×

ESD detection on a touch input device

  • US 9,075,481 B2
  • Filed: 12/10/2012
  • Issued: 07/07/2015
  • Est. Priority Date: 09/10/2012
  • Status: Active Grant
First Claim
Patent Images

1. A method for detecting an occurrence of an ESD event on a touch input device, the method comprising:

  • applying stimulation signals to a plurality of drive lines of a touch sensor panel, wherein the stimulation signals are applied in a multi-step sequence of stimulation signals, each step having different stimulation signals;

    acquiring a touch image of the touch sensor panel wherein the touch image comprises a plurality of sensed values based on the stimulation signals; and

    determining a correlation of the touch image to one or more of the different stimulation signals, the correlation of one or more, but fewer than all, of the different stimulation signals indicative of the ESD event.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×