the satellite navigation receiver is locked onto and tracking the orbiting navigation satellites.

    Centimeter accurate global positioning system receiver for on-the-fly real-time kinematic measurement and control
    12.
    发明授权
    Centimeter accurate global positioning system receiver for on-the-fly real-time kinematic measurement and control 失效
    厘米精确的全球定位系统接收器，用于实时运动测量和控制

    公开(公告)号：US5602741A

    公开(公告)日：1997-02-11

    申请号：US644422

    申请日：1996-05-10

    Applicant: Nicholas C. Talbot ,  Michael T. Allison ,  Mark E. Nichols

    Inventor： Nicholas C. Talbot ,  Michael T. Allison ,  Mark E. Nichols

    IPC: G01S19/44 ,  G01S5/14 ,  G01S19/25 ,  G01S3/02 ,  G01S5/02 ,  G06F165/00

    CPC classification number: G01S19/44 ,  G01S19/04 ,  G01S19/32

    Abstract: A system embodiment of the present invention comprises a fixed and a roving pair of four-observable GPS receivers and a communication link between them for double differencing code and carrier measurements. Carrier phase integer ambiguities are resolved efficiently by searching the simultaneous narrow-lane intersections of both the L1 and L2 wave fronts propagated by the GPS satellites being tracked. External constraint information, such as elevation, is additionally used to speed up integer ambiguity resolution. Data between the reference station and the rover is communicated in compressed form at a regular interval, e.g., once a second at each epoch, and demi-measurements of carrier phase are obtained more frequently, e.g., ten times a second, and used to propagate solutions between epochs.

    Abstract translation: 本发明的系统实施例包括固定和粗纱四对可观测的GPS接收机以及它们之间的通信链路用于双差分码和载波测量。 通过搜索正被跟踪的GPS卫星传播的L1和L2波前的同时窄车道交叉，有效解决载波相位整数模糊度。 外部约束信息，如高程，另外用于加速整数模糊度分辨率。 参考站和流动站之间的数据以规则的间隔以压缩的形式进行通信，例如每个时期一次一次，并且更频繁地获得载波相位的测量，例如每秒十次，并用于传播 时代之间的解决方案

    Pole-tilt sensor for surveyor range pole
    13.
    发明授权
    Pole-tilt sensor for surveyor range pole 失效
    用于测量机杆杆的倾斜传感器

    公开(公告)号：US5512905A

    公开(公告)日：1996-04-30

    申请号：US329213

    申请日：1994-10-27

    Applicant: Mark E. Nichols ,  Nicholas C. Talbot

    Inventor： Mark E. Nichols ,  Nicholas C. Talbot

    IPC: G01C15/06 ,  G01S5/14 ,  G01S19/04 ,  G01S19/10 ,  G01S19/44 ,  G01S19/46 ,  H04B7/185 ,  G01S5/02

    CPC classification number: G01S19/35 ,  G01C15/06 ,  G01S19/32 ,  G01S19/41

    Abstract: A surveyor range pole, for example, equipped with a GPS receiver and antenna mounted at the top end, a battery mounted at the bottom end to better balance the pole, a tilt sensor and a direction sensor. The tilt sensor and direction sensor provide information about the vector that lies between the top and the bottom points of the range pole. The GPS receiver computes the position of the top end of the range pole from GPS satellite signals received by the GPS at the top end, and then computes the position of the bottom end of the range pole with the vector information. A variable length, telescoping range pole includes a linear transducer for automatically measuring the overall length of the range pole and contributing that length information to the vector calculation.

    Abstract translation: 例如，测量机杆杆装备有安装在顶端的GPS接收器和天线，安装在底端的电池以更好地平衡杆，倾斜传感器和方向传感器。 倾斜传感器和方向传感器提供关于范围极点的顶点和底点之间的矢量的信息。 GPS接收机根据GPS在顶端接收的GPS卫星信号计算距离极点的顶端位置，然后用矢量信息计算距离极点底端的位置。 可变长度伸缩范围杆包括线性换能器，用于自动测量范围杆的总长度，并将该长度信息作为向量计算。

    Method and system for location-dependent time-specific correction data
    14.
    发明授权
    Method and system for location-dependent time-specific correction data 有权
    用于位置相关时间特定校正数据的方法和系统

    公开(公告)号：US08134497B2

    公开(公告)日：2012-03-13

    申请号：US12241451

    申请日：2008-09-30

    Applicant: James M. Janky ,  Ulrich Vollath ,  Nicholas C. Talbot

    Inventor： James M. Janky ,  Ulrich Vollath ,  Nicholas C. Talbot

    IPC: G01S19/41 ,  G01S19/05 ,  G01S19/07

    CPC classification number: G01S19/07 ,  G01S19/43

    Abstract: A method and system for delivery of location-dependent time-specific corrections. In one embodiment, a first extended-lifetime correction for a first region is generated. A distribution timetable is used to determine a first time interval for transmitting the first extended-lifetime correction to the first region. The first extended-lifetime correction is then transmitted via a wireless communication network to said first region in accordance with said distribution timetable.

