Appeal No. 1997-2862
Application 08/069,052
using improper hindsight reasoning and that one of ordinary skill in the art would have to disregard the
teachings of Mauney as a whole, including fixing the standard input of the ARC/INFO program to
respond to only TTY data and using a digital emulator to convert the GUI and TTY data into TTY only
data stream that is connected to a standard input in favor of Appellant's controller. Appellant further
points out that figure 2 of Mauney teaches that step 46 uses a digital emulator to convert both the TTY
and GUI data into a TTY only data stream which is then sent to the fixed standard input of the
ARC/INFO program. Appellant argues that this avoids the problem of manually switching the
ARC/INFO program standard input but destroys the precedence of the TTY and GUI operations.
Appellant argues that the Appellant's controller makes the ARC/INFO program directly responsive to
both TTY and GUI data and thus maintains the precedence of the TTY and GUI operations.
Upon our careful review of Mauney, we find that Mauney teaches in column 4, lines 25-61, that
figure 1 shows an automated mapping system 10. In particular, Mauney teaches that a GPS receiver
12 receives radio signals from positioning satellites and derives from the signal time position and
operating condition information. The information from the GPS receiver 12 is sent to a GPS computer
14 through a GPS communication link 16. The GPS computer 14 processes the positional information
received from the GPS receiver 12 and sends the position information to a second computer GIS
computer 22. The GPS computer 14 communicates with the GIS computer 22 in a manner that
emulates a digitizing tablet. In this way, information can be entered into the GIS database without
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