Navigation system
First Claim
1. A personal navigation device comprising:
- a processor to perform, by software installed on the personal navigation device, route calculation and subsequent navigation functions;
a graphical display;
a memory;
map data stored in said memory;
a user-input device; and
a signal receiver to receive one or more wireless signals so that the processor can determine a present location of the personal navigation device in conjunction with a user input desired destination information,wherein said memory includes one or more fuel-related parameters, said route calculation function utilizes said one or more fuel related parameters to return fuel information representative of a fuel cost of a particular calculated route, repeating said route calculation function during navigation along the calculated route to return an updated fuel information representative of an updated fuel cost for a remaining portion of the calculated route, and subsequent to the selection of the calculated route, the graphical display displays map information and the fuel information together, and the map information and the updated fuel information together during the navigation along the calculated route.
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Accused Products
Abstract
A portable navigation device is set out for calculating fuel related parameters and returning related data to the user of the device. The related data may include fuel cost of a particular calculated route. Additional data may include particular displays of information including a theoretical calculated volumetric amount of fuel used by a vehicle in traveling along a calculated route before, during or after completion of travel. Other displayed data includes a theoretical calculated financial cost of fuel used by the vehicle in traveling along the calculated route before, during or after completion of travel. Still further displayed data may include an optimal calculated route chosen from many possible calculated routes, the optimization occurring on account of the relative fuel cost of each of the calculated routes.
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Citations
7 Claims
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1. A personal navigation device comprising:
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a processor to perform, by software installed on the personal navigation device, route calculation and subsequent navigation functions; a graphical display; a memory; map data stored in said memory; a user-input device; and a signal receiver to receive one or more wireless signals so that the processor can determine a present location of the personal navigation device in conjunction with a user input desired destination information, wherein said memory includes one or more fuel-related parameters, said route calculation function utilizes said one or more fuel related parameters to return fuel information representative of a fuel cost of a particular calculated route, repeating said route calculation function during navigation along the calculated route to return an updated fuel information representative of an updated fuel cost for a remaining portion of the calculated route, and subsequent to the selection of the calculated route, the graphical display displays map information and the fuel information together, and the map information and the updated fuel information together during the navigation along the calculated route. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification