Appeal 2007-1572
Application 09/726,831
application running on the processor and/or requirements dictated by an
operating system running on the processor (Specification 7).
Crocker
4. Crocker teaches dynamically sizing a dedicated memory in a
shared memory buffer architecture (Abstract).
5. Crocker teaches an internal system memory 4 and an external
frame buffer 6, connected to the memory controller in chipset 3 via graphics
processor 5 and I/O bus 8 (Figs. 1, 2).
6. Crocker teaches a display (7) configured to display in more than
one display mode and coupled to the communications bus (Fig. 1).
7. Crocker teaches that it is well known that a separate frame
buffer can be coupled to the graphics controller (Fig. 1).
8. Crocker teaches that it is well known in prior art work stations
to eliminate the additional cost of a stand-alone frame buffer memory unit
by employing a portion of the physical system memory as the frame buffer
(col. 2, ll. 25-29).
9. Crocker teaches the desirability of providing graphical support
on the motherboard without requiring the expense of a corresponding add-in
dedicated memory (col. 2, ll. 46-52).
Nale
10. Nale teaches an address translator for a shared memory
computing system, including the ability to change display mode during
operation of an application according to its changing graphical needs. A
minimal amount of system memory is dedicated to the graphics controller,
5
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