Patents by Inventor Robert E Stevahn, Jr.

Robert E Stevahn, Jr. 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: 7576878
    Abstract: Systems, apparatus, and methods for enhancing management of raster image processing (RIP) resources are described. In one aspect, a printing environment includes a RIP engine and multiple RIP pipelines. The RIP engine is scheduled to perform RIP for a first time period for a first pipeline of the multiple RIP pipelines. Responsive to occurrence of a start time of the first time period, the RIP engine is automatically transferred to the first pipeline for RIP.
    Type: Grant
    Filed: April 3, 2003
    Date of Patent: August 18, 2009
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Robert D. Christiansen, Paul R. Wissenbach, Scott C. Clouthier, Brian E. Hoffmann, Robert E. Stevahn, Jr.
  • Patent number: 7298503
    Abstract: Various systems and methods for raster image processing employing partitioning of print jobs are described herein. In one representative embodiment, a method is provided that comprises the steps of determining a page count for a print job expressed in a page description language and specifying a number of partitions of the print job. The method also includes the steps of assigning each of the partitions of the print job to one of a number of raster image processing (RIP) engines for raster image processing, and, re-aggregating a number of raster image processed partitions from the RIP engines into a raster image processed output file. Each of the raster image processed partitions is generated by raster image processing a corresponding one of the partitions with a respective one of the RIP engines.
    Type: Grant
    Filed: December 17, 2002
    Date of Patent: November 20, 2007
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Robert D Christiansen, Paul R Wissenbach, Robert E Stevahn, Jr.