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System, apparatus and method for haptic commands

  • US 10,198,919 B2
  • Filed: 08/28/2017
  • Issued: 02/05/2019
  • Est. Priority Date: 08/26/2016
  • Status: Active Grant
First Claim
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1. A system for generating haptic effects, comprising:

  • a command module that generates a first haptic command and a second haptic command;

    a haptic actuator that vibrates with a magnitude varying in accordance with a magnitude of a driving voltage; and

    a drive circuit comprising a first power supply circuit comprising a first booster, and a second power supply circuit comprising a second booster thatapplies a first driving voltage from the first power supply circuit and the first booster to the haptic actuator in response to the first haptic command,applies a second driving voltage larger than the first driving voltage from the second power supply circuit and the second booster to the haptic actuator in response to the second haptic command, andsteps up the first driving voltage with the first booster in response to a decrease of the first driving voltage;

    wherein a time for which the second driving voltage is applied is shorter than a time for which the first driving voltage is applied.

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