SYSTEM AND METHOD FOR DETERMINING SATELLITE IMAGE LOSS AND COMPUTER-READABLE RECORDING MEDIUM THEREFOR

    公开(公告)号:US20180124388A1

    公开(公告)日:2018-05-03

    申请号:US15794900

    申请日:2017-10-26

    CPC classification number: H04N17/002 B64G1/00 G06T3/4007 H04B7/185

    Abstract: A system and a method for determining a satellite image loss and a computer-readable recording medium therefor are provided. The satellite image loss determination system includes a data receiving unit configured to receive packet data including satellite image data, time information, and a flag value, and angle data of a scan mirror that generates the satellite image data; a data comparing unit configured to compare the angle data received by the data receiving unit with angle data of the scan mirror previously determined in correspondence with the packet data; and an image loss determining unit configured to determine whether a loss has occurred in a satellite image generated from the satellite image data in consideration of a result of comparison of the data comparing unit.

    APPARATUS AND METHOD FOR CONTROLLING SPEED OF SATELLITE ANTENNA

    公开(公告)号:US20170310001A1

    公开(公告)日:2017-10-26

    申请号:US15381483

    申请日:2016-12-16

    Abstract: Provided is an apparatus for controlling a driving speed of an antenna of a mobile satellite travelling in an orbit. The apparatus may include a calculator configured to calculate an azimuth position range and an elevation position range for an effective beam width of the antenna based on an antenna orientation at which the antenna of the mobile satellite is oriented correctly to a ground station from a point in the orbit, and a controller configured to control a speed of the antenna based on a first azimuth in the azimuth position range and a first elevation in the elevation position range.

    DETECTING AND LOCALIZATION METHOD OF UNKNOWN SIGNAL USING AIRCRAFT WITH ADS-B SYSTEM

    公开(公告)号:US20170131411A1

    公开(公告)日:2017-05-11

    申请号:US15214223

    申请日:2016-07-19

    Abstract: A method of detecting an unknown signal and estimating a source location of the unknown signal using aircraft based on an automatic dependent surveillance-broadcast (ADS-B) system is provided. The method includes a first step (S100′) for obtaining from a plurality of airborne aircrafts provided with a network system, an aircraft signal transmitted to neighboring aircraft. The method further includes a second step (S200′) for detecting, by one of the plurality of aircraft, a presence of the unknown signal in the aircraft signal based on one of a time difference of arrival (TDOA) method, a time of arrival (TOA) method, and an angle of arrival (AOA) method. The method further includes a third step (S300′) for estimating the source location of the unknown signal and a fourth step (S400′) for transmitting unknown signal generation information and the source to neighboring aircraft and the ATC through a flight information services-broadcast (FIS-B).

    Cryocooler with variable compression depending on variations in load
    116.
    发明授权
    Cryocooler with variable compression depending on variations in load 有权
    根据负载变化,可变压缩的低温冷却器

    公开(公告)号:US09587860B2

    公开(公告)日:2017-03-07

    申请号:US13947282

    申请日:2013-07-22

    CPC classification number: F25B9/14 F25B2400/073

    Abstract: A cryocooler, includes a cylinder filled with gas. A piston rectilinearly reciprocates inside of the cylinder and compresses or expands the gas. A connecting rod has a first side coupled to the piston and moves with the piston, and a second side having a first thread along an outer circumference thereof. A linear motor rectilinearly reciprocates a motor shaft toward the connecting rod in accordance with a control signal. A sleeve has two open sides, so that an end portion of the motor shaft can be supported by and inserted in one open side, and the second side of the connecting rod can be inserted in the other open side, and an inner circumference of the sleeve is formed with a second thread that engages with the first thread of the connecting rod and rotates to adjust a distance between the motor shaft and the connecting rod.

