Patents by Inventor Glenn Donald MacGougan

Glenn Donald MacGougan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20190191275
    Abstract: Among other things, we describe a method that includes, on an electronic device, determining that a current quality metric of signals received by a location system of the electronic device does not meet a threshold quality metric, and based on the determination, selecting a recommendation for changing a position of the device in a manner that would alter the current quality metric. This aspect can also include corresponding systems, apparatus, and computer program products stored on a storage device.
    Type: Application
    Filed: February 21, 2019
    Publication date: June 20, 2019
    Inventors: Pejman Lotfali Kazemi, Glenn Donald MacGougan, Robert Mayor
  • Patent number: 10274605
    Abstract: Systems, methods and non-transitory, computer-readable storage mediums are disclosed for a multimode GNSS odometer. In some implementations, a method comprises: obtaining, by a device, position and velocity data from a sensor embedded in, or coupled to the device; statistically combining, by the device, the position and velocity data to generate a first delta distance travelled by the device over a period of time, the statistical combining including weighting a contribution of an integrated speed to the first delta distance, the integrated speed derived from the obtained velocity data and period of time; filtering, by the device, the first delta distance to generate a filtered first delta distance; and generating, by the device, a first estimate of total distance travelled by the device based on the filtered first delta distance.
    Type: Grant
    Filed: August 27, 2015
    Date of Patent: April 30, 2019
    Assignee: Apple Inc.
    Inventors: Pejman Lotfali Kazemi, Glenn Donald MacGougan
  • Patent number: 10261192
    Abstract: Methods, systems and computer program products for radionavigation for swimmers are described. A mobile device configured to estimate a location using radio frequency signals can estimate a position of the swimmer when the mobile device is worn on a limb of the swimmer and periodically submerged. The mobile device can supply auxiliary information to a radionavigation subsystem to correct a navigation solution affected by limb motion of the swimmer and affected by the periodic submersion of the mobile device.
    Type: Grant
    Filed: June 10, 2016
    Date of Patent: April 16, 2019
    Assignee: Apple Inc.
    Inventors: Isaac Thomas Miller, Glenn Donald MacGougan, Xiao Xiao
  • Publication number: 20190094379
    Abstract: The disclosed embodiments use 3D city models and shadow mapping to improve altitude fixes in urban environments. In an embodiment, a method comprises: generating a set of three-dimensional (3D) candidate positions in a geographic area of interest; predicting global navigation satellite system (GNSS) signal visibility at selected ones of the 3D candidate positions; receiving GNSS signals at a current location of the mobile device; determining observed satellite visibility based on the received GNSS signals; comparing the predicted satellite visibility with the observed satellite visibility; determining a position fix based on a result of the comparing; determining an indoor environment where the mobile device is located based at least on an altitude component of the position fix; obtaining structural data for the identified indoor environment; and determining a floor lower bound for the current location of the mobile device based on the altitude component and the structural data.
    Type: Application
    Filed: September 28, 2017
    Publication date: March 28, 2019
    Applicant: Apple Inc.
    Inventors: Kumar Gaurav Chhokra, Glenn Donald MacGougan, Robert Mayor
  • Patent number: 10171946
    Abstract: Systems, methods, devices and computer-readable storage mediums are disclosed for assisted GNSS velocity estimation. In an implementation, a method comprises: obtaining, by a mobile device, a step-based speed measurement based on sensor data; obtaining, by the mobile device, a step-based speed uncertainty associated with the step-based speed measurement; determining, by the mobile device, that one or more assistance conditions are met; responsive to the determining, assisting a state estimator using the step-based speed measurement and the associated step-based speed uncertainty; and estimating at least one of the position, velocity or speed of the mobile device using the assisted state estimator.
    Type: Grant
    Filed: September 23, 2016
    Date of Patent: January 1, 2019
    Assignee: Apple Inc.
    Inventors: Glenn Donald MacGougan, Changlin Ma, Kumar Gaurav Chhokra, Robert Mayor
  • Publication number: 20180349728
    Abstract: The disclosed embodiments are directed to detecting a user activity based on patterns in location data. In an embodiment, a method comprises: obtaining, by a processor of a computing device, location data; detecting, by the processor, a pattern in the location data; determining, by the processor and based on the detected pattern, an activity associated with a mobile device; and adjusting, by the processor, one or more parameters of a location data filter configured to process the location data.
    Type: Application
    Filed: June 2, 2017
    Publication date: December 6, 2018
    Applicant: Apple Inc.
    Inventors: Lei Wang, Isaac Thomas Miller, Hyojoon Bae, Christina Selle, Glenn Donald MacGougan
  • Patent number: 10085115
    Abstract: System and method for submitting a location of a mobile device to a public service for providing emergency assistance are described. A mobile device can determine that a user is making an emergency call from the mobile device. The mobile device can then enable a location determination function of the mobile device and determine a location of the mobile device. The mobile device can determine the location in multiple attempts, including, in a first time window, attempting to determine a location with low uncertainty and, if the attempt fails, determining a location with high uncertainty in a second time window. The mobile device can then submit the location to a dispatcher through a mobile network operator.
