TOUCH SENSOR NAVIGATION

• US 20130342581A1
• Filed: 06/21/2012
• Published: 12/26/2013
• Est. Priority Date: 06/21/2012
• Status: Active Grant

• Current Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Original Assignee: Sharp Laboratories of America Incorporated (Hon Hai Precision Industry Co., Ltd.)
• Inventors: Gibbs, Benjamin K., Hough, William Phillip
• Granted Patent: US 9,146,666 B2
• Time in Patent Office: Days
• US Class Current: 345/661
• CPC Class Codes: G06F 3/0488 using a touch-screen or digitiser, e.g. input of commands through traced gestures
• CPC Class Codes: G09G 2340/0407 Resolution change, inclusive of the use of different resolutions for different screen areas
• CPC Class Codes: G09G 2340/045 Zooming at least part of an image, i.e. enlarging it or shrinking it
• CPC Class Codes: G09G 2370/027 Arrangements and methods specific for the display of internet documents
• CPC Class Codes: G09G 5/346 for systems having a bit-mapped display memory

Abstract

A method for image navigation on an electronic device is described. The method includes displaying an image. The method also includes detecting at least one contact with a touch sensor to obtain a first position. The method further includes obtaining an updated position corresponding to a contact movement. The method additionally includes determining a modified position by applying at least one scaling function based on the first position and the updated position. The method also includes moving the image based on the modified position.

Claims

1. A method for image navigation on an electronic device comprising:

displaying an image;

detecting at least one contact with a touch sensor to obtain a first position;

obtaining an updated position corresponding to a contact movement;

determining a modified position by applying at least one scaling function based on the first position and the updated position; and

moving the image based on the modified position.

2. The method of claim 1, wherein determining the modified position comprises:

determining a modified vertical distance by applying a first scaling function;

determining a modified horizontal distance by applying a second scaling function; and

determining the modified position based on the modified vertical distance and the modified horizontal distance.

3. The method of claim 2, wherein determining the modified vertical distance and the modified horizontal distance comprises:

determining a vertical distance and a horizontal distance;

determining the modified vertical distance by applying the first scaling function based on the vertical distance and the horizontal distance; and

determining the modified horizontal distance by applying the second scaling function based on the vertical distance and the horizontal distance.

4. The method of claim 2, wherein the second scaling function is a shifted inverse of the first scaling function.

5. The method of claim 1, wherein determining the modified position comprises:

determining a vertical distance and a horizontal distance based on the first position and the updated position;

determining a movement angle based on the vertical distance and the horizontal distance;

determining a vertical scaling factor based on a first scaling function and the movement angle;

determining a horizontal scaling factor based on a second scaling function and the movement angle;

determining a modified vertical distance based on the vertical scaling factor and the vertical distance;

determining a modified horizontal distance based on the horizontal scaling factor and the horizontal distance; and

determining the modified position based on the modified vertical distance and the modified horizontal distance.

6. The method of claim 1, further comprising determining at least one subsequent modified position based on a subsequent contact movement during continuous contact with the touch sensor.

7. The method of claim 6, wherein the at least one subsequent modified position is not constrained to a single direction.

8. The method of claim 1, wherein the at least one scaling function is at least one of a group consisting of a continuous function, a step function and a lookup table.

9. The method of claim 1, wherein the image is selected from a group consisting of a web page, an electronic document and a digital photograph.

10. The method of claim 1, wherein the touch sensor and a display comprise a touchscreen display.

11. The method of claim 1, wherein the modified position is based on a polar coordinate system or a Cartesian coordinate system.

12. An electronic device that is configured for image navigation, the electronic device comprising:

a display;

a touch sensor;

a processor;

memory in electronic communication with the processor;

instructions stored in the memory, the instructions being executable to;

detect at least one contact with the touch sensor to obtain a first position;

obtain an updated position corresponding to a contact movement;

determine a modified position by applying at least one scaling function based on the first position and the updated position; and

move the image based on the modified position.

13. The electronic device of claim 12, wherein determining the modified position comprises:

determining a modified vertical distance by applying a first scaling function;

determining a modified horizontal distance by applying a second scaling function; and

determining the modified position based on the modified vertical distance and the modified horizontal distance.

14. The electronic device of claim 13, wherein determining the modified vertical distance and the modified horizontal distance comprises:

determining a vertical distance and a horizontal distance;

determining the modified vertical distance by applying the first scaling function based on the vertical distance and the horizontal distance; and

determining the modified horizontal distance by applying the second scaling function based on the vertical distance and the horizontal distance.

15. The electronic device of claim 13, wherein the second scaling function is a shifted inverse of the first scaling function.

16. The electronic device of claim 12, wherein determining the modified position comprises:

determining a vertical distance and a horizontal distance based on the first position and the updated position;

determining a movement angle based on the vertical distance and the horizontal distance;

determining a vertical scaling factor based on a first scaling function and the movement angle;

determining a horizontal scaling factor based on a second scaling function and the movement angle;

determining a modified vertical distance based on the vertical scaling factor and the vertical distance;

determining a modified horizontal distance based on the horizontal scaling factor and the horizontal distance; and

wherein determining the modified position based on the modified vertical distance and the modified horizontal distance.

17. The electronic device of claim 12, wherein the instructions are further executable to determine at least one subsequent modified position based on a subsequent contact movement during continuous contact with the touch sensor.

18. The electronic device of claim 17, wherein the at least one subsequent modified position is not constrained to a single direction.

19. The electronic device of claim 12, wherein the at least one scaling function is at least one of a group consisting of a continuous function, a step function and a lookup table.

20. The electronic device of claim 12, wherein the image is selected from a group consisting of a web page, an electronic document and a digital photograph.

21. The electronic device of claim 12, wherein the touch sensor and the display comprise a touchscreen display.

22. The electronic device of claim 12, wherein the modified position is based on a Cartesian coordinate system or a polar coordinate system.