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Systems and methods for touch and press detection using a sensor

  • US 10,140,499 B1
  • Filed: 05/25/2017
  • Issued: 11/27/2018
  • Est. Priority Date: 05/25/2017
  • Status: Active Grant
First Claim
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1. A device, comprising:

  • a fingerprint sensor; and

    a processor configured to;

    detect presence of a finger on the fingerprint sensor;

    cause the fingerprint sensor to take a plurality of measurements using multiple successive frames of the fingerprint sensor;

    for each measurement in the plurality of measurements, compute a metric associated with the measurement at a given frame corresponding to the measurement;

    at a first particular frame, determine that the finger has settled on the fingerprint sensor based on the metric at the first particular frame;

    based on determining that the finger has settled, determine that a finger touch has occurred;

    at a second particular frame, determine that the metric at the second particular frame has exceeded a press threshold; and

    based on determining that the finger has exceeded the press threshold, determine that a finger press has occurred.

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