    Type: Grant
    Filed: August 11, 2017
    Date of Patent: September 25, 2018
    Assignee: Apple Inc.
    Inventors: Robert Mayor, Glenn Donald MacGougan
  • Patent number: 10078138
    Abstract: Techniques for GNSS positioning using three-dimensional (3D) building models are described. A processor can determine a probable path for a signal from a GNSS space vehicle (e.g., a satellite) to reach the GNSS receiver. The probable path can include one or more specular reflections. The processor can determine a Doppler correction based on the probable path, including inverting a sense of a vector of the Doppler correction for each reflection. The processor can then incorporate the Doppler correction in an estimated velocity of the mobile device, an estimated position of the mobile device, or both.
    Type: Grant
    Filed: September 8, 2015
    Date of Patent: September 18, 2018
    Assignee: Apple Inc.
    Inventors: Kumar Gaurav Chhokra, Glenn Donald MacGougan
  • Patent number: 10024876
    Abstract: Systems, methods and computer-readable mediums are disclosed for GNSS velocity estimation for pedestrians. In some implementations, a method includes receiving a periodic sensor signal; determining a fundamental motion frequency of the periodic sensor signal; extracting a periodicity feature from the periodic sensor signal based on the fundamental motion frequency; and responsive to the extracting, initiating pedestrian velocity estimation.
    Type: Grant
    Filed: June 5, 2015
    Date of Patent: July 17, 2018
    Assignee: Apple Inc.
    Inventors: Isaac Thomas Miller, Glenn Donald MacGougan, Robert Mayor
  • Patent number: 9945956
    Abstract: Techniques for GNSS positioning using three-dimensional (3D) building models are described. A processor of a mobile device can determine a lower bound of uncertainty for an estimated position of the mobile device. The processor can receive an estimated position from a GNSS receiver of the mobile device. The processor can acquire geographic feature data including 3D building models of buildings and other geographic features that are located near the estimated position and may reflect GNSS signals. The processor can then determine a lower bound of uncertainty of the estimated position, regardless of an estimated uncertainty provided by a GNSS estimator. The lower bound can be higher (e.g., have a greater error margin) than the uncertainty value provided by the GNSS estimator. The processor can then present the estimated position, in association with an error margin corresponding to the lower bound of uncertainty, on a map user interface of the mobile device.
    Type: Grant
    Filed: September 8, 2015
    Date of Patent: April 17, 2018
    Assignee: Apple Inc.
    Inventors: Kumar Gaurav Chhokra, Glenn Donald MacGougan
  • Patent number: 9933527
    Abstract: Systems, methods, and computer program products for determining the location and direction of travel of a mobile device using map vector constraints is disclosed.
    Type: Grant
    Filed: August 29, 2016
    Date of Patent: April 3, 2018
    Assignee: Apple Inc.
    Inventors: Glenn Donald MacGougan, Stephen J. Rhee, Robert Mayor, Ronald K. Huang
  • Patent number: 9918294
    Abstract: Methods, program products, and systems of location estimation using a probability density function are disclosed. In general, in one aspect, a server can estimate an effective altitude of a wireless access gateway using harvested data. The server can harvest location data from multiple mobile devices. The harvested data can include a location of each mobile device and an identifier of a wireless access gateway that is located within a communication range of the mobile device. The server can calculate an effective altitude of the wireless access gateway using a probability density function of the harvested data. The probability density function can be a sufficient statistic of the received set of location coordinates for calculating an effective altitude of the wireless access gateway. The server can send the effective altitude of the wireless access gateway to other mobile devices for estimating altitudes of the other mobile devices.
    Type: Grant
    Filed: September 22, 2016
    Date of Patent: March 13, 2018
    Assignee: Apple Inc.
    Inventors: Lukas M. Marti, Glenn Donald MacGougan, Robert Mayor, Ronald K. Huang, Jason Dere, Yefim Grosman
  • Publication number: 20180048990
    Abstract: System and method for submitting a location of a mobile device to a public service for providing emergency assistance are described. A mobile device can determine that a user is making an emergency call from the mobile device. The mobile device can then enable a location determination function of the mobile device and determine a location of the mobile device. The mobile device can determine the location in multiple attempts, including, in a first time window, attempting to determine a location with low uncertainty and, if the attempt fails, determining a location with high uncertainty in a second time window. The mobile device can then submit the location to a dispatcher through a mobile network operator.
    Type: Application
    Filed: August 11, 2017
    Publication date: February 15, 2018
    Applicant: Apple Inc.
    Inventors: Robert Mayor, Glenn Donald MacGougan
  • Publication number: 20170357007
    Abstract: Methods, systems and computer program products for radionavigation for swimmers are described. A mobile device configured to estimate a location using radio frequency signals can estimate a position of the swimmer when the mobile device is worn on a limb of the swimmer and periodically submerged. The mobile device can supply auxiliary information to a radionavigation subsystem to correct a navigation solution affected by limb motion of the swimmer and affected by the periodic submersion of the mobile device.
    Type: Application
    Filed: June 10, 2016
    Publication date: December 14, 2017
    Applicant: Apple Inc.
