Angular Position Patents (Class 702/151)
  • Patent number: 11122994
    Abstract: One aspect of the present disclosure relates to a physical training system for injury prevention and rehabilitation. The training system can include a wearable device in communication with an external device, which can be used to train at least the athlete wearing the wearable device. The wearable device can reduce the number of sensors needed to capture motion data required for the training. For example, the wearable device can include an inertial measurement unit (IMU) device located at a position relative to a joint of an athlete to measure an inertial displacement of the joint and an optical sensor to measure an angle of the joint. The wearable device can include a wireless transceiver to communicate a characteristic of motion of the joint (determined based on data from the IMU and the optical sensor) to an external device.
    Type: Grant
    Filed: June 15, 2018
    Date of Patent: September 21, 2021
    Assignee: MEDSTAR HEALTH
    Inventors: Thomas Blackadar, Carter Mitchell
  • Patent number: 11112604
    Abstract: A head-up display for a vehicle provides image warping. The head-up display comprises at least one sensor, an image generator, a display unit and a mirror unit. A correction unit is furthermore arranged following the image generator.
    Type: Grant
    Filed: March 24, 2020
    Date of Patent: September 7, 2021
    Assignee: Continental Automotive GmbH
    Inventors: Martin Stamm, Ulrich Kabatek
  • Patent number: 11099036
    Abstract: An accurate position sensor is presented. The sensor operates over 360-degree motion angular motion and includes a coil structure formed on a substrate and a target mounted to be angularly moved over the coil structure, the target being formed of a conducting material in a shape of a spiral of Archimedes. The coil structure includes coils with an arc sufficient to operate over a 360 degree motion of the target, for example between 120 degrees and 360 degrees. Some embodiments include coils with a 180 degree arc. A method of operating the position sensor includes rotating a target formed of a conducting material in a shape of a spiral of Archimedes over a coil structure and providing a linearized and calibrated response indicating the angular position of the target relative to the coil structure.
    Type: Grant
    Filed: July 10, 2019
    Date of Patent: August 24, 2021
    Assignee: Integrated Device Technology, Inc.
    Inventors: Gentjan Qama, Marco Nicolò, L'ubomir Fenic
  • Patent number: 11086966
    Abstract: In example implementations, an apparatus includes a plurality of nodes, a pump coupled to the plurality of nodes and a connection network. In one example, each one of the plurality of nodes may store a value. The pump provides energy to the each one of the plurality of nodes. The connection network may include a two dimensional array of elements, wherein each group of the two dimensional array of elements is in communication with a respective one of the plurality of nodes, wherein the connection network may be tuned with parameters associated with encoding of an Ising problem. The connection network may process the value stored in each one of the plurality of nodes. The Ising problem may be solved by the value stored in each one of the plurality of nodes at a minimum energy level.
    Type: Grant
    Filed: September 8, 2015
    Date of Patent: August 10, 2021
    Assignee: Hewlett Packard Enterprise Development LP
    Inventors: Jason Pelc, Thomas Van Vaerenbergh, Raymond G Beausoleil
  • Patent number: 11041726
    Abstract: The present invention relates to an inertial measurement apparatus and a mechanical device. The inertial measurement apparatus includes a PCB board and an inertial measurement unit (IMU). The PCB board includes a PCB body portion and an isolation portion that is formed by slotting a side of the PCB board and fixedly connected to the PCB body portion. The IMU is disposed on the isolation portion.
    Type: Grant
    Filed: September 17, 2018
    Date of Patent: June 22, 2021
    Assignee: AUTEL ROBOTICS CO., LTD.
    Inventor: Faquan Chen
  • Patent number: 11031888
    Abstract: The invention relates to a method for operating a rotating electric machine (1) having a rotor (3), a polyphase excitation winding (5) and a commutation apparatus (9) for commutating excitation winding currents of the excitation winding (5) depending on rotor position values (R) for rotor positions of the rotor (3). First measurement values (A) for the rotor positions are detected by means of a first sensor apparatus (13) and second measurement values (B) for the rotor positions are detected by means of a second sensor apparatus (15). For the commutation of the excitation winding currents, the rotor position values (R) are formed from weighted mean values (M) of the first measurement values (A) and the second measurement values (B).
    Type: Grant
    Filed: July 5, 2016
    Date of Patent: June 8, 2021
    Assignee: Vitesco Technologies Germany GmbH
    Inventors: Andreas Schnell, Michael Winkler, Emanoil Iordache
  • Patent number: 11020188
    Abstract: Systems and methods for treatment of a spine of a patient. The system includes a treatment device comprising a probe tip at a distal end of the device. The system further includes a display device configured to display information associated with the treatment. The system further includes at least one computing device in electrical communication with the display device and the treatment device. The memory of the computing device includes software for operating a GUI. The at least one computing device configured to display the GUI comprising a virtual representation of: a first skeletal structure; at least one of an organ and a muscle; and a nerve network. The device also configured to display a graphic along a portion of the neural pathways associated with a user selected vertebra of the vertebrae when the treatment device is actuated to deliver the treatment.
