Navigation system
First Claim
1. 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.
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Accused Products
Abstract
A navigation system 1 is provided with a present spot locating section 50 for receiving location information on a present location sent by dual-tone multi-frequency signals from a terminal device 2 and searching through longitude/latitude data 62 therein to obtain longitudinal and latitudinal data on the present location; a destination spot locating section 51 for receiving location information on a destination location sent by dual-tone multi-frequency signals from the terminal device 2 and searching through longitude/latitude data 62 therein to obtain longitudinal and latitudinal data on the destination location; and a location computation section 52 for computing distance and/or direction between the present location and the destination location based on the longitudinal and latitudinal data on the present and destination locations, and providing a voice report of computed results to the terminal device 2. The navigation system 1 is further provided with an advertisement processing section 54 for transmitting commercial voice messages contained in the advertising message data.
99 Citations
3 Claims
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1. A navigation method comprising:
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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. - View Dependent Claims (2, 3)
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Specification