Patents by Inventor Rob W. Robert

Rob W. Robert 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 for filling surface parts of an image with a surface pattern
    Patent number: 4887228
    Abstract: The surface parts of an image which is stored in the form of a bit-representation in a raster image memory may be filled with a surface pattern using the following steps: generating a bit-representation of the surface pattern defined uniformly over the entire image surface; generating a mask function, which gives a specific logic value to those raster points which are situated within the boundaries of the surface parts; generating a filling pattern by performing a logic operation on the bit-representation of the surface pattern and the mask function; and transferring the filling pattern to the raster image memory.
    Type: Grant
    Filed: June 8, 1987
    Date of Patent: December 12, 1989
    Assignee: Oce-Nederland B.V.
    Inventor: Rob W. Robert