Printer driver software product with edge runlength encoder
First Claim
1. A printer driver software product containing machine readable instructions 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 line 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.
3 Assignments
0 Petitions
Accused Products
Abstract
A printer driver software product includes machine readable instructions for a computer to compress bi-level page description date. The computer, in accordance with the instructions, checks to determine if an edge of a black region in a line of the page is within a predetermined range of pixels from an edge of a black region in a previous line of pixels. If the edge falls within the predetermined range then a symbol is written indicating the presence of the edge and the offset from the referenced edge in the previous line. The end of each line of pixels is determined on the basis of a parameter indicating page width.
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Citations
7 Claims
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1. A printer driver software product containing machine readable instructions 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:
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instructions to determine if an edge of a black region in a first line 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. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification