Utilization of temporal and spatial parameters to enhance the writing capability of an electronic device

• US 9,141,134 B2
• Filed: 05/31/2011
• Issued: 09/22/2015
• Est. Priority Date: 06/01/2010
• Status: Active Grant

• Current Assignee: Intel Corporation
• Original Assignee: Intel Corporation
• Inventors: Chambers, Paul S., Tarricone, Brian, Anderson, Rhett, Liu, Victor Weiping
• Primary Examiner(s): Patel, Kumar
• Assistant Examiner(s): Ahn, Sejoon
• Application Number:
  US13/149,868
• Publication Number:
  US 20120200540A1
• Time in Patent Office: 1,575 Days
• Field of Search: 345/179
• US Class Current: 1/1
• CPC Class Codes: G06F 1/1616 with folding flat displays, e.g. laptop computers or notebooks having a clamshell configuration, with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
• CPC Class Codes: G06F 1/1643 the display being associated to a digitizer, e.g. laptops that can be used as penpads details related to the relative motion of the display enclosure with respect to the body enclosure, e.g. to move between laptop and tablet PC configuration G06F1/1615
• CPC Class Codes: G06F 1/1647 including at least an additional display G06F1/1692 takes precedence
• CPC Class Codes: G06F 3/0482 Interaction with lists of selectable items, e.g. menus
• CPC Class Codes: G06F 3/0483 Interaction with page-structured environments, e.g. book metaphor
• CPC Class Codes: G06F 3/04842 Selection of displayed objects or displayed text elements G06F3/0482 takes precedence
• CPC Class Codes: G06F 3/0488 using a touch-screen or digitiser, e.g. input of commands through traced gestures
• CPC Class Codes: G06F 3/04883 for inputting data by handwriting, e.g. gesture or text

Abstract

The enhanced feature of this invention is the direction of a pen input on an electronic device to a separate canvas where it can be separately manipulated and processed for use. Temporal and spatial analysis can ensure that each canvas contain pen strokes that spatially belong together such as an individual word composed of multiple strokes for easy manipulation of the word on the screen. Another related enhanced feature of the invention for erasing portions of the inputted writing is the process of generating a new curve with different points than the original curve.

Claims

1. An electronic device implemented method for receiving writing input, comprising:

receiving, via a first application operating on the electronic device, a pen input onto a master canvas of the first application;

creating, by the first application, a plurality of child canvases based on spatial and temporal information associated with the pen input, wherein each of the plurality of child canvases corresponds to one of a plurality of time periods defined by the temporal information, and the pen input made onto the master canvas during each time period of the plurality of time periods being inserted into a corresponding one of the plurality of child canvases after each time period of the plurality of time periods elapses, wherein the plurality of child canvases are separately processed by second one or more applications supporting the first application, and the plurality of child canvases enable individual manipulation of all the pen input made during the corresponding one of the plurality of time periods within the corresponding child canvas within the first application; and

inserting, by the first application, the plurality of child canvases into the master canvas.

2. The method of claim 1, wherein the plurality of child canvases are smaller in area than a master canvas that receives the pen input.

3. The method of claim 2 wherein at least one of the plurality of child canvases encloses a single word.

4. The method of claim 1, further comprising:

receiving, by the electronic device, an eraser input that intersects a curve, wherein the curve is determined by a series of control points;

determining, by the electronic device, a shape of an erasing contour of the eraser input;

identifying, by the electronic device, based on the eraser input, one or more new control points that did not previously exist on the curve; and

modifying, by the electronic device, the curve based on the erasing contour and the new control points.

5. The method of claim 4 wherein at least one of the new control points is between a point at which the eraser input intersects the curve and a nearest control point of the series of control points.

6. The method of claim 4, wherein the one or more new control points do not lie on a straight segment connecting two control points of the series of control points.

7. The method of claim 4, further comprising deleting, by the electronic device, one or more of the series of control points based on the eraser input.

8. The method of claim 4, wherein the one or more new control points are marked as being synthetic, and wherein the one or more new control points move in response to receiving additional eraser input.

9. The method of claim 1, wherein the spatial information is based on a proximity of pen strokes received as the pen input.

10. The method of claim 1, wherein the temporal information is based on the elapsing of a period of time between pen strokes received as the pen input.

11. A non-transitory computer readable medium having a plurality of instructions stored thereon, which, when executed by a processor of a computing device cause the computing device to:

receive, via a first application of the computing device, a pen input on a master canvas of the first application;

create, via the first application, a plurality of child canvases based on spatial and temporal information associated with the pen input, wherein each of the plurality of child canvases corresponds to one of a plurality of time periods defined by the temporal information, and the pen input made onto the master canvas during each time period of the plurality of time periods being inserted into a corresponding one of the plurality of child canvases after each time period of the plurality of time periods elapses, wherein the plurality of child canvases are separately processed by second one or more applications that support the first application, and the plurality of child canvases enable individual manipulation of all the pen input made during the corresponding one of the plurality of time periods within the corresponding child canvases within the first application; and

insert, by the first application, the plurality of child canvases into the master canvas.

12. The non-transitory computer readable medium of claim 11, wherein the computing device is further caused to:

receive an eraser input that intersects a curve, wherein the curve is determined by a series of control points;

determine a shape of an erasing contour associated with the eraser input;

identify, based on the eraser input, one or more new control points that did not previously exist on the curve; and

modify the curve based on the erasing contour and the new control points.

13. The non-transitory computer readable medium of claim 12, wherein at least one of the new control points is between a point at which the eraser input intersects the curve and a nearest control point of the series of control points.

14. The computer-readable medium of claim 12, wherein the one or more new control points do not lie on a straight segment connecting two control points of the series of control points.

15. The computer-readable medium of claim 12, wherein the instructions, when executed by the processor, further cause the computing device to delete one or more of the series of control points based on the eraser input.

16. The computer-readable medium of claim 12, wherein the instructions, when executed by the processor, further cause the computing device to:

mark the one or more new control points as being synthetic; and

move the one or more new control points in response to receiving additional eraser input.

17. The non-transitory computer readable medium of claim 11 wherein the plurality of child canvases are smaller in area than the master canvas that receives the pen input.

18. The non-transitory computer readable medium of claim 17 wherein at least one of the plurality of child canvases encloses a single word.

19. The computer-readable medium of claim 11, wherein the spatial information is based on a proximity of pen strokes received as the pen input.

20. The computer-readable medium of claim 11, wherein the temporal information is based on the elapsing of a period of time between pen strokes received as the pen input.