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: June 1, 2021
    Inventors: John Crunick, Louis L. Laskey, Jr.
  • Patent number: 11015958
    Abstract: A rotation angle detection device includes a driving gear rotated integrally with a rotary body, a first driven gear and a second driven gear coupled to the driving gear and rotated in cooperation with the driving gear, a first sensor that detects rotation of the first driven gear and generates a first sensor output, and a second sensor that detects rotation of the second driven gear and generates a second sensor output. An initialization method includes adjusting zero points of the first and second sensor output obtained at positions of rotation references of the first and second driven gears, measuring a deviation amount occurring in a calculation of rotation information of at least one of the first and second driven gears, and correcting the zero point of at least one of the first and second sensor outputs based on the measured deviation amount.
    Type: Grant
    Filed: June 13, 2019
    Date of Patent: May 25, 2021
    Inventor: Muneyoshi Kakimi
  • Patent number: 10969226
    Abstract: The present invention relates to systems and methods for providing location and guidance, and more particularly for providing location and guidance in environments where global position systems (GPS) are unavailable or unreliable (GPS denied and/or degraded environments). The present invention further relates to systems and methods for using inertial measurement units IMUs to provide location and guidance. More particularly, the present invention relates to the use of a series of low-accuracy or low-resolution IMUs, in combination, to provide high-accuracy or high-resolution location and guidance results.
    Type: Grant
    Filed: November 26, 2019
    Date of Patent: April 6, 2021
    Assignee: Orbital Research Inc.
    Inventors: Michael Jankowski, Edward J. Rapp
  • Patent number: 10948292
    Abstract: The purpose is to accurately and promptly calculate an error of a magnetic sensor. A sensor error calculating device may include a GNSS attitude angle calculating module, a GNSS geomagnetism calculating module, and an error estimating module. The GNSS attitude angle calculating module may calculate a GNSS attitude angle of a movable body based on positioning signals of a GNSS. The GNSS geomagnetism calculating module may calculate a GNSS geomagnetism based on the GNSS attitude angle. The error estimating module may estimate a sensitivity error, a misalignment error and a bias error of the magnetic sensor by using a magnetic detection value of the magnetic sensor and the GNSS geomagnetism.
    Type: Grant
    Filed: October 25, 2016
    Date of Patent: March 16, 2021
    Assignee: Furuno Electric Co., Ltd.
    Inventors: Hiroyuki Toda, Naomi Fujisawa, Hiraku Nakamura
  • Patent number: 10890979
    Abstract: A controlling system and a controlling method for virtual display are provided. The controlling system for virtual display includes a visual line tracking unit, a space forming unit, a hand information capturing unit, a transforming unit and a controlling unit. The visual line tracking unit is used for tracking a visual line of a user. The space forming unit is used for forming a virtual display space according to the visual line. The hand information capturing unit is used for obtaining a hand location of the user's one hand in a real operation space. The transforming unit is used for transforming the hand location to be a cursor location in the virtual display space. The controlling unit is used for controlling the virtual display according to the cursor location.
    Type: Grant
    Filed: April 23, 2018
    Date of Patent: January 12, 2021
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Duan-Li Liao, Chia-Chang Li, Wen-Hung Ting, Hian-Kun Tenn
  • Patent number: 10890464
    Abstract: A rotation detecting device includes first and second magnetic detection elements that output first and second signals and a detection circuit having the first and second signals input thereto. The detection circuit includes an automatic correction circuit that performs generating and updating of a correction value for correcting the and second signals. The automatic correction circuit is configured to stop the generating or the updating of the correction value in at least one of a case where a rotation direction of an object is changed to a reverse rotation direction from a normal rotation direction and a case where a rotation direction of the object is changed to the normal rotation direction from the reverse rotation direction.
    Type: Grant
    Filed: March 13, 2017
    Date of Patent: January 12, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Ryo Osabe, Hideaki Fujiura, Takeshi Uemura, Takuya Tomida
  • Patent number: 10876307
    Abstract: A construction management system for constructing a building including at least one heavy lifting machine for moving a one building element to a mounting position on the building, a central computing unit providing a building information model comprising at least a construction plan comprising a target state of the construction of the building, a three-dimensional model of an actual construction state of the building, and a three-dimensional model of the element, wherein the central computing unit is adapted to determine the mounting position for the element based on the construction plan, the model of the current construction state and on the model of the element.
