Method and system for handwriting recognition with scrolling input history and in-place editing

• US 7,571,384 B1
• Filed: 05/31/2001
• Issued: 08/04/2009
• Est. Priority Date: 05/31/2001
• Status: Expired due to Term

• Current Assignee: Access Company Limited
• Original Assignee: Palmsource Incorporated (Access Company Limited)
• Inventors: Webb, Russell Y.
• Primary Examiner(s): Stork; Kyle R
• Application Number:
  US09/872,245
• Time in Patent Office: 2,987 Days
• Field of Search: 715/541, 715/513, 715/517, 715/523, 715/530, 715/234, 715/243, 715/254, 715/255, 715/268, 382/187
• US Class Current: 715/268
• CPC Class Codes: G06F 3/04883 for inputting data by handwriting, e.g. gesture or text
• 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
• CPC Class Codes: G06V 30/32 Digital ink

Abstract

A computer implemented method for a touch screen user interface for a computer system. A first touchscreen area is provided for accepting text input strokes. A second touchscreen area is provided for displaying recognized text from the text input strokes. The text input strokes are displayed in the first touchscreen area. The text input strokes are recognized and the resulting recognized text is displayed in the second touchscreen area. A portion of the recognized text is displayed in the first touchscreen area, wherein the portion of the recognized text is shown as the text input strokes are recognized.

Claims

1. A method of implementing a touchscreen user interface for an electronic system, the method comprising the steps of:

accepting text input strokes in a first touchscreen area at an insertion point in a second touchscreen, said first touchscreen area configured for recognizing input strokes as text input;

displaying recognized text from the text input strokes in said second touchscreen area at a scroll control area, said second touchscreen area configured for recognizing input strokes as command strokes;

displaying the text input strokes in the first touchscreen area as the strokes are made;

recognizing the text input strokes and displaying recognized text in the second touchscreen area, said recognized text comprising a recognition history;

displaying a portion of the recognized text in the first touchscreen area, the portion of the recognized text shown as the text input strokes are recognized;

scrolling the portion of the recognized text in said first area and scrolling said second area in a simultaneous manner as new text input strokes are recognized to accommodate new input characters;

changing the recognized text in said first touchscreen area, where said text is selected by dragging a boundary around said text within said first touchscreen area, in performing said change, editing said recognition history, so that it reflects the resulting string after editing;

implementing a draggable scroll controller within the first touchscreen area for scrolling the portion of the recognized text displayed in said first touchscreen area, navigating said recognition history; and

implementing in-place editing by replacing one or more previously recognized characters of the portion of the recognized text in the first touchscreen area with newly recognized one or more characters by recognizing new text input strokes made over the one or more previously recognized characters, in performing said editing, editing said recognition history, so that it reflects the resulting string after editing.

2. The method of claim 1 further including the step of scrolling the portion of the recognized text in the first touchscreen area as new text input strokes are recognized.

3. The method of claim 1 further including the steps of:

displaying the portion of the recognized text in the first touchscreen area in a first format; and

displaying the recognized text in the second touchscreen area in a second format, wherein the first format is larger than the second format.

4. The method of claim 1 further including the steps of:

displaying the text input strokes in a first part of the first touchscreen area;

displaying the portion of the recognized text in a second part of the first touchscreen area, wherein the text input strokes are shown in the first part until the text input strokes are recognized and resulting recognized text is shown in the second part.

5. The method of claim 1 further including the step of:

implementing draggable navigation of the recognized text in the second touchscreen area by dragging a boundary of the first touchscreen area to change the portion of the recognized text shown in the first touchscreen area.

6. The method of claim 1 further including the step of:

implementing tab spots in the first touchscreen area to change a location of a text entry point with respect to a plurality of fields of the second touchscreen area.

7. The method of claim 1 wherein the step of recognizing the text input strokes includes immediately recognizing a character after a user completes at least one stroke that defines the character.

8. The method of claim 1 wherein the touchscreen area is provided on a PID (personal information device).

9. The method of claim 1 wherein the touchscreen area is provided on a palmtop computer system.

10. The method of claim 1 where said recognition history is a file being edited or created.

11. In a portable electronic system, a method of implementing a user interface for electronic system, the method comprising the steps of:

accepting text input strokes in a first area at an insertion point, said first area configured for recognizing input strokes as text input;

displaying recognized text from the text input strokes in a second area at a scroll control area, said second area configured for recognizing input strokes as command strokes, said recognized text comprising a recognition history;

displaying the text input strokes in the first area as they are stroked;

recognizing the text input strokes and displaying recognized text in said second area;

displaying a portion of the recognized text in the first area, the portion of the recognized text shown as the text input strokes are recognized;

scrolling the portion of the recognized text in said first area and scrolling said second area in a simultaneous manner as new text input strokes are recognized to accommodate new input characters;

changing the recognized text in said first area, where said text is selected by dragging a boundary around said text within said first area, in performing said change, editing said recognition history, so that it reflects the resulting string after editing;

implementing a draggable scroll controller within the first area for scrolling the portion of the recognized text displayed in said first area, navigating said recognition history; and

implementing in-place editing by replacing one or more previously recognized characters of the portion of the recognized text in the first area with newly recognized one or more characters by recognizing new text input strokes made over the one or more previously recognized characters, in performing said editing, editing said recognition history, so that it reflects the resulting string after editing.

12. The method of claim 11 further including the steps of:

displaying the portion of the recognized text in the first area in a first format; and

displaying the recognized text in the second area in a second format, wherein the first format is larger than the second format.

13. The method of claim 11 further including the steps of:

displaying the text input strokes in a first part of the first area;

displaying the portion of the recognized text in a second part of the first area, wherein the text input strokes are shown in the first part until the text input strokes are recognized and resulting recognized text is shown in the second part.

14. The method of claim 11 further including the step of:

implementing draggable navigation of the recognized text in the second area by dragging a boundary of the first area to change the portion of the recognized text shown in the first area.

15. The method of claim 11 further including the step of:

implementing tab spots in the first area to change a location of a text entry point with respect to a plurality of fields of the second area.

16. The method of claim 11 wherein a first touchscreen display is used to implement the first area and a second touchscreen is used implement the second area.

17. The method of claim 16 where through said first touch screen a point may be selected to insert text, where said second screen advances entry point to correspond to said point in said recognition history.

18. The method of claim 11 wherein a single touchscreen display is used to implement the first area and the second area.

19. The method of claim 11 where said recognition history is a file being edited or created.

20. The method of claim 19 where through said second area a point may be selected to insert text, where said first area advances said entry point to correspond to said point in said recognition history.