Patents by Inventor Pieter John Ganzer

Pieter John Ganzer 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).

  • System and method for evaluating and correcting image quality in an image generating device
    Patent number: 8469485
    Abstract: A system evaluates image quality in an image generating system. The system includes a test pattern generator configured to generate an image with an image generating system, an image capture device configured to generate a digital signal corresponding to the generated test pattern, an image evaluator configured to process the digital signal to detect and correct anomalies detected in the generated test pattern, a plurality of calibration tools, each calibration tool being comprised of at least one test pattern, at least one set of detection criteria, and at least one set of anomaly correction parameters, and a controller configured to select the calibration tools for operation of the test pattern generator and the image evaluator in accordance with a predetermined sequence that attenuates changes arising from application of correction parameters of one calibration tool upon a later selected calibration tool.
    Type: Grant
    Filed: January 23, 2012
    Date of Patent: June 25, 2013
    Assignee: Xerox Corporation
    Inventors: Bhaskar T. Ramakrishnan, Andrew S. Yeh, Mary Lynne Morrow, Ernest I. Esplin, Pieter John Ganzer, John Albert Wright, Brent Edward Fleming
  • System And Method For Evaluating And Correcting Image Quality In An Image Generating Device
    Publication number: 20120120144
    Abstract: A system evaluates image quality in an image generating system. The system includes a test pattern generator configured to generate an image with an image generating system, an image capture device configured to generate a digital signal corresponding to the generated test pattern, an image evaluator configured to process the digital signal to detect and correct anomalies detected in the generated test pattern, a plurality of calibration tools, each calibration tool being comprised of at least one test pattern, at least one set of detection criteria, and at least one set of anomaly correction parameters, and a controller configured to select the calibration tools for operation of the test pattern generator and the image evaluator in accordance with a predetermined sequence that attenuates changes arising from application of correction parameters of one calibration tool upon a later selected calibration tool.
    Type: Application
    Filed: January 23, 2012
    Publication date: May 17, 2012
    Applicant: XEROX CORPORATION
    Inventors: Bhaskar T. Ramakrishnan, Andrew S. Yeh, Mary Lynne Morrow, Ernest I. Esplin, Pieter John Ganzer, John Albert Wright, Brent Edward Fleming
  • System and method for evaluating and correcting image quality in an image generating device
    Patent number: 8132885
    Abstract: A system evaluates image quality in an image generating system in a manner that accounts for the interaction of the calibration tools used to evaluate and correct image quality in the image generating system.
    Type: Grant
    Filed: March 10, 2009
    Date of Patent: March 13, 2012
    Assignee: Xerox Corporation
    Inventors: Bhaskar T. Ramakrishnan, Andrew S. Yeh, Mary Lynne Morrow, Ernest I. Esplin, Pieter John Ganzer, John Albert Wright, Brent Edward Fleming
  • System And Method For Evaluating And Correcting Image Quality In An Image Generating Device
    Publication number: 20100231635
    Abstract: A system evaluates image quality in an image generating system in a manner that accounts for the interaction of the calibration tools used to evaluate and correct image quality in the image generating system.
    Type: Application
    Filed: March 10, 2009
    Publication date: September 16, 2010
    Applicant: XEROX CORPORATION
    Inventors: Bhaskar T. Ramakrishnan, Andrew S. Yeh, Mary Lynne Morrow, Ernest I. Esplin, Pieter John Ganzer, John Albert Wright, Brent Edward Fleming