Appeal No. 96-1200
Application 08/011,453
tessellation." This limitation does not define what is meant
by "graphical command signals," which leaves the
interpretation open. Appellants argue that "according to the
present invention, graphical commands are sent to the
separately controllable processor means of each basic display
unit" (Br8) and "[e]ach processor means in turn computes the
image to be displayed on the display screen associated
therewith in accordance with the received graphical commands
and conveys the computed image to the display screen" (Br8).
We see nothing in claim 1 that requires that "each processor
computes the image to be displayed," as argued. The command
signals are sent to the basic display units, not necessarily
the processor means portion of the basic display unit. The
basic display units generate a graphical image, but they do
not necessarily compute the graphical image. The
specification describes that a command, such as
"putpixel(r,c)," can be executed by a display driver
(specification, page 8, lines 32+) and so does not necessarily
require computation by the processor. Nevertheless, none of
references suggests the operation of the controlling processor
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