METHOD AND APPARATUS FOR DISPLAY SPEED IMPROVEMENT OF IMAGE

• US 20100289826A1
• Filed: 03/29/2010
• Published: 11/18/2010
• Est. Priority Date: 05/12/2009
• Status: Abandoned Application

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Park, Jung Hoon, Park, Young Sik
• Application Number:
  US12/748,571
• Publication Number:
  US 20100289826A1
• Time in Patent Office: Days
• US Class Current: 345/676
• CPC Class Codes: G06F 3/04845 for image manipulation, e.g. dragging, rotation, expansion or change of colour
• CPC Class Codes: G06F 3/04883 for inputting data by handwriting, e.g. gesture or text

Abstract

Provided is a method of improving an output speed of an image being generated on a display includes generating a drag event of the image; checking a coordinate in a preset cycle in case the drag event is generated; predicting a next coordinate to which the image is to be moved by comparing a current coordinate with a previous coordinate of the preset cycle; and rendering the image to the predicted next coordinate.

Claims

1. A method of improving an output speed of an image being generated on a display, the method comprising:

generating a drag event of the image;

checking a coordinate in a preset cycle in case the drag event is generated;

predicting a next coordinate to which the image is to be moved by comparing a current coordinate with a previous coordinate of the preset cycle; and

rendering the image to the predicted next coordinate.

2. The method of claim 1, further comprising:

outputting the rendered image to the next coordinate in case the image is dragged to the next coordinate.

3. The method of claim 1, further comprising:

removing the rendered image in the next coordinate in case the image is touch-released or a drag direction of the image is changed before the image is dragged to the next coordinate.

4. The method of claim 3, further comprising:

rendering the image and outputting the rendered image to a spot where touch is released.

5. The method of claim 1, wherein predicting the next coordinate comprises:

calculating a horizontal component increment between the previous coordinate and the current coordinate;

calculating a vertical component increment between the previous coordinate and the current coordinate; and

adding the horizontal component increment to a horizontal component of the current coordinate, and adding the vertical component increment to a vertical component of the current coordinate.

6. The method of claim 5, further comprising:

multiplying the horizontal component increment and the vertical component increment by a predetermined weight value.

7. The method of claim 5, wherein the horizontal component increment and the vertical component increment are set to a size which is equal to or less than a preset maximum value.

8. An apparatus of improving an output speed of an image being generated on a display, comprising:

a coordinate prediction unit which predicts a next coordinate by comparing a current coordinate with a previous coordinate when a drag event of the image is generated;

a rendering performing unit which renders the image to the predicted next coordinate; and

a controller which controls an output of the rendered image.

9. The apparatus of claim 8, wherein the controller controls to output the rendered image to the predicted next coordinate in case the image is dragged to the next coordinate.

10. The apparatus of claim 8, wherein the controller controls to remove the rendered image in case the image is not dragged to the predicted next coordinate when a touch-release event is generated, and to output the rendered image to a spot where the touch-release event is generated.

11. The apparatus of claim 8, wherein the controller removes the rendered image in case the image is not dragged to the predicted next coordinate and a drag direction is changed.

12. The apparatus of claim 8, wherein the coordinate prediction unit calculates a horizontal component increment and a vertical component increment respectively by comparing the current coordinate with the previous coordinate, and predicts the next coordinate by adding the horizontal component increment to a horizontal component of the current coordinate and adding the vertical component increment to a vertical component of the current coordinate.

13. The apparatus of claim 8, wherein the coordinate prediction unit predicts the next coordinate by multiplying the horizontal component increment and the vertical component increment by a preset weight value.

14. The apparatus of claim 12, further comprising a storage unit which stores a maximum value of the horizontal component increment and the vertical component increment.

15. A method of improving an output speed of an image being generated on a display, the method comprising:

generating a movement event of the image;

predicting a movement path of the image according to the movement event; and

rendering the image according to the predicted movement path.

16. The method of claim 15, wherein predicting the movement path of the image comprises:

checking a coordinate in a preset cycle; and

calculating a movement direction and a distance by comparing a current coordinate with a previous coordinate.

17. The method of claim 16, wherein calculating the movement direction and the distance comprises:

calculating a horizontal component increment between the previous coordinate and the current coordinate;

calculating a vertical component increment between the previous coordinate and the current coordinate; and

adding the horizontal component increment to a horizontal component of the current coordinate, and adding the vertical component increment to a vertical component of the current coordinate.

18. The method of claim 17, further comprising multiplying the horizontal component increment and the vertical component increment by a predetermined weight value.

19. The method of claim 15, further comprising outputting the rendered image in case the image is moved to the predicted movement path.

20. The method of claim 15, further comprising removing the rendered image in case the image is not moved to the predicted movement path.