Appeal No. 2000-0766
Application No. 08/825,259
segment runs between x=1.5 and x=5.5, based on these two endpoints, the major
coordinate lines will be at x=2, x=3, x=4 and x=5. The identification is based on
identifying the integer values of the major coordinates between the endpoints No slope
is previously calculated or used in any way to obtain these major coordinate lines
crossing the line segment. No values of the minor coordinate axis (in this case, the y-
axis values) are employed in any manner to obtain the major coordinate lines crossing
the line segment. Our decision herein is based on this interpretation, a reasonable
interpretation urged by appellant.
Since Foley’s line segment display relies on the slope of the line segment (e.g.,
see page 73, paragraph 3.2.1) in order to find the next major coordinate value, by
definition, this depends on minor axis coordinates since the slope is the difference
between two minor axis coordinates divided by the difference between two major axis
coordinates. Since Foley bases identification of major coordinate lines, at least in part,
on minor axis coordinates, Foley does not meet, nor make obvious, the instant claimed
subject matter.
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