Coordinate Positioning Patents (Class 702/95)
  • Patent number: 10429167
    Abstract: As a former correction step, a coordinate correction method includes: a step of setting a measuring probe in a drive mechanism; a step of restraining a measurement tip; a step of acquiring a moving amount and a probe output; and a step of generating a former correction matrix including linear correction elements and non-linear correction elements. As a latter correction step, the coordinate correction method includes: a step of setting a measuring probe in a drive mechanism; a step of restraining a measurement tip; a step of acquiring a moving amount and a probe output; a step of generating an intermediate correction matrix including linear correction elements for correcting the probe output; and a step of correcting the probe output with a latter correction matrix. Consequently, correction can be simplified while allowing for correction of a non-linear error of the probe output supplied from the measuring probe.
    Type: Grant
    Filed: August 22, 2017
    Date of Patent: October 1, 2019
    Assignee: MITUTOYO CORPORATION
    Inventors: Hideyuki Nakagawa, Nobuhiro Ishikawa
  • Patent number: 10302407
    Abstract: An inclinable measuring head for use in a coordinate measuring machine or in another measure system. The inclinable head has a support element and a probe holder rotatably linked to the support element by a spherical joint that is capable of being rotated about three independent axes. The measuring head further includes a position encoder providing relative orientation of the probe holder with respect to the support element, and an actuator arranged for orienting the probe holder relative to the support element.
    Type: Grant
    Filed: November 21, 2016
    Date of Patent: May 28, 2019
    Assignee: TESA SA
    Inventors: Julien Chardonnens, Pascal Jordil, Knut Siercks, Bernhard Sprenger, Benjamin Vullioud
  • Patent number: 10228229
    Abstract: A touch probe for a coordinate measuring machine with a processor which is programmed to generate a trigger signal signalling a contact between a stylus of the probe and a workpiece, whenever one of a plurality displacement signals exceeds a corresponding threshold. In addition, or in alternative, a delayed trigger is generated based on a processing a plurality of samples of displacement signals that are stored in a buffer. The processor is programmed to minimize anisotropy of the probe response. Furthermore, the thresholds can be modified during operations based on commands received from the CMM controller.
    Type: Grant
    Filed: November 14, 2017
    Date of Patent: March 12, 2019
    Assignee: TESA SA
    Inventors: Dikran Antreasyan, Christophe Jaquet, Serge Mariller
  • Patent number: 10175042
    Abstract: Disclosed is a system and method for calibrating a magnetometer of a compass. With a global navigation satellite system receiver, a current position is determined. The determined position is used to determine a magnetic inclination (e.g., by a global magnetic field model such as the World Magnetic Model). The calibration system may perform different calibration sequences based on the magnetic inclination. In a first calibration sequence, performed responsive to a determination that a magnetic inclination (or the absolute value of the magnetic inclination) is less than a threshold, magnetic field data is measured by the magnetometer as it is rotated through horizontal rotation paths. If the magnetic inclination is greater than the threshold, magnetic field data is measured by the magnetometer as it is rotated through vertical rotation paths. The measured magnetic field data may be used to determine calibration values for the magnetometer compass.
    Type: Grant
    Filed: November 10, 2016
    Date of Patent: January 8, 2019
    Assignee: GoPro, Inc.
    Inventors: Fabio Diem, Tim Oberhauser, Sammy Omari
  • Patent number: 10095815
    Abstract: A system for mapping a magnetic-field in a volume-of-interest comprising a magnetic-field transmitter, generating a magnetic-field in the volume-of-interest, a freestanding magnetic-field detector operative to freely move within the volume-of-interest, a pose-information-acquisition-module and a processor. The detector acquires measurements of flux of the magnetic-field at a plurality of poses. The pose-information-acquisition-module measures information related to the pose of the detector. The processor determines pose-related-information respective of at least a portion of the measurements according to the information related to the pose of the detector. The processor estimates the entire set of parameters of a magnetic-field model template according to the magnetic-field flux measurement and the respective poses-related-information thereof. The processor incorporates the entire set of parameters into the magnetic-field model template, thereby determining the magnetic-field model.
    Type: Grant
    Filed: April 10, 2014
    Date of Patent: October 9, 2018
    Assignee: Elbit Systems Ltd.
    Inventors: Ilan Efrat, Evgeni Gurovich, Guy Mencel, Yoav Ophir, Mark Gandelsman
  • Patent number: 10042464
    Abstract: A touchscreen device includes: a touch sensing unit including a transmission module configured to transmit a touch measurement signal and a reception module configured to receive the touch measurement signal from the transmission module; a control unit configured to control the transmission module and the reception module and calculate a touch position according to an output signal of the touch sensing unit; a position indication unit disposed adjacent to the touch sensing unit and configured to emit visibly recognizable light; and a support member configured to support the touch sensing unit and the position indication unit. When the touch sensing unit senses a motion of a user in a sensing region, the control unit controls the position indication unit to emit light that is turned on and off to be visibly recognizable.
