Navigation system for estimating and displaying candidate destinations
First Claim
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1. A navigation system comprising:
- a position information acquiring unit for capturing the present position and a direction of travel;
an information recording unit for storing a driving history;
a destination estimating unit for estimating a plurality of alternative candidate destinations from the present position and the direction of travel and from the driving history stored in the information recording unit;
a route computing unit for calculating routes to the plurality of alternative candidate destinations estimated by the destination estimating unit; and
an information display unit for causing the plurality of alternative candidate destinations estimated by the destination estimating unit and the routes to the plurality of alternative candidate destinations calculated by the route computing unit to be simultaneously displayed,wherein the destination estimating unit automatically narrows down the plurality of alternative candidate destinations as the position acquired by the position information acquiring unit changes, and the information display unit automatically narrows down the routes that are simultaneously displayed in accordance with the narrowing down of the plurality of alternative candidate destinations by the destination estimating unit.
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Abstract
A navigation system capable of enabling a user to use navigation functions such as route guidance without setting a destination. It includes an information recording unit for storing a driving history, a destination estimating unit for estimating a destination from the driving history stored in the information recording unit, a route computing unit for calculating a route to the destination estimated by the destination estimating unit, and an information display unit for causing the route calculated by the route computing unit to be displayed.
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Citations
10 Claims
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1. A navigation system comprising:
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a position information acquiring unit for capturing the present position and a direction of travel; an information recording unit for storing a driving history; a destination estimating unit for estimating a plurality of alternative candidate destinations from the present position and the direction of travel and from the driving history stored in the information recording unit; a route computing unit for calculating routes to the plurality of alternative candidate destinations estimated by the destination estimating unit; and an information display unit for causing the plurality of alternative candidate destinations estimated by the destination estimating unit and the routes to the plurality of alternative candidate destinations calculated by the route computing unit to be simultaneously displayed, wherein the destination estimating unit automatically narrows down the plurality of alternative candidate destinations as the position acquired by the position information acquiring unit changes, and the information display unit automatically narrows down the routes that are simultaneously displayed in accordance with the narrowing down of the plurality of alternative candidate destinations by the destination estimating unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method implemented in a navigation system, comprising:
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capturing the present position and a direction of travel; storing a driving history in an information recording device; utilizing a microcontroller to estimate a plurality of alternative candidate destinations from the present position and the direction of travel and from the driving history stored in the information recording unit, and calculate routes to the plurality of alternative candidate destinations estimated by the destination estimating unit; and causing the plurality of alternative candidate destinations estimated by the destination estimating unit and the routes to the plurality of alternative candidate destinations calculated by the route computing unit to be simultaneously displayed on an information display device, wherein the destination estimating unit automatically narrows down the plurality of alternative candidate destinations as the position acquired by the position information acquiring unit changes, and the information display unit automatically narrows down the routes that are simultaneously displayed in accordance with the narrowing down of the plurality of alternative candidate destinations by the destination estimating unit.
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Specification