    Inventors: Isaac Thomas Miller, Glenn Donald MacGougan, Xiao Xiao
  • Publication number: 20170357005
    Abstract: Techniques for improving positioning performance using categorization of navigation signal environment are described. A mobile device can receive signal environment data. The signal environment data can represent multiple geographic areas. The signal environment data includes a respective signal environment category for each geographic area, each signal environment category corresponding to a degree to which geographic features in the respective geographic area affect reception of the navigation signals. The mobile device can determine that the mobile device is located in a particular geographic area represented in the signal environment data. The mobile device can then select a set of one or more rules for aiding location estimation. The set of one or more rules can correspond to the signal environment category of the geographic area. The mobile device can estimate a location of the mobile device using the navigation signals and under the set of one more rules.
    Type: Application
    Filed: September 23, 2016
    Publication date: December 14, 2017
    Applicant: Apple Inc.
    Inventors: Jonathan M. Diamond, Glenn Donald MacGougan, Kumar Gaurav Chhokra, Robert Mayor, Yishuang Geng
  • Publication number: 20170359694
    Abstract: Techniques for location source control for paired devices are described. Location source control selects a location source for a mobile device. The mobile device can receive, from an application program, a request for determining a location of the mobile device. The mobile device can determine a first location estimate using a location subsystem of the mobile device. The mobile device can determine whether to provide the first location estimate as input to the application program, or to provide a second location estimate as input to the application program. The second location estimate can be an estimated location of the companion device and determined by the companion device.
    Type: Application
    Filed: September 23, 2016
    Publication date: December 14, 2017
    Applicant: Apple inc.
    Inventors: Bradley Joel Jensen, Glenn Donald MacGougan, Kumar Gaurav Chhokra, Robert Mayor, Ronald K. Huang, Stephen J. Rhee
  • Publication number: 20170347239
    Abstract: Systems, methods, devices and computer-readable storage mediums are disclosed for assisted GNSS velocity estimation. In an implementation, a method comprises: obtaining, by a mobile device, a step-based speed measurement based on sensor data; obtaining, by the mobile device, a step-based speed uncertainty associated with the step-based speed measurement; determining, by the mobile device, that one or more assistance conditions are met; responsive to the determining, assisting a state estimator using the step-based speed measurement and the associated step-based speed uncertainty; and estimating at least one of the position, velocity or speed of the mobile device using the assisted state estimator.
    Type: Application
    Filed: September 23, 2016
    Publication date: November 30, 2017
    Applicant: Apple Inc.
    Inventors: Glenn Donald MacGougan, Changlin Ma, Kumar Gaurav Chhokra, Robert Mayor
  • Patent number: 9817102
    Abstract: Methods, systems and computer program products for determining and filtering potential outliers in RF signals used in radionavigation are described. A radionavigation subsystem of a mobile device can determine a first location estimate of the mobile device. The mobile device can determine a free direction from the first location estimate. The free direction can be a direction along which RF signals may cause greater position errors than RF signals from other directions may cause. The mobile device can determine a potential outlier among the received RF signals, the potential outlier being an RF signal from a signal source in the free direction. The mobile device can indicate to the radionavigation subsystem that a weight of the potential outlier shall be reduced when determining a second location estimate of the mobile device using the RF signals.
    Type: Grant
    Filed: June 10, 2016
    Date of Patent: November 14, 2017
    Assignee: Apple Inc.
    Inventors: Isaac Thomas Miller, Glenn Donald MacGougan, Kumar Gaurav Chhokra
  • Patent number: 9791572
    Abstract: Crowd-sourced location data from client devices is processed using enhanced filtering techniques in non-realtime by a centralized server process to improve the accuracy and reliability of georeferenced geodata. At a server computer, enhanced filtering techniques make use of future information to improve georeferencing of the geodata. In some implementations, the server computer can be configured to implement batch processing of raw GNSS data and other crowd-sourced location data (e.g., wireless scan data, inertial sensor data) using, for example, a smoothing filter or batch estimator. Augmentation data (e.g., satellite ephemeris data, clock offset and ionospheric delay) and sensor data independent of client devices can also be used by the server computer to augment the crowd-sourced location data to further improve georeferencing of geodata.
    Type: Grant
    Filed: September 30, 2014
    Date of Patent: October 17, 2017
    Assignee: Apple Inc.
    Inventors: Glenn Donald MacGougan, Robert Mayor, Ronald K. Huang
  • Patent number: 9736633
    Abstract: System and method for submitting a location of a mobile device to a public service for providing emergency assistance are described. A mobile device can determine that a user is making an emergency call from the mobile device. The mobile device can then enable a location determination function of the mobile device and determine a location of the mobile device. The mobile device can determine the location in multiple attempts, including, in a first time window, attempting to determine a location with low uncertainty and, if the attempt fails, determining a location with high uncertainty in a second time window. The mobile device can then submit the location to a dispatcher through a mobile network operator.
    Type: Grant
    Filed: July 1, 2016
    Date of Patent: August 15, 2017
    Assignee: Apple Inc.
    Inventors: Robert Mayor, Glenn Donald MacGougan