    Type: Grant
    Filed: June 14, 2016
    Date of Patent: August 7, 2018
    Assignees: RNDPLUS CO., LTD.
    Inventor: Yong-Chul Kim
  • Patent number: 9958473
    Abstract: This disclosure relates to a system and method for calibrating sensors upon installation in a vehicle. The system includes a sensor set configured to generate output signals conveying vectors of acceleration of the vehicle. The system determines a three-dimensional orientation of the sensor set in relation to the vehicle. The system converts output signals from the sensor set into vectors of acceleration of the vehicle.
    Type: Grant
    Filed: May 1, 2017
    Date of Patent: May 1, 2018
    Assignee: SmartDrive Systems, Inc.
    Inventors: Slaven Sljivar, David Forney, Mark Freitas, Daniel A. Deninger, Jeffrey Griswold, Jason Palmer
  • Patent number: 9495022
    Abstract: A method and apparatus for detecting by a digitizer an application of an electronic pen on or within a predetermined distance from a screen of an electronic device, and includes compensating coordinates of an electronic pen relative to screen. At least one magnetic field is detected that is produced by the electronic pen and that has a different central axis each other The digitizer determines whether the electronic pen is inclined based on a number of detected magnetic fields. A determination is made whether to apply a compensation value for compensating coordinates of the electronic pen based on determining inclination of the electronic pen. The present invention advantageously permits exact recognition of coordinates of the electronic pen whether then pen is inclined or not by performing the coordinate compensation taking into account the inclination of the electronic pen and the inclined direction.
    Type: Grant
    Filed: July 2, 2013
    Date of Patent: November 15, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Je-Hyun Son, Young-Jae Ko, Min-Seok Kim, Sang-Ryul Park, Ju-Gab Lee
  • Patent number: 9459096
    Abstract: A method of calibration of a mathematical model for the compensation of errors due to dynamic deformation of a measuring machine equipped with a mobile unit able to move a stylus probe in un measuring volume, wherein the model provides, in response to at least one input quantity correlated with a control signal of said drive means, a plurality of output quantities comprising at least one component of the measurement error introduced by the deformation and at least one quantity detected by a laser sensor and correlated with the deformation. In the calibration step, the mobile unit is subjected to a movement cycle constituted by small-amplitude oscillations of variable frequency, following the law of sinusoidal motion, keeping the tip of the probe blocked; during the movement cycle, the input and output quantities are sampled and supplied to an algorithm for model identification.
    Type: Grant
    Filed: July 5, 2012
    Date of Patent: October 4, 2016
    Assignee: HEXAGON METROLOGY S.P.A.
    Inventor: Giampiero Guasco
  • Patent number: 9423024
    Abstract: A method of adapting transmission controls to locate synchronizer touch points in an automated layshaft transmission. This method may include actuating a motor to move a shift drum along a layshaft at an essentially constant speed; measuring a feedback current as the motor moves the shift drum; detecting a first spike in feedback current adjacent to a second spike in feedback current for a gear; determining a shift drum angle for the first spike; and adjusting a transmission controller to set a synchronizer touch point at a shift drum angle adjacent to the first feedback current spike for the gear.
    Type: Grant
    Filed: January 12, 2012
    Date of Patent: August 23, 2016
    Assignee: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: Jeffrey J. Tumavitch, Shawn A. Holland, Bradley D. Riedle, William L. Murray
  • Patent number: 9400317
    Abstract: A method of attenuation correction for a positron emission tomography (PET) system includes obtaining PET scan data representative of a volume scanned by the PET system, obtaining a plurality of magnetic resonance (MR) scan data sets representative of the volume, each MR scan data set being acquired in a respective time period during acquisition of the PET scan data by the PET system, detecting motion of the volume that occurred during the acquisition of the PET scan data based on an assessment of the plurality of MR scan data sets, the PET scan data, or the plurality of MR scan data sets and the PET scan data, determining attenuation correction data from the plurality of MR scan data sets based on the detected motion for alignment of the attenuation correction data and the PET scan data, and correcting the PET scan data with the attenuation correction data.
    Type: Grant
    Filed: November 27, 2013
    Date of Patent: July 26, 2016
    Assignees: Siemens Medical Solutions USA, Inc., Siemens Aktiengesellschaft
    Inventors: Christopher Glielmi, Christian Geppert, David Faul, Matthias Fenchel
  • Patent number: 9286720
    Abstract: An exemplary system and method are disclosed for providing a combined video stream with geospatial information. Embodiments use a visualization tool to synchronize information in a virtual camera with attributes, such as video frames, from a physical camera. Once the camera position information is supplied to the visualization tool, the visualization tool retrieves geospatial data, such as terrain features, man made features, and time sensitive event data, and transforms the camera position information into a coordinate system of the virtual camera. The visualization tool uses the coordinate system of the virtual camera to generate geospatial snapshots. Embodiments use locative video software to combine the video frames from the physical camera with the geospatial snapshots from the virtual camera to generate a combined video stream, which provides a single view of multiple types of data to enhance an operator's ability to conduct surveillance and analysis missions.