    Abstract translation: 一种用于传送位置相关时间特定校正的方法和系统。 在一个实施例中，产生用于第一区域的第一延长寿命校正。 分配时间表用于确定用于将第一延长寿命校正发送到第一区域的第一时间间隔。 然后，根据所述分配时间表，第一延长寿命校正通过无线通信网络发送到所述第一区域。

    METHOD AND SYSTEM FOR LOCATION-DEPENDENT TIME-SPECIFIC CORRECTION DATA
    18.
    发明申请
    METHOD AND SYSTEM FOR LOCATION-DEPENDENT TIME-SPECIFIC CORRECTION DATA 审中-公开
    用于位置依赖时间特定校正数据的方法和系统

    公开(公告)号：US20120146847A1

    公开(公告)日：2012-06-14

    申请号：US13403775

    申请日：2012-02-23

    Applicant: James M. Janky ,  Ulrich Vollath ,  Nicholas C. Talbot

    Inventor： James M. Janky ,  Ulrich Vollath ,  Nicholas C. Talbot

    IPC: G01S19/40 ,  G01S19/07

    CPC classification number: G01S19/07 ,  G01S19/43

    Abstract: A method and system for delivery of location-dependent time-specific corrections. In one embodiment, a first extended-lifetime correction for a first region is generated. A distribution timetable is used to determine a first time interval for transmitting the first extended-lifetime correction to the first region. The first extended-lifetime correction is then transmitted via a wireless communication network to said first region in accordance with said distribution timetable.

    Abstract translation: 一种用于传送位置相关时间特定校正的方法和系统。 在一个实施例中，产生用于第一区域的第一延长寿命校正。 分配时间表用于确定用于将第一延长寿命校正发送到第一区域的第一时间间隔。 然后，根据所述分配时间表，第一延长寿命校正通过无线通信网络发送到所述第一区域。

    REFINING A POSITION ESTIMATE OF A LOW EARTH ORBITING SATELLITE
    19.
    发明申请
    REFINING A POSITION ESTIMATE OF A LOW EARTH ORBITING SATELLITE 有权
    修改低地面对等卫星的位置估计

    公开(公告)号：US20090182502A1

    公开(公告)日：2009-07-16

    申请号：US12336177

    申请日：2008-12-16

    Applicant: Bruce D. Riter ,  James M. Janky ,  Nicholas C. Talbot ,  Ulrich Vollath

    Inventor： Bruce D. Riter ,  James M. Janky ,  Nicholas C. Talbot ,  Ulrich Vollath

    IPC: G01S1/00 ,  G01C21/02

    CPC classification number: G01S19/40 ,  G01S19/07

    Abstract: In a method for refining a position estimate of a low earth orbiting (LEO) satellite a first position estimate of a LEO satellite is obtained with a GNSS receiver on-board the LEO satellite. The first position estimate is communicated to a Virtual Reference Station (VRS) processor. VRS corrections are received at the LEO satellite, the VRS corrections having been calculated for the first position estimate by the VRS processor. The VRS corrections are processed on-board the LEO satellite such that a VRS corrected LEO satellite position estimate of the LEO satellite is generated for the first position estimate.

    Abstract translation: 在用于改善低地球轨道（LEO）卫星的位置估计的方法中，利用LEO卫星上的GNSS接收机获得LEO卫星的第一位置估计。 第一位置估计被传送到虚拟参考站（VRS）处理器。 在LEO卫星接收到VRS校正，VRS校正是由VRS处理器计算出的第一位置估计值。 在LEO卫星上处理VRS校正，以便为第一位置估计生成LEO卫星的VRS校正LEO卫星位置估计。

    Mobile radio positioning aided by single fan laser
    20.
    发明申请
    Mobile radio positioning aided by single fan laser 有权
    移动无线电定位辅助单扇激光

    公开(公告)号：US20080144020A1

    公开(公告)日：2008-06-19

    申请号：US12002099

    申请日：2007-12-13

    Applicant: Mark E. Nichols ,  Nicholas C. Talbot ,  Gary L. Cain

    Inventor： Mark E. Nichols ,  Nicholas C. Talbot ,  Gary L. Cain

    IPC: G01C1/00 ,  G01B11/26

    CPC classification number: G01S19/04 ,  G01S19/07 ,  G01S19/10 ,  G01S19/44 ,  G01S19/46

    Abstract: The method of mobile radio positioning aided by a single fan laser comprising: generating a single sloping fan beam by using a stationary fan laser transmitter positioned in a location with known coordinates; detecting the single sloping fan beam by using the mobile laser detector; receiving the averaged low-passed filtered estimate of angular rate of the laser beam; receiving the plurality of main time tags; receiving the plurality of additional time tags; and timing the fan laser beam strike at the rover's location to improve an accuracy in determination of position coordinates of the rover.

    Abstract translation: 一种由单个风扇激光辅助的移动无线电定位方法，包括：通过使用定位在已知坐标位置的固定风扇激光发射机产生单个倾斜风扇光束; 通过使用移动式激光探测器检测单个倾斜扇形光束; 接收激光束的角速率的平均低通滤波估计值; 接收多个主时间标签; 接收所述多个附加时间标签; 并且定时使风扇激光束在流动站的位置处打击，以提高确定流动站的位置坐标的准确性。

Patent Agency Ranking