Patent ID: 11954271
Assignee: NOVATEK MICROELECTRONICS CORP.
Field: Computer technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 15:
16. A method performed by an active stylus, the active stylus comprising a touch sensor arranged inside the active stylus and along at least a portion of an inner surface region of a pen body of the active stylus, and the at least a portion of the inner surface region corresponding to a preset pen-holding region on an outer surface of the pen body, wherein, the touch sensor is insulated from the pen body, and when an external operating subject touches the preset pen-holding region and touches a touch panel, an uplink signal transmitted by the touch panel is coupled to the pen body via the external operating subject, as an uplink interference signal,
the method comprising:
receiving the uplink signal from the touch panel;
generating a compensation signal for compensating the uplink interference signal, and obtaining a compensated interference signal generated based on the compensation signal and the uplink interference signal;
generating an uplink signal to be processed based on the received uplink signal and the compensated interference signal; and
obtaining uplink information based on the uplink signal to be processed.