公开(公告)号：US20240264475A1

公开(公告)日：2024-08-08

申请号：US18164968

申请日：2023-02-06

Applicant: BIANCA CRUZ ,  DANIEL A. TAZARTES ,  GREGORY A. ZIMMERMAN ,  JONATHAN M. WHEELER ,  STEVEN M. KIM

Inventor： BIANCA CRUZ ,  DANIEL A. TAZARTES ,  GREGORY A. ZIMMERMAN ,  JONATHAN M. WHEELER ,  STEVEN M. KIM

IPC: G02F1/095 ,  G01C19/72 ,  G02F1/01 ,  G02F1/09

CPC classification number: G02F1/0955 ,  G01C19/721 ,  G02F1/0136 ,  G02F1/092 ,  G02F2203/50

Abstract: One example includes an optical isolator system. An optical isolator element transmits a first optical beam provided at a first port to be output from a second port and blocks a second optical beam provided at the second port from being output from the first port. The optical beams each include a first component and a second component that are orthogonally linearly polarized. The optical isolator element can provide optical isolation based on transverse shifting the first and second components of the optical beams relative to each other to provide propagation of the first optical beam from the first port to the second port and to prevent propagation of the second optical beam from the second port to the first port. At least one phase adjuster adjusts a relative phase of the first and second components of the first optical beam to align the components of the first optical beam.

公开(公告)号：US20240077315A1

公开(公告)日：2024-03-07

申请号：US17901255

申请日：2022-09-01

Applicant: DANIEL A. TAZARTES ,  NEAL JOSEPH DAHLEN

Inventor： DANIEL A. TAZARTES ,  NEAL JOSEPH DAHLEN

IPC: G01C21/16 ,  G01B11/27

CPC classification number: G01C21/1656 ,  G01B11/27

Abstract: One example includes a navigation system. The navigation system includes an inertial navigation system (INS) that is configured to provide a coordinate frame corresponding to an inertial reference of the INS relative to a geodetic coordinate system. The coordinate frame includes a reference axis that defines a reference orientation of the INS. The system also includes an optical tracking device configured to obtain a reference image to determine an orientation of a boresight axis of the optical tracking device. The system further includes an alignment controller configured to compare the reference axis based on the coordinate frame and the boresight axis based on the reference image to determine an angular misalignment between the reference axis and the boresight axis, and to adjust the reference orientation to align the reference axis to the boresight axis based on the determined angular misalignment.

公开(公告)号：US20140132186A1

公开(公告)日：2014-05-15

申请号：US13676834

申请日：2012-11-14

Applicant: DANIEL A. TAZARTES

Inventor： DANIEL A. TAZARTES

IPC: G01H3/00

CPC classification number: G01H3/00 ,  G01C19/5776

Abstract: A system is provided for controlling the amplitude of a vibrating resonant sensor through a drive signal applied to the resonator. The system comprises a controller that provides the drive signal to a forcer coupled to the resonator to excite the resonator into vibration at its resonant frequency. The system further comprises a buffer having an input node that receives charge of a pickoff capacitor of the resonator that is a measure of the resonator vibration and a current reference waveform. The buffer provides an output that is a difference signal that represents an error of the resonator vibration that corresponds to a difference between the measured resonator vibration and the current reference waveform, wherein the controller adjusts the drive signal in order to null the difference signal.

Abstract translation: 提供一种用于通过施加到谐振器的驱动信号来控制振动谐振传感器的振幅的系统。 该系统包括控制器，该控制器将驱动信号提供给耦合到谐振器的振子，以将谐振器激发到其谐振频率处的振动。 该系统还包括具有输入节点的缓冲器，该输入节点接收作为谐振器振动和电流参考波形的量度的谐振器的检测电容器的电荷。 缓冲器提供输出，其是表示谐振器振动的误差的差分信号，其对应于所测量的谐振器振动与当前参考波形之间的差异，其中控制器调节驱动信号以使差分信号为零。

公开(公告)号：US08224574B2

公开(公告)日：2012-07-17

申请号：US11124724

申请日：2005-05-09

Applicant: Daniel A. Tazartes ,  Charles H. Volk ,  James R. Huddle ,  Jerome S. Lipman ,  Maureen Lipman, legal representative

Inventor： Daniel A. Tazartes ,  Charles H. Volk ,  James R. Huddle ,  Jerome S. Lipman

