公开(公告)号：US09464901B1

公开(公告)日：2016-10-11

申请号：US14723518

申请日：2015-05-28

申请人： Douglas A. Bell ,  Sarah Barber ,  James H. Doty

发明人： Douglas A. Bell ,  Sarah Barber ,  James H. Doty

IPC分类号： G01C21/00 ,  G06T11/20 ,  G06T3/40

CPC分类号： G01C21/00 ,  G01C23/005 ,  G06T3/40 ,  G06T11/20 ,  G06T2200/04 ,  G06T2200/28

摘要： A system, device, and method for generating an RNP-scaled waypoint symbology presentable to a pilot are disclosed. The symbology generating system may include a source of source of navigation data, a symbology generator (SG), and a presentation system. The SG may be configured to acquire navigation data representative of one or more distance measurements of an area navigation system or a required navigation performance system; and generate presentation data as a function of each distance measurement. The presentation data could be representative of waypoint symbology presentable to a viewer. In some embodiments, the waypoint symbology may be comprised of a two-dimensional object or a three-dimensional object having a plurality of shapes centered on a reference line, where a size of a first shape may be scaled to a first distance measurement, and a size of a second shape may be scaled to a second distance measurement.

摘要翻译： 公开了一种用于生成可呈现给飞行员的RNP缩放的航点符号系统的系统，设备和方法。 符号系统生成系统可以包括导航数据源，符号生成器（SG）和呈现系统。 SG可以被配置为获取表示区域导航系统或所需导航性能系统的一个或多个距离测量的导航数据; 并产生作为每个距离测量的函数的呈现数据。 呈现数据可以代表向观众呈现的航点符号系统。 在一些实施例中，航点符号系统可以由二维对象或具有以参考线为中心的多个形状的三维物体组成，其中第一形状的尺寸可被缩放到第一距离测量，以及 可以将第二形状的尺寸缩放到第二距离测量。

公开(公告)号：US09325550B1

公开(公告)日：2016-04-26

申请号：US14708809

申请日：2015-05-11

申请人： Carlos J. Chávez ,  James H. Doty

发明人： Carlos J. Chávez ,  James H. Doty

IPC分类号： H04L27/227 ,  H04W24/02 ,  G01S5/02 ,  H04W24/08

CPC分类号： H04L27/2278 ,  G01S5/0215

摘要： Systems and methods for mitigating multipath effects on precision PNT estimation are disclosed. Frequency-domain windowing techniques are disclosed and utilized to mitigate multipath effects on precision PNT estimation for systems employing coherent communication signals. More specifically, to mitigate multipath effects an input signal, the input signal may be channelized into a plurality of carrier-specific signals, and each carrier-specific signal may be correlated against a reference signal to produce a corresponding carrier-specific correlation result. A window function may be applied to the carrier-specific correlation results for the plurality of carriers to produce a set of carrier-specific weighted correlation results. The set of carrier-specific weighted correlation results may be integrated to produce an integrated correlation output, which may then be utilized to facilitate PNT estimation.

摘要翻译： 公开了用于减轻对精确PNT估计的多径效应的系统和方法。 公开并利用频域窗口技术来减轻对采用相干通信信号的系统的精确PNT估计的多路径效应。 更具体地，为了减轻输入信号的多路径效应，输入信号可以被信道化成多个载波特定信号，并且每个载波特定信号可以与参考信号相关，以产生对应的载波特定相关结果。 窗口函数可以应用于多个载波的载波特定相关结果，以产生一组载波特定加权相关结果。 载波特定加权相关结果的集合可以被积分以产生一个综合的相关输出，然后可以利用它来促进PNT估计。

公开(公告)号：US08909471B1

公开(公告)日：2014-12-09

申请号：US13250307

申请日：2011-09-30

申请人： Richard D. Jinkins ,  Richard M. Rademaker ,  Daniel L. Woodell ,  James H. Doty ,  Keith L. Kerley ,  James Alva Young, Jr. ,  Shih-Yih Young

发明人： Richard D. Jinkins ,  Richard M. Rademaker ,  Daniel L. Woodell ,  James H. Doty ,  Keith L. Kerley ,  James Alva Young, Jr. ,  Shih-Yih Young

IPC分类号： G01S5/00

CPC分类号： G01S13/60 ,  G01S13/953 ,  G01S19/49 ,  Y02A90/18

摘要： A position determining voting system that uses Doppler information from an on-board weather radar to improve the system's accuracy and/or fault tolerance includes a comparison function and an error integration function. The comparison function is used to monitor the independent position sources for correct operation, comparing and identifying a position source that should not be used based on its relative error compared with the other position sources and their characteristics. The integration function provides corrections to relative position sources by integrating the data from multiple absolute position sources when they are mutually consistent.

