Patents Assigned to IDHL Holdings, Inc.
  • Patent number: 10325005
    Abstract: Methods and apparatuses for calibrating attitude-independent parameters of a 3-D magnetometer are provided. A calibration method includes storing and updating data related to a N×9 matrix T and a N×1 matrix U extended for each measurement with an additional row and an additional element, respectively, the additional row and the additional element being calculated based on values measured by the 3-D magnetometer for the respective measurement. The method further includes calculating analytically (1) a symmetric non-orthogonal 3×3 matrix D representing scaling and skew of the 3-D magnetometer measured values and (2) a vector b representing bias of the 3-D magnetometer measured values, using the stored data and a singular value decomposition (SVD) method.
    Type: Grant
    Filed: November 17, 2011
    Date of Patent: June 18, 2019
    Assignee: IDHL Holdings, Inc.
    Inventor: Hua Sheng
  • Patent number: 10159897
    Abstract: A gaming system comprises a handheld user input device, a processor for receiving input data from the handheld user input device and a gaming application for receiving data from the processor based on the received input data from the handheld user input device. The handheld user input device emulates one of a plurality of different devices associated with the gaming application. Each of the plurality of different devices have a set of input commands associated therewith. The set of input commands associated with the one of a plurality of different devices includes a command based on one of motion and orientation of the handheld device.
    Type: Grant
    Filed: March 18, 2014
    Date of Patent: December 25, 2018
    Assignee: IDHL Holdings, Inc.
    Inventors: Arno Penzias, Matthew G. Liberty
  • Patent number: 10120461
    Abstract: The present inventions generally relate to methods and dedicated apparatuses outputting a variable mapped on a device orientation in a non-inertial reference system, with the device orientation being estimated using measurements of motion sensors (such as 3D accelerometers and gyroscopes) and a magnetometer or other similar sensors including cameras. 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: April 30, 2014
    Date of Patent: November 6, 2018
    Assignee: IDHL Holdings, Inc.
    Inventors: Bryan A. Cook, Yun Li
  • Patent number: 10120463
    Abstract: A forward pointing direction associated with a handheld device is estimated or determined by, for example, calculating a center of rotation of the device. A resultant combined or selected bias estimate may then be used to compensate the biased output of the sensor in, e.g., a 3D pointing device.
    Type: Grant
    Filed: October 27, 2017
    Date of Patent: November 6, 2018
    Assignee: IDHL Holdings, Inc.
    Inventors: Matthew G. Liberty, Bryan A. Cook
  • Patent number: 9946731
    Abstract: Devices, computer readable medium, and methods for selecting an object displayed on a screen and providing information about that object.
    Type: Grant
    Filed: March 10, 2015
    Date of Patent: April 17, 2018
    Assignee: IDHL Holdings, Inc.
    Inventors: Charles Gritton, Daniel Simpkins, Tom Morgan
  • Patent number: 9811175
    Abstract: A forward pointing direction associated with a handheld device is estimated or determined by, for example, calculating a center of rotation of the device. A resultant combined or selected bias estimate may then be used to compensate the biased output of the sensor in, e.g., a 3D pointing device.
    Type: Grant
    Filed: November 25, 2015
    Date of Patent: November 7, 2017
    Assignee: IDHL Holdings, Inc.
    Inventors: Matthew G. Liberty, Bryan A. Cook