    Type: Grant
    Filed: August 20, 2009
    Date of Patent: March 15, 2016
    Assignee: NORTHROP GRUMMAN SYSTEMS CORPORATION
    Inventors: Michael Thomas Werling, Kenneth David Feldman, Raymond E. Bivens
  • Patent number: 9279686
    Abstract: The present disclosure provides an indoor navigation control system containing at least two LED lighting devices and a location server. Each LED lighting device includes a Wi-Fi module and a driving power supply, and is used as a wireless access node to transmit Wi-Fi signals to an adjacent node. Nodes within a Wi-Fi signal coverage area have Internet or LAN access. The location server stores location information of the Wi-Fi module of each LED lighting device. The LED lighting devices and the location server communicate with a smart terminal to calculate a position, a moving direction, and a moving speed of an object according to the location information of each LED lighting device and a moving time length of the object. The Wi-Fi module of each LED lighting device further controls the driving power supply to adjust the status of the LED lighting device according to a control command from the smart terminal.
    Type: Grant
    Filed: September 17, 2014
    Date of Patent: March 8, 2016
    Assignee: ZHEJIANG SHENGHUI LIGHTING CO., LTD.
    Inventors: Jiabin Tuo, Jinxiang Shen
  • Patent number: 9217997
    Abstract: A method improves surface scanning measure machine speed while minimizing tip touchdown impact on the surface of the object being measured. Specifically, the method controls a surface scanning measuring machine having a probe head with a distal probe tip that contacts the surface of an object to be measured. To that end, the method selects a nominal initial contact point (on the surface) having a normal vector, and then moves the distal probe tip toward the nominal initial contact point along an approach path. The approach path has a generally linear portion that generally linearly extends from the nominal initial contact point to some non-contacting point spaced from the surface. The generally linear portion forms an angle of between about 20 degrees and about 60 degrees with the normal vector.
    Type: Grant
    Filed: September 13, 2011
    Date of Patent: December 22, 2015
    Assignee: Hexagon Technology Center GmbH
    Inventor: Paul P. Racine
  • Patent number: 9212888
    Abstract: A method of compensating the measurement errors of a measuring machine (1) deriving from the deformations of a machine bed (2) of the machine (1) caused by a load exerted by a workpiece to be measured on the machine bed (2), characterized by a first acquisition step (15) in which data regarding the weight of the workpiece and the conditions of constraint of the workpiece on the machine bed are acquired by a measurement and control unit (12) of the measuring machine (1) and a second calculation step (16, 17, 18, 19) in which correction values depending upon said data are calculated by said measurement and control unit (12), wherein the first step (15) includes selecting a standard load condition representing the load of the workpiece from among a plurality of standard load conditions; and the second step includes the step of calculating values correlated to the deformation of the machine bed (2) under the load of the workpiece represented by the selected standard load condition as a linear combination of corre
    Type: Grant
    Filed: July 24, 2007
    Date of Patent: December 15, 2015
    Assignee: Hexagon Metrology S.P.A.
    Inventor: Lorenzo Merlo
  • Patent number: 9185365
    Abstract: An apparatus and method for controlling a sensor node are provided that may calculate an azimuth angle and a slope of the sensor node using a 2-axis magnetic sensor and a 3-axis acceleration sensor, and may detect a target approaching the sensor node. The apparatus may include a calculation unit to calculate an azimuth angle and a slope of a sensor node, based on a magnetic values measured by a 2-axis magnetic sensor and a acceleration values measured by a 3-axis acceleration sensor; a sensor control unit to filter the magnetic values and the vibration values and to amplify the filtered magnetic values and the filtered vibration values, when the azimuth angle and the slope are calculated; and a detection unit to detect a target based on the amplified magnetic values and the amplified vibration values.
    Type: Grant
    Filed: October 7, 2011
    Date of Patent: November 10, 2015
    Assignees: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, AGENCY FOR DEFENSE DEVELOPMENT
    Inventors: Sang Gi Hong, Nae Soo Kim, Yong Hyun Kim, Noh Bok Lee
  • Patent number: 9182211
    Abstract: A calibration method comprises providing a mounting fixture including a tray coupled to a frame, and an alignment measurement sensor removably coupled to the tray. An angular orientation of the tray is determined using the alignment measurement sensor removably coupled to the tray in a first position. The alignment measurement sensor is then moved to a second position on the tray that is rotated from the first position, and the angular orientation of the tray is determined using the alignment measurement sensor at the second position. An axis misalignment for at least two of a pitch axis, a roll axis, or a yaw axis of the alignment measurement sensor is then calculated to determine one or more misalignment factors. The one or more misalignment factors are then applied to correct for misalignment of the alignment measurement sensor.
    Type: Grant
    Filed: December 4, 2012
    Date of Patent: November 10, 2015
    Assignee: Honeywell International Inc.
