Navigation system

• US 20010037177A1
• Filed: 04/26/2001
• Published: 11/01/2001
• Est. Priority Date: 04/28/2000
• Status: Active Grant

• Current Assignee: PIP Holdings Kabushiki Kaisha
• Original Assignee: Increment P Corporation (Pioneer Corporation), Pioneer Corporation
• Inventors: Nishida, Sosuke, Kazama, Masato
• Granted Patent: US 6,591,190 B2
• Time in Patent Office: Days
• US Class Current: 701/211
• CPC Class Codes: G01C 21/3638 including 3D objects and buildings three dimensional [3D] modelling, e.g. data description of 3D objects G06T17/00; geographic models G06T17/05
• CPC Class Codes: G01C 21/3644 Landmark guidance, e.g. using POIs or conspicuous other objects
• CPC Class Codes: G08G 1/0969 having a display in the form of a map

Abstract

A navigation system for displaying guidance in accordance with map data is provided. The navigation system includes a landmark displaying device for displaying structures corresponding to the map data as landmarks. The landmark displaying device sets reference positions in the landmarks and determines the location and direction of a landmark so that it would face to a road nearby.

Claims

1. A navigation system for displaying guidance in accordance with map data, the system comprising;

a landmark displaying device for displaying structures corresponding to the map data as landmarks,

wherein the landmark displaying device sets reference positions in the landmarks and determines the location and direction of a landmark so that it would face to a road nearby.

2. The navigation system according to

claim 1

, wherein the landmark displaying device selects a road closest to the landmark when multiple roads exist in areas near to the landmark.

3. The navigation system according to

claim 1

, wherein the landmark displaying device sets the priority in accordance with the types of the roads and selects a road with the highest priority when multiple roads exist in areas near to the landmark.

4. The navigation system according to

claim 1

, wherein the landmark includes three-dimensional landmarks that three-dimensionally represent structures corresponding to the map data.

5. The navigation system according to

claim 2

, wherein the landmark includes three-dimensional landmarks that three-dimensionally represent structures corresponding to the map data.

6. The navigation system according to

claim 3

, wherein the landmark includes three-dimensional landmarks that three-dimensionally represent structures corresponding to the map data.

7. The navigation system according to

claim 4

, the landmark displaying device replaces a three-dimensional landmark with a plain landmark when sufficient room to display the three-dimensional landmark cannot be ensured.

8. The navigation system according to

claim 5

, the landmark displaying device replaces a three-dimensional landmark with a plain landmark when sufficient room to display the three-dimensional landmark cannot be ensured.

9. The navigation system according to

claim 6

, the landmark displaying device replaces a three-dimensional landmark with a plain landmark when sufficient room to display the three-dimensional landmark cannot be ensured.