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US 7,119,815 B1Granted
Analyzing alpha values for flicker filtering
AssigneeIntel Corporation
InventorBenjamin M. Cahill, III
Life of this patent
Estimating the term…
Abstract
A flicker filter is adjusted according to degree of alpha blending performed on a display signal. For some weakly showing graphics images, a lower flicker filter level may be implemented or the flicker filter may be turned off. A threshold for turning off the flicker filter may be programmable.
Claims17
A method comprising:
- receiving an alpha value, wherein the alpha value indicates how a video signal and a graphics signal are to be combined;
- comparing the alpha value to a threshold value to arrive at a result;
- and
- adjusting a filter level of a flicker filter in response to the result.
1 more element
A system comprising:
- a controller to associate an alpha value with a signal to be displayed;
- and
- a processor coupled to the controller to execute a software program which includes instructions that if executed enable the system to compare the alpha value to a threshold value to produce a result, and
- adjust one of a plurality of levels of a flicker filter based upon the result.
1 more element
An article comprising a medium storing instructions that, upon execution, enable a processor-based system to:
- receive an alpha value, wherein the alpha value indicates how a video signal and a graphics signal are to be combined;
- compare the alpha value to a threshold value to arrive at a result;
- and
- adjust a filter level of a flicker filter based on the result.
1 more element
Dependencies are inferred from the claim text.