    Inventors: Ralph R. Jones, Douglas Mark Weed, David Robert Storch
  • Patent number: 9042962
    Abstract: The present invention relates to a model based positioning system that includes a positioning device having at least one transmitter configured to be in a tracking environment, e.g. inserted into a body, a receiver having a plurality of receiver elements arranged outside the tracking environment, a control unit configured to measure amplitude and/or phase information of a signal transmitted from the at least one transmitter and received at each receiving element, and a memory unit M for storing a model for each receiving element. The control unit is also configured to estimate the position P of the positioning device by comparing the model for each receiving element with the measured received signal for each receiving element.
    Type: Grant
    Filed: September 6, 2007
    Date of Patent: May 26, 2015
    Assignee: MICROPOS MEDICAL AB
    Inventors: Roman Iustin, Johan Linder, Erik Isberg, Tomas Gustafsson, Bo Lennernäs
  • Patent number: 9038434
    Abstract: In a method for calibrating a star probe of an image measuring machine, the star probe includes one or more probe heads. Probe configuration information for the star probe is configured when there is no probe configuration file of the star probe stored in a storage device of the image measuring machine, and one of the probe heads to be calibrated is selected from the star probe. The method calibrates a radius value of the selected probe head, and calibrates the deviation between the center point of the selected probe head and the focus of the camera lens. The method further generates a star probe model of the star probe according to the probe configuration information and the probe calibration information, and displays the star probe model of the star probe on a display device of the image measuring machine.
    Type: Grant
    Filed: July 23, 2012
    Date of Patent: May 26, 2015
    Assignees: HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD., HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Chih-Kuang Chang, Zheng-Cai She, Zhong-Kui Yuan, Zhi-Jun Zou, Dong-Hai Li
  • Patent number: 9031805
    Abstract: A geomagnetic field measurement device has a three-dimensional magnetic sensor and a storage device that stores plural pieces of magnetic data sequentially output from the three-dimensional magnetic sensor. The geomagnetic field measurement device calculates, based on the pieces of magnetic data, a distortion estimation value indicating a degree of difference in shape between a three-dimensional figure defined so that the plural sets of coordinates indicated respectively by the plural pieces of magnetic data are distributed adjacent to a surface thereof and a spherical surface, and determines whether there is distortion in the shape of the three-dimensional figure based on the distortion estimation value, to update an offset for correcting each of the plural pieces of the magnetic data in a case in which it is determined that there is no distortion.
    Type: Grant
    Filed: March 16, 2012
    Date of Patent: May 12, 2015
    Assignee: Yamaha Corporation
    Inventor: Ibuki Handa
  • Patent number: 9020776
    Abstract: An inclination angle compensation system for determining an inclination angle of a machine is disclosed. The inclination angle compensation system may have a non-gravitational acceleration estimator configured to estimate a non-gravitational acceleration of a machine based on an estimated inclination angle and an acceleration output from a forward acceleration sensor. The inclination angle compensation system may also have an inclination angle sensor corrector configured to receive an inclination angle output from an inclination angle sensor, determine an inclination angle sensor acceleration based on the inclination angle output, and calculate a corrected inclination angle of the machine based on the non-gravitational acceleration and the inclination angle sensor acceleration.
    Type: Grant
    Filed: September 28, 2011
    Date of Patent: April 28, 2015
    Assignee: Caterpillar Inc.
    Inventor: Paul Russell Friend
  • Patent number: 9009000
    Abstract: A portable articulated arm coordinate measurement machine can include a base, a manually positionable articulated arm portion having opposed first and second ends, the arm portion including a plurality of connected arm segments, an electronic circuit that receives the position signals from the transducers, a first inclinometer coupled to the base, wherein the inclinometer is configured to produce a first electrical signal responsive to an angle of tilt of the base and an electrical system configured to record a first reading of the first inclinometer and a second reading of the first inclinometer, wherein the first reading is in response to at least one of a first force applied to the base and a third force applied to the mounting structure, wherein the second reading is in response to at least one of a second force applied to the base and a fourth force applied to the mounting structure.
    Type: Grant
    Filed: January 14, 2011
    Date of Patent: April 14, 2015
    Assignee: Faro Technologies, Inc.
    Inventors: Frederick John York, Brent Bailey
  • Patent number: 8977558
    Abstract: Electronically generating an engineering plan for installation of equipment, such as cable system equipment, at a work site. First geographic information relating to a first location of the work site is compared with second geographic information representing a second location of an engineer generating the engineering plan (or of a plan generating tool being used by the engineer to generate the plan) to verify that the engineer/tool is sufficiently near to the work site. A digital image of a geographic area including the work site is displayed on the plan generating tool, and user input is acquired from the engineer (e.g., via a user input device associated with the plan generating tool) relating to at least one first position, relative to the displayed digital image, representing a first equipment location of at least a first piece of the equipment to be installed at the work site.
