Patents by Inventor Zanyao Yan

Zanyao Yan 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 and apparatus for performing alignment for printing with a printhead
    Patent number: 7390073
    Abstract: A method of performing alignment for printing with a printhead includes bidirectionally printing a plurality of rows of alignment blocks, wherein a bidirectional offset of a plurality of bidirectional offsets is different for each row of the alignment blocks; optically measuring each row to obtain measurement data; determining a statistical data value for each row based on the measurement data; and applying a respective bidirectional offset of the plurality of bidirectional offsets corresponding to a row having the lowest statistical data value of the plurality of rows to align the printhead for printing with the printhead.
    Type: Grant
    Filed: July 29, 2005
    Date of Patent: June 24, 2008
    Assignee: Lexmark International, Inc.
    Inventors: Thomas A. Bailey, Michael A. Penrod, Zanyao Yan
  • Method and apparatus for performing alignment for printing with a printhead
    Publication number: 20070024660
    Abstract: A method of performing alignment for printing with a printhead includes bidirectionally printing a plurality of rows of alignment blocks, wherein a bidirectional offset of a plurality of bidirectional offsets is different for each row of the alignment blocks; optically measuring each row to obtain measurement data; determining a statistical data value for each row based on the measurement data; and applying a respective bidirectional offset of the plurality of bidirectional offsets corresponding to a row having the lowest statistical data value of the plurality of rows to align the printhead for printing with the printhead.
    Type: Application
    Filed: July 29, 2005
    Publication date: February 1, 2007
    Inventors: Thomas Bailey, Michael Penrod, Zanyao Yan