Systems and methods for actively resisting touch-induced motion

• US 9,846,513 B2
• Filed: 10/10/2016
• Issued: 12/19/2017
• Est. Priority Date: 10/17/2014
• Status: Expired due to Fees

• Current Assignee: Elwha LLC (Intellectual Ventures LLC)
• Original Assignee: Elwha LLC (Intellectual Ventures LLC)
• Inventors: Hyde, Roderick A.
• Primary Examiner(s): Lee, Nicholas
• Assistant Examiner(s): STONE, ROBERT M
• Application Number:
  US15/289,612
• Publication Number:
  US 20170031526A1
• Time in Patent Office: 435 Days
• CPC Class Codes: G06F 2203/04105 Pressure sensors for measuring the pressure or force exerted on the touch surface without providing the touch position
• CPC Class Codes: G06F 2203/04106 Multi-sensing digitiser, i.e. digitiser using at least two different sensing technologies simultaneously or alternatively, e.g. for detecting pen and finger, for saving power or for improving position detection
• CPC Class Codes: G06F 3/041 Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
• CPC Class Codes: G06F 3/0418 for error correction or compensation, e.g. based on parallax, calibration or alignment

Abstract

A system for actively resisting touch-induced motion includes a touchscreen device and a processing circuit. The touchscreen device includes one or more sensors configured to generate motion data based on a motion of a touchscreen display of the touchscreen device, where the motion is induced by a touch on the display. The touchscreen device further includes one or more motion control devices configured to apply a force to the display. The processing circuit is configured to determine, based on the motion data, a force to counteract the motion. The processing circuit is further configured to cause the motion control devices to apply a force to the display to counteract the motion of the display.

Claims

1. A system for actively resisting touch-induced motion, comprising:

a touchscreen device, comprising;

a sensor configured to generate motion data associated with a motion of a touchscreen display of the touchscreen device, wherein the motion is induced by a touch on the display;

a motion control device configured to apply a force to the display; and

a processing circuit configured to;

determine, based on the motion data, a force to counteract the motion, wherein determining the force to counteract the motion includes determining a touch location on the display, determining a motion of the display at the touch location induced by a force of the touch on the display, and determining a ratio between the motion of the display at the touch location and the force of the touch on the display; and

cause the motion control device to apply the force to the display to counteract the motion of the display.

2. The system of claim 1, wherein the motion data comprises acceleration of at least a portion of the display.

3. The system of claim 1, wherein the motion data comprises displacement of at least a portion of the display.

4. The system of claim 1, wherein the motion data comprises the force of the touch on the display.

5. The system of claim 1, wherein the motion data comprises at least one of a torque value applied by the touch to at least a portion of the display, angular motion of the display relative to a mount of the display, and a strain value of at least a portion of the display.

6. The system of claim 1, wherein the processing circuit is further configured to determine the touch location on the display based on the motion data.

7. The system of claim 6, wherein the force is applied to an area that is different than the touch location.

8. The system of claim 6, wherein the force is applied to an area that is the same as the touch location.

9. The system of claim 1, wherein the motion control device includes a torque application device, and wherein the force comprises an applied torque, wherein the motion control device is coupled to a mount of the display, and wherein the torque is applied, by the motion control device, via the mount of the display.

10. The system of claim 1, wherein the sensor includes an accelerometer coupled to the display.

11. The system of claim 1, wherein counteracting the motion of the display comprises counteracting the motion at the touch location on the display.

12. The system of claim 1, wherein counteracting the motion of the display comprises counteracting the motion at an image location on the display.

13. The system of claim 1, wherein counteracting the motion of the display comprises counteracting oscillation.

14. The system of claim 1, wherein the force is applied after the touch.

15. The system of claim 1, wherein the force is applied during the touch.

16. The system of claim 1, further comprising a touch sensor configured to generate touch data based on the touch on the display, wherein the touch location is determined based on the touch data.

17. A display device for actively resisting touch-induced motion, comprising:

a touchscreen;

a sensor configured to generate motion data associated with motion of the touchscreen, wherein the motion is induced by a touch on the touchscreen;

a motion control device configured to apply a force to the touchscreen; and

a processing circuit configured to cause the motion control device to apply a force to the touchscreen to counteract the motion of the touchscreen, wherein the force is determined based on the motion data, and wherein determining the force is based on a ratio between the motion of the touchscreen at a touch location on the touchscreen and a force of the touch on the touchscreen.

18. The device of claim 17, wherein the sensor includes a strain sensor coupled to the touchscreen.

19. The device of claim 17, wherein the force to counteract the motion is determined based on a flexure of the touchscreen.

20. The device of claim 17, wherein the force to counteract the motion is determined based on a deformation of the touchscreen.

21. The device of claim 17, wherein the processing circuit is configured to determine the force to counteract the motion based on:

determining that a touch location corresponding to the touch and a location of the motion control device are different; and

responsive to determining that the touch location and the location of the motion control device are different, determining the motion data corresponding to the touch location.

22. The device of claim 21, wherein the touch location is determined based on data provided by an application running on the display device, and wherein the motion is determined based on a history of the user touching the touch location.

23. The device of claim 22, wherein the history of the user includes a history of the user using the application involving at least one previous touch location and a corresponding previous motion of the touchscreen.

24. The device of claim 21, wherein the touch location is determined based on data provided by an application running on the display system, and wherein the motion is determined based on a history of one or more users touching the touch location.

25. The device of claim 21, wherein the motion is determined based on an application requirement of an application running on the display device.

26. The device of claim 25, wherein the application requirement includes a request for user input.

27. A display system for actively resisting touch-induced motion, comprising:

a touchscreen; and

a processing circuit configured to;

receive motion data from a sensor configured to generate motion data indicative of a motion of the touchscreen induced by a touch on the touchscreen;

determine, based on the motion data, a force to counteract the motion wherein the force is determined based on a predicted linear motion of the touchscreen; and

cause a motion control device to apply the force to the touchscreen to counteract the motion of the touchscreen.

28. The system of claim 27, wherein the motion control device includes a torque application device, wherein the force comprises an applied torque.

29. The system of claim 28, wherein the torque application device is coupled to a mount of the touchscreen, and wherein the torque is applied via the mount.

30. The system of claim 27, wherein the motion control device is arranged beneath a surface of the touchscreen.

31. The system of claim 27, wherein the motion control device includes a tensioner configured to control a tension across the touchscreen.

32. The system of claim 27, wherein the display system includes at least one of a laptop, a desktop, a vehicle interface, a cell phone, and a tablet computer.