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Printer driver software product with edge runlength encoder

  • US 7,193,743 B2
  • Filed: 12/08/2004
  • Issued: 03/20/2007
  • Est. Priority Date: 11/09/1998
  • Status: Expired due to Fees
First Claim
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1. A printer driver software product stored on a computer readable medium for providing instructions containing a machine readable program for a processor to compress a page layout having lines of black and white pixels representing black regions on a white background, said software product including:

  • instructions to determine if an edge of a black region in a first lie is within a predetermined range of pixels from an edge of a line of black pixels in a previous line; and

    instructions to determine the end of each of said lines on the basis of data indicating width of the page layout.

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