Appeal No. 97-2583
Application 08/156,951
which is shared by the host system and the control processor.
Our reading of Longo reveals that the host system and the
control processor do not draw pictures on the same display at
the same time. In Longo’s column 12, lines 53-56, it is
stated:
There are two embodiments that allow both
systems to access the screen 38 without destroying
the previous screen contents once in operational
mode i.e., loopback and control processor console
emulation.
In the loopback mode, no drawing is done directly by the
control processor. See column 12, lines 59-64. Data for
display is passed from the control processor back to the host
system. Consequently, Longo states that in the loopback mode
there is no need to arbitrate between the two bodies of
software having access to the single piece of hardware.
(Column 12, lines 64-66). In the control processor emulation
mode, it appears that the control processor would direct
display data to the screen through the rendering processor
while the host is evidently halted, as has been argued by the
appellants. See column 13, line 62 to column 14, line 17, and
column 14, lines 58-64.
In short, the examiner has not set forth a sufficient
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