Patent ID: 6360164
Filing Date: 2002-03-19
Classification: G01C

Abstract:
A navigation method comprising:receiving present location information and destination location information communicated over a telephone network from a telephone using dual-tone multi-frequency signals; using the received present location information and destination location information, and latitude and longitude information stored in a latitude/longitude memory section to automatically obtain latitude and longitude information regarding the present location and the destination location; automatically determining one or both of a distance and direction between the present location and the destination location based on the automatically obtained latitude and longitude information; automatically transmitting over the telephone network to the telephone a voice message reporting the automatically determined distance and/or direction; using the automatically determined distance and/or direction, and transportation facilities information stored in a transportation facilities memory section to determine a route from the present location to the destination location; transmitting to the telephone over the telephone network a voice message reporting the determined route; receiving route selection information communicated from the telephone using dual-tone multi-frequency signals; and transmitting over the telephone network to a taxi dispatch facility taxi dispatch information if the route selection information selects a route at least partly requiring taxi transportation, wherein the stored transportation facilities information comprises at least taxi information.