SMART TOUCH SCREEN KEYBOARD

• US 20120169611A1
• Filed: 12/30/2010
• Published: 07/05/2012
• Est. Priority Date: 12/30/2010
• Status: Abandoned Application

• Current Assignee: SAP SE
• Original Assignee: SAP SE
• Inventors: Chen, Hanxiang
• Application Number:
  US12/981,877
• Publication Number:
  US 20120169611A1
• Time in Patent Office: Days
• US Class Current: 345/173
• CPC Class Codes: G06F 3/04186 Touch location disambiguation
• 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 touch screen keyboard is described. Consistent with some embodiments, the touch screen keyboard derives a data pair representing the position of a detected finger press on a touch screen display relative to the position of a detected palm. This relative data is then compared against a set of reference data to identify an intended key press.

Claims

1. A computer-implemented method comprising:

responsive to detecting contact with a touch screen display, deriving a data pair representing a contact position where a finger press was detected on the touch screen display relative to a contact position where a resting palm was detected on the touch screen display; and

comparing the derived data pair to a set of reference data to identify an intended key press of a touch screen keyboard.

2. The computer-implemented method of claim 1, wherein the touch screen display presents a visual representation of the touch screen keyboard.

3. The computer-implemented method of claim 1, wherein the touch screen display does not present a visual representation of the touch screen keyboard.

4. The computer-implemented method of claim 1, wherein comparing the derived data pair to a set of reference data to identify an intended key press includes identifying a reference data pair in the set of reference data that most closely corresponds with the derived data pair, wherein a key associated with the reference data pair in the set of reference data that most closely corresponds with the derived data pair is selected as the intended key press.

5. The computer-implemented method of claim 2, wherein the reference data pair in the set of reference data that most closely corresponds with the derived data pair is the reference data pair that is closest in distance to the derived data pair.

6. The computer-implemented method of claim 1, wherein the set of reference data used to identify the intended key press has been derived through a keyboard configuration process by which at least one reference data pair is generated for each key of a touch screen keyboard, each reference data pair in the set of reference data representing a relative position of a key in relation to a position of a palm.

7. The computer-implemented method of claim 6, wherein a subset of the reference data pairs in the set of reference data are generated by detecting the contact positions of the fingers of a user after the user has been prompted to place his fingers on a predetermined set of reference keys displayed on the touch screen display.

8. The computer-implemented method of claim 1, wherein the set of reference data have been selected to correspond with a particular brand, model, or type of mechanical keyboard.

9. The computer-implemented method of claim 1, wherein comparing the derived data pair to the set of reference data to identify an intended key press includes identifying in which one of two or more regions the finger press was detected, and selecting a set of reference data to correspond with the region in which the finger press was detected.

10. The computer-implemented method of claim 9, wherein a first set of reference data associated with numeric keys corresponds with a first region and a second set of reference data associated with alphabetic keys corresponds with a second region.

11. The computer-implemented method of claim 1, wherein comparing the derived data pair to the set of reference data to identify an intended key press includes determining that the touch screen keyboard has been configured for operation in a numeric pad mode, and responsive to the determination, selecting a set of reference data associated with keys for a numeric key pad.

12. A non-transitory computer readable medium storing instructions thereon, which, when executed by a processor, cause the processor to perform the following operations:

responsive to detecting contact with a touch screen display, derive a data pair representing a contact position where a finger press was detected on the touch screen display relative to a contact position where a resting palm was detected on the touch screen display; and

compare the derived data pair to a set of reference data to identify an intended key press of a touch screen keyboard.

13. The computer readable medium of claim 12, storing additional instructions that cause the touch screen display to present a visual representation of the touch screen keyboard.

14. The computer readable medium of claim 12, storing additional instructions that cause the processor to identify a reference data pair in the set of reference data that most closely corresponds with the derived data pair, wherein a key associated with the reference data pair in the reference data that most closely corresponds with the derived data pair is selected as the intended key press.

15. The computer readable medium of claim 12, wherein the reference data pair in the set of reference data that most closely corresponds with the derived data pair is the reference data pair that is closest in distance to the derived data pair.

16. The computer readable medium of claim 12, wherein the set of reference data used to identify the intended key press has been derived through a keyboard configuration process by which at least one reference data pair is generated for each key of a touch screen keyboard, each reference data pair in the set of reference data representing a relative position of a key in relation to a position of a palm.

17. The computer readable medium of claim 16, storing additional instructions that cause the processor to generate a subset of the reference data pairs in the set of reference data by detecting the contact positions of the fingers of a user after the user has been prompted to place his fingers on a predetermined set of reference keys displayed on the touch screen display.

18. The computer readable medium of claim 12, wherein the set of reference data have been selected to correspond with a particular brand, model, or type of mechanical keyboard.

19. The computer readable medium of claim 12, storing additional instructions that cause the processor to identify in which one of two or more regions the finger press was detected, and select a set of reference data to correspond with the region in which the finger press was detected.

20. The computer readable medium of claim 19, wherein a first set of reference data associated with numeric keys corresponds with a first region and a second set of reference data associated with alphabetic keys corresponds with a second region.

21. The computer readable medium of claim 12, storing additional instructions that cause the processor to determine that the touch screen keyboard has been configured for operation in a numeric key pad mode, and responsive to the determination, select a set of reference data associated with keys for a numeric key pad.

22. A tablet computer comprising:

a touch screen display; and

a processor communicatively coupled to a memory, the processor to execute instructions stored within the memory and to cause the tablet computer to i) derive a data pair representing a contact position where a finger press was detected on the touch screen display relative to a contact position where a resting palm was detected on the touch screen display, and ii) compare the derived data pair to a set of reference data to identify an intended key press of a touch screen keyboard.