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Sensing an active device'S transmission using timing interleaved with display updates

  • US 10,037,112 B2
  • Filed: 09/30/2015
  • Issued: 07/31/2018
  • Est. Priority Date: 09/30/2015
  • Status: Active Grant
First Claim
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1. A processing system for a capacitive sensing device, comprising:

  • a sensor module comprising sensor circuitry configured to acquire sensor data using a first resulting signal received with at least one sensor electrode during a first half sensing period of a sensing period and a second resulting signal received with the at least one sensor electrode during a second half sensing period of the sensing period;

    wherein;

    the first half sensing period includes a first display blanking period and a first reset period;

    the second half sensing period includes a second display blanking period and a second reset period;

    the first reset period occurs between the first display blanking period and the second display blanking period and overlaps at least a first output display line period; and

    the second reset period occurs between the second display blanking period and a third display blanking period and overlaps at least a second output display line period;

    wherein the at least one sensor electrode comprises at least one display electrode of a plurality of display electrodes, and wherein the at least one display electrode is configured to be driven for display updating and capacitive sensing.

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