    Type: Grant
    Filed: January 19, 2018
    Date of Patent: December 29, 2020
    Assignee: HEXAGON TECHNOLOGY CENTER GMBH
    Inventor: Bo Pettersson
  • Patent number: 10871820
    Abstract: Disclosed herein are electronic devices, and methods for their operation, that identify user inputs based on interaction of an object with input surfaces separate from the electronic devices. The electronic devices may include one or more self-mixing interferometry sensors that scan a field of view containing the input surface with a light beam, such as a laser beam emitted laser diode. Self-mixing of the emitted light with reflections can generate a self-mixing interferometry signal. Analysis of the self-mixing interferometry signal can allow for identification of an object, such as a user's finger, in the field of view. Deformation of the finger can be detected with the self-mixing interferometry sensor, and a user input identified therefrom.
    Type: Grant
    Filed: May 9, 2019
    Date of Patent: December 22, 2020
    Assignee: Apple Inc.
    Inventors: Mehmet Mutlu, Ahmet Fatih Cihan
  • Patent number: 10868480
    Abstract: An apparatus includes at least one processor or circuit programmed to function as a detection unit that detects a rotational position of a rotor, and a generation unit that generates a driving waveform for a motor based on the detected rotational position. The generation unit includes a phase difference setting unit that sets a phase difference between the rotational position and the driving waveform, a changing time setting unit that sets a changing time, which is a time required for changing the phase difference from a phase difference before the change to a phase difference after the change, in a case where the set phase difference is changed, and a determination unit that determines a phase of the driving waveform based on the phase difference before the change, the phase difference after the change, and the changing time.
    Type: Grant
    Filed: October 11, 2018
    Date of Patent: December 15, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Yoshihiro Mizuo
  • Patent number: 10816570
    Abstract: An inertial measurement system is disclosed. The inertial measurement system has an accelerometer processing unit that generates a calibrated accelerometer data. The inertial measurement system further includes a magnetometer processing unit generates a calibrated magnetometer data, and a gyroscope processing unit generates a calibrated gyroscope data. Using the calibrated accelerometer data, the calibrated magnetometer data, and the calibrated gyroscope data, the inertial measurement system generates a heading angle error indicative of the accuracy of the heading angle error.
    Type: Grant
    Filed: November 19, 2018
    Date of Patent: October 27, 2020
    Assignee: Invensense, Inc.
    Inventors: Yuan Zheng, Shang-Hung Lin, Kerry Keal
  • Patent number: 10799789
    Abstract: An example game system includes a main body apparatus and a game controller. The game controller has an analog stick, a memory storing correction parameter information including a first manufacturing process correction parameter value determined in a manufacturing process in connection with the analog stick, a first user correction parameter value determined in accordance with an operation by a user onto the analog stick, and a first model adjustment value corresponding to a model of the game controller, and a first control circuit transmitting the correction parameter information to the main body apparatus. The main body apparatus has a second control circuit which selects any of the first manufacturing process correction parameter value and the first user correction parameter value and performs game processing based on the selected correction parameter value, the first model adjustment value, and input data from the analog stick.
    Type: Grant
    Filed: January 10, 2019
    Date of Patent: October 13, 2020
    Assignee: NINTENDO CO., LTD.
    Inventors: Toshiki Oizumi, Shinji Takenaka, Takanori Okamura, Shumpei Yasuda
  • Patent number: 10788324
    Abstract: A processor-implemented method based on an acceleration sensor and a geomagnetic sensor for determining an angular velocity of an object includes: deriving a state variable and a variance of the state variable based on an error quaternion and converting a quaternion-based rotation matrix into an error quaternion-based rotation matrix; calculating an observation matrix and an output matrix of the Kalman filter based on the error quaternion-based rotation matrix; calculating a gain of the Kalman filter based on the transferred variance of the state variable and the observation matrix of the Kalman filter after transferring the state variable and the variance of the state variable through a discretized transfer matrix; calculating a quaternion-based on a calibrated state variable and an estimated quaternion after calibrating the state variable and the variance of the state variable through the gain of the Kalman filter; and calculating angular velocity based on the quaternion.
    Type: Grant
    Filed: May 21, 2018
    Date of Patent: September 29, 2020
    Assignee: Haechitech Corporation
    Inventors: Dong Yoon Kim, Seong Min Choe
  • Patent number: 10775208
    Abstract: An angle sensor includes a detection signal generation unit, an angle detection unit for generating a detected angle value by performing an operation using detection signals, and a condition determination apparatus. The condition determination apparatus includes an initial determination value generation unit, correction processing unit and determination unit. The initial determination value generation unit performs an operation using the detection signals to generate an initial determination value corresponding to the angle sensor condition. The correction processing unit performs correction processing on the initial determination value to generate a corrected determination value. The determination unit determines whether the angle sensor is in a normal condition on the corrected determination value basis. The initial determination value contains a variation component which varies depending on an angle to be detected.
