Systems and methods for reducing power consumption in a touch sensor display
First Claim
1. An information handling system comprising:
- a processor;
a user interface comprising;
a display;
a display controller configured to control operation of the display;
a touch sensor overlaid on the display and configured to detect tactile touches on the user interface; and
a touch sensor controller communicatively interfaced between the touch sensor and the processor and configured to;
translate signals received from the touch sensor and communicate such translated signals to the processor; and
control a rate of sampling of tactile touches on the touch sensor; and
a proximity sensor physically separate from the touch sensor and communicatively coupled to the processor and configured to detect a human finger or stylus proximate to the touch sensor;
wherein the processor is configured to;
based on information communicated to the processor from the touch sensor, the proximity sensor, and the display controller, determine a power mode for the touch sensor, the power mode comprising one of a warm mode and a sleep mode in which the touch sensor consumes less power than when in the warm mode;
wherein the warm mode may occur when the display controller has entered a power self-refresh mode;
based on the power mode, determine a desired rate of sampling which is different for each power mode; and
cause the touch sensor controller to control the rate of sampling such that the touch sensor operates at the desired rate of sampling.
14 Assignments
0 Petitions
Accused Products
Abstract
In accordance with embodiments of the present disclosure, a method may include receiving information communicated from a touch sensor controller configured to translate signals received from the touch sensor and control a rate of sampling of tactile touches on the touch sensor. The method may also include receiving information communicated from a proximity sensor configured to detect a human finger or stylus proximate to the touch sensor. The method may further include, based on the information communicated from the touch sensor controller and information communicated from the proximity sensor, determining a desired rate of sampling. The method may additionally include causing the touch sensor controller to control the rate of sampling such that the touch sensor operates at the desired rate of sampling.
37 Citations
21 Claims
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1. An information handling system comprising:
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a processor; a user interface comprising; a display; a display controller configured to control operation of the display; a touch sensor overlaid on the display and configured to detect tactile touches on the user interface; and a touch sensor controller communicatively interfaced between the touch sensor and the processor and configured to; translate signals received from the touch sensor and communicate such translated signals to the processor; and control a rate of sampling of tactile touches on the touch sensor; and a proximity sensor physically separate from the touch sensor and communicatively coupled to the processor and configured to detect a human finger or stylus proximate to the touch sensor; wherein the processor is configured to; based on information communicated to the processor from the touch sensor, the proximity sensor, and the display controller, determine a power mode for the touch sensor, the power mode comprising one of a warm mode and a sleep mode in which the touch sensor consumes less power than when in the warm mode; wherein the warm mode may occur when the display controller has entered a power self-refresh mode; based on the power mode, determine a desired rate of sampling which is different for each power mode; and cause the touch sensor controller to control the rate of sampling such that the touch sensor operates at the desired rate of sampling. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method comprising:
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receiving information communicated from a touch sensor controller configured to translate signals received from a touch sensor and control a rate of sampling of tactile touches on the touch sensor; receiving information communicated from a display controller configured to control operation of a display associated with the touch sensor; receiving information communicated from a proximity sensor physically separate from the touch sensor and configured to detect a human finger or stylus proximate to the touch sensor; based on the information communicated to a processor from the touch sensor controller, the proximity sensor, and the display controller, determining a power mode for the touch sensor, the power mode comprising one of a warm mode and a sleep mode in which the touch sensor consumes less power than when in the warm mode; wherein the warm mode may occur when the display controller has entered a power self-refresh mode; based on the power mode, determining a desired rate of sampling which is different for each power mode; and causing the touch sensor controller to control the rate of sampling such that the touch sensor operates at the desired rate of sampling. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. An article of manufacture comprising:
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a computer readable medium; and computer-executable instructions carried on the computer readable medium, the instructions readable by a processor, the instructions, when read and executed, for causing the processor to; receive information communicated from a display controller configured to control operation of a display associated with the touch sensor; receive information communicated from a touch sensor controller configured to translate signals received from the touch sensor and control a rate of sampling of tactile touches on the touch sensor; receive information communicated from a proximity sensor physically separate from the touch sensor and configured to detect a human finger or stylus proximate to the touch sensor; based on the information communicated from the touch sensor controller, the proximity sensor, and the display controller, determine a power mode for the touch sensor, the power mode comprising one of a warm mode and a sleep mode in which the touch sensor consumes less power than when in the warm mode; wherein the warm mode may occur when the display controller has entered a power self-refresh mode; based on the power mode, determine a desired rate of sampling which is different for each power mode; and
cause the touch sensor controller to control the rate of sampling such that the touch sensor operates at the desired rate of sampling. - View Dependent Claims (16, 17, 18, 19, 20, 21)
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Specification