Appeal No. 2002-0662 Page 5
Application No. 09/099,963
current position of an automotive vehicle to a given destination. Figure 1 of Ayanoglu
illustrates a block diagram of a navigation system 10 including a global positioning
system (GPS) receiver 26 for approximating the actual position of an automotive vehicle
70 (Figure 2). The navigation system 10 includes a microcontroller 22, and a cathode
ray tube (CRT) 20 coupled to the microcontroller 22 adapted to display images for
navigation of an automotive vehicle 70. An input source 25, preferably in the
configuration of a keyboard (not shown), is coupled to microcontroller 22 to enable
driver input into the system 10 (e.g., to enable a driver to designate a destination while
viewing the CRT 20 or input a desired traveling route). The system 10 further
preferably includes a conventional CD-ROM (compact disc read only memory) 24
coupled to the microcontroller 22. The CD-ROM 24 is adapted to store various road
map information classified in accordance with selected geographical regions.
The GPS receiver 26 is coupled to the microcontroller 22 and is adapted to
receive positioning signals, via antenna 27, from GPS satellites 29, 31 and 33 so as to
enable the approximation of the actual position of the automotive vehicle. Preferably,
the microcontroller 22 is coupled to both a direction sensor 28 for detecting the direction
of travel of the automotive vehicle, and a distance sensor 30 for measuring the traveling
distance of the automotive vehicle to assist in the approximation of the actual position
of the automotive vehicle.
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