Appeal No. 97-2583
Application 08/156,951
display device drivers for different graphical user interfaces
and a single virtual video display device driver to which the
separate video display device drivers are coupled. (Answer at
3). In that connection, the examiner relies on Longo for
those features of the appellants’ claimed invention.
According to the examiner, either element 202 in Longo’s
Figure 5 is a display device driver, one for each graphic user
interface seeking access to a common display, or the
“rendering processor” 36 in Longo’s Figure 6 is such a display
device
driver, one for each graphic user interface. (Answer at 3).
We disagree with both positions of the examiner.
Element 202 illustrated in Figure 5 designates merely
respective portions in the host subsystem and the control
processor 13 which receive data from each other and can in no
reasonable manner be considered as a display device driver.
As is described in column 12, lines 45-48 of Longo, element
202 is merely a protocol layer in the respective associated
processor, that receives communications from the transport
layer 61. The transport layer is an interface that sends data
5
Page: Previous 1 2 3 4 5 6 7 8 9 10 11 Next
Last modified: November 3, 2007