MAP SCALE CHANGING METHOD AND APPARATUS FOR NAVIGATION SYSTEM
First Claim
1. A navigation system for guiding a subject from a start position to a destination position, the system comprising:
- a position detector configured to detect a current position of the subject;
a memory unit configured to store map data;
a display unit; and
a control unit configured to display a map on the display unit based on the map data, wherein the control unit is configured to adjust a scale of the map displayed on the display unit based on a current position of the subject.
1 Assignment
0 Petitions
Accused Products
Abstract
A map scale changing method and apparatus for navigation system capable of automatically changing a map scale when a travel route of a mobile object is searched and displayed on a display screen, whereby a map scale is changed based on a distance between a current position of the mobile object and a search start position of the travel route when the mobile object starts to travel to allow both the current position of the mobile object and a start position of the travel route to be displayed a display screen, and a map scale is changed based on a distance between the current position of the mobile object and a real destination in case the mobile object approaches a search termination position of the travel route to allow both the current position and the destination to be displayed on the display screen.
43 Citations
22 Claims
-
1. A navigation system for guiding a subject from a start position to a destination position, the system comprising:
-
a position detector configured to detect a current position of the subject;
a memory unit configured to store map data;
a display unit; and
a control unit configured to display a map on the display unit based on the map data, wherein the control unit is configured to adjust a scale of the map displayed on the display unit based on a current position of the subject. - View Dependent Claims (2, 3, 4, 5, 6)
-
-
7. A map scale changing method for a navigation system comprising:
-
searching for a travel route of a mobile object;
changing a map data that is used for guiding the travel route to a map scale data capable of displaying both a current position of the mobile object and a search start position on a display screen based on a distance between the current position of the mobile object and the search start position for starting the search for the travel route;
continuing to guide the travel of the mobile object based on a map scale data for guiding the travel route if the map data used for guiding the travel route is a map scale data pre-set for guiding the travel route. - View Dependent Claims (8, 9, 10, 11, 12)
-
-
13. A map scale changing method for a navigation system comprising:
-
searching for a travel route of a mobile object;
guiding travel of the mobile object along the searched travel route using a map scale data pre-set for guiding the travel route; and
changing the map data that is used for guiding the travel route to a map scale data capable of displaying both a current position and a destination of the mobile object on a display screen and guiding the mobile object to the destination if a distance between the mobile object and a search termination position for terminating the search is within a pre-set distance. - View Dependent Claims (14, 15)
-
-
16. A map scale changing method for a navigation system comprising:
-
searching for a travel route of a mobile object;
guiding the mobile object to travel along the searched travel route based on a pre-set map scale data for guiding the travel route; and
changing to a map scale data capable of displaying both a current position and a destination of the mobile object and guiding the mobile object to the destination, if the mobile object approaches the destination within a pre-set distance. - View Dependent Claims (17, 18)
-
-
19. A map scale changing apparatus for a navigation system comprising:
-
a GPS (Global Positioning System) receiver for receiving navigation messages;
a map data storage for storing a plurality of map scale data; and
a control unit for searching for a travel route of a mobile object, determining a current position of the mobile object based on the navigation messages received by the GPS receiver, changing a map data that is used for guiding the travel route to a map scale data capable of displaying a current position of the mobile object and a search start position on a display screen and guiding the searched travel route, and continuing to guide the travel of the mobile object based on the map scale data for guiding the travel route if the map data used for guiding the travel route is a map scale data pre-set for guiding the travel route. - View Dependent Claims (20, 21, 22)
-
Specification