Adjusting a level of map detail displayed on a personal navigation device according to detected speed

• US 20110172917A1
• Filed: 01/11/2010
• Published: 07/14/2011
• Est. Priority Date: 01/11/2010
• Status: Active Grant

• Current Assignee: MiTAC International Corporation (MiTAC Holdings Corp.)
• Original Assignee: MiTAC International Corporation (MiTAC Holdings Corp.)
• Inventors: Muzina, Hrvoje, Rosser, Hayden James
• Granted Patent: US 8,386,173 B2
• Time in Patent Office: Days
• US Class Current: 701/212
• 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 method of adjusting a level of map detail for content displayed on a personal navigation device includes displaying a map of a current location of the personal navigation device on a display of the personal navigation device, calculating a current speed of the personal navigation device, adjusting a level of map detail according to the current speed of the personal navigation device to create an updated map, and displaying the updated map on the display of the personal navigation device.

Claims

1. A method of adjusting a level of map detail for content displayed on a personal navigation device, the method comprising:

displaying a map of a current location of the personal navigation device on a display of the personal navigation device;

calculating a current speed of the personal navigation device;

adjusting a level of map detail according to the current speed of the personal navigation device to create an updated map; and

displaying the updated map on the display of the personal navigation device.

2. The method of claim 1, wherein adjusting the level of map detail comprises:

comparing the current speed of the personal navigation device to one or more threshold levels;

selecting the level of map detail according to the comparison result; and

creating the updated map according to the selected level of map detail.

3. The method of claim 1, wherein as the speed of the personal navigation device increases, the level of map detail decreases.

4. The method of claim 1, wherein the level of map detail is shown in a full three-dimensional view when the current speed of the personal navigation device is less than a threshold value.

5. The method of claim 1, wherein the level of map detail is shown in a three-dimensional view showing outlines of buildings when the current speed of the personal navigation device is greater than a threshold value.

6. The method of claim 1, wherein the level of map detail is shown in a two-dimensional view when the current speed of the personal navigation device is greater than a threshold value.

7. The method of claim 1, wherein the level of map detail is shown in a two-dimensional view having reduced points of interest when the current speed of the personal navigation device is greater than a threshold value.

8. The method of claim 1, wherein the level of map detail is shown in a two-dimensional view having reduced color information when the current speed of the personal navigation device is greater than a threshold value.

9. The method of claim 1, wherein the level of map detail is shown in a two-dimensional view having reduced street information when the current speed of the personal navigation device is greater than a threshold value.

10. The method of claim 1 further comprising:

determining that the personal navigation device is placed in a cradle; and

adjusting the level of map detail to create the updated map having a lower level of map detail in response to determining that the personal navigation device is placed in the cradle.

11. A personal navigation device for adjusting a level of map detail for content displayed on a personal navigation device, the personal navigation device comprising:

a display for displaying a map of a current location of the personal navigation device;

a Global Positioning System (GPS) receiver for receiving the current location of the personal navigation device;

a memory for storing map data; and

a processor for calculating a current speed of the personal navigation device, adjusting a level of map detail according to the current speed of the personal navigation device to create an updated map, and controlling the display to display the updated map.

12. The personal navigation device of claim 11 further comprising a lookup table storing one or more speed thresholds and their corresponding levels of map detail, wherein the processor compares the current speed of the personal navigation device to one or more threshold levels, selects the level of map detail according to the comparison result, and creating the updated map according to the selected level of map detail.

13. The personal navigation device of claim 11, wherein as the speed of the personal navigation device increases, the level of map detail decreases.

14. The personal navigation device of claim 11, wherein the level of map detail is shown in a full three-dimensional view when the current speed of the personal navigation device is less than a threshold value.

15. The personal navigation device of claim 11, wherein the level of map detail is shown in a three-dimensional view showing outlines of buildings when the current speed of the personal navigation device is greater than a threshold value.

16. The personal navigation device of claim 11, wherein the level of map detail is shown in a two-dimensional view when the current speed of the personal navigation device is greater than a threshold value.

17. The personal navigation device of claim 11, wherein the level of map detail is shown in a two-dimensional view having reduced points of interest when the current speed of the personal navigation device is greater than a threshold value.

18. The personal navigation device of claim 11, wherein the level of map detail is shown in a two-dimensional view having reduced color information when the current speed of the personal navigation device is greater than a threshold value.

19. The personal navigation device of claim 11, wherein the level of map detail is shown in a two-dimensional view having reduced street information when the current speed of the personal navigation device is greater than a threshold value.

20. The personal navigation device of claim 11 further comprising a cradle port for connecting the personal navigation device to a docking cradle, wherein when the processor determines that the personal navigation device is placed in the cradle, the processor adjusts the level of map detail to create the updated map having a lower level of map detail.