Patents by Inventor John A. Goodman

John A. Goodman 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).

  • Method, printer and printhead driver for printing using two printheads
    Patent number: 6857723
    Abstract: A first method obtains a printer having a single-printhead horizontal resolution of H dpi. Dots are printed using first and second printheads in the same print pass. The first printhead is enabled and the second printhead is non-enabled during a first portion of a carrier-movement distance equal to 1/H, and the second printhead is enabled and the first printhead is non-enabled during a second non-overlapping portion of such distance. A printer and a printhead driver for performing the first method are described. A second method obtains a printer having a single-printhead resolution of H horizontal dpi by V vertical dpi. First print data for the first printhead and second print data for the second printhead of H/2 horizontal dpi by V vertical dpi are obtained, are horizontally interlaced creating H horizontal dpi by V vertical dpi, and are printed using the first and second printheads in the same print pass.
    Type: Grant
    Filed: April 18, 2003
    Date of Patent: February 22, 2005
    Assignee: Lexmark International, Inc.
    Inventors: Bruce A. DeBoard, John A. Goodman, Tommy O. Lowe, Joseph W. Luciano, Bryan D. McKinley, Daniel S. Powell, Thomas J. Eade
  • Method, printer and printhead driver for printing using two printheads
    Publication number: 20040207686
    Abstract: A first method obtains a printer having a single-printhead horizontal resolution of H dpi. Dots are printed using first and second printheads in the same print pass. The first printhead is enabled and the second printhead is non-enabled during a first portion of a carrier-movement distance equal to 1/H, and the second printhead is enabled and the first printhead is non-enabled during a second non-overlapping portion of such distance. A printer and a printhead driver for performing the first method are described. A second method obtains a printer having a single-printhead resolution of H horizontal dpi by V vertical dpi. First print data for the first printhead and second print data for the second printhead of H/2 horizontal dpi by V vertical dpi are obtained, are horizontally interlaced creating H horizontal dpi by V vertical dpi, and are printed using the first and second printheads in the same print pass.
    Type: Application
    Filed: April 18, 2003
    Publication date: October 21, 2004
    Inventors: Bruce A. DeBoard, John A. Goodman, Tommy O. Lowe, Joseph W. Luciano, Bryan D. McKinley, Daniel S. Powell, Thomas J. Eade