Appeal No. 96-1106
Application 07/998,721
detour memories which are part of the detour memory
22 [column 3, lines 35 through 52].
The detour control aspect of Link's system allows a user to
designate detour areas which can be excluded from (1) all of
the routes calculated by the system, (2) some, but not all, of
the calculated routes, or (3) all of the routes calculated for
a specific driver (see, for example, column 2, lines 5 through
50). Link teaches that the detour area data inputted to the
system may be specified as "an intersection, a road segment,
an entire roadway or a geographical region" (column 8, lines
31 and 32).
Kirson discloses an apparatus which calculates and
displays multiple navigation routes for a vehicle. The
apparatus 10 includes a navigation computer 11 having a trip
memory 12, a road map data memory 13, direction, distance and
positions sensors 14, data input devices 15 and 16, an output
speaker 17 and an output CRT display 18. As described by
Kirson,
the vehicle operator will enter into the navigation
computer data concerning a desired destination. The
computer already knows the present vehicle location
due to the sensors 14 and is aware of what roads
-4-
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Last modified: November 3, 2007