Blending text and graphics for display
First Claim
Patent Images
1. A method comprising:
- acquiring a graphics primitive to be displayed on a television receiver; and
selectively adjusting the transparency of portions of the primitive relative to a background to reduce flicker when the primitive is displayed on a television receiver by smoothing the horizontal edges of the primitive based on the color of the primitive and the color of the background.
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Abstract
Text and graphics elements may be alpha blended in a way to reduce flicker when the text or graphics are display by a processor-based television receiver. The alpha values are used to intelligently smooth pixels adjacent the element to create television text and graphics.
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Citations
36 Claims
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1. A method comprising:
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acquiring a graphics primitive to be displayed on a television receiver; and
selectively adjusting the transparency of portions of the primitive relative to a background to reduce flicker when the primitive is displayed on a television receiver by smoothing the horizontal edges of the primitive based on the color of the primitive and the color of the background. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An article comprising a medium for storing instructions that enable a processor-based system to:
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acquire a graphics primitive to be displayed on a television receiver; and
selectively adjust the transparency of the primitive relative to a background to reduce flicker when said primitive is displayed on a television receiver by smoothing the horizontal edges of the primitive based on the color of the primitive and the color of the background. - View Dependent Claims (10, 11, 12, 13)
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14. An apparatus to reduce flicker comprising:
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a processor; and
a storage coupled to said processor, said storage storing instructions to enable a graphics primitive to be acquired for display on a television receiver and to selectively adjust the transparency of the primitive relative to the background to reduce flicker by smoothing the horizontal edges of the primitive based on the color of the primitive and the color of the background. - View Dependent Claims (15, 16, 17, 18)
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19. A method comprising:
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acquiring a graphics primitive to be displayed; and
selectively adjusting the transparency of portions of the primitive relative to a background to reduce flicker when the primitive is displayed by smoothing horizontal edges of the primitive based on the color of the element and the color of the background. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26)
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27. An article comprising a medium for storing instructions that cause a processor-based system to:
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acquire a graphics primitive to be displayed; and
selectively adjust the transparency of the primitive relative to background to reduce flicker when said primitive is displayed by smoothing horizontal edges of the primitive based on the color of the element and the color of the background. - View Dependent Claims (28, 29, 30, 31)
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32. An apparatus to reduce flicker compromising:
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a processor;
a storage coupled to said processor, said storage storing instructions to cause a graphics primitive to be acquired for display and to selectively adjust the transparency of the primitive relative to a background to reduce flicker by smoothing horizontal edges of the primitive based on the color of the element and the color of the background. - View Dependent Claims (33, 34, 35, 36)
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Specification