    Type: Grant
    Filed: August 11, 2011
    Date of Patent: March 10, 2015
    Assignee: CertusView Technologies, LLC
    Inventors: Steven Nielsen, Curtis Chambers, Jeffrey Farr
  • Patent number: 8965679
    Abstract: Systems and methods are operable maintain a proscribed Self Separation distance between an unmanned aircraft system (UAS) and an object. In an example system, consecutive intruder aircraft locations relative to corresponding locations of a self aircraft are determined, wherein the determining is based on current velocities of the intruder aircraft and the self aircraft, and wherein the determining is based on current flight paths of the intruder aircraft and the self aircraft. At least one evasive maneuver for the self aircraft is computed using a processing system based on the determined consecutive intruder aircraft locations relative to the corresponding locations of the self aircraft.
    Type: Grant
    Filed: February 28, 2013
    Date of Patent: February 24, 2015
    Assignee: Honeywell International Inc.
    Inventors: Eric Euteneuer, Michael Ray Elgersma
  • Patent number: 8954287
    Abstract: A method for calibrating alignment of an end effector with respect to a chuck in a plasma processing system is disclosed. The method includes providing a first light beam from the end effector to said chuck, moving the end effector along a predefined calibration path such that the first light beam traverses a surface of the chuck, receiving a set of reflected light signals being generated at least when the surface reflects the first light beam during the moving, and analyzing the set of reflected light signals to identify three or more discontinuities, generated when the first light beam encounters an edge of the chuck. The method also includes determining three or more coordinate data points representing three or more points on the edge of the chuck, and determining a center of the chuck based on the three or more coordinate data points.
    Type: Grant
    Filed: December 19, 2008
    Date of Patent: February 10, 2015
    Assignee: Lam Research Corporation
    Inventors: Matt Rodnick, Christine Allen-Blanchette
  • Patent number: 8949071
    Abstract: According to the present invention, a center deviation amount, which is an amount of deviation (distance) between the center line of a reference measurement target and the detection point is calculated using the reference measurement target having a known diameter, and a measurement value of a diameter of an arbitrary measurement target is corrected using the center deviation amount. Therefore, an accurate diameter value can be calculated even in the case of a measurement target having a diameter value different from the diameter value of the reference measurement target.
    Type: Grant
    Filed: January 12, 2012
    Date of Patent: February 3, 2015
    Assignee: Tokyo Seimitsu Co., Ltd.
    Inventor: Ryo Takanashi
  • Patent number: 8942940
    Abstract: Implementing a portable articulated arm coordinate measuring machine includes receiving a first request to perform a function. The portable AACMM includes a manually positionable articulated arm portion having opposed first and second ends, the arm portion including a plurality of connected arm segments, each arm segment including at least one position transducer for producing a position signal, a measurement device attached to a first end of the AACMM, and an electronic circuit which receives the position signals from the transducers and provides data corresponding to a position of the measurement device.
    Type: Grant
    Filed: January 14, 2011
    Date of Patent: January 27, 2015
    Assignee: Faro Technologies, Inc.
    Inventor: Frederick John York
  • Patent number: 8928527
    Abstract: Systems and methods for reducing error detection latency in LPV approaches are provided. In certain embodiments, a method for navigational guidance includes calibrating inertial measurements acquired from an inertial navigation system with satellite-based augmentation system position measurements acquired from a satellite-based augmentation system to create corrected inertial navigation system positions. The method also includes determining whether the satellite-based augmentation system experienced a fault when the inertial measurements were calibrated with the satellite-based augmentation system position measurements. Further, when the satellite-based augmentation system did not experience a fault, the method includes monitoring the satellite-based augmentation system navigation position measurements based on the corrected inertial navigation system positions.
    Type: Grant
    Filed: March 19, 2013
    Date of Patent: January 6, 2015
    Assignee: Honeywell International Inc.
    Inventors: Gang He, Ivan Sandy Wyatt
  • Patent number: 8930163
    Abstract: A method for detecting a human's steps and estimating the horizontal translation direction and scaling of the resulting motion relative to an inertial sensor is described. When a pedestrian takes a sequence of steps the displacement can be decomposed into a sequence of rotations and translations over each step. A translation is the change in the location of pedestrian's center of mass and a rotation is the change along z-axis of the pedestrian's orientation. A translation can be described by a vector and a rotation by an angle.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: January 6, 2015
    Assignee: TRX Systems, Inc.
    Inventors: Kamiar Kordari, Benjamin Funk, Jared Napora, Ruchika Verma, Carole Teolis, Travis Young
  • Patent number: 8918302
    Abstract: A sensor calibration system for a mobile machine is disclosed. The sensor calibration system may have a first calibration object positioned at a first worksite location, a second calibration object positioned at a second worksite location, and a plurality of sensors located onboard the mobile machine to detect the first and second calibration objects. The sensor calibration system may also have a controller in communication with the plurality of sensors. The controller may be configured to calibrate at least one of the plurality of sensors when the mobile machine is proximate the first worksite location, and to calibrate at least one other of the plurality of sensors when the mobile machine is proximate the second worksite location.
    Type: Grant
    Filed: September 19, 2008
    Date of Patent: December 23, 2014
    Assignee: Caterpillar Inc.