摘要翻译： 使用来自车载天气雷达的多普勒信息来提高系统的精度和/或容错能力的位置确定投票系统包括比较功能和误差积分功能。 比较功能用于监控独立位置源的正确操作，比较和识别与其他位置源及其特征相比不会使用的位置源。 积分功能通过在来自多个绝对位置源的数据相互一致时对其进行整合来对相对位置源进行校正。

公开(公告)号：US5841537A

公开(公告)日：1998-11-24

申请号：US909479

申请日：1997-08-11

申请人： James H. Doty

发明人： James H. Doty

IPC分类号： G01C19/72 ,  G01C21/16 ,  G01C19/66

CPC分类号： G01C19/72 ,  G01C21/16

摘要： An inertial reference system for determining the attitude and rate of change of attitude of a vehicle such as an aircraft is disclosed. Redundancy of the inertial reference system may be accomplished by replacement of one of the fiber optic gyroscopes of an otherwise dual fiber optic gyros installation with a low-cost reference IMU. Failure detection and isolation of a fiber optic gyroscope system may be accomplished with a low-cost reference IMU rather than with an additional fiber optic gyroscope. The information provided by the eliminated fiber optic gyroscope is synthesized from the output of the remaining fiber optic gyroscope and the output of the low-cost reference IMU.

摘要翻译： 公开了一种用于确定诸如飞行器的车辆的姿态和姿态变化率的惯性参考系统。 惯性参考系的冗余可以通过用低成本参考IMU替换另外的双光纤陀螺仪装置的光纤陀螺仪之一来实现。 光纤陀螺仪系统的故障检测和隔离可以用低成本参考IMU而不是额外的光纤陀螺仪实现。 消除的光纤陀螺仪提供的信息是从剩余光纤陀螺仪的输出和低成本参考IMU的输出合成的。

公开(公告)号：US5066868A

公开(公告)日：1991-11-19

申请号：US566182

申请日：1990-08-13

申请人： James H. Doty, II ,  David L. Albean ,  Harold Blatter

发明人： James H. Doty, II ,  David L. Albean ,  Harold Blatter

IPC分类号： H01L21/8234 ,  H01L27/088 ,  H03K5/00 ,  H03K5/13 ,  H03K5/15

CPC分类号： H03K5/133 ,  H03K2005/00195

摘要： Clock phase shifting circuitry includes a cascade connection of inverting amplifiers for generating a plurality of relatively delayed clock signals. Buffer amplifiers couple alternate ones of the inverting amplifiers to a clock phase selection circuit for providing a desired one of said plurality of delayed clock signals. A capacitor is coupled between the output of each inverting amplifier and a point of constant potential. Respective circuits, having an input impedance which emulates the input impedance of the buffer amplifiers, are coupled to the output connections of the inverting amplifiers located between said alternate inverting amplifiers.

摘要翻译： 时钟相移电路包括用于产生多个相对延迟的时钟信号的反相放大器的级联连接。 缓冲放大器将交替的反相放大器耦合到时钟相位选择电路，以提供所述多个延迟的时钟信号中期望的一个。 电容器耦合在每个反相放大器的输出端和恒定电位点之间。 具有模拟缓冲放大器的输入阻抗的输入阻抗的相应电路耦合到位于所述交替反相放大器之间的反相放大器的输出连接。

公开(公告)号：US4727339A

公开(公告)日：1988-02-23

申请号：US924868

申请日：1986-10-30

申请人： James H. Doty, II ,  Walter G. Gibson

发明人： James H. Doty, II ,  Walter G. Gibson

IPC分类号： H03B5/06 ,  H03B5/12 ,  H03K3/80 ,  H03L7/24 ,  H03B5/08

CPC分类号： H03K3/80 ,  H03L7/24

摘要： An amplifier having a resonator coupled between input and output terminals thereof supplies a dot clock signal to a character generator in a television receiver. A feedback control circuit supplies DC bias to the resonator during blanking intervals that preceed lines of characters to be displayed to ensure a consistent starting phase for oscillations, removes the DC bias and supplies operating power to the amplifier during a portion of the active video period of each displayed line for sustaining the oscillations and automatically inhibits the supply of amplifier power at the end of each active line of characters to thereby provide three oscillator operating modes of PRIMED, RUNNING and OFF so as to minimize overall power consumption for the oscillator for each field of displayed characters.

