METHOD AND APPARATUS UTILIZING BOTH STATISTICAL AND REAL TIME DATA FOR A VEHICLE NAVIGATION SYSTEM
First Claim
1. A method for determining a preferred route having a number of road links between an origin and a destination in a vehicular navigation system comprising the steps of:
- establishing a boundary between the origin and the destination,acquiring real time road link data, if available, for road links between the origin and said boundary,retrieving from a database statistical road link data for road links between said boundary and the destination,calculating the preferred route between the origin and the destination as a function of said real time road link data and said statistical road link data, anddisplaying the preferred route.
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Accused Products
Abstract
A method for determining a preferred route of road links between an origin and a destination in a vehicle navigation system. A boundary is established the origin and a destination and real time road link data is acquired for road links between the origin and the boundary. Similarly, road link data from a statistical database is retrieved from a road link database for road links between the boundary and the destination. The preferred route between the origin and the destination is then calculated as a function of both said real time road link data and statistical road link data and the calculated route is displayed on a screen.
25 Citations
18 Claims
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1. A method for determining a preferred route having a number of road links between an origin and a destination in a vehicular navigation system comprising the steps of:
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establishing a boundary between the origin and the destination, acquiring real time road link data, if available, for road links between the origin and said boundary, retrieving from a database statistical road link data for road links between said boundary and the destination, calculating the preferred route between the origin and the destination as a function of said real time road link data and said statistical road link data, and displaying the preferred route. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. Apparatus for determining a preferred route having a number of road links between an origin and a destination in a vehicular navigation system comprising:
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means for maintaining a statistical road link database, means for acquiring real time road link data, if available, for road links between the origin and said boundary, means for establishing a boundary between the origin and the destination, means for retrieving road link data between said boundary and the destination from said statistical road link database, a processor which calculates the preferred route between the origin and the destination as a function of said real time road link data and said statistical road link data, and means for displaying the preferred route. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification