Haptic device with linear resonant actuator

摘要

A haptic output device including an actuator configured to generate a haptic effect, and a processor configured to communicate a driving signal to the actuator and to communicate a braking signal to the actuator before or at the same time the driving signal is terminated to generate the haptic effect. The braking signal has a frequency substantially the same as a resonant frequency of the actuator and at a reverse phase of the driving signal.

主权项

1. A haptic output device, comprising:
an actuator configured to generate a haptic effect; and a processor configured for open loop braking based on a frequency of a driving signal, the processor being configured to communicate the driving signal to the actuator and to communicate the braking signal to the actuator before or at the same time the driving signal is terminated to generate the haptic effect, the braking signal having a frequency substantially the same as a resonant frequency of the actuator and at a reverse phase of the driving signal, wherein the processor comprises a lookup table comprising optimal braking parameters for different driving signals at different frequencies, wherein the optimal braking parameters comprise an optimal starting time of the braking signal and an optimal amplitude of the braking signal.