    Type: Grant
    Filed: March 22, 2017
    Date of Patent: September 15, 2020
    Assignee: TDK CORPORATION
    Inventors: Kazuya Watanabe, Hiraku Hirabayashi
  • Patent number: 10767589
    Abstract: A crank angle sensor that outputs a crank angle signal at a predetermined crank angle by synchronizing rotation of a signal rotor fixed on a crank shaft of an internal combustion engine, an interval of the crank angle signals being longer at a specific crank angle corresponding to a position of a crank position reference part of the signal rotor, includes a backward rotation detecting function that outputs different crank angle signals in a forward rotation of the crank shaft and in a backward rotation of the crank shaft, and a control part disallows the detection of the crank position reference part when a stop request to the internal combustion engine is generated or when the backward rotation of the crank shaft is detected based on the crank angle signal, and controls the internal combustion engine by calculating the crank angle based on the crank angle of the crank position reference part detected before the detection of the crank position reference part is disallowed and the crank angle signal.
    Type: Grant
    Filed: November 2, 2015
    Date of Patent: September 8, 2020
    Assignee: DENSO CORPORATION
    Inventor: Masato Nodera
  • Patent number: 10769867
    Abstract: Maintenance of a transportation device propelled by an electric motor, wherein an incremental encoder senses motion of a moving part of, or a part moved by, the electric motor, may include acquiring a pulses-per-rotation configuration value PPRconf, representing a quantity of pulses which should be provided by the incremental encoder per one rotation of the electric motor; deriving a pulses-per-rotation estimation value PPRest representing a quantity of pulses provided by the incremental encoder per one rotation of the electric motor; determining a pulses-per-rotation error value PPRerr representing a deviation of the pulses-per-rotation estimation value PPRest from the pulses-per-rotation configuration value PPRconf, based on a relation: PPRerr=PPRest?PPRconf, PPRconf?PPRest, PPRest/PPRconf, or PPRconf/PPRest; and utilizing the pulses-per-rotation error value PPRerr to generate an instance of maintenance information indicating that a maintenance operation should be performed on the transportation device.
    Type: Grant
    Filed: November 26, 2018
    Date of Patent: September 8, 2020
    Assignee: Kone Corporation
    Inventors: Matti Mustonen, Jyrki Laaksonheimo
  • Patent number: 10753727
    Abstract: The invention relates to a THz measuring device (1) for determining at least one layer thickness (a1, a2, a3, a4) of a test object (20, 120, 220), the measuring device Messgerät (1) comprising: a THz transmitter and receiver unit (14) for emitting THz radiation (15) along an optical axis (A) and for receiving reflected THz radiation (16) along the optical axis (A), a controller unit (10) for driving the transmitter and receiver unit (14) Hereby, the THz measuring device (1) is preferably portable including a grip region (34) for grabbing and positioning by the operator, whereby it comprises, at a front end are (5), in particular, a moulded screen (5), a support contour (7) including several support points (P, P1, P2, P3, P4) for being applied to a curved surface (18) of the test object (20, 120, 220), for perpendicular positioning on the surface (18, 118, 218).
    Type: Grant
    Filed: October 17, 2017
    Date of Patent: August 25, 2020
    Assignee: INOEX GmbH Innovationen und Ausruestungen fuer die Extrusionstechnik
    Inventors: Ralph Klose, Roland Boehm
  • Patent number: 10732262
    Abstract: An automotive detection system includes a first sensor which transmits first transmitted signals into a region and receives first reflected signals and generates first receive signals. A second sensor transmits second transmitted signals into the region and receives second reflected signals and generates second receive signals. A processor: receives first portions of the first and second receive signals and processes the first portions to generate a relative misalignment angle related to misalignment of the first and second sensors relative to each other; receives a second portion of the first receive signals; uses the received second portion of the first receive signals to determining an absolute misalignment angle of the first sensor independent of an absolute misalignment angle of the second sensor; and uses the relative misalignment angle and the absolute misalignment angle of the first sensor to generate the absolute misalignment angle of the second sensor.
    Type: Grant
    Filed: December 18, 2017
    Date of Patent: August 4, 2020
    Assignee: Veoneer US, Inc.
    Inventors: Jifeng Ru, Cuichun Xu
  • Patent number: 10732008
    Abstract: The present disclosure provides a rotational angle detecting device. An IC substrate has a flat surface extending along a rotational axis of a throttle valve. Yokes forms, together with the magnets, a closed magnetic circuit. A first Hall element outputs a first signal according to the magnetic flux density in a first direction along the flat surface. A second Hall element outputs a second signal according to the magnetic flux density in a second direction intersecting the flat surface. The first and second Hall elements are positioned within a region that is surrounded by the magnets and the yoke and that is between an edge surface and an edge surface.
