Patents by Inventor Mathew W. Pierce

Mathew W. Pierce 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: 6394572
    Abstract: Printhead operating temperature control by sampling of the printhead's temperature in combination with an algorithm for estimating whether the printhead will exceed its maximum operating temperature during a scan across the media. If the estimation shows that the maximum operating temperature will be exceeded, the printing operation is halted (not aborted) at a convenient location in the scan. The unprinted data of that scan is preserved in memory, and the printhead is allowed to cool. The printhead is returned to the beginning of the scan during which the printing was halted, the scan is restarted, and the printhead is controlled to recommence firing ink drops at the location where the firing had been stopped in the previous scan.
    Type: Grant
    Filed: December 21, 1999
    Date of Patent: May 28, 2002
    Assignee: Hewlett-Packard Company
    Inventors: Mathew W. Pierce, James M. Brenner