Navigation device
First Claim
1. A navigation device comprising:
- map data storing means for storing map data, the map data containing information on a plurality of roads with entrances and exits, each of the roads with entrances and exits having fixed entrances and exits, the roads including at least one of an expressway and a toll road;
map display control means for displaying a map on a display unit based on the map data;
road specifying means for specifying a certain road from within the plurality of roads with entrances and exits;
position specifying means for specifying, based on an operation of a user, a certain position, the certain position being different from a current position of the navigation device; and
list display control means for displaying a list on the display unit, the list having the individual entrances or exits of the certain road sorted in order based on the certain position.
0 Assignments
0 Petitions
Accused Products
Abstract
Processing for showing entrances to expressways proceeds as follows. A user specifies an expressway and selects a display of entrance list. Then, all the entrances of the specified expressway, located within an L1 (km)-radius circle of a present position are extracted. Driving routes to the respective entrances are computed, and lengths of the respective driving routes are computed. Thereafter, the entrances are sorted in ascending order of the lengths of the respective driving routes, and an entrance list based on the result of this sorting is displayed on a display unit. In the entrance list, the entrances and lengths are listed in pairs in ascending order of the lengths. Further, after a format for storing the entrance is specified from among destination, way point, memory point, and point to be bypassed, processing is performed according to the specified format.
-
Citations
11 Claims
-
1. A navigation device comprising:
-
map data storing means for storing map data, the map data containing information on a plurality of roads with entrances and exits, each of the roads with entrances and exits having fixed entrances and exits, the roads including at least one of an expressway and a toll road;
map display control means for displaying a map on a display unit based on the map data;
road specifying means for specifying a certain road from within the plurality of roads with entrances and exits;
position specifying means for specifying, based on an operation of a user, a certain position, the certain position being different from a current position of the navigation device; and
list display control means for displaying a list on the display unit, the list having the individual entrances or exits of the certain road sorted in order based on the certain position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. A navigation device comprising:
-
a position detector that detects a current position;
a map data storing unit that stores map data, which contains information on a plurality of roads with branch paths including entrances and exits;
a map display control unit that displays a map on a display unit based on the map data;
a road specifying unit that specifies a certain road from within the plurality of roads;
a position specifying unit that specifies a certain position, the certain position being different from the current position; and
a list display control unit that displays a list on the display unit, the list having the individual branch paths of the certain road sorted in order based on the certain position.
-
-
11. A sorting and listing method used in a navigation device storing map data, which contains information on a plurality of roads with branch paths including entrances and exits,
the method comprising: -
specifying a certain road from within the plurality of roads;
specifying a certain position, which is different from a current position; and
displaying a list on a display unit, the list having the individual branch paths of the certain road sorted in order based on the certain position.
-
Specification