Dilution Of Precision Compensating Patents (Class 701/475)
  • Patent number: 9599632
    Abstract: Biometric monitoring devices, including various technologies that may be implemented in such devices, are discussed herein. Additionally, techniques for utilizing altimeters in biometric monitoring devices are provided. Such techniques may, in some implementations, involve recalibrating a biometric monitoring device altimeter based on location data; using altimeter data as an aid to gesture recognition; and/or using altimeter data to manage an airplane mode of a biometric monitoring device.
    Type: Grant
    Filed: May 30, 2014
    Date of Patent: March 21, 2017
    Assignee: Fitbit, Inc.
    Inventor: Shelten Gee Jao Yuen
  • Patent number: 9291718
    Abstract: An altitude information acquiring device includes a measuring unit which measures atmospheric pressure; a wireless communication unit which performs near field communication with an external device; and an altitude information acquiring unit which acquires altitude information from an external positioning device through the wireless communication unit. An inversion detecting unit detects an inversion of a changing direction of the atmospheric pressure periodically measured by the measuring unit, and a communication control unit controls a timing to acquire the altitude information through the wireless communication unit at a set timing, based on the inversion detected by the inversion detecting unit.
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: March 22, 2016
    Assignee: CASIO COMPUTER CO., LTD.
    Inventor: Takeshi Miyake
  • Patent number: 9063212
    Abstract: Low energy location beacons provide a robust indoor navigation solution that is potentially accessible to anyone with a cell phone.
    Type: Grant
    Filed: February 11, 2013
    Date of Patent: June 23, 2015
    Assignee: Trimble Navigation Limited
    Inventor: Edward Forster Jones, Jr.
  • Patent number: 9031785
    Abstract: This aircraft navigation assistance system comprises an inertial navigation module adapted for providing first positional information from accelerometric and gyrometric measurements, and a module adapted for determining second positional information from satellite positioning data. The system is characterized in that it comprises means for estimating a first localization of the aircraft at a time of estimation on the basis of first positional information determined from accelerometric and gyrometric measurements at said time of estimation and second positional information determined from positioning data received prior to said time of estimation, said first localization being determined independently from any positioning data received in a time interval preceding said time of estimation, advantageously equal to a time to alert.
    Type: Grant
    Filed: February 6, 2014
    Date of Patent: May 12, 2015
    Assignee: Dassault Aviation
    Inventor: Pierre Marcon
  • Patent number: 8972184
    Abstract: An apparatus and method for determining an orbit of a geostationary satellite is provided. The orbit of the geostationary satellite may be determined using at least one pseudo-range of the geostationary satellite calculated based on an orbit and a position of at least one global positioning system (GPS) satellite, position information of the geostationary satellite, and an angle between the geostationary satellite and each GPS satellite.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: March 3, 2015
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Yoo La Hwang, Byoung Sun Lee
  • Publication number: 20140358426
    Abstract: Provided is a mobile terminal. The mobile terminal includes a receiving unit configured to receive GPS information from a GPS satellite, an acquisition unit configured to acquire sensing information from at least one of a speed sensor and a steering sensor of a vehicle connected through an external interface, a determination unit configured to determine whether the vehicle is positioned within at least one of a shadow area and a multi-path area using at least one of the GPS information and the sensing information, and a calculation unit configured to correct a current position coordinate value of the vehicle calculated from the GPS information using the sense information when the vehicle is determined to be positioned within the at least one area.
    Type: Application
    Filed: March 13, 2014
    Publication date: December 4, 2014
    Applicant: HYUNDAI MOBIS Co., Ltd.
    Inventor: Bum Jo KIM
  • Patent number: 8655578
    Abstract: An electronic device 1 receives ephemeris information from a GPS satellite at intermittent timings TE1, TE2, and TE3 and stores the received information in its memory. In addition, the electronic device 1 receives time information at intermittent timings TC1, TC2, TC3, and TC4, and corrects a clocked time based on the received time information. Then, at positioning timing T1, the electronic device 1 captures a transmission signal from the GPS satellite while synchronizing timing with the GPS satellite based on the clocked time, and performs positioning based on the captured transmission signal and the ephemeris information stored in the memory.
    Type: Grant
    Filed: November 19, 2010
    Date of Patent: February 18, 2014
    Assignee: Casio Computer Co., Ltd
    Inventor: Masao Sambongi
  • Patent number: 8504290
    Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, are disclosed for track simplification and correction. In one aspect, a track data set having track points defining a course can be accessed and inaccurate track points and incorrect track points can be identified, wherein identifying inaccurate track points includes comparing, for one or more of the track points, a dilution of precision (DOP) value associated with the track point to a DOP threshold, and identifying incorrect track points includes performing an error correction process. Also, a corrected track can be generated by removing identified inaccurate track points and incorrect track points from the track data set. Further, identifying an inaccurate track point can include determining that the DOP value associated with the track point exceeds the DOP threshold. Additionally, the DOP threshold can be specified by user input.
    Type: Grant
    Filed: May 31, 2012
    Date of Patent: August 6, 2013
    Assignee: Apple Inc.
    Inventor: Nikhil Bhatt
  • Publication number: 20130166195
    Abstract: A system and method for locating, tracking, and/or monitoring the status of personnel and/or assets (collectively “trackees”), both indoors and outdoors, is provided. Tracking data obtained from any number of sources utilizing any number of tracking methods may be provided as input to a mapping application. The mapping application generates position estimates for trackees using a suite of mapping tools to make corrections to the tracking data. The mapping application further uses information from building data, when available, to enhance position estimates. Indoor tracking methods including sensor fusion methods, map matching methods, and map building methods may be implemented compute a more accurate tracking estimate for trackees. Outdoor tracking methods may be implemented to enhance outdoor tracking data by combining tracking estimates such as inertial tracks with magnetic and/or compass data if and when available, and with GPS, if and when available.
    Type: Application
    Filed: September 14, 2012
    Publication date: June 27, 2013
    Inventors: Amrit Bandyopadhyay, Daniel Hakim, Benjamin E. Funk, Eric Asher Kohn, Carole A. Teolis, Gilmer Blankenship
  • Patent number: 8352171
    Abstract: An auxiliary satellite positioning system is applied to a first satellite positioning apparatus. The auxiliary positioning system includes a detection module, a transmission interface and a positioning module. A second satellite positioning module having a satellite data can be detected by the detection module via a wireless transmission protocol. The satellite data can be transmitted by the transmission interface to the first satellite positioning module from the second satellite positioning module. The satellite data can be used by the positioning module to implement a satellite positioning action.
    Type: Grant
    Filed: January 10, 2007
    Date of Patent: January 8, 2013
    Assignee: MiTAC International Corp.
    Inventor: Hung-Yi Lin
  • Patent number: 8346469
    Abstract: A method and apparatus for determining protection levels in a satellite navigation system includes the following steps: (1) determining an integrity risk at the alert limit for a plurality of application situations—for example, starting from approaches in category I (Category I precision approach) up to the operation “oceanic enroute;” (2) determining an interval of the alert limits between the largest set of alert limits which produces too high an integrity risk, and the smallest set of alert limits which produces an acceptable integrity risk; and (3) carrying out an interval nesting for the interval of the alert limits that was determined in the previous step, the integrity risk between the horizontal and the vertical being divided in the same way as it is obtained from the relationship between these integrity risks in the largest set of alert limits.
    Type: Grant
    Filed: July 23, 2008
    Date of Patent: January 1, 2013
    Assignee: Astrium GmbH
    Inventor: Hans Trautenberg
  • Patent number: 8195393
    Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, are disclosed for track simplification and correction. In one aspect, a track data set having track points defining a course can be accessed and inaccurate track points and incorrect track points can be identified, wherein identifying inaccurate track points includes comparing, for one or more of the track points, a dilution of precision (DOP) value associated with the track point to a DOP threshold, and identifying incorrect track points includes performing an error correction process. Also, a corrected track can be generated by removing identified inaccurate track points and incorrect track points from the track data set. Further, identifying an inaccurate track point can include determining that the DOP value associated with the track point exceeds the DOP threshold. Additionally, the DOP threshold can be specified by user input.
    Type: Grant
    Filed: June 30, 2009
    Date of Patent: June 5, 2012
    Assignee: Apple Inc.
    Inventor: Nikhil Bhatt
  • Patent number: 8190365
    Abstract: Systems and methods for processing navigational solutions are provided. In this regard, a representative system includes a navigational computing device comprising a processor and memory that stores a navigational solution manager that is executed by the processor to provide a receiver position. The navigational solution manager is configured to collect navigational data from at least one satellite vehicle, compute initialization navigational measurements based on the collected navigational data, and compute the receiver position using the initialization navigation measurements.
    Type: Grant
    Filed: November 5, 2007
    Date of Patent: May 29, 2012
    Assignee: CSR Technology Inc.
    Inventors: Mangesh Chansarkar, Daniel Liao
  • Patent number: 8165728
    Abstract: A cooperative engagement group-position determining system employs a group of at least three cooperative units, for example a group of unmanned aerial vehicles (UAV's), with each unit including a GPS system for determining a GPS-based position, an inter-distance measurement module for measuring a distance of the unit relative to at least one other unit, and a computer having a computer-readable storage medium encoded with a program algorithm for correcting the GPS-based position based on at least one relative distance between two units, providing an improved GPS-based position for the unit and for the group. The system can also include a ground controller, for example, for providing flight control for UAV's.
    Type: Grant
    Filed: August 19, 2008
    Date of Patent: April 24, 2012
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Abraham Schultz