Patents by Inventor Christopher Thewalt

Christopher Thewalt 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).

  • Model-based scan line encoder
    Patent number: 9832487
    Abstract: A model-based scan line encoder is disclosed. A method of model-based scan line encoding includes defining a geometry model for describing a scan line of a scan, the scan line including multiple scan points. The method further includes calculating a trajectory model representing an approximate pattern of deviation of the multiple scan points relative to the geometry model. The method further includes calculating multiple residuals, each of the residuals associated with a difference between the deviation of the scan points and the trajectory model. The method may further include compressing the residuals.
    Type: Grant
    Filed: October 29, 2013
    Date of Patent: November 28, 2017
    Assignee: LEICA GEOSYSTEMS, AG
    Inventors: Gregory Charles Walsh, Christopher Thewalt
  • MODEL-BASED SCAN LINE ENCODER
    Publication number: 20140334554
    Abstract: A model-based scan line encoder is disclosed. A method of model-based scan line encoding includes defining a geometry model for describing a scan line of a scan, the scan line including multiple scan points. The method further includes calculating a trajectory model representing an approximate pattern of deviation of the multiple scan points relative to the geometry model. The method further includes calculating multiple residuals, each of the residuals associated with a difference between the deviation of the scan points and the trajectory model. The method may further include compressing the residuals.
    Type: Application
    Filed: October 29, 2013
    Publication date: November 13, 2014
    Applicant: LEICA GEOSYSTEMS AG
    Inventors: Gregory Charles Walsh, Christopher Thewalt