METHOD AND APPARATUS FOR COLLECTING TOUCH EVENT OF TERMINAL

• US 20110205174A1
• Filed: 02/18/2011
• Published: 08/25/2011
• Est. Priority Date: 02/19/2010
• Status: Abandoned Application

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: OH, Jun Suk
• Application Number:
  US13/030,251
• Publication Number:
  US 20110205174A1
• Time in Patent Office: Days
• US Class Current: 345/173
• CPC Class Codes: G06F 3/0416 Control or interface arrangements specially adapted for digitisers
• CPC Class Codes: G06F 3/04886 by partitioning the display area of the touch-screen or the surface of the digitising tablet into independently controllable areas, e.g. virtual keyboards or menus

Abstract

A method and apparatus for collecting a touch event of a terminal are provided. In the method, a touch panel is activated. An interrupt index is checked according to a given period of time, the interrupt index indicating at least one of a change in a coordinate or a change in a state of the touch event generated on the touch panel. Based on the interrupt index, it is determined whether to collect the touch event corresponding to the at least one of the change in the coordinate or the change in the state of the touch event.

Claims

1. A method of collecting a touch event of a terminal, the method comprising:

activating a touch panel;

checking an interrupt index according to a given period of time, the interrupt index indicating at least one of a change in a coordinate and a change in a state of the touch event generated on the touch panel; and

determining, based on the interrupt index, whether to collect the touch event corresponding to the at least one of the change in the coordinate and the change in the state of the touch event.

2. The method of claim 1, further comprising:

storing the touch event in a buffer.

3. The method of claim 2, wherein the determining of whether to collect the touch event comprises:

determining, when the interrupt index indicates a generation of the touch event, to collect the touch event stored in the buffer.

4. The method of claim 3, further comprising:

terminating the checking of the interrupt index when the collected touch event corresponds to a release signal that cancels a touch down event.

5. The method of claim 3, wherein the determining of whether to collect the touch event comprises:

determining, when the interrupt index does not indicate a generation of the touch event, not to check the buffer.

6. The method of claim 1, wherein the checking of the interrupt index comprises at least one of:

identifying one of a “

turn-on”

or “

turn-off”

state of an interrupt pin, which indicates a generation of the touch event; and

identifying one of a “

low”

or “

high”

state of an interrupt line, which indicates the generation of the touch event.

7. The method of claim 1, wherein the touch panel is operated according to a polling method, which checks whether the touch event is generated according to a given period.

8. An apparatus for collecting a touch event of a terminal, the apparatus comprising:

a touch panel for generating the touch event in response to a touch input;

an interrupt index for indicating at least one of a change of a coordinate and a change of a state of the touch event generated on the touch panel; and

a controller for collecting the touch event corresponding to the at least one of the change of the coordinate or the change of the state of the touch event based on the interrupt index.

9. The apparatus of claim 8, further comprising:

a buffer for storing the touch event.

10. The apparatus of claim 9, wherein the controller starts checking the interrupt index according to a given period when the touch input is generated on the touch panel, and checks the buffer and collects the touch event stored in the buffer when the interrupt index changes to a state indicating a generation of the touch event.

11. The apparatus of claim 10, wherein the controller terminates the checking of the interrupt index when the touch event collected through the checking of buffer includes a release signal indicating the discontinuance of the touch input.

12. The apparatus of claim 11, wherein the controller checks the interrupt index according to the given period when the touch input is generated on the touch panel, and skips checking the buffer when the interrupt index is changed to a state not indicating the generation of the touch event.

13. The apparatus of claim 8, wherein the interrupt index comprises at least one of:

an interrupt pin having a “

turn-on”

state in response to the generation of the touch event and a “

turn-off”

state when the touch event is not generated; and

an interrupt line having a “

low”

state in response to the generation of the touch event and a “

high”

state when the touch event is not generated.

14. The apparatus of claim 8, wherein the touch panel is operated according to a polling method, which determines whether the touch event is generated according to a given period.

15. A method of processing input on a touch panel of a mobile terminal, the method comprising:

periodically checking an interrupt index indicating a generation of a touch event on the touch panel, the touch event indicating at least one of a change in a coordinate on the touch panel of the touch event and a change in state of the touch event; and

determining, based on the content of the interrupt index, whether to collect the touch event.

16. The method of claim 15, further comprising:

storing the touch event in a buffer.

17. The method of claim 16, further comprising:

when the interrupt index indicates generation of the touch event, collecting the touch event stored in the buffer.

18. The method of claim 17, further comprising:

terminating the checking of the interrupt index when the collected touch event corresponds to a release signal in which a user stops touching the touch panel.

19. The method of claim 17, wherein the buffer is not checked while the interrupt index does not indicate generation of a touch event.