Patents by Inventor Anne Fitzpatrick

Anne Fitzpatrick 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: 7671877
    Abstract: A lateral position of a photoreceptor belt is detected by at least a first sensor and a second sensor, respectively located near a first imager and a second imager. The detected lateral positions of the photoreceptor belt by the first sensor is compared to the detected lateral position of the photoreceptor belt by the second sensor. Based on this compared difference, a correction is applied to the position of the second imager relative to the photoreceptor belt. To apply the correction, the location of the start of scan (SOS) of the respective imagers is moved.
    Type: Grant
    Filed: October 17, 2006
    Date of Patent: March 2, 2010
    Assignee: Xerox Corporation
    Inventors: Anne Fitzpatrick, Michael Martin, David Kerxhalli, Tom Baretsky
  • Publication number: 20080088691
    Abstract: A lateral position of a photoreceptor belt is detected by at least a first sensor and a second sensor, respectively located near a first imager and a second imager. The detected lateral positions of the photoreceptor belt by the first sensor is compared to the detected lateral position of the photoreceptor belt by the second sensor. Based on this compared difference, a correction is applied to the position of the second imager relative to the photoreceptor belt. To apply the correction, the location of the start of scan (SOS) of the respective imagers is moved.
    Type: Application
    Filed: October 17, 2006
    Publication date: April 17, 2008
    Applicant: XEROX CORPORATION
    Inventors: Anne FITZPATRICK, Michael MARTIN, David KERXHALLI, Tom BARETSKY
  • Publication number: 20070120938
    Abstract: Reflex writing is a group of algorithms developed to maintain color registration in xerographic systems using multiple imagers. Unlike conventional imaging, in which the individual color separations are imaged based on events in a time domain, in a reflex write implementation sequential color separations are written based on events in the spatial domain. Once the initial color separation is written, the distance that color separation travels is tracked until the color separation is under the next imaging station, where the next color separation is written properly registered with respect to the existing color separation. The imaging system includes a raster output scanner imager for the black station and a light emitting diode bar for the color station.
    Type: Application
    Filed: November 30, 2005
    Publication date: May 31, 2007
    Inventors: Anne Fitzpatrick, Michael Martin, James Stevens, Rosario Bracco, Carlos Alva, John Durbin