Patent ID: 11972076
Assignee: SYNAPTICS INCORPORATED
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 14:
15. A method for performing presence detection, comprising:
performing, by an input device having a plurality of sensor electrodes, single-burst multi-frequency presence detection, wherein performing single-burst multi-frequency presence detection includes:
driving transmitter electrodes of the plurality of electrodes with transmitter signals having different frequencies;
obtaining resulting signals via receiver electrodes of the plurality of electrodes based on the transmitter signals driven onto the transmitter electrodes; and
detecting whether an input object is present within a sensing region of the input device based on the obtained resulting signals; and

entering, by a processing system of the input device, an active mode based on a result of performing single-burst multi-frequency presence detection indicating that an input object is present.