    Type: Grant
    Filed: February 24, 2017
    Date of Patent: August 4, 2020
    Assignee: DENSO CORPORATION
    Inventors: Tomoyuki Takiguchi, Yoshiyuki Kono, Akitoshi Mizutani
  • Patent number: 10695651
    Abstract: Protection device (1) for sports activities, analysis and monitoring system (14) of data sent by a protection device and method for processing and calculating the data sent by a protection device where the protection device (1) comprises a localization unit (2) adapted to detect the positioning data (P) of the user, a detection unit (3) adapted to detect the movement data (A, M, W) of the user; at least a communication unit (6), operatively connected to the localization unit (2) and to the detection unit (3) and adapted to send/receive said positioning data (P) and movement data (A, M, W) to/from at least an external module (7).
    Type: Grant
    Filed: July 13, 2016
    Date of Patent: June 30, 2020
    Assignee: GHST WORLD INC.
    Inventors: Pietro Paglierani, Alberto Biancalana, Giustiniano La Vecchia, Marco Banchini
  • Patent number: 10578426
    Abstract: A first angle ? formed between a direction normal to a white board (100) that is disposed along a plurality of reinforcing bars (2) and an imaging direction of a camera (200) and a second angle ? indicating the direction of the reinforcing bar 2 which is a measurement target with respect to the imaging direction of the camera (200) are detected. In addition, a first distance D1 between the camera (200) and the white board (100) is measured by a laser distance meter provided in the camera (200). The amount of deviation D2 of the reinforcing bar (2) in the imaging direction of the camera (200) with respect to the first distance D1 is calculated on the basis of the measured first distance D1, the detected first angle ?, and the detected second angle ?.
    Type: Grant
    Filed: May 1, 2018
    Date of Patent: March 3, 2020
    Assignee: FUJIFILM Corporation
    Inventor: Tomonori Masuda
  • Patent number: 10562644
    Abstract: A laser scanning-based aircraft docking guidance system and method, the method comprising: a capturing step: laser scanning in the horizontal direction is performed on a position where the head of an aircraft is expected to appear, echo data based on the laser scanning is obtained, and the echo data is judged according to a judging condition, so as to determine whether the aircraft has appeared; a guiding step: after the aircraft has appeared, laser scanning in the horizontal direction is performed on the head of the aircraft, echo data based on the laser scanning is obtained, and the position of the nose of the aircraft is determined; a tracking step: as the aircraft moves forward, the position of the nose is tracked by adjusting the vertical scanning angle of the laser scanning, and the position of the nose is displayed in real time.
    Type: Grant
    Filed: July 2, 2015
    Date of Patent: February 18, 2020
    Assignees: SHENZHEN CIMC-TIANDA AIRPORT SUPPORT LTD., CHINA INTERNATIONAL MARINE CONTAINERS (GROUP) LTD.
    Inventors: Lan Deng, Zhaohong Zhang, Shaomin Chang, Wei Xiang, Haibin Wang, Haiqiu Liu
  • Patent number: 10540020
    Abstract: A variable mapped on an orientation of a device is smoothed to have a gradual evolution by adjusting the estimated orientation of the device obtained via sensor fusion or other sensor processing to take into consideration a current measured angular velocity.
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: January 21, 2020
    Assignee: IDHL Holdings, Inc.
    Inventors: Bryan A. Cook, Yun Li
  • Patent number: 10456075
    Abstract: A method for calibrating sensors applied to a patient to monitor rehabilitation is disclosed. The calibration method according to the invention that is insensitive to changes in the patient's body position during the calibration procedure—calibration of the flex sensors is facilitated regardless of what orientation they may be applied to the thigh and shank of patient. The calibration method uses three-axis accelerometers defined by software incorporated in local computer.
    Type: Grant
    Filed: March 27, 2017
    Date of Patent: October 29, 2019
    Assignee: Claris Healthcare Inc.
    Inventors: Geof Auchinleck, Paul Sharman
  • Patent number: 10444017
    Abstract: An attitude estimator system is provided. The attitude estimator system includes a navigation system, a Kalman filter, and a form observations module. The navigation system receives input from a first accelerometer and gyroscope, a second accelerometer and gyroscope, and a third accelerometer and gyroscope. The form observations module receives input from at least one high performance accelerometer and/or gyroscope; forms and outputs at least one of velocity-derived observations and attitude-derived observations.
    Type: Grant
    Filed: May 4, 2012
    Date of Patent: October 15, 2019
    Assignee: Honeywell International Inc.
    Inventors: Charles T. Bye, Fan Liu, Kenneth Steven Morgan
  • Patent number: 10373321
    Abstract: The present invention provides a sun position tracking method based on a black sun effect of an image sensor, a computer program including commands for causing a computer system to perform the method, and a solar sensor using the method. The sun position tracking method includes processing a plurality of images captured using a plurality of image sensors installed to capture a plurality of images of the sun irrespective of the position of the sun to estimate the center point of the black sun and track the position of the sun.