IPC: G01C21/00

CPC classification number: G01C21/16 ,  G01C25/005

Abstract: An exemplary navigation system uses a master navigation component at a first location in a vehicle and a slave navigation component at a second location that is a variable displacement to the first location due to physical deformation of the vehicle. Static and dynamic location components provide static and dynamic information of the displacement between the first and second locations. An error estimator estimates errors in the navigational measurement data generated by the slave navigation component based on the navigational measurement data generated by the master navigation component and the displacement information provided by the static and dynamic location components. The master navigation component corrects the navigation measurement data of the slave navigation component based on the determined error and translates the corrected navigation measurement data of the slave navigation component into navigational measurement data in its coordinate system.

Abstract translation: 示例性导航系统使用车辆中的第一位置处的主导航部件和由于车辆的物理变形而在第一位置处可变位移的第二位置处的从属导航部件。 静态和动态位置组件提供第一和第二位置之间位移的静态和动态信息。 误差估计器基于由主导航部件生成的导航测量数据和由静态和动态位置分量提供的位移信息来估计由从属导航部件生成的导航测量数据中的误差。 主导航部件基于所确定的误差校正从属导航部件的导航测量数据，并将从属导航部件的校正导航测量数据转换为其坐标系中的导航测量数据。

公开(公告)号：US08203718B2

公开(公告)日：2012-06-19

申请号：US13029059

申请日：2011-02-16

Applicant: Daniel A. Tazartes ,  Kenneth D. Marino

Inventor： Daniel A. Tazartes ,  Kenneth D. Marino

IPC: G01B9/02 ,  G01C19/72

CPC classification number: G01C19/64

Abstract: A gyroscope having photonic crystals for sensing rotation uses the Sagnac effect to determine angular motion. The gyroscope comprises a photonic crystal capable of guiding counter-propagating light beams in a closed path. A light source, coupling, and detection apparatus permits detection of phase changes between the counter-propagating beams, thereby permitting measurement of angular rotation. The photonic crystal comprises a periodic structure of pillars and voids which creates a photonic bandgap waveguide within which light waves in the proper wavelength range propagate with low loss.

Abstract translation: 具有用于感测旋转的光子晶体的陀螺仪使用Sagnac效应来确定角运动。 陀螺仪包括能够在闭合路径中引导反向传播的光束的光子晶体。 光源，耦合和检测装置允许检测反向传播光束之间的相位变化，从而允许角度旋转的测量。 光子晶体包括柱状和空隙的周期性结构，其产生光子带隙波导，其中适当波长范围内的光波以低损耗传播。

公开(公告)号：US06634207B1

公开(公告)日：2003-10-21

申请号：US09686165

申请日：2000-10-10

Applicant: Brian T. Lottman ,  Daniel A. Tazartes

Inventor： Brian T. Lottman ,  Daniel A. Tazartes

IPC: G01C2500

CPC classification number: G01C21/16 ,  G01C25/00

Abstract: The invention is a method and apparatus for improving the accuracy of an inertial navigation system. The method comprises (1) obtaining a measure of the angular velocity of a body frame of reference having a first axis, a second axis, and a third axis, (2) obtaining a measure of the acceleration of a first reference point in the direction of the first axis, a second reference point in the direction of the second axis, and a third reference point in the direction of the third axis, the first, second, and third reference points being fixed in the body frame, and (3) determining compensated acceleration values. A compensated acceleration value is the difference of the measure of acceleration of a reference point and a compensation quantity. A compensation quantity is an estimate of the portion of the acceleration of the reference point resulting from the rotation of the body frame. The method further comprises establishing the optimum navigation center based on a criterion of goodness. The criterion of goodness is minimal weighted acceleration error where acceleration error is a function of the direction of the angular velocity vector and weighted acceleration error is obtained by multiplying the acceleration error by a weighting function and integrating the result over all directions of the angular velocity vector.

