A communication navigation system is provided with: a communication navigation terminal (5) and a communication center apparatus (3) with a communication network (2) for connecting them. The communication navigation terminal is provided with a traveling locus recording device (36, 24) for preferentially...http://www.google.ca/patents/US6947837?utm_source=gb-gplus-sharePatent US6947837 - Communication navigation system and method, program storage device and computer data signal embodied in carrier wave
