CPC G06F 3/0383 (2013.01) [G06F 3/03545 (2013.01); G06F 3/04162 (2019.05); G06F 2203/0382 (2013.01)] | 8 Claims |
1. An active pen that transmits, through coupling capacitance, a signal to a sensor electrode connected to a sensor controller, the active pen comprising:
a first electrode provided on a first portion in a pen axis direction of the active pen;
a second electrode provided on a second portion different from the first portion in the pen axis direction; and
a signal processor that transmits a downlink signal from the first electrode and that transmits a reverse-phase signal of the downlink signal from the second electrode at the same time,
wherein the second electrode includes a plurality of segmented electrodes, and
wherein the signal processor is capable of individually switching each of the plurality of segmented electrodes to transmit the downlink signal or to transmit the reverse-phase signal.
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