    Inventors: Ramadev Burigsay Hukkeri, Thandava Krishna Edara
  • Publication number: 20140365155
    Abstract: A computing device reads outline points of a first accessory and processing points of a second accessory from a storage system. The computing device corresponds each of the processing points to one outline point, and calculates a deviation value between each of the processing points and the corresponding outline point. The computing device adjusts coordinates of the processing point according to the deviation value.
    Type: Application
    Filed: June 6, 2014
    Publication date: December 11, 2014
    Inventors: CHIH-KUANG CHANG, XIN-YUAN WU, LU YANG
  • Publication number: 20140350881
    Abstract: The invention relates to a method for calibration of 2-axis high precision digital angle measurement device, particularly for initializing a planar angle measuring device and an apparatus to generate simultaneous two-dimensional resultant planar angles of full 360° rotation. The planar angle measurement device is, typically but not exclusively, used in concurrent two-dimensional angles leveling, setting and alignment tasks for precision machine setup in the fields of precision engineering and metrology applications.
    Type: Application
    Filed: May 21, 2013
    Publication date: November 27, 2014
    Applicant: DigiPas USA, LLC
    Inventors: Jim Li Hui Hong, Kuu Bi Yong
  • Patent number: 8897541
    Abstract: A method of implementing accurate digitization from a georeferenced image is described. In one embodiment, at least one set of coordinates which have been measured at a point of interest is received. A correction is then determined which describes a difference between the at least one set of coordinates and a set of georeferenced coordinates from a georeferenced image of the point of interest which describes the position of the point of interest.
    Type: Grant
    Filed: June 3, 2011
    Date of Patent: November 25, 2014
    Assignee: Trimble Navigation Limited
    Inventors: Shawn D. Weisenburger, Peter G. France, James M. Janky
  • Patent number: 8886494
    Abstract: A method of optimizing measurement paths analyzes one or more measurement points for each of the measurement elements of a product and generates relation arrays, each of the relation arrays storing the name and the one or more measurement points of one measurement element. The method selects a measurement point which is the nearest to the origin of an coordinate system of the product, computes distances between the measurement points from the selected measurement point using the relation arrays, and orders the measurement points according to the computed distances to generate a first ordered array. The method generates an optimal measurement path according to the first ordered array.
    Type: Grant
    Filed: November 2, 2011
    Date of Patent: November 11, 2014
    Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.
    Inventors: Chih-Kuang Chang, Xin-Yuan Wu, Gen Yang
  • Patent number: 8880374
    Abstract: Provided is a charged particle beam device wherein a secondary signal generated from an alignment pattern having known coordinate values in a sample coordinate system is detected, and a positional deviation quantity between the coordinate system of a sample (10) and the coordinate system of a stage (21) is calculated so as to generate coordinate correction data. At the time of observing a sample image, the secondary signal generated from the alignment pattern is detected at least once so as to perform realignment, and the coordinate correction data is updated. Thus, the charged particle beam device performs long-time inspection at a high observation magnification by accurately correcting the sample coordinate information obtained by temperature change, while suppressing device cost increase and throughput deterioration.
    Type: Grant
    Filed: June 18, 2009
    Date of Patent: November 4, 2014
    Assignee: Hitachi High-Technologies Corporation
    Inventor: Masaki Mizuochi
  • Patent number: 8868367
    Abstract: A method of compensating the measurement errors of a measuring machine deriving from the deformations of a machine bed of the machine caused by the load exerted by a mobile unit of the machine on said machine bed, said method being characterized by comprising a first acquisition step in which first data regarding the constraint conditions of a workpiece on the machine bed are acquired, a second acquisition step in which second data regarding the deformation of the machine bed as the position of the mobile unit of the machine varies are acquired, and a third calculation step in which correction values depending upon said first and second data are calculated.
    Type: Grant
    Filed: July 24, 2007
    Date of Patent: October 21, 2014
    Assignee: Hexagon Metrology S.p.A
    Inventor: Lorenzo Merlo
  • Patent number: 8868368
    Abstract: A method of estimating and extrapolating the position of an article is provided. The article's position is detected by relatively infrequent ultrasonic ranging, and provides more frequent reports from internal accelerometers, gyroscopes and optional magnetometers. In a first instance, the method includes calculating new position, velocity and orientation vectors by linearly interpolating between the readings of the sensors at two times. In a second instance, the method includes estimating the orientation of the article by calculating the duration of a timeslice, making a rotational increment matrix and taking the product of the initial orientation and the increment matrix for the appropriate number of timeslices. In a third instance, the method includes calculating the acceleration of an article between three ultrasonically determined locations and recalibrating the accelerometers to align the measured acceleration with the calculated acceleration.
    Type: Grant
    Filed: September 13, 2010
    Date of Patent: October 21, 2014
    Assignee: Performance Designed Products LLC
    Inventor: Thomas Peter Heath
  • Publication number: 20140303925
    Abstract: A method and device for calibrating a magnetometer device. In an embodiment, the present invention provides a method to automatically calibrate a magnetometer device in the background with only limited movement in each of the three axis (approximately 20 degrees in each direction). A device implementing the present method will never get stuck in a lock-up state. Embodiments of the present invention provide a conservative and accurate magnetometer status indicator that is essential for indoor navigation using inertial sensors. The implemented algorithm is relatively low computationally intensive and is intelligent enough to know when it has the right kind and right amount of magnetic data before it initiates a calibration.