Abstract translation: 本发明是提高惯性导航系统精度的方法和装置。 该方法包括：（1）获得具有第一轴线，第二轴线和第三轴线的车身参考系的角速度的测量，（2）获得第一参考点在方向上的加速度的量度 的第一轴，第二基准点和第三轴的第三基准点，第一，第二和第三参考点固定在车体框架中，（3） 确定补偿加速度值。 补偿加速度值是参考点的加速度和补偿量之间的差值。 补偿量是由身体框架的旋转导致的参考点的加速度的部分的估计。 该方法还包括基于良好标准建立最佳导航中心。 良好的标准是最小加权加速度误差，其中加速度误差是角速度矢量方向的函数，加权加速度误差是通过将加速度误差乘以加权函数并将结果积分在角速度矢量的所有方向上而得到的 。

公开(公告)号：US06307631B1

公开(公告)日：2001-10-23

申请号：US09607471

申请日：2000-06-30

Applicant: Daniel A. Tazartes ,  John G. Mark ,  David I. Tazartes

Inventor： Daniel A. Tazartes ,  John G. Mark ,  David I. Tazartes

IPC: G01C1972

CPC classification number: G01C19/72

Abstract: The invention is a method and apparatus for generating a primary pseudorandom bit sequence consisting of a plurality of contiguous P subsequences. Each P subsequence consists of a start sequence of predetermined length followed by a sequence of trailing bits. The method comprises three steps. The first step consists of deriving a feedback bit from each generating sequence in a P subsequence in accordance with a specified rule where a generating sequence is any sequence of contiguous bits in the P subsequence having the same length as the start sequence. The bit that follows a generating sequence is called the trailing bit for that generating sequence. The second step of the method consists of determining a sequence of one or more modifier bits to be used in modifying the P subsequence. The third step of the method consists of modifying the P subsequence utilizing the one or more modifier bits.

Abstract translation: 本发明是一种生成由多个邻接P子序列组成的主伪随机位序列的方法和装置。 每个P子序列包括预定长度的开始序列，随后是后续位序列。 该方法包括三个步骤。 第一步包括根据指定规则从P子序列中的每个生成序列导出反馈比特，其中生成序列是具有与起始序列相同长度的P子序列中的连续比特的任何序列。 跟随生成序列的位称为该生成序列的尾随位。 该方法的第二步是确定用于修改P子序列的一个或多个修饰符比特的序列。 该方法的第三步包括利用一个或多个修饰词比特来修改P子序列。

公开(公告)号：US06285954B1

公开(公告)日：2001-09-04

申请号：US09358630

申请日：1999-07-21

Applicant: John G. Mark ,  Daniel A. Tazartes

Inventor： John G. Mark ,  Daniel A. Tazartes

IPC: G05D100

CPC classification number: G05D1/0825

Abstract: The invention is a method and apparatus for obtaining an accurate value x1c of a variable x1 based on an estimate x1e that is a function of K variables x1, x2, . . . , xk, . . . , xK. The method comprises the steps of (a) obtaining a plurality of estimates x1e, x2e, . . . , xke, . . . , xKe of the variables x1, x2, . . . , xk, . . . , xK over a method-execution time period, the values of the variables x1, x2, . . . , xk, . . . , xK changing or being changed during the method-execution time period; (b) obtaining from an external source the actual values x1a of x1 during the method-execution time period; (c) defining a compensation model &dgr;x1 that is a function of one or more of the estimates x1e, x2e, . . . , xke, . . . xKe of the variables x1, x2, . . . , xk, . . . , xK, the compensation model being further defined by I unknown constants a1, a2, . . . , ai, . . . , aI; (d) applying an operator G to the values of x1e−x1a and &dgr;x1; (e) determining the values of a1, a2, . . . , ai, . . . , aI; and (f) determining the value of x1c.

Abstract translation: 本发明是一种基于作为K个变量x1，x2的函数的估计值x1e获得变量x1的精确值x1c的方法和装置。 。 。 ，xk，。 。 。 ，xK。 该方法包括以下步骤：（a）获得多个估计值x1e，x2e，...。 。 。 ，xke，。 。 。 ，xKe的变量x1，x2，...。 。 。 ，xk，。 。 。 ，xK在方法执行时间段内，变量x1，x2，...的值。 。 。 ，xk，。 。 。 ，xK在方法执行时间段内改变或改变; （b）从外部来源获得方法执行期间x1的实际值x1a; （c）定义作为估计值x1e，x2e，...中的一个或多个的函数的补偿模型deltax1。 。 。 ，xke，。 。 。 xKe的变量x1，x2，...。 。 。 ，xk，。 。 。 ，xK，补偿模型由I未知常数a1，a2，...进一步定义。 。 。 ，ai，。 。 。 ，aI; （d）将运算符G应用于x1e-x1a和deltax1的值; （e）确定a1，a2，...的值。 。 。 ，ai，。 。 。 ，aI; 和（f）确定x1c的值。