    Type: Grant
    Filed: May 1, 2017
    Date of Patent: August 6, 2019
    Assignee: Research & Business Foundation Sungkyunkwan University
    Inventors: Sukhan Lee, Rashid Saleem, Jaewoong Kim
  • Patent number: 10372888
    Abstract: In one general aspect, a method can include determining that a computing device is in a peripheral mode of operation based on an orientation of a lid portion with respect to a base portion, the orientation allowing access to one or more input devices included in an input area included in the base portion. The method further includes entering a broadcast discovery mode when the computing device is in the peripheral mode of operation, connecting the computing device to a display system listening for broadcasts, sending, to the display system, network credentials and user credentials associated with the computing device, receiving, by the computing device and from a computer system, a request to confirm the connection between the computing device and the display system, and providing, by the computing device, to the computer system, confirmation of the connection between the computing device and the display system.
    Type: Grant
    Filed: December 14, 2016
    Date of Patent: August 6, 2019
    Assignee: GOOGLE LLC
    Inventor: Jian Wei Leong
  • Patent number: 10309781
    Abstract: Techniques for computing a magnetic heading based on sensor data are described herein. An example of a device in accordance with the present techniques includes a magnetic sensor to collect sensor output data and a heading computation engine to compute a magnetic heading based on the sensor output data. The heading computation engine includes logic to measure a level of noise in the sensor output data. The heading computation engine also includes logic to determine whether to average the sensor output data based, at least in part, on the level of noise. The heading computation engine also includes logic to determine an applied sensor output based on the sensor output data. The heading computation engine also includes logic to compute a magnetic heading based, at least in part, on the applied sensor output.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: June 4, 2019
    Assignee: Intel Corporation
    Inventors: Gary A. Brist, Kevin J. Daniel
  • Patent number: 10310129
    Abstract: Sensor devices and methods for calculating an orientation of a sensor device including a magnetometer are disclosed. In one embodiment, a method of computing an orientation of a sensor device includes receiving a current magnetic field reading including at least a magnetic field magnitude, calculating a difference between the current magnetic field magnitude and a reference magnetic field magnitude, and comparing the difference between the current magnetic field magnitude and the reference magnetic field magnitude with a threshold. The method further includes adjusting a trust value of the magnetometer such that the trust value is decreased if the difference between the current magnetic field magnitude is greater than or equal to the threshold, and computing an orientation of the sensor device based at least on the trust value and the current magnetic field reading, wherein the trust value affects a reliance on the magnetic field reading in computing the orientation.
    Type: Grant
    Filed: March 31, 2015
    Date of Patent: June 4, 2019
    Assignee: YOST LABS INC.
    Inventors: Stephen P. Landers, Paul W. Yost, David Rieksts
  • Patent number: 10302434
    Abstract: The present invention relates generally to position determination, and more particularly to methods and apparatuses to determine the walking direction (heading of a user) using MEMS inertial sensors commonly found in mobile devices such as cellphones. According to some aspects, the invention includes a methodology to allow the walking angle to be determined dynamically. In embodiments, the methodology includes pattern matching accelerometer measurement data to a reference acceleration pattern.
    Type: Grant
    Filed: November 20, 2012
    Date of Patent: May 28, 2019
    Assignee: CSR TECHNOLOGY, INC.
    Inventors: Mahesh Chowdhary, Manish Sharma, Arun Kumar, Sankalp Dayal, Mahaveer Jain
  • Patent number: 10151587
    Abstract: In a method for determining navigation data, positional angle measurement values are determined using a first navigation device (310). A second navigation device (320) is then initialized using the positional angle measurement values determined by the first navigation device (310). Both navigation devices are supplied with rotational rate and acceleration measurement values from a common sensor unit in order to determine the positional angle measurement values. In the process, the first navigation device (310) produces erroneous measurements of the positional angle measurement values with a probability which is lower than as specified positional angle error rate, and the second navigation device (320) produces erroneous measurements of the positional angle measurement values with a probability which is higher than the specified positional angle error rate.
    Type: Grant
    Filed: March 6, 2015
    Date of Patent: December 11, 2018
    Assignee: NORTHROP GRUMMAN LITEF GmbH
    Inventors: Manfred Huellenkremer, Manfred Krings
  • Patent number: 10140580
    Abstract: A parametric oscillator oscillates a plurality of pseudo spin pulses SPi having mutually an identical oscillation frequency by using parametric oscillation, an interaction implementing unit performs feedback implementation of a magnitude and a sign of interaction related to each pseudo spin pulse SPi (the proportionality coefficient ?i+?Jij?j+?Kijk?j?k with respect to ?i) by using a tentative measurement result of oscillation phases ?i(tentative) of the plurality of pseudo spin pulses SPi, and a pseudo spin measuring unit measures the pseudo spins ?i of the plurality of pseudo spin pulses SPi, based on a final measurement result of oscillation phases ?i(steady) of the plurality of pseudo spin pulses SPi.