    Abstract translation: 一个低温冷却器包括一个充满气体的气瓶。 活塞在气缸内部直线往复运动并压缩或膨胀气体。 连杆具有联接到活塞并与活塞一起移动的第一侧,并且具有沿其外圆周的第一螺纹的第二侧。 线性电动机根据控制信号使马达轴向连杆往复运动。 套筒具有两个敞开的侧面,使得电动机轴的端部能够被支撑并插入一个开口侧,并且连杆的第二侧可以插入另一个开口侧,并且连接杆的内周 套筒形成有与连杆的第一螺纹接合的第二螺纹并且旋转以调节电动机轴和连杆之间的距离。

    SPHERE MAGNETIC LEVITATION SYSTEM AND METHOD OF OPERATING SPHERE MAGNETIC LEVITATION SYSTEM
    117.
    发明申请
    SPHERE MAGNETIC LEVITATION SYSTEM AND METHOD OF OPERATING SPHERE MAGNETIC LEVITATION SYSTEM 审中-公开
    球形磁感应系统及其运行方法

    公开(公告)号:US20170046969A1

    公开(公告)日:2017-02-16

    申请号:US15305896

    申请日:2014-08-19

    Inventor: Seon Ho Lee

    CPC classification number: G09B9/52 B64G1/283 B64G7/00 G01M99/00 H02K7/09 H02N15/00

    Abstract: Provided is a sphere magnetic levitation system having magnetic-aligning devices that magnetically align the position of a sphere levitated by electromagnets according to whether the sphere is levitated, and a method of operating the sphere magnetic levitation system. The sphere magnetic levitation system includes: a sphere; a plurality of electromagnets symmetrically positioned about the sphere and spaced apart from the sphere at equal distances; and a plurality of magnetic-aligning devices provided around the sphere, and coming into contact with the sphere or separated from the sphere by a predetermined distance according to the modes of the system. The system is operated in one mode from among: an idle mode, in which the magnetic-aligning devices are in direct contact with and support the sphere; and an operation mode, in which the magnetic-aligning devices are separated from the sphere and the sphere is levitated and rotated.

    Abstract translation: 本发明提供一种球磁悬浮系统,其具有磁对准装置,该磁对准装置根据球体是否悬浮,磁性地对准由电磁体悬浮的球体的位置,以及操作球磁悬浮系统的方法。 球磁悬浮系统包括:球体; 围绕球体对称地定位的多个电磁体,并以相等的距离与球体隔开; 以及设置在球体周围并根据系统的模式与球接触或与球体分离预定距离的多个磁对准装置。 该系统以一种模式操作:空闲模式,其中磁对准装置直接接触并支撑球体; 以及操作模式,其中磁对准装置与球体分离并且球体悬浮并旋转。

    APPARATUS FOR MEASURING INPUT TIME INPUT SIGNAL
    118.
    发明申请
    APPARATUS FOR MEASURING INPUT TIME INPUT SIGNAL 审中-公开
    用于测量输入时间输入信号的装置

    公开(公告)号:US20160274189A1

    公开(公告)日:2016-09-22

    申请号:US14407035

    申请日:2014-09-24

    CPC classification number: G01R31/31725 G04F10/005

    Abstract: Provided is an apparatus for measuring an input time of an input signal, and more particularly, an apparatus for measuring an input time of an input signal more precisely than a reference clock using a delay circuit.

    Abstract translation: 提供了一种用于测量输入信号的输入时间的装置,更具体地,涉及一种使用延迟电路,比使用延迟电路的参考时钟更准确地测量输入信号的输入时间的装置。

    Apparatus and method for calculating satellite navigation visibility
    119.
    发明授权
    Apparatus and method for calculating satellite navigation visibility 有权
    用于计算卫星导航可视性的装置和方法

    公开(公告)号:US09221558B2

    公开(公告)日:2015-12-29

    申请号:US14092352

    申请日:2013-11-27

    CPC classification number: B64G1/10 B64G3/00 G01C11/02 G01S19/00

    Abstract: Provided is a satellite navigation visibility calculation apparatus. The satellite navigation visibility calculation apparatus includes a processing unit configured to binarize an input sky view image to create an binary image, an extraction unit configured to extract a plurality of feature points from the binary image, and a calculation unit configured to calculate satellite navigation dilution of precision (DOP) corresponding to the sky view image using the plurality of feature points.

    Abstract translation: 卫星导航可视性计算装置。 卫星导航可视性计算装置包括:处理单元,被配置为二进制化输入的天视图以创建二进制图像;提取单元,被配置为从二值图像提取多个特征点;以及计算单元,被配置为计算卫星导航稀疏 使用多个特征点对应于天视图图像的精度(DOP)。

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