Tactile interface system for manipulation of a touch screen

• US 9,952,762 B2
• Filed: 08/20/2012
• Issued: 04/24/2018
• Est. Priority Date: 08/20/2012
• Status: Active Grant

• Current Assignee: Wisconsin Alumni Research Foundation (University of Wisconsin System)
• Original Assignee: Wisconsin Alumni Research Foundation (University of Wisconsin System)
• Inventors: Jordan, J. Bern, Kelso, David P., Vanderheiden, Gregg C.
• Primary Examiner(s): Boddie, William
• Assistant Examiner(s): ENGLISH, ALECIA DIANE
• Application Number:
  US13/589,628
• Publication Number:
  US 20140049481A1
• Time in Patent Office: 2,073 Days
• Field of Search: None
• CPC Class Codes: G06F 3/0393 Accessories for touch pads or touch screens, e.g. mechanical guides added to touch screens for drawing straight lines, hard keys overlaying touch screens or touch pads
• 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

An interface system that allows for tactile manipulation of a touch screen for people with disabilities and which provides appropriate tactile marking for the action they wish to carry out and that may afford a sensation that a button is being pressed to a user, is provided. The system includes a touch screen and a tactile button assembly that extends over at least a portion of the touch screen. The tactile button assembly includes tactile buttons with tactile indicia that can be felt by a user. The tactile buttons are arranged with respect to the touch screen so that when a tactile button is pressed by a user, a contact end of the tactile button contacts a button on the touch screen to perform a predetermined task associated with pressing such button on the touch screen.

Claims

1. An interface system for allowing cross-disability manipulation of a computer touch screen that is operably connected to an electronic computer having a software program stored thereon, comprising:

a bezel

a computer touch screen housed in the bezel;

a tactile button assembly operatively connected to the bezel and including a panel and a tactile button having a support end operatively connected to panel, an intermediate portion extending from the panel over at least a portion of the computer touch screen and a contact end, the tactile button including tactile indicia that can be tactilely perceived by a user and being moveable between a non-actuated position wherein the contact end is spaced from and supported above the computer touch screen by the panel in a cantilevered arrangement and an actuated position wherein the contact end of the tactile button is relatively closer to the computer touch screen than when the tactile button is in the non-actuated position.

2. The interface system of claim 1 wherein the computer touch screen defines:

a virtual button that is graphically displayed on the computer touch screen so that the virtual button is arranged within a line-of-sight view of the user and can be touched by a finger of the user to perform a predetermined task of the software program; and

a hidden button that is defined upon the computer touch screen is arranged so that at least a portion of the hidden button underlies at least a portion of the tactile button so that the tactile button contact end contacts the hidden button when the tactile button is in the actuated position to perform a predetermined task of the software program.

3. The interface system of claim 1 wherein the support end of the tactile button is transversely spaced from computer touch screen so as to not overlie the computer touch screen.

4. The interface system of claim 1 wherein the support end of the tactile button is fixed with respect to the panel, and wherein an intermediate portion of the tactile button that extends between the support and contact ends thereof is configured to bend while the tactile button moves between the non-actuated and actuated positions.

5. The interface system of claim 1 wherein a pivot connection is defined between the support end of the tactile button and the panel so that the contact end of the tactile button is arranged to pivot about an axis defined at the pivot connection while the tactile button moves between the non-actuated and actuated positions.

6. The interface system of claim 5 wherein a spring is arranged with respect to the tactile button so as to bias the tactile button toward the non-actuated position.

7. The interface system of claim 1 wherein the panel that extends from the computer touch screen outwardly past the computer touch screen so that at least a portion of the panel does not overlie the computer touch screen.

8. The interface system of claim 7 wherein the panel defines an inwardly facing surface that is attached to the bezel.

9. The interface system of claim 7 wherein the panel includes a front portion that is proximate the computer touch screen, a back portion that is distal the computer touch screen, and an intermediate portion that extends between the front and back portions, the intermediate portion including a slot that extends therethrough and wherein a tactile button is arranged within the slot of the panel intermediate portion.

