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Synchronized array of vibration actuators in a network topology

  • US 9,459,632 B2
  • Filed: 03/06/2013
  • Issued: 10/04/2016
  • Est. Priority Date: 06/27/2005
  • Status: Active Grant
First Claim
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1. A vibration device, comprising:

  • a mounting platform;

    a plurality of linear resonant actuators attached to the mounting platform, each of the plurality of linear resonant actuators having a moveable mass and an axis of vibration in accordance with a direction of movement of the moveable mass, the axes of vibration of the plurality of actuators being arranged in a substantially parallel configuration; and

    a controller coupled to each of the plurality of actuators, the controller being configured to (1) control each actuator to impart a sinusoidal vibration force of a frequency, f1, onto the mounting platform, and (2) control amplitudes and phases of the sinusoidal vibration force from each actuator to generate a combined vibration waveform onto the mounting platform;

    the combined vibration waveform emulating a virtual vibration actuator having one or both of the following properties;

    a faster amplitude response than any one of the plurality of linear resonant actuators, or a larger amplitude response than any one of the plurality of linear resonant actuators for non-resonant frequencies.

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