    Type: Grant
    Filed: March 25, 2015
    Date of Patent: November 27, 2018
    Assignees: Inter-University Research Institute Corporation, Research Organization of Information and Systems, NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Shoko Utsunomiya, Yoshihisa Yamamoto, Hiroki Takesue
  • Patent number: 10132827
    Abstract: A micro inertial measurement system includes a housing, a sensing module, and a damper. The sensing module includes a rigid sensing support, a measuring and controlling circuit board mounted on the rigid sensing support and an inertial sensor set on the measuring and controlling circuit board. The inertial sensor includes a gyroscope and an accelerometer. The sensing module is mounted in the housing. The damper is mounted in the housing and set in the gap between the sensing module and the inside wall of the housing. By use of the above-mentioned structure, the noise immunity of the inertial measuring system can be greatly improved, and the volume and weight of the inertial measuring system can be greatly reduced.
    Type: Grant
    Filed: November 13, 2015
    Date of Patent: November 20, 2018
    Assignee: SZ DJI TECHNOLOGY CO., LTD.
    Inventor: Tao Wang
  • Patent number: 10132829
    Abstract: An inertial measurement system is disclosed. The inertial measurement system has an accelerometer processing unit that generates a calibrated accelerometer data. The inertial measurement system further includes a magnetometer processing unit generates a calibrated magnetometer data, and a gyroscope processing unit generates a calibrated gyroscope data. Using the calibrated accelerometer data, the calibrated magnetometer data, and the calibrated gyroscope data, the inertial measurement system generates a heading angle error indicative of the accuracy of the heading angle error.
    Type: Grant
    Filed: August 23, 2013
    Date of Patent: November 20, 2018
    Assignee: Invensense, Inc.
    Inventors: Yuan Zheng, Shang-Hung Lin, Kerry Keal
  • Patent number: 10120042
    Abstract: A magnetic field sensor has an error correction signal generator circuit to inject an error correction signal into a primary signal channel to cancel an error signal component in the primary signal channel.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: November 6, 2018
    Assignee: Allegro MicroSystems, LLC
    Inventors: Aurelian Diaconu, Ryan Metivier
  • Patent number: 10108315
    Abstract: Various embodiments are generally directed to cooperation among networked devices to obtain and use a multiple-frame screenshot. In one embodiment, an apparatus comprises a processor circuit executing instructions that cause the processor circuit to receive a signal conveying a video stream from a source device; visually present video frames of the video stream on a display associated with the apparatus; maintain a rolling buffer comprising a plurality of video frames; recurringly update the plurality of video frames to represent a subset of video frames of the video stream most recently presented on the display; receive a signal indicative of a capture command; and preserve the subset of video frames as a multiple-frame screenshot in response to the capture command.
    Type: Grant
    Filed: June 27, 2012
    Date of Patent: October 23, 2018
    Assignee: INTEL CORPORATION
    Inventor: Wenlong Li
  • Patent number: 10078305
    Abstract: A method for retrieving phase information in a coherent diffraction imaging process includes acquiring a plurality of 3D data sets, each 3D data set corresponding to one of a plurality of time states, and reconstructing a 3D image of the object at a given time state using the 3D data set from all of the time states. Each 3D data set is acquired by: illuminating an object positioned in a first position with a coherent beam; measuring a first 2D diffraction pattern using an area detector; rotating the object around a tilt axis thereof to a second position that is different from the first position; re-illuminating the object positioned in the second position with the coherent beam; re-measuring a second 2D diffraction pattern using the area detector; and repeating the rotating, re-illuminating and re-measuring steps such that each 3D data set includes a predetermined number of diffraction patterns.
    Type: Grant
    Filed: October 14, 2016
    Date of Patent: September 18, 2018
    Assignee: UChicago Argonne, LLC
    Inventors: Andrew P. Ulvestad, Stephan O. Hruszkewycz, Paul H. Fuoss, Stefan M. Wild, Ashish Tripathi
  • Patent number: 10072948
    Abstract: An encoder includes a rotation position sensor, a first addition information generator, an identification information generator, and a sender. The rotation position detector is configured to detect a rotation position within one rotation of a rotation shaft of a motor. The first addition information generator is configured to generate first addition information for a period at least longer than a data sending period. The identification information generator is configured to generate identification information by which at least the first addition information is identifiable as information to be sent. The sender is configured to send, for the data sending period, sending data including the rotation position within one rotation. The sending data includes first sending data including the rotation position within one rotation, the identification information, and the first addition information.
    Type: Grant
    Filed: May 20, 2016
    Date of Patent: September 11, 2018
    Assignee: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Kunihiko Ogawa, Keita Ogoh
  • Patent number: 10033252
    Abstract: An assembly for operating a DC synchronous machine according to an exemplary aspect of the present disclosure includes, among other things, a controller that is configured to determine a position of a rotating portion utilizing a carrier signal, adjust current supply to a field winding, and monitor and adjust operation of the DC synchronous machine based on various electrical parameters relating to the carrier signal. A method for operating a DC synchronous machine is also disclosed.