10. The interface system of claim 9 wherein the panel front portion includes a slot that is interconnected with the slot of the panel intermediate portion and wherein the contact end of the tactile button moves within the slot of the panel front portion during movement of the tactile button between the non-actuated and actuated positions.

11. The interface system of claim 1 wherein the tactile button assembly includes multiple tactile buttons and wherein multiple hidden buttons are defined on the computer touch screen at locations that respectively underlie the contact ends of the multiple tactile buttons so that each of the multiple hidden buttons can be contacted by a contact end of a respective one of the multiple tactile buttons when the tactile button is in the actuated position for performing a predetermined task of the software program.

12. The interface system of claim 11 wherein the panel of the tactile button assembly including at least one hook that engages the bezel so as to maintain alignment between the contact ends of the multiple tactile buttons and the hidden buttons.

13. The interface system of claim 1 wherein the contact end of the tactile button includes a resilient tip that is made from a resilient material that is attached to the contact end and that contacts the computer touch screen when the tactile button is in the actuated position.

14. The interface system of claim 13 wherein the resilient material is electrically conductive.

15. The interface system of claim 14 wherein the computer touch screen is a capacitive touch screen.

16. The interface system of claim 13 wherein the resilient material is at least one of molded into and molded over the contact end of the tactile button.

17. The interface system of claim 13 wherein the computer touch screen is an acoustic touch screen.

18. The interface system of claim 1 wherein the computer touch screen is one of an infrared touch screen, a resistive touch screen, an optical-based touch screen, and a camera-based touch screen.

19. An interface system for providing cross-disability use of a computer touch screen that is operably connected to an electronic computer having a software program stored thereon, comprising:

a bezel;

a computer touch screen housed in the bezel and defining a virtual button area having multiple virtual buttons that are graphically displayed on the computer touch screen so that each of the virtual buttons is within a line-of-sight view of a user and can be pressed by a finger of the user to perform a predetermined task of the software program, and a hidden button area having multiple buttons that are at least partially covered from a line-of-sight view of the user; and

a tactile button assembly operatively connected to the bezel, extending over the hidden button area of the computer touch screen and including multiple, actuatable tactile buttons, each of the tactile buttons including tactile indicia that can be tactilely perceived by the user and wherein each of the tactile buttons can move between a non-actuated position and an actuated position, each of the tactile buttons including a supported end, an intermediate portion extending from the supported end over at least a portion of the computer touch screen and a contact end that is arranged to selectively contact a respective one of the hidden buttons when the tactile button is moved from the non-actuated position to the actuated position for performing a predetermined task of the software program, the contact end of the tactile button being spaced from and supported above the computer touch screen in a cantilevered arrangement when the tactile button is in the non-actuated position.

20. A tactile button assembly for allowing cross-disability manipulation of a computer touch screen that is operably connected to an electronic computer having a software program stored thereon, the computer touch screen housed in a bezel, the tactile button assembly comprising:

a panel connectable to the bezel for supporting the tactile button assembly with respect to the computer touch screen; and

at least one actuatable tactile button being configured to move with respect to the panel between a non-actuated position and an actuated position, each of the one actuatable tactile button;

having a supported end operatively connected to the panel, an intermediate portion extending from the panel and a contact end being spaced from and supported above the computer touch screen in a cantilevered arrangement when the tactile button is in the non-actuated position; and

including tactile indicia that can be tactilely perceived by a user;

wherein the at least one tactile button is relatively further from the computer touch screen in the non-actuated position and the at least one tactile button is relatively closer to the computer touch screen in the actuated position.

21. The tactile button assembly of claim 20 wherein the computer touch screen includes at least one virtual button that is graphically displayed on the computer touch screen so that the at least one virtual button is arranged within a line-of-sight view of a user and can be touched by a finger of the user for activating the touch screen;

and

at least one hidden button that is defined upon the computer touch screen and that underlies at least a portion of the tactile button assembly so that when the at least one the tactile button is in the actuated position, the at least one tactile button can activate the touch screen.