Navigation device
First Claim
1. A navigation device comprising a map information storage means for storing map information including node information, line information and related information thereof, a present position detection means for detecting a present position of a moving body, a route searching means for searching a route from the present position to a guide point based on said map information, a voice guide message generation means for generating a voice guide message corresponding to the route searched by said route searching means, and a voice output means for outputting the voice guide message, wherein:
- said map information storage means stores a level of importance of each node and link as a part of said map information; and
said voice guide message generation means selects the nodes and links on the searched route based on said level of importance and generates the voice guide message corresponding to the selected nodes and links, wherein said voice guide message generation means selects said nodes and links on the searched route in such a manner that a level of importance of the selected nodes and links is less than or equal to a predetermined reference value and a number of the selected nodes and links is less than or equal to a predetermined reference number, and generates the voice guide message corresponding to the selected nodes and links.
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Accused Products
Abstract
A navigation device includes a map information storage means for storing map information such as nodes, links and the like, a present position detection means for detecting a present position of a moving body, a route searching means for searching a route from a present position to a guide point based on the map information, a voice guide message generation means for generating a voice guide message corresponding to the searched route, and a voice output means for outputting the voice guide message. The navigation device is adapted to store a level of importance of nodes and links as a part of said map information, and the voice guide message generation means selects links and nodes on the searched route based on the level of importance and generates a voice guide message corresponding to the selected nodes and links.
15 Citations
8 Claims
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1. A navigation device comprising a map information storage means for storing map information including node information, line information and related information thereof, a present position detection means for detecting a present position of a moving body, a route searching means for searching a route from the present position to a guide point based on said map information, a voice guide message generation means for generating a voice guide message corresponding to the route searched by said route searching means, and a voice output means for outputting the voice guide message, wherein:
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said map information storage means stores a level of importance of each node and link as a part of said map information; and
said voice guide message generation means selects the nodes and links on the searched route based on said level of importance and generates the voice guide message corresponding to the selected nodes and links, wherein said voice guide message generation means selects said nodes and links on the searched route in such a manner that a level of importance of the selected nodes and links is less than or equal to a predetermined reference value and a number of the selected nodes and links is less than or equal to a predetermined reference number, and generates the voice guide message corresponding to the selected nodes and links. - View Dependent Claims (2, 3, 4)
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5. A navigation device comprising,
a storage device having map information including node information, link information, and related information stored thereon; -
a position detector configured to detect a present position of a moving body;
a voice output device; and
a processor coupled to the storage device the position detector and the voice output device, the processor searching a route from the present position to a guide point based on the stored map information, the processor generating a voice guide message corresponding to the searched route, the processor configured to;
store a level of importance of each node and link as part of the map information;
select the nodes and links on the searched route based on the level of importance and generating the voice guide message corresponding to the selected nodes and links, select the nodes and links on the searched route such that the level of importance of the selected nodes and links is less than or equal to a predetermined referenced value and a number the selected nodes and links is less than or equal to a predetermined reference number; and
generate the voice guide message corresponding to the selected nodes and links. - View Dependent Claims (6, 7, 8)
select the nodes and links on the searched route in order of highest level of importance such that the voice playing time for the voice guide message associated with selected nodes and links is less than or equal to a predetermined reference value; and
generate the voice guide message corresponding to the selected nodes and links.
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Specification