    Type: Application
    Filed: April 1, 2014
    Publication date: October 9, 2014
    Applicant: MCube Inc.
    Inventor: Andy Milota
  • Patent number: 8843340
    Abstract: Track information generating devices, methods, and programs acquire a self-contained navigation track of a vehicle indicated by time-series pieces of self-contained navigation information, and acquire a GPS track of the vehicle indicated by time-series pieces of GPS information. The devices, methods, and programs compare the self-contained navigation track with the GPS track to correct the self-contained navigation information so as to reduce a difference between the self-contained navigation track and the GPS track.
    Type: Grant
    Filed: May 2, 2011
    Date of Patent: September 23, 2014
    Assignee: Aisin AW Co., Ltd.
    Inventors: Yusuke Oohashi, Daisuke Sakaki, Yohei Ando
  • Patent number: 8843339
    Abstract: An information processing apparatus includes: a receiving device receiving a distribution data series; first adjusting device adjusting first function parameter set to reduce an error, the first function parameter set specifying the position of the extreme value, and the ratio of a value at first distance on the coordinate axis from the position of the extreme value in first direction to the extreme value; second adjusting device adjusting second function parameter set to reduce an error, the second function parameter set specifying the position of the extreme value, and the ratio of a value at second distance on the coordinate axis from the position of the extreme value in second direction to the extreme value; a calculator calculating a characteristic coefficient identifying a Pearson function from a moment of a function including the first and second functions; and a distribution data calculator for calculating distribution data by a Pearson function.
    Type: Grant
    Filed: December 22, 2010
    Date of Patent: September 23, 2014
    Assignee: Fujitsu Limited
    Inventor: Kunihiro Suzuki
  • Publication number: 20140278182
    Abstract: A technique for reducing altitude error involves determining a corrected altitude for an aircraft using forecast atmospheric pressure data available, for example, from a weather forecasting service. The forecast atmospheric pressure data includes, for a number of points in time and for a number of geographic locations, a set of pressure levels and corresponding altitude values. Altitude correction data is periodically calculated from the forecast atmospheric pressure data for each of a number of geographic grid points. Upon receiving aircraft position information and an aircraft altitude measurement for an aircraft, one or more of the geographic grid points corresponding to the aircraft position are identified, and a corrected altitude of the aircraft is determined based on the altitude correction data of the one or more geographic grid points.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Inventors: Michael A. Garcia, Robert Mueller, Eric Innis, Boris Veytsman
  • Publication number: 20140257733
    Abstract: In a method for checking installation positions of probes of a star prober using a coordinate measurement device, the star prober is fixed vertically on a platform and supported by a movable arm, and a standard ball placed on the platform. The first probe measures a first point on a top surface of the standard ball, and the second probe measures a second point on the top surface of the standard ball. An X-Y coordinate system based on the first and second points is established, and a value of any deviation angle between the first probe and the second probe is calculated based on the X-Y coordinate system. The information is displayed for indicating whether the installations of the first and second probes are precise or not according to any deviation value, and the respective installations of the other individual probes are checked against the X-Y coordinate system.
    Type: Application
    Filed: December 10, 2013
    Publication date: September 11, 2014
    Applicants: HON HAI PRECISION INDUSTRY CO., LTD., HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD.
    Inventors: CHIH-KUANG CHANG, ZHONG-KUI YUAN, YU-HUA XU, XIAO-GUANG XUE, DONG-SHENG LIU, NA YU
  • Patent number: 8831906
    Abstract: A technique for estimating the closest point of approach (CPA) of an object includes: tracking a range rate of the object based on Doppler measurements of the object; computing a first CPA estimate based on the tracked range rate; separately tracking a position of the object based on position measurements of the object; computing a second CPA estimate based on the tracked position; and computing a fused CPA estimate based on the first and second CPA estimates.
    Type: Grant
    Filed: April 8, 2011
    Date of Patent: September 9, 2014
    Assignee: Exelis Inc.
    Inventors: Yair Alon, Gregory Medlin
  • Patent number: 8825426
    Abstract: In general, the invention relates to an algorithm and process for automated and/or continuous calibration of magnetic sensor, for example such as a sensor installed in a mobile positioning system handset. According to certain aspects, the calibration process can use the normal motion of the handset such that all measurement data from the three orthogonal axes of sensor when exposed to Earth's magnetic field is collected. According to still further aspects, the process includes fitting measurement data to an ellipsoid that characterizes the actual magnetic field measurements from a magnetic sensor, so that anomalies such as hard iron effect, soft iron effect and scale factors can be extracted and/or corrected by comparison to a sphere represented by magnetic field data from a model at the sensor's location.
    Type: Grant
    Filed: April 9, 2010
    Date of Patent: September 2, 2014
    Assignee: CSR Technology Holdings Inc.
