Detecting an active pen using a capacitive sensing device
First Claim
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1. A processing system for an integrated display and capacitive sensing device, comprising:
- a sensor module including sensor circuitry configured to be coupled to a plurality of sensor electrodes, the sensor module configured to receive an active pen signal with at least one sensor electrode of the plurality of sensor electrodes; and
a determination module configured to adjust a blanking period for the integrated display for alignment with a transmission period of the active pen signal in response to receiving the active pen signal.
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Abstract
In an example, a processing system for an integrated display and capacitive sensing device includes a sensor module and a determination module. The sensor module includes sensor circuitry configured to be coupled to a plurality of sensor electrodes. The sensor module is configured to receive an active pen signal with at least one sensor electrode of the plurality the sensor electrodes. The determination module is configured to adjust a sensing period of the sensor module for alignment with a transmission period of the active pen signal.
315 Citations
24 Claims
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1. A processing system for an integrated display and capacitive sensing device, comprising:
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a sensor module including sensor circuitry configured to be coupled to a plurality of sensor electrodes, the sensor module configured to receive an active pen signal with at least one sensor electrode of the plurality of sensor electrodes; and a determination module configured to adjust a blanking period for the integrated display for alignment with a transmission period of the active pen signal in response to receiving the active pen signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 21, 22)
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10. An input device integrated with a display, the input device comprising:
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a plurality of sensor electrodes; and a processing system, coupled to the plurality of sensor electrodes, configured to; receive an active pen signal with at least one sensor electrode of the plurality of sensor electrodes; and adjust a blanking period for the display for alignment with a transmission period of the active pen signal in response to receiving the active pen signal. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. A method of operating an input device integrated with a display, the method comprising:
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receiving an active pen signal with at least one sensor electrode of a plurality of sensor electrodes; and adjusting a blanking period for the display for alignment with a transmission period of the active pen signal in response to receiving the active pen signal. - View Dependent Claims (19, 20, 23, 24)
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Specification