公开(公告)号：US12105191B2

公开(公告)日：2024-10-01

申请号：US17500605

申请日：2021-10-13

申请人： GOOGLE LLC

发明人： Andrew Larsen Axley ,  Eric Michael Monsler ,  Marci Meingast

IPC分类号： G01S13/88 ,  G01S1/04 ,  G01S7/00 ,  G01S7/02 ,  G01S7/40 ,  G01S13/56

CPC分类号： G01S13/88 ,  G01S7/003 ,  G01S7/023 ,  G01S13/56 ,  G01S1/04 ,  G08C2200/00

摘要： A radar-enabled device that manages radar interference. In particular, the radar-enabled device detects a radar signal transmitted by a second radar-enabled device, transmits a notification of the detected radar signal, receives localization information associated with the second radar-enabled device, and sets a device location based on the received localization information. Additionally, the radar-enabled device may adjust a timing of radar signal transmissions to avoid subsequent detections of radar signals transmitted by the second radar-enabled device.

公开(公告)号：US20180356529A1

公开(公告)日：2018-12-13

申请号：US15962935

申请日：2018-04-25

申请人： iPosi, Inc.

发明人： Richard M. Lee ,  Eric Derbez ,  Christopher Neil Kurby

IPC分类号： G01S19/21 ,  G01S1/24 ,  G01S1/04

CPC分类号： G01S19/215 ,  G01S1/04 ,  G01S1/24

摘要： Positioning, navigation, and timing (“PNT”) signals, such as those used in GNSS or LORAN systems, may be vulnerable to spoofing attacks. To generate trustworthy time and location data at a receiver, one must at least reduce the likelihood of or be capable of detecting spoofing attacks. Embodiments of the present invention, as presented herein, provide solutions for detecting spoofing of PNT signals. Various aspects incorporated into the described embodiments which assist in detecting spoofing attacks may include but are not limited to: monitoring the SNR of received PNT signals of a first modality and switching over to an alternate PNT modality when an anomaly is detected, comparing data associated with signals of multiple PNT modalities to identify a discrepancy indicative of spoofing on one of the multiple PNT modalities, and implementing a security regime to prevent spoofers from being able to produce perceivably authentic, but corrupt, replica signals of a PNT modality.

公开(公告)号：US20170245101A1

公开(公告)日：2017-08-24

申请号：US15440973

申请日：2017-02-23

申请人： GOOGLE INC.

发明人： Sashikanth Chandrasekaran ,  Michal Palczewski ,  Varouj Chitilian

IPC分类号： H04W4/02 ,  G06Q20/20 ,  G06Q20/24 ,  G06Q20/40 ,  G06Q20/02 ,  G01S1/04 ,  G06Q20/32

CPC分类号： H04W4/02 ,  G01S1/04 ,  G06Q20/02 ,  G06Q20/202 ,  G06Q20/24 ,  G06Q20/3224 ,  G06Q20/405 ,  H04L67/04 ,  H04L67/146 ,  H04L67/18 ,  H04L67/22 ,  H04W4/04 ,  H04W4/80

摘要： A user enters a location with a user device. A beacon device broadcasts a first beacon device code comprising a hardware identifier via a local wireless network at the location. A service application of the user device receives the first beacon device hardware identifier, logs a check-in status of the user, and transmits the check-in status to a service provider system. The beacon device generates, after a predetermined period of time, a subsequent beacon device code comprising a random number to broadcast at the location via the local wireless network. In response to receiving the subsequent beacon device code broadcast by the beacon device, the user device logs and transmits a subsequent check in status to the service provider system via the network. The service provider system provides services to the user device or another device at the location in accordance with the check-in status of the user device.

公开(公告)号：US09301092B2

公开(公告)日：2016-03-29

申请号：US14038775

申请日：2013-09-27

申请人： Jung-Tang Huang

发明人： Jung-Tang Huang

IPC分类号： H04W4/02 ,  G01S1/04 ,  G01S1/68

CPC分类号： H04W4/02 ,  G01S1/04 ,  G01S1/68

摘要： An earth positioning system (EPS) is provided. The EPS includes a plurality of fixed LED lights with communication functions and a mobile communications device. A cloud computer and at least one map marked with world coordinates of the fixed LED lights may be further included. The LED light includes a substrate, at least one LED die, a power supply, a wireless communication module, a control unit and a housing. The LED lights may be arranged in indoor and outdoor environments, with coordinates represented in longitude, latitude and altitude. The coordinates are included in a map data of the cloud computer. When the mobile communication device moves with its carrier, the world coordinates of the mobile communication device can be located based on the coordinates of the LED lights nearby or based on the unique IDs of the LED lights together with the aforementioned map.

摘要翻译： 提供地球定位系统（EPS）。 EPS包括具有通信功能的多个固定LED灯和移动通信设备。 可以进一步包括云计算机和至少一个标有固定LED灯的世界坐标的地图。 LED灯包括基板，至少一个LED管芯，电源，无线通信模块，控制单元和外壳。 LED灯可以安排在室内和室外环境中，坐标以经度，纬度和高度表示。 坐标被包含在云计算机的地图数据中。 当移动通信设备与其载波一起移动时，可以基于附近的LED灯的坐标或者基于LED灯的唯一ID以及上述地图来定位移动通信设备的世界坐标。

公开(公告)号：US20150355308A1

公开(公告)日：2015-12-10

申请号：US14762995

申请日：2014-04-08

申请人： NTT DOCOMO INC.

发明人： Masanori ISHIDA ,  Shigeru SEKIGUCHI ,  Kouki HAYASHI ,  Shin NAKAMATSU ,  Ryuutarou HOSOI

IPC分类号： G01S1/04 ,  H04W72/12

CPC分类号： G01S1/04 ,  G01S1/047 ,  G01S5/0263 ,  G01S5/12 ,  H04M1/7253 ,  H04M1/72544 ,  H04M2250/04 ,  H04W4/00 ,  H04W4/80 ,  H04W8/005 ,  H04W72/12

摘要： A method to be executed by a user terminal for searching for locations of one or more wireless devices that are located within an area in which the one or more wireless devices can wirelessly communicate with the user terminal, wherein each of the one or more wireless devices periodically transmits a beacon signal. The method includes detecting a number of the one or more wireless devices that are located within the area based on the beacon signals; determining a transmission period for transmitting the beacon signals depending on the number of the one or more wireless devices; and instructing the one or more wireless devices that are located within the area to transmit the beacon signals in accordance with the determined transmission period.

摘要翻译： 一种由用户终端执行的用于搜索位于所述一个或多个无线设备可与所述用户终端无线通信的区域内的一个或多个无线设备的位置的方法，其中所述一个或多个无线设备 周期性地发送信标信号。 该方法包括基于信标信号检测位于该区域内的一个或多个无线设备的数量; 根据所述一个或多个无线设备的数量确定用于发送所述信标信号的传输周期; 并且指示位于该区域内的一个或多个无线设备根据所确定的传输周期来传送信标信号。

公开(公告)号：US08878666B2

公开(公告)日：2014-11-04

申请号：US13773396

申请日：2013-02-21

申请人： Kyo Koan Chu

发明人： Kyo Koan Chu

IPC分类号： G08B1/08 ,  G08B7/06 ,  G01S1/04 ,  G01C3/08 ,  H01K1/62 ,  G01S5/02

CPC分类号： G08B7/062 ,  G01C3/08 ,  G01C21/206 ,  G01S1/04 ,  G01S5/0231 ,  G08B7/066 ,  H01K1/62

摘要： An emergency exit sign having a beacon module for indoor positioning and an indoor positioning system using the same are provided. The emergency exit sign includes a power supply unit, an AC/DC converter, an indoor positioning beacon module, an LED lamp, and a charger. The power supply unit receives an input of a power source and supplies the power source. The AC/DC converter converts the power source supplied and supplies a driving power source. The indoor positioning beacon module periodically wireless transmits a beacon signal including a beacon ID through a built-in antenna. The LED lamp is installed within the housing such that the lamp is positioned in rear of the display. When a power source is not supplied from the power supply unit, the charger supplies a driving power source.

