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Apparatus and method for manipulating scanned documents in a computer aided design system

DC
  • US RE40,384 E1
  • Filed: 01/30/2004
  • Issued: 06/17/2008
  • Est. Priority Date: 06/14/1989
  • Status: Expired due to Term
First Claim
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1. In an electronic data processing system, apparatus for manipulating a scanned document, comprising, in combination:

  • first means for electronically displaying a first image representing the scanned document, said first image being a raster image comprised of a plurality of discrete picture elements defining at least one graphic element having a first shape;

    second means for electronically displaying in response to user input commands, simultaneously with the display of said raster first image, a second image, said second image being a vector-based image comprised of a plurality of vectors having respective defined starting and ending points having predetermined positions relative to said picture elements of said raster first image and representing user-generated alterations to the first shape of said at least one graphic element, and said second image being displayed in a window having coordinates referenced to a vector origin, wherein said first image is maintained in registration with said second image using said coordinates; and

    merging means for merging said first and second images to provide an edited raster image wherein said at least one graphic element has a second shape differing from said first shape in accordance with at least one of said plurality of vectors displayed responsive to the user input commands.

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