Reduced keyboard character selection system and method

• US 7,656,316 B2
• Filed: 09/04/2008
• Issued: 02/02/2010
• Est. Priority Date: 04/29/2004
• Status: Active Grant

• Current Assignee: Malikie Innovations Limited (Key Patent Innovations Limited)
• Original Assignee: Blackberry Limited
• Inventors: Lazaridis, Mihal, Griffin, Jason T.
• Primary Examiner(s): Edwards, Jr.; Timothy
• Application Number:
  US12/204,632
• Publication Number:
  US 20080318637A1
• Time in Patent Office: 516 Days
• Field of Search: 345/157, 345/160, 345/168, 341/22, 341/23, 715/859, 715/860
• US Class Current: 341/22
• CPC Class Codes: G06F 3/0236 using selection techniques to select from displayed items
• CPC Class Codes: H03K 2217/96031 Combination of touch switch and LC display

Abstract

A system and method of selecting a character for display in a communication device having a display and a reduced-key keyboard is provided. One of the plurality of keys on the reduced-key keyboard is selected and a default letter associated with the selected key is displayed. A backspace key is selected to display a cursor in the position of the character on the display. The key associated with the default character is selected again and an alternate character associated with the selected key is displayed in place of the default letter.

Claims

1. A mobile communication device comprising:

a user interface including a display screen and plurality of user inputs including a reduced-key keyboard comprising a plurality of input keys of which at least one is a multi-character key associated with a plurality of alphanumeric characters; and

a processing subsystem having control software programmed to;

display a default character associated with a selected multi-character key upon a first actuation thereof;

display a cursor in the position of the default character on the display screen when a user input for inputting a request to move the cursor to a previously entered character is subsequently actuated at least one time; and

display an alternate character associated with the selected multi-character key upon a second actuation thereof.

2. The mobile communication device as recited in claim 1, wherein the plurality of alphanumeric characters associated with the selected multi-character key comprise a plurality of letters.

3. The mobile communication device as recited in claim 2, wherein the plurality of alphanumeric characters associated with the selected multi-character key further comprises at least one numeric character.

4. The mobile communication device as recited in claim 1, wherein the plurality of alphanumeric characters associated with the selected multi-character key comprises at least one letter.

5. The mobile communication device as recited in claim 4, wherein the plurality of alphanumeric characters associated with the selected multi-character key further comprises at least one numeric character.

6. The mobile communication device as recited in claim 1, wherein the user input is a backspace key.

7. The mobile communication device as recited in claim 1, wherein said plurality of user inputs further comprises an enter key.

8. The mobile communication device as recited in claim 1, wherein the user input that displays the cursor in the position of the default character on the display screen when actuated is one of a clear key, a ‘

C’

key, a ‘

CLR’

key, a backspace key, a soft key, a touch screen key, a navigation tool, a mouse, and a joystick selector.

9. The mobile communication device as recited in claim 1, wherein said control software is further programmed to position the cursor in the position of the alternate character on the display when the user input is again actuated and to display a different alternate character associated with the selected multi-character key upon a third actuation thereof.

10. The mobile communication device as recited in claim 1, wherein said control software is further programmed to delete a displayed character if the user input is successively twice actuated.

11. The mobile communication device as recited in claim 1, wherein said mobile communication device is a wireless mobile communication device including data and voice communication functionalities.

12. The mobile communication device as recited in claim 1, wherein said mobile communication device is a wireless mobile communication device including personal information management functionalities.

13. The mobile communication device as recited in claim 1, wherein the reduced-key keyboard comprises a QWERTY alphabetic letter arrangement.

14. The mobile communication device as recited in claim 13, wherein the QWERTY alphabetic letter arrangement comprises fourteen letter keys, the fourteen letter keys including twenty-six letter indicia.

15. The mobile communication device as recited in claim 14, wherein the fourteen letter keys are organized into three rows of letter keys, a first row comprising five letter keys, a second row comprising five letter keys and a third row comprising four letter keys.

16. The mobile communication device as recited in claim 15, further comprising a backspace key positioned in the third row of letter keys.

17. The mobile communication device as recited in claim 16, wherein the reduced-key keyboard further comprises a numeric phone pad overlaid on the QWERTY alphabetic letter arrangement and centered on the three rows of letter keys.

18. The mobile communication device as recited in claim 1, wherein the reduced-key keyboard is a touch-tone phone pad.

19. A method of selecting a character for display in a communication device having a display screen and plurality of user inputs including a reduced-key keyboard comprising a plurality of input keys of which at least one is a multi-character key associated with a plurality of characters, the method comprising the steps of:

selecting one of a plurality of input keys on the reduced-key keyboard and displaying a default character associated with the selected key;

selecting at least one time a user input for inputting a request to move cursor to a previously entered character and displaying a cursor in the position of the default character on the display screen; and

selecting the selected key and displaying an alternate character associated with the selected key.

20. A processing subsystem configured to be installed in a mobile communication device comprising a user interface including a display screen and a plurality of user inputs including a reduced-key keyboard comprising a plurality of input keys of which at least one is a multi-character key associated with a plurality of alphanumeric characters, said processing subsystem comprising:

control software programmed to display a default character associated with a selected multi-character key upon a first actuation thereof and to display a cursor in the position of the default character on the display screen when a user input for inputting a request to move the cursor to a previously entered character is subsequently actuated at least one time and to then display an alternate character associated with the selected multi-character key upon a second actuation of the multi-character key.