Patent ID: 11861110
Assignee: APPLE INC.
Field: Computer technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 12:
13. An electronic device, comprising:
a housing;
display circuitry having pixels formed using an anode layer and a cathode layer;
touch sensor circuitry formed above and overlapping the display circuitry within the housing;
a shielding layer interposed between the display circuitry and the touch sensor circuitry; and
noise cancellation circuitry configured to receive a noise signal, to invert the noise signal, and to drive the inverted noise signal onto the shielding layer to prevent noise associated with the display circuitry from interfering with the touch sensor circuitry, wherein the noise cancellation circuitry comprises an inverting circuit having:
an input coupled to a first location on a conductive shielding structure in the shielding layer and coupled to a second location on the conductive shielding structure different than the first location, and
an output coupled to the conductive shielding structure.