Computer graphics processing and selective visual display system – Computer graphics processing – Attributes
Reexamination Certificate
2011-03-29
2011-03-29
Sajous, Wesner (Department: 2628)
Computer graphics processing and selective visual display system
Computer graphics processing
Attributes
C345S102000, C345S545000, C345S591000, C345S690000, C348S557000, C348S560000, C348S687000, C348S708000, C358S518000, C358S519000, C358S523000
Reexamination Certificate
active
07916153
ABSTRACT:
Embodiments of the present invention generally provide m Methods and apparatus for reducing power consumption of backlit displays are described. Power consumption is reduced by dimming backlighting by a first scale factor and boosting pixel values by a second scale factor to compensate for the dimming. The scale factors may be constant values. Alternately, one or both of the scale factors may be determined based on pixel values for one or more frames to be displayed and/or one or more frames that have been displayed. For example, scale factors may be calculated based on an average linear amplitude of one or more frames of pixel values or from a maximum pixel value of one or more frames of pixel values. A graphical processing system is described including an integrated circuit capable of transforming a pixel value from a gamma-compensated space to a linear space.
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Lew Stephen D.
Ogrinc Michael A.
Nvidia Corporation
Patterson & Sheridan, LLP.
Sajous Wesner
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