Next letter prediction for virtual keyboard

• US 9,134,810 B2
• Filed: 08/20/2012
• Issued: 09/15/2015
• Est. Priority Date: 01/19/2012
• Status: Active Grant

• Current Assignee: Malikie Innovations Limited (Key Patent Innovations Limited)
• Original Assignee: Blackberry Limited
• Inventors: Griffin, Jason Tyler, Pasquero, Jerome, Mckenzie, Donald Somerset McCulloch
• Primary Examiner(s): Lao, Lun-Yi
• Assistant Examiner(s): Suteerawongsa, Jarurat
• Application Number:
  US13/589,405
• Publication Number:
  US 20130187857A1
• Time in Patent Office: 1,121 Days
• Field of Search: 345/156, 345168-169, 345/173, 345/179
• US Class Current: 1/1
• CPC Class Codes: G06F 3/0237 using prediction or retrieval techniques
• CPC Class Codes: G06F 3/041 Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
• CPC Class Codes: G06F 3/04886 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 including receiving an input of a character from a virtual keyboard displayed on a display, generating one or more sets of predicted input characters based on the input character, wherein each set of predicted input characters corresponds to a subsequent candidate input character, and displaying a visual indication of at least some of the one or more sets of predicted input characters, wherein the visual indication is displayed at keys of the virtual keyboard associated with subsequent candidate input characters corresponding to the sets of predicted input characters.

Claims

1. A method, comprising:

receiving an input of a character from a virtual keyboard displayed on a display;

generating one or more sets of predicted input characters based on the input character, wherein each set of predicted input characters defines at least one subsequent candidate input character; and

displaying a visual indication of at least one set of predicted input characters, wherein the visual indication comprises a display of all characters of the at least one set of predicted input characters superimposed over a key of the at least one subsequent candidate input character of the virtual keyboard;

wherein a first type of input received at the key causes input of the character associated with the key and a second type of input received at or near the key causes input of the at least one set of predicted input characters, the first type of input being a tap input, and the second type of input being a long press input for a predetermined period of time or a swipe input from the key towards a displayed input field.

2. The method of claim 1, wherein the visual indication varies in dependence on a predictive rank of each of the at least one set of predicted input characters for which a visual indication is displayed.

3. The method of claim 2, wherein the visual indication of a first key of the virtual keyboard of a subsequent candidate input character of a first set of predicted input characters having a higher predictive rank provides a greater emphasis than the visual indication of a second key of the virtual keyboard of a subsequent candidate input character of a second set of predicted input characters having a lower predictive rank.

4. The method of claim 3, wherein the first key of the virtual keyboard is displayed in a larger size than the second key of the virtual keyboard.

5. The method of claim 3, wherein the first key of the virtual keyboard is displayed in a different color than the second key of the virtual keyboard.

6. The method of claim 3, wherein the first key of the virtual keyboard is displayed using a first type of visual emphasis while the second key of the virtual keyboard is displayed using a second type of visual emphasis different than the first type of visual emphasis.

7. The method of claim 3, wherein the first key of the virtual keyboard is displayed using more than one type of visual emphasis while the second key of the virtual keyboard is displayed using only one type of visual emphasis.

8. The method of claim 7, wherein the more than one type of visual emphasis include two or more of enlarging, backlighting, highlighting, underlining, bolding, italicizing and color differentiation, and the one type of visual emphasis is one of enlarging, backlighting, highlighting, underlining, bolding, italicizing or color differentiation.

9. The method of claim 1, wherein the visual indication progressively decreases over time.

10. The method of claim 1, wherein the key of the at least one subsequent candidate input character of the virtual keyboard is displayed in a default format of the virtual keyboard while keys of the virtual keyboard which are not associated with a character of a set of predicted input characters are displayed in a different format which deemphasizes the keys.

11. The method of claim 1, further comprising:

increasing a target area associated with the key of the at least one subsequent candidate input character of the virtual keyboard for which a visual indication is displayed.

12. The method of claim 1, wherein the second type of input is the swipe input at or near the key of the at least one subsequent candidate input character of the virtual keyboard.

13. The method of claim 12, wherein the swipe input towards the displayed input field consists of an “

up”

swipe.

14. The method of claim 1, wherein there are at least two sets of predicted input characters, the at least two sets of predicted input characters sharing a common subsequent candidate input character and differing in at least one other subsequent candidate input character, and wherein the visual indication further comprises a display of all characters of one of the at least two sets of predicted input characters superimposed over the key of the common subsequent candidate input character and a display of all characters of another of the at least two sets of predicted input characters superimposed over a different key.

15. An electronic device, comprising:

a processor;

a touchscreen display coupled to the processor, the touchscreen having a virtual keyboard displayed thereon;

wherein the processor is configured to receive an input of a character from the virtual keyboard, generate one or more sets of predicted input characters based on the input character, wherein each set of predicted input characters defines at least one subsequent candidate input character, and display a visual indication of at least one set of predicted input characters, wherein the visual indication comprises a display of all characters of the at least one set of predicted input characters superimposed over a key of the at least one subsequent candidate input character of the virtual keyboard;

wherein a first type of input received at the key causes input of the character associated with the key and a second type of input received at or near the key causes input of the at least one set of predicted input characters, the first type of input being a tap input, and the second type of input being a long press input for a predetermined period of time or a swipe input from the key towards a displayed input field.

16. The electronic device of claim 15, wherein the visual indication varies in dependence on a predictive rank of each of the at least one set of predicted input characters for which a visual indication is displayed.

17. The electronic device of claim 16, wherein the visual indication of a first key of the virtual keyboard of a subsequent candidate input character of a first set of predicted input characters having a higher predictive rank provides a greater emphasis than the visual indication of a character of a second key of the virtual keyboard of a subsequent candidate input character of a second set of predicted input characters having a lower predictive rank.

18. The electronic device of claim 15, wherein the processor is configured to increase a target area associated with the key of the virtual keyboard associated with the character of the at least one set of predicted input characters for which a visual indication is displayed.

19. A non-transitory computer program product having stored thereon computer-readable instructions for implementing a virtual keyboard on a touchscreen display of an electronic device, the instructions, when executed, causing the electronic device to:

display the virtual keyboard including a plurality of keys, each key corresponding to one or more different characters of a plurality of characters; and

in response to receiving an input of a character, generate one or more sets of predicted input characters based on the input character, wherein each set of predicted input characters defines at least one subsequent candidate input character, and display a visual indication of at least one set of predicted input characters, wherein the visual indication comprises a display of all characters of the at least one set of predicted input characters superimposed over a key of the at least one subsequent candidate input character of the virtual keyboard;

wherein a first type of input received at the key causes input of the character associated with the key and a second type of input received at or near the key causes input of the at least one set of predicted input characters, the first type of input being a tap input, and the second type of input being a long press input for a predetermined period of time or a swipe input from the key towards a displayed input field.