Patent ID: 11954285
Assignee: SENSEL, INC.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 10:
11. The method of claim 8, further comprising:
at the third time, driving a set of drive electrodes, arranged proximal the set of sense of electrodes to form an array of drive and sense electrode pairs, with a drive signal;
extracting, from the third sense signal, the third direct component representing a direct-current component of the drive signal passed by a variable resistor, the variable resistor formed by a third drive and sense electrode pair proximal the third location; and
extracting, from the third sense signal, the third alternating component of the third sense signal representing high-frequency components of the drive signal passed by a variable air-gap capacitor during the third scan cycle, the variable air-gap capacitor:
formed by the third drive and sense electrode pair and a volume of air interposed between the third drive electrode and the third sense electrode in the third drive and sense electrode pair; and
connected in parallel to the third variable resistor.