Appeal No. 1997-2896
Application 08/340,561
specifically programmed to either color the individual pixels
displayed or adjust the brightness of the individual pixels
displayed, in proportion to the amount of the pixel covered by
the inked line. See Appellants’ specification page 10, line
27 through page 11, line 14 (for color) and page 15, lines 5
through 15 (for brightness). In summary, we find that the
scope of the “means” in claim 1 is such that it includes the
structure of a microprocessor programmed to perform the
specific anti-aliasing algorithms disclosed in the Appellants’
specification.
We note that independent claim 18 contains limitations
which have similar scope to those limitations of claim 1
addressed above. Specifically, claim 18 includes “means for
producing in response to stylus movements across the surface
of the digitizing tablet an electrical signal indicative of
the location of the stylus at a given time” and “means for
generating on the display an anti-aliased visual display of
the path.” Accordingly, we find that the scope of claim 18
includes the structure of a microprocessor programmed to
perform the specific anti-aliasing algorithms disclosed in
Appellants’ specification.
10
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