Navigation Device and Control Method Thereof

• US 20130035854A1
• Filed: 09/02/2011
• Published: 02/07/2013
• Est. Priority Date: 08/01/2011
• Status: Active Grant

• Current Assignee: MiTAC International Corporation (MiTAC Holdings Corp.), MiTAC Research (Shanghai) Ltd. (MiTAC Holdings Corp.)
• Original Assignee: MiTAC International Corporation (MiTAC Holdings Corp.), MiTAC Research (Shanghai) Ltd. (MiTAC Holdings Corp.)
• Inventors: Zhang, Hua-En
• Granted Patent: US 8,670,926 B2
• Time in Patent Office: Days
• US Class Current: 701/455
• CPC Class Codes: G01C 21/367 Details, e.g. road map scale, orientation, zooming, illumination, level of detail, scrolling of road map or positioning of current position marker

Abstract

A navigation device and a control method thereof are disclosed. The navigation device control method includes the steps of using a display unit to display at least one road map thereon; using a processing unit to determine whether a moving speed of the navigation device is larger than a speed threshold value; and if the moving speed of the navigation device is larger than the speed threshold value, the processing unit controlling the display unit to adjust a manner in which the road map is displayed on the display unit.

Claims

1. A navigation device, comprising:

a display unit for displaying at least one road map thereon; and

a processing unit being electrically connected to the display unit and determining whether a moving speed of the navigation device is larger than a speed threshold value;

wherein when it is determined the moving speed of the navigation device is larger than the speed threshold value, the processing unit controls the display unit to adjust a manner of displaying the road map.

2. The navigation device as claimed in claim 1, wherein the processing unit further adjusts the manner of displaying the road map based on a scale in which the road map is displayed on the display unit.

3. The navigation device as claimed in claim 1, wherein the processing unit further adjusts the manner of displaying the road map based on weighted values assigned to different roads shown in the road map.

4. The navigation device as claimed in claim 1, wherein the processing unit further adjusts the manner of displaying the road map based on a relative position-based spatial relation between the navigation device and roads shown in the road map.

5. The navigation device as claimed in claim 1, wherein the processing unit adjusts the manner of displaying the road map by fading some parts of the road map.

6. The navigation device as claimed in claim 5, wherein the processing unit fades some parts of the road map by showing those parts in phantom lines.

7. The navigation device as claimed in claim 5, wherein the processing unit fades some parts of the road map by showing those parts in a reduced level of brightness.

8. The navigation device as claimed in claim 5, wherein the processing unit fades some parts of the road map by showing those parts in a low contrast with the road map.

9. The navigation device as claimed in claim 5, wherein the processing unit fades some parts of the road map by showing those parts in a color gradient.

10. The navigation device as claimed in claim 1, wherein the processing unit adjusts the manner of displaying the road map by not displaying some parts of the road map.

11. A navigation device control method applicable to a navigation device, comprising the steps of:

using a display unit to display at least one road map thereon;

using a processing unit to determine whether a moving speed of the navigation device is larger than a speed threshold value; and

if the moving speed of the navigation device is larger than the speed threshold value, the processing unit controlling the display unit to adjust a manner in which the road map is displayed on the display unit.

12. The navigation device control method as claimed in claim 11, further comprising the following step:

the processing unit adjusting the manner of displaying the road map based on a scale in which the road map is displayed on the display unit.

13. The navigation device control method as claimed in claim 11, further comprising the following step:

the processing unit adjusting the manner of displaying the road map based on weighted values assigned to different roads shown in the road map.

14. The navigation device control method as claimed in claim 11, further comprising the following step:

the processing unit adjusting the manner of displaying the road map based on a relative position-base spatial relation between the navigation device and roads shown in the road map.

15. The navigation device control method as claimed in claim 11, wherein the processing unit adjusts the manner of displaying the road map by fading some parts of the road map.

16. The navigation device control method as claimed in claim 15, wherein the processing unit fades some parts of the road map by showing those parts in phantom lines.

17. The navigation device control method as claimed in claim 15, wherein the processing unit fades some parts of the road map by showing those parts in a reduced level of brightness.

18. The navigation device control method as claimed in claim 15, wherein the processing unit fades some parts of the road map by showing those parts in a low contrast with the road map.

19. The navigation device control method as claimed in claim 15, wherein the processing unit fades some parts of the road map by showing those parts in a color gradient.

20. The navigation device control method as claimed in claim 11, wherein the processing unit adjusts the manner of displaying the road map by not displaying some parts of the road map.