Patents by Inventor Hamid Mokhtarzadeh

Hamid Mokhtarzadeh 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: 20200372409
    Abstract: A system and method for compensating for electromagnetic (EM) distortion fields caused by one or more distortion objects is provided. A system and method for compensating for electromagnetic (EM) distortion fields caused by one or more distortion objects is provided. For example, an EM compensation device receives a plurality of EM field calibration measurements. The EM compensation device trains a machine learning dataset to compensate for the EM distortion fields from the one or more distortion objects using the plurality of EM field calibration measurements and/or an EM field model. The EM compensation device receives one or more EM field procedure measurements from a medical device performing a medical procedure. The EM compensation device predicts a spatial location of the medical device based on the EM field procedure measurement and the machine learning dataset.
    Type: Application
    Filed: May 21, 2020
    Publication date: November 26, 2020
    Inventors: Kyle H. Srivastava, Anton Plotkin, Daniel J. Foster, Richard J. Spartz, Hamid Mokhtarzadeh
  • Patent number: 9529093
    Abstract: Systems and methods for estimating attitude using double differenced GPS carrier phase measurements are provided. An exemplary computer-implemented method includes obtaining, by one or more computing devices, an initial candidate attitude. The method includes determining, by the one or more computing devices, a plurality of expected double differenced carrier phase values based on the initial candidate attitude. The method includes inputting, by the one or more computing devices, the plurality of expected double differenced carrier phase values into a cost function. The cost function respectively compares the plurality of expected double differenced carrier phase values to a plurality of measured double differenced carrier phase values. The method includes minimizing, by the one or more computing devices, the cost function. The method includes selecting, by the one or more computing devices, a final candidate attitude associated with the minimized cost function as the attitude of the device.
    Type: Grant
    Filed: October 15, 2013
    Date of Patent: December 27, 2016
    Assignee: Google Inc.
    Inventors: Jonathan Nichols, James Brian Roseborough, Craig Lewin Robinson, Hamid Mokhtarzadeh
  • Publication number: 20150168562
    Abstract: Systems and methods for estimating attitude using double differenced GPS carrier phase measurements are provided. An exemplary computer-implemented method includes obtaining, by one or more computing devices, an initial candidate attitude. The method includes determining, by the one or more computing devices, a plurality of expected double differenced carrier phase values based on the initial candidate attitude. The method includes inputting, by the one or more computing devices, the plurality of expected double differenced carrier phase values into a cost function. The cost function respectively compares the plurality of expected double differenced carrier phase values to a plurality of measured double differenced carrier phase values. The method includes minimizing, by the one or more computing devices, the cost function. The method includes selecting, by the one or more computing devices, a final candidate attitude associated with the minimized cost function as the attitude of the device.
    Type: Application
    Filed: October 15, 2013
    Publication date: June 18, 2015
    Applicant: Google Inc.
    Inventors: Jonathan Nichols, James Brian Roseborough, Craig Lewin Robinson, Hamid Mokhtarzadeh