Determining Hover Distance of an Active Stylus
First Claim
Patent Images
1. A method comprising:
- detecting a change in capacitance at one or more capacitive nodes of a touch sensor of a device in response to a stylus being in proximity with but not touching the touch sensor, the stylus comprising one or more computer-readable media embodying logic and one or more electrodes for effecting charge transfer wirelessly in the device through the touch sensor of the device; and
analyzing the change in capacitance to determine a distance between the stylus and the device.
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Abstract
In one embodiment, a change in capacitance at one or more capacitive nodes of a touch sensor of a device is detected. The change in capacitance is detected in response to a stylus being in proximity with but not touching the touch sensor. The stylus includes one or more computer-readable media embodying logic and one or more electrodes for effecting charge transfer wirelessly in the device through the touch sensor of the device. The change in capacitance is analyzed to determine a distance between the stylus and the device.
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Citations
20 Claims
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1. A method comprising:
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detecting a change in capacitance at one or more capacitive nodes of a touch sensor of a device in response to a stylus being in proximity with but not touching the touch sensor, the stylus comprising one or more computer-readable media embodying logic and one or more electrodes for effecting charge transfer wirelessly in the device through the touch sensor of the device; and analyzing the change in capacitance to determine a distance between the stylus and the device. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. One or more computer-readable non-transitory storage media embodying logic that is operable when executed to:
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detect a change in capacitance at one or more capacitive nodes of a touch sensor of a device in response to a stylus being in proximity with but not touching the touch sensor, the stylus comprising one or more electrodes for effecting charge transfer wirelessly in the device through the touch sensor of the device; and analyze the change in capacitance to determine a distance between the stylus and the device. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A device comprising:
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a touch sensor comprising one or more capacitive nodes; and one or more computer-readable non-transitory storage media embodying logic that is operable when executed to; detect a change in capacitance at a capacitive node in response to a stylus being in proximity with but not touching the touch sensor, the stylus comprising one or more electrodes for effecting charge transfer wirelessly in the device through the touch sensor of the device; and analyze the change in capacitance to determine a distance between the stylus and the device. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification