SYSTEM AND METHOD FOR REDUCING THE EFFECTS OF INADVERTENT TOUCH ON A TOUCH SCREEN CONTROLLER

• US 20140043241A1
• Filed: 08/07/2012
• Published: 02/13/2014
• Est. Priority Date: 08/07/2012
• Status: Active Grant

• Current Assignee: Honeywell International Inc.
• Original Assignee: Honeywell International Inc.
• Inventors: Sukumar, Sharath
• Granted Patent: US 9,423,871 B2
• Time in Patent Office: Days
• US Class Current: 345/173
• CPC Class Codes: B60K 2360/1438 Touch screens
• CPC Class Codes: B60K 2360/146 Instrument input by gesture
• CPC Class Codes: B60K 2360/199 for avoiding maloperation
• CPC Class Codes: B60K 2360/21 using cameras
• CPC Class Codes: B60K 2370/199 for avoiding maloperation
• CPC Class Codes: B60K 2370/21 using cameras
• CPC Class Codes: B60K 35/10 Input arrangements, i.e. from user to vehicle, associated with vehicle functions or specially adapted therefor
• CPC Class Codes: B60K 35/29 Instruments characterised by the way in which information is handled, e.g. showing information on plural displays or prioritising information according to driving conditions
• CPC Class Codes: G06F 2203/0381 Multimodal input, i.e. interface arrangements enabling the user to issue commands by simultaneous use of input devices of different nature, e.g. voice plus gesture on digitizer
• CPC Class Codes: G06F 3/013 Eye tracking input arrangements G06F3/015 takes precedence
• CPC Class Codes: G06F 3/04186 Touch location disambiguation
• CPC Class Codes: G06F 3/04842 Selection of displayed objects or displayed text elements G06F3/0482 takes precedence
• 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 system are provided for determining if a control button on a touch screen controller (TSC) was inadvertently touched. A user gaze point is determined using gaze detection apparatus, and the level of functional significance of the control button is identified. User gaze boundary values for the control button are then determined, and the gaze boundary values are altered to reflect the level of functional significance.

Claims

1. A method for determining if a control button on a touch screen controller (TSC) was inadvertently touched, comprising:

determining user gaze point;

identifying the level of functional significance of the control button;

determining user gaze boundary values for the control button; and

altering the gaze boundary values to reflect the level of functional significance.

2. A method according to claim 1 further comprising determining if gaze point is within the gaze boundary values.

3. A method according to claim 2 further comprising creating an enabling signal if the gaze point is within the gaze boundary.

4. A method according to claim 1 wherein the less the functional significance of the button is, the greater the gaze boundary values curve changes.

5. A method according to claim 4 wherein the control button may have a significance ranging from A to D with A being the greatest and D being the least and wherein the gaze boundary values of a control button are adjusted to reflect the significance of the control button.

6. A method according to claim 5 wherein the gaze boundary values of a B significance control button is increased by a first predetermined amount.

7. A method according to claim 6 wherein the gaze boundary values of a C significance control button is increased by a second predetermined amount that is greater than the first predetermined amount.

8. A method according to claim 7 wherein the gaze boundary values of a D significance control button is increased by a third predetermined amount that is greater than the second predetermined amount.

9. A method according to claim 8 wherein the first, second, and third predetermined amounts are substantially 10%, 20%, and 40% respectively.

10. A method according to claim 3 wherein user gaze boundaries comprise a stochastic area around a control button label on or proximate the control button.

11. A method according to claim 3 wherein user gaze boundaries comprise a geometric area within the control button.

12. A method according to claim 3 wherein user gaze boundaries are defined by a predetermined dwell time on a predetermined location of the control button.

13. A system for determining if the user has inadvertently touched a control button of a touch screen controller, comprising:

a gaze detection system that detects the user'"'"'s gaze point;

a control button identifier coupled to the gaze detecting system;

a button significance look-up table coupled to the control button identifier; and

a processor coupled to the gaze detection system, the control button identifier, and to the button significance look-up table, and configured to (1) determine a user'"'"'s gaze boundary values, (2) identify the level of significance of the control button; and

(3) alter the user'"'"'s gaze boundary values to reflect the level of functional significance of the button.

14. A method according to claim 13 wherein the processor is further configured to produce a stochastic boundary within the control button or associated therewith.

15. A system according to claim 13 wherein the processor is further configured to produce a geometric boundary area within the control button.

16. A system according to claim 13 wherein the processor is further configured to characterize user boundaries based on a predetermined dwell time.

17. A method for determining if a control button on a touch screen controller (TSC) was inadvertently touched, comprising:

determining user gaze point;

identifying the level of functional significance of the control button;

user gaze boundary values for the control button;

altering the gaze boundary values to reflect the level of functional significance;

determining if the gaze point is within the gaze boundary values; and

creating an enabling signal if the gaze point is within the gaze boundary.

18. A method according to claim 17 wherein the gaze boundary values of a B significance control button is increased by a first predetermined amount, the gaze boundary values of a C significance control button is increased by a second predetermined amount that is greater than the first predetermined amount, and the gaze boundary values of a D significance control button is increased by a third predetermined amount that is greater than the second predetermined amount.

19. A method according to claim 17 wherein the first, second, and third predetermined amounts are substantially 10%, 20%, and 40% respectively.

20. A method according to claim 19 wherein user gaze boundaries comprise one or more of a stochastic area around a control button label on or proximate the control button, a geometric area within the control button, and a predetermined dwell time on a predetermined location of the control button.