摘要翻译： 提供具有用于室内定位的信标模块和使用其的室内定位系统的紧急出口标志。 紧急出口标志包括电源单元，AC / DC转换器，室内定位信标模块，LED灯和充电器。 电源单元接收电源的输入并提供电源。 AC / DC转换器转换所提供的电源并提供驱动电源。 室内定位信标模块周期性地通过内置天线发射包括信标ID的信标信号。 LED灯安装在外壳内，使得灯位于显示器的后面。 当不从电源单元供电时，充电器提供驱动电源。

公开(公告)号：US08188921B2

公开(公告)日：2012-05-29

申请号：US12562875

申请日：2009-09-18

申请人： David Allen Marks ,  Alexander James Serriere

发明人： David Allen Marks ,  Alexander James Serriere

IPC分类号： G01S3/02

CPC分类号： G01S5/0226 ,  G01S1/04 ,  G01S5/0236 ,  G01S5/14

摘要： A method to support client device position discovery within a building includes ascribing building position coordinates to beacons within the building. The building position coordinates are converted to physical position coordinates. The physical position coordinates are augmented with at least one additional parameter that supports position resolution. A client device communicates with accessed beacons positioned within the building. A beacon location database characterizing the physical locations of the accessed beacons is also accessed. The physical location of the client device is computed based upon the physical locations of the accessed beacons.

摘要翻译： 支持建筑物内的客户端位置发现的方法包括将建筑物位置坐标归因于建筑物内的信标。 建筑物位置坐标转换为物理位置坐标。 物理位置坐标增加至少一个支持位置分辨率的附加参数。 客户端设备与位于建筑物内的所访问的信标通信。 还访问了表征所访问的信标的物理位置的信标位置数据库。 基于所访问的信标的物理位置来计算客户端设备的物理位置。

公开(公告)号：US07826343B2

公开(公告)日：2010-11-02

申请号：US10935833

申请日：2004-09-07

申请人： Norman F. Krasner

发明人： Norman F. Krasner

IPC分类号： H04J11/00

CPC分类号： G01S1/04 ,  G01S1/042 ,  G01S1/045 ,  G01S1/20 ,  G01S5/10 ,  H04L27/2601

摘要： Position location signaling system, apparatus, and method are disclosed. Position location beacons can each be configured to transmit a frequency interlaced subset of orthogonal frequencies spanning substantially an entire channel bandwidth. The orthogonal frequencies can be pseudorandomly or uniformly spaced, and each beacon can be allocated an equal number of orthogonal frequencies. Each frequency of the interlaced subset of orthogonal frequencies can be modulated with an element of a predetermined data sequence. A mobile device can receive one or more of the beacon signals and determine a position using a position location algorithm that determines position in part on an arrival time of the beacon signal. Where the mobile device can receive three or more beacon signals, the mobile device can perform position location by trilateration to the beacon positions based, for example, on a time difference of arrival.

摘要翻译： 公开了位置信号系统，装置和方法。 每个位置信标都可以被配置为发送跨越基本上整个信道带宽的正交频率的频率隔行的子集。 正交频率可以是伪随机的或均匀的间隔，并且每个信标可​​以被分配相等数目的正交频率。 可以用预定数据序列的元素来调制正交频率的隔行子集的每个频率。 移动设备可以接收一个或多个信标信号，并且使用位置定位算法确定位置，该位置算法部分地基于信标信号的到达时间来确定位置。 在移动设备可以接收三个或更多个信标信号的情况下，移动设备可以例如基于到达时间差，通过三边测量到信标位置来执行位置定位。

