METHOD FOR OPERATING NAVIGATION FRAME, NAVIGATION APPARATUS AND RECORDING MEDIUM

• US 20110022307A1
• Filed: 07/26/2010
• Published: 01/27/2011
• Est. Priority Date: 07/27/2009
• Status: Abandoned Application

• Current Assignee: HTC Corporation
• Original Assignee: HTC Corporation
• Inventors: Lee, Yu-Cheng
• Application Number:
  US12/843,859
• Publication Number:
  US 20110022307A1
• Time in Patent Office: Days
• US Class Current: 701/202
• CPC Class Codes: G01C 21/3664 Details of the user input interface, e.g. buttons, knobs or sliders, including those provided on a touch screen; remote controllers; input using gestures
• CPC Class Codes: G06F 3/0482 Interaction with lists of selectable items, e.g. menus
• CPC Class Codes: G06F 3/04883 for inputting data by handwriting, e.g. gesture or text

Abstract

A method for operating a navigation apparatus, a navigation apparatus, and a recording medium are provided. In the method, a navigation frame is displayed on a touch screen when a navigation mode is entered. The sensitivity of the touch screen is adjusted from an original sensitivity to a preset sensitivity to detect an object appeared in front of the touch screen, in which the preset sensitivity is higher than the original sensitivity. When the touch screen detects the object, a window is operated according to a moving direction of the object relative to the touch screen.

Claims

1. A method for operating a navigation apparatus, suitable for a mobile device having a touch screen, the method comprising:

entering a navigation mode;

displaying a navigation frame on the touch screen;

adjusting a sensitivity of the touch screen to a preset sensitivity to detect an object in front of the touch screen, wherein the preset sensitivity is higher than an original sensitivity of the touch screen; and

operating a window according to a moving direction of the object relative to the touch screen when the touch screen detects the object.

2. The method of claim 1, wherein the step of adjusting the sensitivity of the touch screen to the preset sensitivity to detect the object in front of the touch screen comprises:

adjusting a signal-to-noise ratio (SNR) of the touch screen to enable the touch screen to detect the object in front of the touch screen.

3. The method of claim 1, wherein the step of detecting the object in front of the touch screen comprises:

detecting a capacitance of each of a plurality of touch points in the touch screen; and

determining whether there is an object in front of the touch screen according to a variance of the capacitance of each of the touch points.

4. The method of claim 3, wherein the step of determining whether there is the object in front of the touch screen according to the variance of the capacitance of each of the touch points comprises:

comparing the variance of the capacitance of each of the touch points within a unit of time with a variance threshold;

determining there is the object in front of the touch point of the touch screen if the variance of the touch point is larger than or equal to the variance threshold; and

determining there is no object in front of the touch point of the touch screen if the variance of the touch point is less than the variance threshold.

5. The method of claim 3, wherein the step of operating the window according to the moving direction of the object relative to the touch screen comprises:

calculating a distance between the object in front of the touch point of the touch screen and the touch point according to the capacitance of each of the touch points;

determining the moving direction of the object relative to touch screen according to a variance of the distance between the object and each of the touch points; and

opening the window on the navigation frame when the object comprises moving in a first direction perpendicular to the touch screen.

6. The method of claim 5, wherein after the step of opening the window on the navigation frame, the method further comprises:

continuing to detect the object and determine the moving direction of the object relative to the touch screen;

executing a first operation function of the window when the object is moved in the first direction perpendicular to the touch screen; and

executing a second operation function of the window when the object is moved in a second direction parallel to the touch screen.

7. The method of claim 1, wherein the window comprises a menu having at least one item and only a current item in the at least one item is displayed in the window.

8. A recording medium, recording program instructions for:

entering a navigation mode;

displaying a navigation frame on a touch screen of a mobile device;

adjusting a sensitivity of the touch screen to a preset sensitivity to detect an object in front of the touch screen, wherein the preset sensitivity is higher than an original sensitivity of the touch screen; and

operating a window according to a moving direction of the object relative to the touch screen when the touch screen detects the object.

9. A navigation apparatus, comprising:

a touch screen, having a sensitivity, for displaying a navigation frame;

a storage unit, for storing an electronic map; and

a processing unit, coupled to the touch screen and the storage unit, for displaying the navigation frame on the touch screen when a navigation mode is entered and adjusting the sensitivity of the touch screen to a preset sensitivity to detect an object in front of the touch screen, wherein the preset sensitivity is higher than an original sensitivity of the touch screen, and operating a window according to a moving direction of the object relative to the touch screen when the touch screen detects the object.

10. The navigation apparatus of claim 9, further comprising:

a positioning unit, for detecting a current location of the navigation device, wherein

the processing unit plans a navigation route by using the current location detected by the positioning unit as a start point and using the destination received by the touch screen as an end point, accesses the electronic map nearby the navigation route, and marks the navigation route on the electronic map so as to generate the navigation frame.

11. The navigation apparatus of claim 9, wherein the processing unit comprises adjusting a SNR of the touch screen to enable to the touch screen to detect the object in front of the touch screen.

12. The navigation apparatus of claim 9, wherein the processing unit comprises detecting a capacitance of each of a plurality of touch points in the touch screen and determining whether there is an object in front of the touch screen according to the capacitances of the touch points.

13. The navigation apparatus of claim 12, wherein the processing unit comprises comparing a variance of the capacitance of each of the touch points within a unit of time with a variance threshold, determining there is the object in front of the touch point of the touch screen if the variance of the touch point is larger than or equal to the variance threshold, and determining there is no object in front of the touch point of the touch screen if the variance of the touch point is less than the variance threshold.

14. The navigation apparatus of claim 12, wherein the processing unit comprises calculating a distance between the object in front of the touch point of the touch screen and the touch point according to the capacitance of each of the touch points, and opening the window on the navigation frame when the object comprises moving in a first direction perpendicular to the touch screen.

15. The navigation apparatus of claim 9, wherein the processing unit comprises opening the window on the navigation frame when determining the object comprises moving in a first direction perpendicular to the touch screen.

16. The navigation apparatus of claim 9, wherein the processing unit comprises executing a first operation function of the window when determining the object is moved in the first direction perpendicular to the touch screen, and executing a second operation function of the window when determining the object is moved in a second direction parallel to the touch screen.

17. The navigation apparatus of claim 16, wherein the window comprises a menu having at least one item;

and wherein the processing unit comprises executing a function of a current item in the menu or displaying a submenu of the current item when determining the object comprises moving in the first direction perpendicular to the touch screen, and switching the current item to a next item in the at least one item when determining the object comprises moving in the second direction parallel to the touch screen.

18. The navigation apparatus of claim 16, wherein the window comprises a menu comprising a return item and an exit item;

and wherein

the processing unit further comprises executing the return item to return to a previous menu of the menu; and

the processing unit further comprises executing the exit item to close the menu.

19. The navigation apparatus of claim 9, wherein after displaying the window, the processing unit further comprises accumulating a lasting time of displaying the window, comparing the lasting time with a time threshold, and closing the window when determining the lasting time exceeds the time threshold.

20. The navigation apparatus of claim 9, wherein the window comprises a menu having at least one item and only a current item in the at least one item is displayed in the window.