Patent ID: 11941211
Assignee: APPLE INC.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A touch sensor panel including:
one or more drive electrodes configured to be coupled to drive circuitry, the drive circuitry configured to apply one or more drive signals to the one or more drive electrodes during touch sensing,
one or more sense electrodes surrounded by the one or more drive electrodes and configured to be coupled to sense circuitry, the sense circuitry configured to sense one or more voltages of the one or more sense electrodes indicative of one or more mutual capacitances between the one or more sense electrodes and the one or more drive electrodes during the touch sensing, and
one or more second drive electrodes configured to be coupled to the drive circuitry, the drive circuitry further configured to apply one or more second drive signals to the one or more second drive electrodes, the one or more second drive signals having a different phase from a phase of the one or more drive signals.