Automatic map zoom-level adaptation

• US 7,995,079 B2
• Filed: 04/16/2007
• Issued: 08/09/2011
• Est. Priority Date: 04/16/2007
• Status: Active Grant

• Current Assignee: Malikie Innovations Limited (Key Patent Innovations Limited)
• Original Assignee: Blackberry Limited
• Inventors: Klassen, Gerhard, Bells, Matthew
• Primary Examiner(s): Wang; Andrew
• Assistant Examiner(s): Chu; David H
• Application Number:
  US11/735,524
• Publication Number:
  US 20080253757A1
• Time in Patent Office: 1,576 Days
• Field of Search: None
• US Class Current: 345/660
• CPC Class Codes: G03B 17/00 Details of cameras or camera bodies; Accessories therefor lens hoods or caps G03B11/04

Abstract

A method is provided for dynamically determining a zoom-level to display to a user of a mapping application executing on a mobile device. The method comprises the following steps. The zoom-level is determined in accordance with at least one predefined parameter. The at least one predefined parameter is monitored for detecting a change. A new zoom-level corresponding with the detected change is determined. Lastly, the zoom-level of the mapping application is changed to the new zoom-level. A mobile device and computer-readable medium configured to implement the method are also provided.

Claims

1. A method of dynamically determining a zoom-level to display a mapping application executing on a mobile device, the method comprising:

determining the zoom-level in accordance with a plurality of predefined parameters;

monitoring the plurality of predefined parameters for detecting a change;

determining respective new zoom-levels that corresponds with the detected change in the plurality of predefined parameters;

resolving conflicts, based at least on an external factor comprising pairing/unpairing the mobile device with a car kit, between the plurality of predefined parameters corresponding with the respective zoom levels; and

changing the zoom-level of the mapping application to a mediated zoom-level.

2. The method of claim 1, wherein the conflicts are resolved by assigning priority levels to each of the plurality of predefined parameters.

3. The method of claim 1, wherein the conflicts are resolved by compromising between the zoom-levels of each of the plurality of predefined parameters.

4. The method of claim 1, further comprising determining the position of the mobile device.

5. The method of claim 4, wherein one of the predefined parameters is an area boundary and the change is detected when the position of the mobile device crosses the area boundary.

6. The method of claim 4, wherein one of the predefined parameters is a location of the mobile device, the location having a predefined class, and the change is detected when the position of the mobile device results in a change of the location class.

7. The method of claim 4, wherein one of the predefined parameters is a point of interest within an area about the position of the mobile device, the point of interest having a predefined class, and the change is detected when a change in the point of interest within the area results in a change of the class.

8. The method of claim 1, wherein one of the predefined parameters is a parameter density and the change is detected when the parameter density increases above a predefined upper threshold or falls below a predefined lower threshold.

9. The method of claim 1 further comprising determining the speed of the mobile device.

10. The method of claim 9, wherein one of the predefined parameters is the speed of the mobile device and the change is detected when the speed increases above a predefined upper threshold or falls below a predefined lower threshold.

11. A mobile device configured to provide a mapping application, the mobile device comprising:

a memory including instructions for;

determining the zoom-level in accordance with a plurality of predefined parameters;

monitoring the plurality of predefined parameters for detecting a change;

determining respective new zoom-levels that correspond with the detected change in the plurality of predefined parameters;

resolving conflicts, based at least on an external factor comprising pairing/ unpairing the mobile device with a car kit, between the plurality of predefined parameters corresponding with the respective zoom levels; and

changing the zoom-level of the mapping application to a mediated zoom-level; and

a processor configured to execute the instructions on the device for dynamically determining a mediated zoom-level for display of the mapping application.

12. The mobile device of claim 11 further comprising a positioning device for determining a position of the mobile device.

13. The mobile device of claim 12, wherein the positioning device is a global navigation satellite system receiver.

14. The mobile device of claim 12 further comprising a speed module configured to determine the speed of the mobile device.

15. A computer readable memory comprising instructions which, when executed on a mobile device, cause the mobile device to dynamically determine a mediated zoom-level for display within a mapping application executing on the mobile device, the instructions causing the mobile device to:

determine the zoom-level in accordance with a plurality of predefined parameters;

monitor the plurality of predefined parameters for detecting a change;

determine respective new zoom-levels that correspond with the detected change in the plurality of predefined parameters;

resolve conflicts, based at least on an external factor comprising pairing/ unpairing the mobile device with a car kit, between the plurality of predefined parameters corresponding with the respective zoom levels; and

change the zoom-level of the mapping application to a mediated zoom-level.