CPC G06F 3/04162 (2019.05) [G06F 3/03545 (2013.01); G06F 3/0441 (2019.05); G06F 3/0442 (2019.05)] | 23 Claims |
1. An active pen comprising:
a signal processing circuit which, in operation, transmits, at a second timing decided based on a first timing of reception of a first uplink signal received from a sensor controller, a position signal and a data signal from a pen-tip electrode, and receives a second uplink signal; and
a first wireless communication circuit which, in operation, wirelessly communicates with the sensor controller,
wherein the signal processing circuit, in operation, determines whether the second uplink signal has been received at the second timing, and in a case of determining that the second uplink signal has not been received, the signal processing circuit transmits at least part of the data signal via the first wireless communication circuit while transmitting the position signal from the pen-tip electrode.
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