Computerized navigation system
First Claim
1. A method of providing route guidance information from a central base unit to a mobile unit in response to a request from the mobile unit, the method comprising the steps of:
- formatting a query at the mobile unit, the query including the request;
communicating the query directly from the mobile unit to the base unit;
calculating the route guidance information at the base unit in response to the query;
formatting a response to the query at the base unit, the response including the route guidance information and;
information indicative of a graphical representation of an intersection to be traversed, said representation including vectors defining streets and respective angles with respect to the intersection; and
street sign information located at said intersection; and
communicating the response from the base unit to the mobile unit, said communicating comprising a display.
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Accused Products
Abstract
The invention provides a method and system for providing route guidance information from a base unit to a remote unit in response to a request from the remote unit. The remote unit may be a mobile unit or a fixed unit. A query is formatted at the remote unit, the query including the request, and communicated from the remote unit to the base unit. The requested route guidance information is calculated at the base unit in response to the query, using a database located at the base unit. A response to the query is formatted at the base unit, the response including the route guidance information. The response is communicated from the base unit to the remote unit for display.
703 Citations
56 Claims
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1. A method of providing route guidance information from a central base unit to a mobile unit in response to a request from the mobile unit, the method comprising the steps of:
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formatting a query at the mobile unit, the query including the request; communicating the query directly from the mobile unit to the base unit; calculating the route guidance information at the base unit in response to the query; formatting a response to the query at the base unit, the response including the route guidance information and;
information indicative of a graphical representation of an intersection to be traversed, said representation including vectors defining streets and respective angles with respect to the intersection; and
street sign information located at said intersection; andcommunicating the response from the base unit to the mobile unit, said communicating comprising a display. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 56)
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28. A system for communicating routing information between a base unit and a mobile unit, the system comprising:
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an input device at the mobile unit for providing an origin and a destination; a processor of the base unit for calculating a route between the origin and the destination, said route including a plurality of intersections to be traversed and the data generated by said processor defining said route; and communication means for communicating the origin and the destination from the mobile unit to the base unit and for communicating the route and;
information indicative of a graphical representation of an intersection to be traversed, said representation including vectors defining streets and respective angles with respect to the intersection; and
street sign information located at said intersection from the base unit to the mobile unit. - View Dependent Claims (29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50)
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51. A method of providing routing information to a mobile unit, the method comprising the steps of:
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providing an origin and a destination from the mobile unit to a base unit, the base unit located remotely from the mobile unit; calculating at the base unit a route to be traversed between the origin and the destination, the route including a plurality of intersections to be traversed, data generated by said step of calculating the route and information representing a selected plurality of intersections; and providing the data and;
information indicative of a graphical representation of an intersection to be traversed, said representation including vectors defining streets and respective angles with respect to the intersection; and
street sign to the mobile unit.
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52. A system for providing route guidance information to a remote location from a central location, the system comprising:
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a mobile unit including an input for providing at least a route destination and an output for providing an indication of the route guidance information; a transmitter at the mobile unit for transmitting destination data and origin data from the mobile unit, the destination data being indicative of the route destination and the origin data being indicative of a route origin; a base unit at the central location, a receiver of the base unit for receiving the destination data and the origin data from the transmitter, a processor of said base unit coupled with the receiver for calculating data defining a route to the route destination from a route origin responsive to receiving the destination data and the origin data, the transmitter of the base unit coupled to the processor and the transmitter for transmitting routing data indicative of the route; and a receiver at the mobile unit for receiving the routing data and;
information indicative of a graphical representation of an intersection to be traversed, said representation including vectors defining streets and respective angles with respect to the intersection; and
street sign information located at said intersection from the transmitter of said base unit, said transmitter being coupled with the output means for providing the route guidance information to the output means responsive to the routing data. - View Dependent Claims (53, 54, 55)
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Specification