    Inventors: Mahesh Chowdhary, Mahaveer Jain
  • Patent number: 8825427
    Abstract: A reference measurement object having known properties is used for the purpose of calibrating a coordinate measuring machine. A plurality of reference measured values are picked up on the reference measurement object. Calibration data are determined using the reference measured values and using the known properties of the reference measurement object. The calibration data comprises a first number of polynomial coefficients that are selected to correct nonlinear measuring errors using at least one polynomial transformation. The first number of polynomial coefficients is reduced in an iterative method to a lesser second number, with a plurality of pairs of polynomial coefficients being formed and with a polynomial coefficient of a pair being eliminated in each case when a statistical dependence between the polynomial coefficients of the pair is greater than a defined threshold value.
    Type: Grant
    Filed: May 19, 2010
    Date of Patent: September 2, 2014
    Assignee: Carl Zeiss Industrielle Messtechnik GmbH
    Inventors: Steffen Kunzmann, Tobias Held, Thomas Engel
  • Publication number: 20140236518
    Abstract: Systems and methods for low-latency calibration of the alignment of 3-axis accelerometers in accordance embodiments of the invention are disclosed. In one embodiment of the invention, a telematics system includes a processor, an acceleration sensor, a velocity sensor, and a memory configured to store an acceleration alignment application, wherein the acceleration alignment application configures the processor to determine vehicular forward acceleration information and vehicular lateral acceleration information, calculate a lateral acceleration vector, a forward acceleration vector, and a vertical acceleration vector using a forward incline vector and a lateral incline vector determined using the vehicular forward acceleration information and vehicular lateral acceleration information.
    Type: Application
    Filed: February 19, 2013
    Publication date: August 21, 2014
    Applicant: CALAMP CORP.
    Inventors: Peter Hergesheimer, Todd Sprague, Alexandre Dlagnekov
  • Publication number: 20140236520
    Abstract: A measuring arrangement is calibrated for determining rotational positions of a rotary device that has a first part and a second part which can be rotated relative to the first part about a rotational axis. Rotational positions of the first part relative to the second part and/or rotational positions of the second part relative to the first part are detected using a plurality of sensors distributed about the rotational axis. A respective measurement signal corresponding to each detected rotational position is generated such that redundant information on the rotational positions of the first part and the second part relative to each other is provided. The redundant information on the rotational position(s) are analyzed such that effects of a translational movement of the first and the second part relative to each other are corrected, the translational movement running transverse to the extension of the rotational axis.
    Type: Application
    Filed: July 8, 2011
    Publication date: August 21, 2014
    Applicant: CARL ZEISS INDUSTRIELLE MESSTECHNIK GMBH
    Inventors: Thomas Engel, Dominik Seitz, Rainer Sagemüller, Fabian Holzwarth
  • Publication number: 20140236519
    Abstract: Systems and methods for the calibration of 3-axis accelerometers using vertical sample buffers in accordance embodiments of the invention are disclosed.
    Type: Application
    Filed: February 19, 2013
    Publication date: August 21, 2014
    Applicant: CALAMP CORP.
    Inventors: Peter Hergesheimer, Todd Sprague, Alexandre Dlagnekov
  • Patent number: 8793090
    Abstract: Track information generating devices, methods, and programs acquire a self-contained navigation track of a vehicle indicated by time-series pieces of self-contained navigation information, acquire a matching track of the vehicle indicated by time-series pieces of information determined through a map matching process is determined as a road the vehicle is traveling, and acquire a degree of reliability of the matching track. The devices, methods, and programs acquire a GPS track that is a track of the vehicle indicated by time-series pieces of GPS information, acquire a degree of reliability of the GPS track, and set the one of the GPS track and the matching track having a higher degree of reliability as a correction target track to correct the self-contained navigation information so as to reduce a difference between the self-contained navigation track and the correction target track.
    Type: Grant
    Filed: May 2, 2011
    Date of Patent: July 29, 2014
    Assignee: Aisin Aw Co., Ltd.
    Inventors: Yusuke Oohashi, Daisuke Sakaki, Yohei Ando
  • Publication number: 20140207401
    Abstract: An apparatus for recognizing a user's motions based on sensor information and label information, a method for establishing an ONMF-based basis matrix, and a method for establishing an OSSNMF-based basis matrix are provided, where the basis matrices are used to extract motion features of the user. The apparatus for recognizing the user's motions may include a feature vector extractor configured to multiply a transposed matrix of an orthogonalized basis matrix by a sensor data matrix of frequency domain sensor data acquired from sensors to extract an ONMF-based feature vector and a multi-class classifier configured to use the extracted ONMF-based feature vector to classify the user's motion into a type from among types of a user's motions.
    Type: Application
    Filed: January 21, 2014
    Publication date: July 24, 2014
    Applicants: POSTECH ACADEMY-INDUSTRY FOUNDATION, SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jae-Mo SUNG, Won-Keun KONG, Sae-Hun KIM, Seung-Jin CHOI