Navigation apparatus
First Claim
1. A navigation apparatus in a vehicle for providing a travel guide in an area having no roads, the apparatus comprising:
- a position detection unit configured to detect a present position of the vehicle;
a heading direction detection unit configured to detect a heading direction of the vehicle;
a swept path creation unit configured to record, in a storage device, present positions detected by the position detection unit with predetermined distance intervals as swept path points such that individual detection orders, in which the present positions are detected, are identifiable, to thereby create swept path data indicative of a swept path of the vehicle; and
a travel guide unit configured to provide a travel guide for a route following the swept path forward or backward by outputting a relative orientation of one of the swept path points with respect to the heading direction at the present position using a sound.
1 Assignment
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Accused Products
Abstract
A navigation apparatus performs a travel guide in areas having no roads. Present positions of the vehicle are detected as swept path points with predetermined intervals. The detected swept path points are stored in a storage device such that the order of detection can be identifiable; thus, swept path data can be created. Thereafter, a present position of the vehicle is detected. A certain swept path point in the swept path data may be present within a predetermined range from the present position; further, the fifth swept path point in the forward direction may be present five swept path points ahead of the certain swept path point in the swept path data. In such a case, an orientation of the fifth swept path point is calculated relative to the heading direction. The calculated orientation of the fifth swept path point is indicated or announced using sounds.
11 Citations
9 Claims
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1. A navigation apparatus in a vehicle for providing a travel guide in an area having no roads, the apparatus comprising:
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a position detection unit configured to detect a present position of the vehicle; a heading direction detection unit configured to detect a heading direction of the vehicle; a swept path creation unit configured to record, in a storage device, present positions detected by the position detection unit with predetermined distance intervals as swept path points such that individual detection orders, in which the present positions are detected, are identifiable, to thereby create swept path data indicative of a swept path of the vehicle; and a travel guide unit configured to provide a travel guide for a route following the swept path forward or backward by outputting a relative orientation of one of the swept path points with respect to the heading direction at the present position using a sound. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification