System and method for dilation for glyph rendering

• US 8,085,271 B2
• Filed: 06/08/2007
• Issued: 12/27/2011
• Est. Priority Date: 06/08/2007
• Status: Active Grant

• Current Assignee: Apple Inc.
• Original Assignee: Apple Inc.
• Inventors: Clegg, Derek, Sheikh, Haroon
• Primary Examiner(s): Lay, Michelle K
• Application Number:
  US11/760,677
• Publication Number:
  US 20080303825A1
• Time in Patent Office: 1,663 Days
• Field of Search: 345/467, 345/471, 345/472, 715/270
• US Class Current: 345/472
• CPC Class Codes: G09G 5/28 for enhancement of character form, e.g. smoothing

Abstract

A system and method for dilating a glyph for glyph rendering is described. The method includes receiving information including at least one of an element value of a rendering matrix, a glyph characteristic, a display background characteristic, an application characteristic, a display characteristic, and a graphics engine characteristic. The method further includes determining a dilation factor value from the received information. The method also includes dilating the outline of the glyph using the determined dilation factor.

Claims

1. A method for dilating an outline of a glyph, comprising:

receiving an information including at least one of;

an element value of a rendering matrix; and

a display characteristic including an orientation of a display for rendering the glyph;

determining by an electronic device at least one dilation factor from the orientation, wherein the at least one dilation factor is determined by a dilation module that is separate from an outline creation module configured to scale the glyph by a scale factor; and

dilating the outline of the glyph using the at least one dilation factor.

2. The method of claim 1, wherein the information further includes at least one of:

a glyph characteristic;

a display background characteristic;

an application characteristic; and

a graphics engine characteristic.

3. The method of claim 1, wherein the information is received by a sensor, the sensor being an accelerometer and/or an ambient light sensor.

4. The method of claim 1, wherein the at least one dilation factor comprises a first dilation factor and a second dilation factor.

5. The method of claim 4, wherein the first dilation factor is for dilation in the horizontal direction and the second dilation factor is for dilation in the vertical direction.

6. The method of claim 1, wherein the at least one dilation factor comprises only one dilation factor, the dilation factor for dilation in the horizontal direction and dilation in the vertical direction.

7. The method of claim 1, further comprising:

creating a bitmapped image from the dilated outline;

creating the glyph from the bitmapped image; and

displaying the glyph on a display.

8. The method of claim 1, wherein the at least one dilation factor is an at least one function.

9. The method of claim 8, further comprising creating the at least one function from the information.

10. The method of claim 1, wherein the at least one dilation factor is configured to thicken the outline of the glyph.

11. A system for dilating an outline of a glyph, comprising:

a receiving module comprising an electronic device to receive an information including at least one of;

an element value of a rendering matrix; and

a display characteristic including an orientation of a display for rendering the glyph;

a determination module to determine at least one dilation factor from the orientation wherein the at least one dilation factor is determined by a dilation module that is separate from an outline creation module configured to scale the glyph by a scale factor; and

a dilation module to dilate the outline of the glyph using the at least one dilation factor.

12. The system of claim 11, wherein the information is received by a sensor, the sensor being an accelerometer and/or an ambient light sensor.

13. The system of claim 11, wherein the at least one dilation factor comprises a first dilation factor and a second dilation factor.

14. The system of claim 13, wherein the first dilation factor is for dilation in the horizontal direction and the second dilation factor is for dilation in the vertical direction.

15. The system of claim 11, wherein the at least one dilation factor comprises only one dilation factor, the dilation factor for dilation in the horizontal direction and dilation in the vertical direction.

16. The system of claim 11, further comprising:

a creation module to create a bitmapped image from the dilated outline;

a conversion module to create the glyph from the bitmapped image; and

a display module to display the glyph on a display.

17. The system of claim 11, wherein the at least one dilation factor is an at least one function.

18. The system of claim 17, further comprising a function creation module to create the at least one function from the information.

19. The system of claim 11, wherein the information further includes at least one of:

a glyph characteristic;

a display background characteristic;

an application characteristic; and

a graphics engine characteristic.

20. The system of claim 11, wherein the at least one dilation factor is configured to thicken the outline of the glyph.

21. A machine-readable non-transitory storage medium storing executable instructions to cause a processor to perform a method for dilating a glyph, comprising:

receiving an information, from an electronic device, including at least one of;

an element value of a rendering matrix; and

a display characteristic including an orientation of a display for rendering the glyph

determining at least one dilation factor from the orientation, wherein the at least one dilation factor is determined by a dilation module that is separate from an outline creation module configured to scale the glyph by a scale factor; and

dilating the outline of the glyph using the at least one dilation factor.

22. The machine-readable medium of claim 21, wherein the at least one dilation factor comprises a first dilation factor and a second dilation factor.

23. The machine-readable medium of claim 22, wherein the first dilation factor is for dilation in the horizontal direction and the second dilation factor is for dilation in the vertical direction.

24. The machine-readable medium of claim 21, wherein the at least one dilation factor comprises only one dilation factor, the dilation factor for dilation in the horizontal direction and dilation in the vertical direction.

25. The machine-readable medium of claim 21, further comprising:

creating a bitmapped image from the dilated outline;

creating the glyph from the bitmapped image; and

displaying the glyph on a display.

26. The machine-readable medium of claim 21, wherein the at least one dilation factor is an at least one function.

27. The machine-readable medium of claim 26, further comprising creating the at least one function from the information.

28. The machine-readable medium of claim 21, wherein the information is received by a sensor, the sensor being an accelerometer and/or an ambient light sensor.

29. The machine-readable storage medium of claim 21, wherein the information further includes at least one of:

a glyph characteristic;

a display background characteristic;

an application characteristic; and

a graphics engine characteristic.

30. The machine-readable storage medium of claim 21, wherein the at least one dilation factor is configured to thicken the outline of the glyph.

31. A system for displaying a glyph on a display of an electronic device, comprising:

means for creating, by a hardware device, an outline of the glyph from a character information, wherein the glyph represents the character;

means for receiving an information including at least one of;

an element value of a rendering matrix; and

a display characteristic including an orientation of a display for rendering the glyph;

means for determining at least one dilation factor from the orientation, wherein the at least one dilation factor is determined by a dilation module that is separate from an outline creation module configured to scale the glyph by a scale factor;

means for dilating the outline of the glyph using the at least one dilation factor;

means for creating a bitmapped image from the dilated outline;

means for creating the glyph from the bitmapped image; and

means for displaying the glyph on the display.

32. The system of claim 31, wherein the information is received by a sensor, the sensor being an accelerometer and/or an ambient light sensor.

33. The system of claim 31, wherein the at least one dilation factor is configured to thicken the outline of the glyph.

34. The system of claim 31, wherein the information further includes at least one of:

a glyph characteristic;

a display background characteristic;

an application characteristic; and

a graphics engine characteristic.