LOW-LATENCY TOUCH FEEDBACK
First Claim
Patent Images
1. A touch screen controller coupled to a touch sensor, a display, and a central processing unit, the touch screen controller configured to:
- detect first touch input received by the touch sensor; and
change a visual characteristic of the display upon detecting the first touch input, wherein detecting the first touch input and changing the visual characteristic are performed while the central processing unit is in a sleep state.
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Abstract
Embodiments of the present invention generally provide a touch screen controller coupled to a touch sensor, a display, and a central processing unit. The touch screen controller is configured to detect first touch input received by the touch sensor and change a visual characteristic of the display upon detecting the first touch input. Detecting the first touch input and changing the visual characteristic are performed while the central processing unit is in a sleep state.
34 Citations
20 Claims
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1. A touch screen controller coupled to a touch sensor, a display, and a central processing unit, the touch screen controller configured to:
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detect first touch input received by the touch sensor; and change a visual characteristic of the display upon detecting the first touch input, wherein detecting the first touch input and changing the visual characteristic are performed while the central processing unit is in a sleep state. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for input sensing with a touch screen controller, the method comprising:
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detecting first touch input received by a touch sensor; and changing a visual characteristic of a display upon detecting the first touch input, wherein detecting the first touch input and changing the visual characteristic are performed while a central processing unit is in a sleep state. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. A touch screen controller for a touch screen device having a touch sensor and a display, the touch screen controller comprising:
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a sensor module coupled to a central processing unit and the touch sensor, the sensor module configured to detect first touch input received by the touch sensor; and a display driver module coupled to the display and configured to change a visual characteristic of the display when the sensor module detects the first touch input, wherein detecting the first touch input and changing the visual characteristic are performed while the central processing unit is in a sleep state. - View Dependent Claims (19, 20)
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Specification