Patents by Inventor Jonathan Byron Hunter

Jonathan Byron Hunter 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).

  • Patent number: 8570587
    Abstract: According to aspects of the embodiments, there is provided methods and apparatus for sensing the movement of a moving surface by utilizing a plurality of reference patterns positioned on the surface, using the precision of the ROS Start of Scan Clock, and the uses of encoder and MOB sensors. The plurality of reference patterns are placed a known number of scanlines apart. The MOB sensor and encoder measure the distance between reference patterns. Increase accuracy is achieved by sampling the encoder signal with the ROS Master Clock and calculating a fractional encoder count at the first and last encoder counts of the measurement. The use of fractional encoder counts provides a speed measurement with greater tolerance for variations in encoder dimensions and belt thickness.
    Type: Grant
    Filed: April 21, 2010
    Date of Patent: October 29, 2013
    Assignee: Xerox Corporation
    Inventors: David Mark Kerxhalli, Jonathan Byron Hunter
  • Publication number: 20110261372
    Abstract: According to aspects of the embodiments, there is provided methods and apparatus for sensing the movement of a moving surface by utilizing a plurality of reference patterns positioned on the surface, using the precision of the ROS Start of Scan Clock, and the uses of encoder and MOB sensors. The plurality of reference patterns are placed a known number of scanlines apart. The MOB sensor and encoder measure the distance between reference patterns. Increase accuracy is achieved by sampling the encoder signal with the ROS Master Clock and calculating a fractional encoder count at the first and last encoder counts of the measurement. The use of fractional encoder counts provides a speed measurement with greater tolerance for variations in encoder dimensions and belt thickness.
    Type: Application
    Filed: April 21, 2010
    Publication date: October 27, 2011
    Applicant: XEROX CORPORATION
    Inventors: David Mark KERXHALLI, Jonathan Byron Hunter