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Dampening mechanical modes of a haptic actuator using a delay

  • US 10,809,805 B2
  • Filed: 04/22/2019
  • Issued: 10/20/2020
  • Est. Priority Date: 03/31/2016
  • Status: Active Grant
First Claim
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1. An electronic device, comprising:

  • an enclosure;

    a haptic actuator mounted within the enclosure and comprising a movable mass; and

    a processor configured to apply a series of input waveforms to the haptic actuator,wherein;

    the applied series of input waveforms moves the movable mass to provide a haptic output;

    the processor applies a first input waveform, a second input waveform, and a third input waveform in the series of input waveforms with a first delay between the first input waveform and the second input waveform, and a second delay, different from the first delay, between the second input waveform and the third input waveform; and

    the processor configures the first and second delays to prevent the movable mass from contacting the enclosure.

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