Device for removing residual vibration in linear resonant actuator and method for same
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United States of America
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Mar 11, 2025
Grant Date -
Jun 15, 2023
app pub date -
Feb 22, 2021
filing date -
Feb 22, 2021
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Abstract
The present invention relates to a haptic feedback system, and in particular to a device and method for rapidly removing residual vibration in a linear resonant actuator, the method driving the linear resonant actuator by applying a resonant frequency thereto to implement a haptic function and applying a braking signal for removing the residual vibration after the driving of the linear resonant actuator, wherein the braking signal is
- a driving wave for generating the same vibration waveform as a residual vibration waveform of the linear resonant actuator, and is applied to the linear resonant actuator at a point of time when a BEMF signal of the linear resonant actuator crosses a zero point, the braking signal being applied in an opposite direction in which it is possible to cancel the residual vibration waveform of the linear resonant actuator.
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