摘要翻译： 耦合在输入和输出端之间的谐振器的放大器向电视接收机中的字符发生器提供点时钟信号。 反馈控制电路在消隐间隔期间提供直流偏压到谐振器，该间隔期望显示字符串，以确保振荡的始终起始阶段，消除直流偏置并在有源视频周期的一部分期间向放大器提供工作功率 每个显示的行用于维持振荡，并且自动禁止在每个有效字符行末端的放大器功率的供应，从而提供PRIMED，RUNNING和OFF的三个振荡器操作模式，以便最小化每个场的振荡器的总功耗 的显示字符。

公开(公告)号：US06592070B1

公开(公告)日：2003-07-15

申请号：US10123928

申请日：2002-04-17

申请人： James H. Doty

发明人： James H. Doty

IPC分类号： F41G700

CPC分类号： F42B15/01 ,  F41G7/305

摘要： An interference-aided navigation system for a rotating vehicle provides rotation angle estimates using interference or jamming signals. An antenna receives interference signals and desired navigation signals. A RF processing function connected to the antenna processes the received interference signals and the desired navigation signals into IF signals. An A/D converter connected to the RF processing function digitizes the interference signals and desired navigation signals and to provide a digitized IF signal. A tracking filter tracks amplitude variations of the interference signals and provides the rotation angle estimate signal of the rotating vehicle.

摘要翻译： 用于旋转车辆的干扰辅助导航系统使用干扰或干扰信号提供旋转角度估计。 天线接收干扰信号和期望的导航信号。 连接到天线的RF处理功能将接收的干扰信号和期望的导航信号处理成IF信号。 连接到RF处理功能的A / D转换器将干扰信号和期望的导航信号数字化并提供数字化的IF信号。 跟踪滤波器跟踪干扰信号的幅度变化并提供旋转车辆的旋转角度估计信号。

公开(公告)号：US06520448B1

公开(公告)日：2003-02-18

申请号：US09879392

申请日：2001-06-12

申请人： James H. Doty ,  Gary A. McGraw

发明人： James H. Doty ,  Gary A. McGraw

IPC分类号： F42B1000

CPC分类号： F41G7/305 ,  F42B15/01

摘要： Attitude of a spinning vehicle is determined by observing at least one of the apparent amplitude modulation and the apparent phase modulation of a navigation signal received from a navigation source. Vectors describing the direction from the vehicle to the navigation source are computed and used to determine attitude relative to the navigation source. Inertial sensors are demodulated to remove rotation artifacts and used to anticipate rapid maneuvers.

摘要翻译： 通过观察从导航源接收的导航信号的视在幅度调制和视在相位调制中的至少一个来确定纺纱车辆的姿态。 计算描述从车辆到导航源的方向的向量，并用于确定相对于导航源的姿态。 惯性传感器被解调以去除旋转伪影并用于预测快速的动作。

公开(公告)号：US4989707A

公开(公告)日：1991-02-05

申请号：US416832

申请日：1989-10-03

申请人： James H. Doty ,  William F. Smith

发明人： James H. Doty ,  William F. Smith

IPC分类号： F16D11/04

CPC分类号： F16D11/04

摘要： A transmission having an inner rotationally mounted shaft (42) with first and second parts (44and 46) and an outer concentric rotationally mounted shaft (49) in accordance with the invention includes a clutch (48) connected to the first and second parts of the inner shaft, which is movable between a first engaged position in which torque may be transmitted through the clutch between the first and second parts and a second position in which torque is not transmitted through the clutch; a transmission, coupling one of the parts of the inner shaft to the outer shaft to transmit torque from the inner shaft to the outer shaft when the inner shaft is rotating; an axially movable mechanism (61-80) disposed outside of and concentric with the outer shaft and projecting through the outer shaft for engaging one of the parts of the inner shaft to move the one part between first and second positions, the axially movable mechanism being movable between first and second positions to cause the one of the parts of the inner shaft to move axially between the first and second positions to move the clutch respectively between the first and second positions to control the transmission of torque between the parts of the inner shaft.

摘要翻译： 具有根据本发明的具有第一和第二部分（44和46）和外部同心旋转安装轴（49）的内部旋转安装轴（42）的变速器包括：离合器（48），连接到第一和第二部分 内轴，其可在其中扭矩可以通过第一和第二部分之间的离合器传递的第一接合位置与扭矩不通过离合器传递的第二位置之间移动; 变速器，当所述内轴旋转时，将所述内轴的所述部分中的一个与所述外轴联接，以将转矩从所述内轴传递到所述外轴; 轴向移动机构（61-80），设置在外轴外并与外轴同心并且突出穿过外轴，用于接合内轴的一个部分，以使第一和第二位置之间的一个部分移动， 可在第一和第二位置之间移动，以使内轴的一个部分在第一和第二位置之间轴向移动，以分别在第一和第二位置之间移动离合器，以控制内轴的部分之间的转矩传递 。

公开(公告)号：US644342A

公开(公告)日：1900-02-27

申请号：US1899717197

申请日：1899-05-17

申请人： JAMES H DOTY ,  UPTON WILLARD

发明人： UPTON WILLARD

CPC分类号： G01N33/085