    Type: Grant
    Filed: April 14, 2015
    Date of Patent: July 24, 2018
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Gregory I. Rozman, Steven J. Moss, Jacek F. Gieras
  • Patent number: 10025109
    Abstract: Visual display systems are described having means for generating stereoscopic images, a device for visual display of said stereoscopic images having a projector and a semitransparent screen; and a pair of stereoscopic spectacles. The projector according to the invention has an imager and an interference filter, the spectral transmission of which has at least one transmission band of determined width centerd around a wavelength, said wavelength being dependent on the incidence of the light on said interference filter. The projector has means allowing the angular position of the filter to be varied between two determined positions so as to transmit, according to the position, either a first spectral band or a second spectral band. The pair of stereoscopic spectacles has a first lens transmitting the first spectral band and blocking the second spectral band and a second lens providing the opposite function.
    Type: Grant
    Filed: October 29, 2015
    Date of Patent: July 17, 2018
    Assignee: Thales
    Inventors: Philippe Coni, Matthieu Grossetete, Aude Gueguen
  • Patent number: 10025891
    Abstract: The disclosed invention provides a method that exploits the correlations in the statistical properties of one inertial sensor to another. Among the dominant noise sources, the additive noise terms for different sensors are uncorrelated, however, there may be correlations between the random drift of different sensors. The method of the present invention estimates these correlations from a finite amount of calibration data in order to calculate coefficients for the optimal linear combination of multiple sensor signals. The method is a means of combining the multiple sensor outputs to obtain a virtual sensor signal with reduced drift, and in a far more time efficient and less processor intensive way than the prior art.
    Type: Grant
    Filed: September 30, 2015
    Date of Patent: July 17, 2018
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Ahmed S Zaki, Richard Vaccaro
  • Patent number: 9909872
    Abstract: Systems and methods for inertial reference system alignment are provided. In certain embodiments, a system comprises an inertial reference system, the inertial reference system providing motion measurements; and a processing system coupled to receive the motion measurements from the inertial reference system. Further, the processing system is configured to execute instructions that direct the processing system to identify one or more frequencies in the spectrum of the motion measurements that are associated with vibrations; attenuate the motion measurements at the one or more frequencies; and use the attenuated measurements to aid in the production of navigation information.
    Type: Grant
    Filed: July 8, 2014
    Date of Patent: March 6, 2018
    Assignee: Honeywell International Inc.
    Inventors: Subhabrata Ganguli, Michael Ray Elgersma
  • Patent number: 9800768
    Abstract: An electronic device having a camera module. The electronic device comprises: a Printed Circuit Board (PCB) located on a surface of the camera module; a lens module mounted on a first area of the PCB; fixing maintaining components mounted on a second area of the PCB; and a third area located between the first area and the second area, and having at least one opening.
    Type: Grant
    Filed: August 27, 2015
    Date of Patent: October 24, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Seungjae Bae, Soonwoong Yang, Seungki Choi
  • Patent number: 9689763
    Abstract: A cutout portion is formed in a substrate of a magnetic detection device, the cutout portion opening at an outer edge of the substrate. Magnetic detection elements of a magnetic sensor detects magnetic field formed by first and second collector portions. A mold section encapsulates the magnetic detection elements. The magnetic sensor is surface mounted such that a portion of the mold section overlaps with the cutout portion. The first collector portion faces a front surface of the magnetic sensor. A portion of the second collector portion is positioned in the cutout portion to face a rear surface of the magnetic sensor. Accordingly, compared to a case where a cutout portion is not provided, a magnetic circuit gap between the first and second collector portions is reduced.
    Type: Grant
    Filed: November 20, 2015
    Date of Patent: June 27, 2017
    Assignee: DENSO CORPORATION
    Inventors: Yoshiki Takahashi, Shigetoshi Fukaya
  • Patent number: 9689762
    Abstract: A hole is formed in a substrate of a magnetic detection device, the hole being spaced away from an outer edge of the substrate. Magnetic detection elements of a magnetic sensor detects magnetic field formed at first and second collector portions. A mold section encapsulates the magnetic detection elements. The magnetic sensor is surface mounted such that a portion of the mold section overlaps with the hole. The first collector portion faces a front surface of the magnetic sensor. A portion of the second collector portion is positioned in the hole to face a rear surface of the magnetic sensor. Accordingly, compared to a case where a hole is not provided, a magnetic circuit gap between the first and second collector portions is reduced.
    Type: Grant
    Filed: November 20, 2015
    Date of Patent: June 27, 2017
    Assignee: DENSO CORPORATION
    Inventors: Yoshiki Takahashi, Shigetoshi Fukaya