Navigation system and program
First Claim
1. A navigation system comprising:
- a guide unit including a display on which at least an image is displayed;
a map data acquisition unit that acquires map data;
a current position identification unit that identifies a current position of a vehicle;
a route obtaining unit that obtains a route to a destination; and
a guide control unit that uses the map data acquired by the map data acquisition unit to display on the display a map image which shows the current position identified by the current position identification unit and its surroundings, and that displays the route, which is recognized by the route obtaining unit, while superimposing the route on the map image, whereinthe guide control unit displays an arrow, which includesa base that indicates the current position identified by the current position identification unit,an arrowhead that points out a forward position separated by a predetermined distance along the route, anda segment leading to the arrowhead, while superimposing the arrow on the map image on which the route is superimposed,the arrowhead of the arrow being moved synchronously with a shift of the current position.
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Accused Products
Abstract
A map image showing a current position and its surroundings, a route, and an arrow are displayed and superimposed on one another. The arrow has a base indicating the current position and a length indicating a predetermined distance along the route. The arrow has the transparency adjusted to be half transparent to make the map image and route discernible. The arrow moves along with the current position as a vehicle travels on the route. When the route is rectilinear, the shape and length of the arrow do not change. When the route is turned left at an intersection, the arrowhead is turned left after reaching the intersection. Since the arrow is displayed along the route, the arrowhead is disposed on a road to which the vehicle is brought by a left turn made on a road on which the base is disposed.
41 Citations
23 Claims
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1. A navigation system comprising:
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a guide unit including a display on which at least an image is displayed; a map data acquisition unit that acquires map data; a current position identification unit that identifies a current position of a vehicle; a route obtaining unit that obtains a route to a destination; and a guide control unit that uses the map data acquired by the map data acquisition unit to display on the display a map image which shows the current position identified by the current position identification unit and its surroundings, and that displays the route, which is recognized by the route obtaining unit, while superimposing the route on the map image, wherein the guide control unit displays an arrow, which includes a base that indicates the current position identified by the current position identification unit, an arrowhead that points out a forward position separated by a predetermined distance along the route, and a segment leading to the arrowhead, while superimposing the arrow on the map image on which the route is superimposed, the arrowhead of the arrow being moved synchronously with a shift of the current position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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Specification
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- Resources
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Current AssigneeDENSO Corporation
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Original AssigneeDENSO Corporation
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InventorsShibata, Hirokazu, Watanabe, Yoshinori, Kawakami, Hidehiko, Taguchi, Kiyotaka, Abo, Masatoshi
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Primary Examiner(s)Hellner; Mark
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Application NumberUS11/396,712Publication NumberTime in Patent Office819 DaysField of Search701/209, 701/211, 701/212, 701/25US Class Current701/209CPC Class CodesG01C 21/367 Details, e.g. road map scal...
