IP Library Granted Patent US 7,250,938
Granted Patent B2
US 7,250,938 · App. 10/752,405 · Granted Jul 31, 2007

System and method for improved user input on personal computing devices

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Quick Facts
Patent No.
US 7,250,938
App. No.
10/752,405
Granted
Jul 31, 2007
Kind
B2
Abstract

A user input mechanism is provided that allows a user to enter words as gestures on a virtual keyboard presented on the display device. The user input mechanism combines two existing and prevalent forms of user input: cursive handwriting and keyboard input. A familiar keyboard layout is presented on the display. A user then may place an implement, such as a stylus or the user's finger, in contact with the display. Typically, the implement will first touch the screen at a position of a first character in a word. The user then may move the implement along the surface of the display from character to character, spelling out a word.

Claims (61)

1. A method for user input, the method comprising:

receiving a user input, wherein the user input includes a gesture that represents a plurality of characters and wherein a shape of the gesture is related to positions of the plurality of characters within a keyboard layout;

identifying a string of characters associated with the gesture; and

providing the identified string as text input.

2. The method of claim 1 , wherein identifying a string associated with the gesture includes performing pattern recognition on the gesture.

3. The method of claim 1 , wherein identifying a string associated with the gesture includes:

identifying a starting position; and

recording a character based on the starting position with respect to the keyboard layout.

4. The method of claim 1 , wherein identifying a string associated with the gesture includes:

identifying a change of direction; and

recording a character based on a position of the change of direction with respect to the keyboard layout.

5. The method of claim 1 , further comprising:

performing a spell check on the identified string.

6. The method of claim 1 , wherein providing the identified string as input includes providing the identified string to an application.

7. The method of claim 1 , wherein the gesture maintains a contact with a touch sensitive device while moving to each of the positions of the plurality of characters corresponding to the keyboard layout.

8. A method for user input, the method comprising:

receiving a user input, wherein the user input includes a gesture that represents a plurality of characters and wherein a shape of the gesture is related to positions of the plurality of characters within a keyboard layout;

identifying a string of characters associated with the gesture, wherein identifying a string associated with the gesture includes:

identifying a sub-gesture; and

providing the identified string as text input.

9. The method of claim 8 , wherein the sub-gesture indicates a double letter.

10. The method of claim 8 , wherein identifying a string associated with the gesture further includes:

recording a character based on a position of the sub-gesture with respect to the keyboard layout.

11. A method for user input, the method comprising:

receiving a user input, wherein the user input includes a gesture that represents a plurality of characters and wherein a shape of the gesture is related to positions of the plurality of characters within a keyboard layout;

identifying a string of characters associated with the gesture;

providing the identified string as text input; and

performing a spell check on the identified string, wherein performing a spell check on the identified string includes:

looking up the identified string in a dictionary;

determining whether the identified string exists in the dictionary; and

responsive to the identified string existing in the dictionary, accepting the identified string as input.

12. The method of claim 11 , wherein performing a spell check on the identified string further includes:

responsive to the identified string not existing in the dictionary, identifying a substitute string in the dictionary for the identified string; and

accepting the substitute string as input.

13. An apparatus for user input; the apparatus comprising:

receipt means for receiving a user input, wherein the user input includes a gesture that represents a plurality of characters and wherein a shape of the gesture is related to positions of the plurality of characters within a keyboard layout;

identification means for identifying a string of characters associated with the gesture; and

providing means for providing the identified string as text input.

14. The apparatus of claim 13 , wherein the identification means includes means for performing pattern recognition on the gesture.

15. The apparatus of claim 13 , wherein the identification means includes:

means for identifying a starting position; and

means for recording a character based on the starting position with respect to the keyboard layout.

16. The apparatus of claim 13 , further comprising:

means for performing a spell check on the identified string.

17. An apparatus for user input, the apparatus comprising:

receipt means for receiving a user input, wherein the user input includes a gesture that represents a plurality of characters and wherein a shape of the gesture is related to positions of the plurality of characters within a keyboard layout;

identification means for identifying a string of characters associated with the gesture, wherein the identification means includes:

means for identifying a change of direction; and

means for recording a character based on a position of the change of direction with respect to the keyboard layout; and

providing means for providing the identified string as text input.

18. An apparatus for user input, the apparatus comprising:

receipt means for receiving a user input, wherein the user input includes a gesture that represents a plurality of characters and wherein a shape of the gesture is related to positions of the plurality of characters within a keyboard layout;

identification means for identifying a string of characters associated with the gesture, wherein the identification means includes:

means for identifying a sub-gesture.

19. The apparatus of claim 18 , wherein the sub-gesture indicates a double letter.

20. The apparatus of claim 18 , wherein the identification means further includes:

means for recording a character based on a position of the sub-gesture with respect to the keyboard layout.

21. A computer program product for user input, the computer program product comprising:

instructions for receiving a user input, wherein the user input includes a gesture that represents a plurality of characters and wherein a shape of the gesture is related to positions of the plurality of characters within a keyboard layout;

instructions for identifying a string of characters associated with the gesture; and

instructions for providing the identified string as text input.

Assignments (5)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 10, 2025
From: LENOVO PC INTERNATIONAL LIMITED
To: LENOVO SWITZERLAND INTERNATIONAL GMBH
Reel/Frame 069870/0670 →
NUNC PRO TUNC ASSIGNMENT Recorded Nov 25, 2015
From: LENOVO (SINGAPORE) PTE LTD.
To: LENOVO PC INTERNATIONAL
Reel/Frame 037160/0001 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 4, 2005
From: INTERNATIONAL BUSINESS MACHINES CORPORATION
To: LENOVO (SINGAPORE) PTE LTD.
Reel/Frame 016891/0507 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 21, 2004
From: KIRKLAND, DUSTIN C.; BRUCEKUMHYR, DAVID; RATLIFF, EMILY JANE; SMITH, KYLENE JO
To: INTERNATIONAL BUSINESS MACHINES CORPORATION
Reel/Frame 014542/0980 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 20, 2004
From: KIRKLAND, DUSTIN C.; KUMHYR, DAVID BRUCE; RATLIFF, EMILY JANE; SMITH, KYLENE JO
To: INTERNATIONAL BUSINESS MACHINES CORPORATION
Reel/Frame 014271/0391 →