公开(公告)号：US20090284427A1

公开(公告)日：2009-11-19

申请号：US12427102

申请日：2009-04-21

申请人： Rene Ceccom ,  Philippe Besson ,  Christian Nguyen

发明人： Rene Ceccom ,  Philippe Besson ,  Christian Nguyen

IPC分类号： H01Q1/28 ,  H01Q1/42 ,  H01Q1/52

CPC分类号： H01Q1/28 ,  G01S1/04 ,  G01S1/18 ,  H01Q1/50

摘要： The invention concerns a unit having a glidepath aerial (1) and a support organ (2) designed to be mounted on the front landing gear of an aircraft, with said landing gear forming an electrically conductive ground plane. According to the invention: this aerial (1) is mounted on the support organ (2) and is electrically insulated from this support organ (2) by insulating elements, the support organ (2) has a longitudinal dimension at least equal to around one quarter of the wavelength λ at which the aerial functions, so that the distance separating this aerial (1) and the ground plane is greater than λ/4, and the aerial (1) also has a transmission line (13, 15) designed to connect the aerial (1) to a receiver in the aircraft; this transmission line (13, 15) is surrounding by an electromagnetic shielding element (12) serving as a faradization screen for the transmission line (13, 15), and this element is designed to be electrically connected to the ground plane.

摘要翻译： 本发明涉及具有滑翔天线（1）和设计成安装在飞行器的前起落架上的支撑器（2）的单元，所述起落架形成导电接地平面。 根据本发明：该天线（1）安装在支撑器件（2）上并且通过绝缘元件与该支撑器件（2）电绝缘，支撑器官（2）具有至少等于大约一个的纵向尺寸 天线的波长λ的四分之一起作用，使得分离该天线（1）和接地平面的距离大于λ/ 4，并且天线（1）还具有传输线（13,15），设计成 将天线（1）连接到飞机上的接收器; 该传输线（13,15）由用作传输线（13,15）的法拉第屏蔽的电磁屏蔽元件（12）围绕，并且该元件被设计为电连接到接地层。

公开(公告)号：US5978744A

公开(公告)日：1999-11-02

申请号：US69031

申请日：1998-04-27

申请人： Kenneth W. McBride

发明人： Kenneth W. McBride

IPC分类号： G01S5/02 ,  G01S19/04

CPC分类号： G01S1/04 ,  G01S5/02

摘要： A system for improving the accuracy of location coordinate determined in a survey of a chosen region, using a computer. A grid of spaced apart points is imposed on the region, and a set of survey control points is provided. A "near set" of nearest survey control points is associated with each grid point. For each grid point, a transformation T from a first (global) datum and coordinate system to a second (local) datum and coordinate system is determined that minimizes a collective difference between coordinates of each survey control point in the near set and the corresponding coordinates of that survey control point under the transformation T. For one, two or three coordinates of each grid point, a difference .DELTA. between the coordinate(s) of the grid point in the near set and the corresponding coordinate(s) of that grid point under the transformation T is computed. An interpolation function is determined that approximately matches the coordinate(s) difference .DELTA. at each grid point. The interpolation function provides a continuous datum-to-datum mapping between all points of the first and the second coordinate systems. Determination of location of each survey point may use GPS, GLONASS, modified LEO, LORAN or any other suitable location determination system.

摘要翻译： 一种用于使用计算机提高在所选区域的调查中确定的位置坐标精度的系统。 在该区域上施加间隔开的网格，并且提供一组测量控制点。 最近测量控制点的“近组”与每个网格点相关联。 对于每个网格点，确定从第一（全局）基准和坐标系到第二（局部）基准和坐标系的变换T，其最小化近组中每个测量控制点的坐标与相应坐标之间的集合差 对于每个网格点的一个，两个或三个坐标，近组中网格点的坐标与该网格点的对应坐标之间的差DELTA 在变换T下进行计算。 确定与每个网格点处的坐标差DELTA近似匹配的插值函数。 内插函数提供第一和第二坐标系的所有点之间的连续数据对数据映射。 确定每个测点的位置可以使用GPS，GLONASS，修改的LEO，LORAN或任何其他合适的位置确定系统。