公开(公告)号：US6130755A

公开(公告)日：2000-10-10

申请号：US255377

申请日：1999-02-22

Applicant: John G. Mark ,  Daniel A. Tazartes ,  David I. Tazartes ,  Daniel P. Wiener

Inventor： John G. Mark ,  Daniel A. Tazartes ,  David I. Tazartes ,  Daniel P. Wiener

IPC: G01C19/64 ,  G01C19/72

CPC classification number: G01C19/72

Abstract: The invention is a method and apparatus for determining the rotation of a medium through which a light beam propagates by modulating the light beam with a pseudorandom sequence of bits. The method comprises the steps of (1) selecting a "0" or a "1" as the next bit of the modified pseudorandom bit sequence if one or more criteria are satisfied, the criteria being based on the measured properties of a plurality of prior bits of the modified pseudorandom bit sequence; otherwise: (2) selecting the next bit of an initial pseudorandom bit sequence as the next bit of the modified pseudorandom bit sequence, the next bit of the initial pseudorandom bit sequence being a function of one or more prior bits of the initial pseudorandom bit sequence.

Abstract translation: 本发明是用于通过用伪随机序列比特调制光束来确定光束通过其传播的介质的旋转的方法和装置。 该方法包括以下步骤：（1）如果满足一个或多个标准，则选择“0”或“1”作为修改的伪随机比特序列的下一个比特，该标准基于多个先前的测量属性 修改的伪随机比特序列的比特; （2）选择初始伪随机比特序列的下一比特作为修改伪随机比特序列的下一比特，初始伪随机比特序列的下一比特是初始伪随机比特序列的一个或多个先前比特的函数 。

公开(公告)号：US5896199A

公开(公告)日：1999-04-20

申请号：US880129

申请日：1997-06-20

Applicant: John G. Mark ,  Daniel A. Tazartes ,  Amado Cordova ,  Agop H. Cherbettchian ,  Eric L. Goldner

Inventor： John G. Mark ,  Daniel A. Tazartes ,  Amado Cordova ,  Agop H. Cherbettchian ,  Eric L. Goldner

IPC: G01C19/72

CPC classification number: G01C19/722

Abstract: A gyroscope assembly (10) includes a ring-shaped fiber optic coil (14) and a coil conforming enclosure (12, 16) of high magnetic permeability ferromagnetic material. The enclosure is ring-shaped to conform with the shape of the coil, and includes a portion (22) extending within the internal hole of the coil ring. Therefore, the coil is intimately and fully encased within high magnetic permeability material. In particular, the enclosure comprises a coil supporting spool (12) and a cover (16) secured to the spool. The spool includes a base (18) which is provided with a central hole (20) and a tubular wall (22) extending perpendicularly from the base. Coil (14) is bonded to base (18). Both the spool and the cover are formed of high magnetic permeability material, and the cover is placed about the fiber optic coil and attached to the spool. The coefficient of thermal expansion material used for the spool is matched to that of the coil pack to minimize stress imposed upon the fiber. An outer shield (28), roughly cylindrical in shape, may be further attached to the outside of the inner, toroidal shield, and the two shields are separated by a layer of low magnetic permeability material, such as of low magnetic permeability stainless steel or aluminum.

Abstract translation: 陀螺仪组件（10）包括环形光纤线圈（14）和高磁导率铁磁材料的线圈合格外壳（12,16）。 外壳是环形的以符合线圈的形状，并且包括在线圈环的内部孔内延伸的部分（22）。 因此，线圈密封并完全封装在高磁导率材料内。 特别地，外壳包括线圈支撑线轴（12）和固定到线轴的盖（16）。 阀芯包括设置有中心孔（20）的底座（18）和从基座垂直延伸的管状壁（22）。 线圈（14）结合到基座（18）上。 卷轴和盖都由高磁导率材料形成，并且盖围绕光纤线圈放置并连接到卷轴。 用于卷轴的热膨胀材料系数与线圈组的热膨胀系数相匹配，以使施加在纤维上的应力最小化。 大致圆筒形的外屏蔽件（28）可以进一步附接到内环形屏蔽体的外部，并且两个屏蔽件被低磁导率材料层（例如低磁导率不锈钢）分开，或 铝。