INPUT PROCESSING METHOD AND DEVICE

• US 20170131832A1
• Filed: 11/04/2016
• Published: 05/11/2017
• Est. Priority Date: 11/06/2015
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: LEE, Sung Jun, LEE, Jae Min, KIM, Ki Won, KIM, Seung Jin, LEE, Jun Ik, KIM, Young Mok
• Granted Patent: US 10,268,308 B2
• Time in Patent Office: Days
• CPC Class Codes: G06F 3/0412 Digitisers structurally integrated in a display
• CPC Class Codes: G06F 3/04186 Touch location disambiguation
• CPC Class Codes: G06F 3/0488 using a touch-screen or digitiser, e.g. input of commands through traced gestures

Abstract

An electronic device is provided. The electronic device includes an input panel configured to periodically sense touch coordinates corresponding to a touch manipulation of a user; and a processor configured to periodically receive the touch coordinates from the input panel, calculate a variation of the touch coordinates based on the touch coordinates, change a reference value for determining movement of the touch manipulation based on the variation of the touch coordinates, and determine whether the touch manipulation moves, based on the reference value.

Claims

1. An electronic device, comprising:

an input panel configured to periodically sense touch coordinates corresponding to a touch manipulation of a user; and

a processor configured to periodically receive the touch coordinates from the input panel, calculate a variation of the touch coordinates based on the touch coordinates, change a reference value for determining movement of the touch manipulation based on the variation of the touch coordinates, and determine whether the touch manipulation moves, based on the reference value.

2. The electronic device of claim 1, wherein the processor is further configured to change the reference value to the variation of the touch coordinates if the variation of the touch coordinates is less than the reference value.

3. The electronic device of claim 1, wherein the processor is further configured to change the reference value in a pre-determined range, and

wherein the pre-determined range is proportional to a pixel density.

4. The electronic device of claim 1, wherein the processor is further configured to:

determine a touch event corresponding to the touch coordinates;

count a number of times that a touch move event in the touch event is received; and

change the reference value if the number of times that the touch move event in the touch event is received is greater than or equal to a pre-determined number of times.

5. The electronic device of claim 4, wherein the processor is further configured to initialize the number of times that the touch move event in the touch event is received, if a touch down event or a touch up event is received from the input panel or if the reference value is changed.

6. The electronic device of claim 1, wherein the processor is further configured to determine that the touch manipulation moves, if the variation of the touch coordinates is greater than or equal to the reference value, and

determine that the touch manipulation stopped, if the variation of the touch coordinates is less than the reference value.

7. The electronic device of claim 1, wherein the touch coordinates comprise an x-axis coordinate and a y-axis coordinate corresponding to the touch manipulation, and

wherein the processor is further configured to:

calculate a variation of each of the x-axis coordinate and the y-axis coordinate; and

determine that the touch manipulation moves, if at least one of the variation of the x-axis coordinate and the variation of the y-axis coordinate is greater than or equal to the reference value.

8. An electronic device, comprising:

a display;

an input panel configured to periodically sense touch coordinates corresponding to a touch manipulation of a user; and

a processor configured to periodically receive the touch coordinates from the input panel, calculate a variation of the touch coordinates based on the touch coordinates, determine resampling coordinates of the touch coordinates based on an update period of the display, to determine whether the touch manipulation moves, based on the variation of the touch coordinates, and perform a function corresponding to the determination whether the touch manipulation moves based on the resampling coordinates.

9. The electronic device of claim 8, wherein the processor is further configured to:

determine that the touch manipulation moves, if the variation of the touch coordinates is greater than or equal to a pre-determined reference value; and

determine that the touch manipulation stopped, if the variation of the touch coordinates is less than the pre-determined reference value.

10. The electronic device of claim 9, wherein the processor is further configured to change the pre-determined reference value by using the variation of the touch coordinates.

11. The electronic device of claim 8, wherein the touch coordinates comprise an x-axis coordinate and a y-axis coordinate corresponding to the touch manipulation, and

wherein the processor is further configured to:

calculate a variation of each of the x-axis coordinate and the y-axis coordinate; and

determine that the touch manipulation moves, if at least one of the variation of the x-axis coordinate and the variation of the y-axis coordinate is greater than or equal to a pre-determined reference value.

12. The electronic device of claim 8, wherein the touch coordinates comprise an x-axis coordinate and a y-axis coordinate corresponding to the touch manipulation, and

wherein the processor is further configured to:

calculate a variation of each of the x-axis coordinate and the y-axis coordinate and

determine resampling coordinates based on each of the x-axis coordinate and the y-axis coordinate.

13. An input processing method of an electronic device, the method comprising:

periodically sensing touch coordinates corresponding to a touch manipulation of a user;

calculating a variation of the touch coordinates based on the touch coordinates;

changing a reference value for determining movement of the touch manipulation by using the variation of the touch coordinates; and

determining whether the touch manipulation moves, based on the reference value.

14. The method of claim 13, wherein changing the reference value comprises:

changing the reference value to the variation of the touch coordinates if the variation of the touch coordinates is less than the reference value.

15. The method of claim 13, wherein the changing of the reference value comprises:

changing the reference value in a pre-determined range, and

wherein the pre-determined range is proportional to a pixel density.

16. The method of claim 13, further comprising:

determining a touch event corresponding to the touch coordinates,

wherein changing the reference value comprises;

counting a number of occurrences of a touch move event in the touch event, and

changing the reference value if the number of occurrences of the touch move event in the touch event is greater than or equal to a pre-determined number of times.

17. The method of claim 16, wherein changing the reference value further comprises:

initializing the number of occurrences of the touch move event in the touch event if a touch down event or a touch up event is received from an input panel or if the reference value is changed.

18. The method of claim 13, wherein determining whether the touch manipulation moves comprises:

determining that the touch manipulation moves, if the variation of the touch coordinates is greater than or equal to the reference value, and

determining that the touch manipulation stopped, if the variation of the touch coordinates is less than the reference value.

19. The method of claim 13, wherein the touch coordinates comprise an x-axis coordinate and a y-axis coordinate corresponding to the touch manipulation, and

wherein determining whether the touch manipulation moves comprises:

calculating a variation of each of the x-axis coordinate and the y-axis coordinate; and

determining that the touch manipulation moves, if at least one of the variation of the x-axis coordinate and the variation of the y-axis coordinate is greater than or equal to the reference value.

20. The method of claim 13, wherein the touch coordinates comprise an x-axis coordinate and a y-axis coordinate corresponding to the touch manipulation, and

wherein determining whether the touch manipulation moves comprises:

calculating a variation of each of the x-axis coordinate and the y-axis coordinate; and

determining resampling coordinates based on each of the x-axis coordinate and the y-axis coordinate.