Histogram and spatial-based power savings
First Claim
1. A method for reducing power consumed by a display device, the method comprising:
- displaying an active graphics component in a first portion of a display area provided by the display device;
in response to user inactivity in an inactive portion of the display area that is outside the first portion, altering video information in the inactive portion using a histogram manipulation of pixel values for a set of pixels in the inactive portion such that the display device will consume less power when displaying the altered video information than an amount of power that would be required to display the video information without the alteration; and
simultaneously displaying the active graphics component in the first portion and the altered video information in the inactive portion.
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Accused Products
Abstract
Described herein are systems and methods that reduce power consumption for an electronics device that includes a display. Power conservation systems and methods described herein alter video information in one or more inactive portions of a display area such that the alteration decreases power consumption. The invention finds use with many electronics devices, such as portable computing devices powered from a battery or other limited source of power. Since video output often dominates power consumption for an electronics device, decreasing display power consumption may extends battery longevity for the portable device.
133 Citations
27 Claims
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1. A method for reducing power consumed by a display device, the method comprising:
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displaying an active graphics component in a first portion of a display area provided by the display device;
in response to user inactivity in an inactive portion of the display area that is outside the first portion, altering video information in the inactive portion using a histogram manipulation of pixel values for a set of pixels in the inactive portion such that the display device will consume less power when displaying the altered video information than an amount of power that would be required to display the video information without the alteration; and
simultaneously displaying the active graphics component in the first portion and the altered video information in the inactive portion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 12, 13, 14, 20, 21, 22, 23, 24)
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10-11. -11. (canceled)
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15-19. -19. (canceled)
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25. A computer readable medium including instructions for reducing power consumed by a display device, the computer-readable medium comprising:
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displaying an active graphics component in a first portion of a display area provided by the display device;
instructions for, in response to user inactivity in an inactive portion of the display area that is outside the first portion, altering video information in the inactive portion using a histogram manipulation of pixel values for a set of pixels in the inactive portion such that the display device will consume less power when displaying the altered video information than an amount of power that would be required to display the video information without the alteration; and
instructions for simultaneously displaying the active graphics component in the first portion and the altered video information in the inactive portion. - View Dependent Claims (26, 27)
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Specification