Location Correction through Differential Networks System

    公开(公告)号:US20180120445A1

    公开(公告)日:2018-05-03

    申请号:US15665716

    申请日:2017-08-01

    Inventor: Evan T. Dill

    CPC classification number: G01S19/41 G01S19/04 G01S19/07 G01S19/29 G01S19/43

    Abstract: A method may be executed by a base station or mobile device to improve accuracy of a global positioning system (GPS)-based position or “geoposition” of the mobile device. A time-stamped first set of GPS data may be received via a GPS receiver, e.g., of the base station. A second set of GPS data describing a geoposition of the mobile device is received from the mobile device by the base station. A time of collection of the base station and mobile device GPS data coincides. The GPS data includes code phase and pseudo-range data from each of the GPS satellites, and may include carrier phase data. A predetermined GPS position correction technique is used to generate a corrected geoposition of the mobile device using the GPS data. The corrected geoposition is then transmitted to the mobile device and/or an external response system such as a drone or first responder.

    Current source logic gate
    104.
    发明授权

    公开(公告)号:US09755645B1

    公开(公告)日:2017-09-05

    申请号:US15373689

    申请日:2016-12-09

    CPC classification number: H03K19/0952 H03K19/09403 H03K19/09407 H03K19/20

    Abstract: A current source logic gate with depletion mode field effect transistor (“FET”) transistors and resistors may include a current source, a current steering switch input stage, and a resistor divider level shifting output stage. The current source may include a transistor and a current source resistor. The current steering switch input stage may include a transistor to steer current to set an output stage bias point depending on an input logic signal state. The resistor divider level shifting output stage may include a first resistor and a second resistor to set the output stage point and produce valid output logic signal states. The transistor of the current steering switch input stage may function as a switch to provide at least two operating points.

    Real time radiation monitoring using nanotechnology
    106.
    发明授权
    Real time radiation monitoring using nanotechnology 有权
    使用纳米技术实时辐射监测

    公开(公告)号:US09297907B1

    公开(公告)日:2016-03-29

    申请号:US14205003

    申请日:2014-03-11

    CPC classification number: G01T1/16 B82Y15/00 G01T1/02 G01T1/04 G01T1/28 G01T1/2935

    Abstract: System and method for monitoring receipt and estimating flux value, in real time, of incident radiation, using two or more nanostructures (NSs) and associated terminals to provide closed electrical paths and to measure one or more electrical property change values ΔEPV, associated with irradiated NSs, during a sequence of irradiation time intervals. Effects of irradiation, without healing and with healing, of the NSs, are separately modeled for first order and second order healing. Change values ΔEPV are related to flux, to cumulative dose received by NSs, and to radiation and healing effectivity parameters and/or μ, associated with the NS material and to the flux. Flux and/or dose are estimated in real time, based on EPV change values, using measured ΔEPV values. Threshold dose for specified changes of biological origin (usually undesired) can be estimated. Effects of time-dependent radiation flux are analyzed in pre-healing and healing regimes.

    Abstract translation: 用于监测接收和实时估计入射辐射的通量值的系统和方法,使用两个或多个纳米结构(NS)和相关联的端子来提供闭合的电气路径并测量一个或多个电气特性变化值和与之相关的电气特性变化值 在照射时间间隔的序列期间照射的NS。 NSs的照射,无愈合和愈合的效果分别建模为一级和二级愈合。 变化值&Dgr; EPV与通量,NSs接收的累积剂量以及与NS材料和通量相关的辐射和愈合有效性参数和/或μ有关。 使用测量的&Dgr; EPV值,基于EPV变化值实时估计通量和/或剂量。 可以估计生物来源的特定变化(通常是不期望的)的阈值剂量。 在预愈合和愈合过程中分析了时间依赖性辐射通量的影响。

    Small spacecraft processing and bus architecture

    公开(公告)号:US12181985B1

    公开(公告)日:2024-12-31

    申请号:US17159338

    申请日:2021-01-27

    Abstract: A spacecraft computing system, including: a first processor configured to process data from a payload and a first spacecraft system; a second processor configured to process data from a second spacecraft system; an interface connected to the second processor configured to interface with a third spacecraft system, wherein the second processor is configured to monitor the first processor and to initiate the recovery of the first processor when the first processor experiences a fault, wherein the first processor's processing capacity is greater the second processor's processing capacity, and wherein the second processor is more reliable than the first processor.

Patent Agency Ranking