Haptic feedback generation based on resonant frequency
AssigneeImmersion Corporation
InventorsPedro Gregorio, Danny A. Grant, Patrice Favreau, Eric Meunier
Life of this patent
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Abstract
A system that generates a haptic effect generates a drive cycle signal that includes a drive period and a monitoring period. The drive period includes a plurality of drive pulses that are based on the haptic effect. The system applies the drive pulses to a resonant actuator during the drive period and receives a signal from the resonant actuator that corresponds to the position of a mass in the actuator during the monitoring period.
Claims25
A method of generating a haptic effect comprising:
- generating a drive cycle signal that comprises a drive period and a monitoring period, wherein the drive period comprises a plurality of drive pulses that are based on the haptic effect;
- applying the drive pulses to a resonant actuator during the drive period, wherein the resonant actuator comprises a mass;
- and
- receiving a signal that comprises a position of the mass from the resonant actuator during the monitoring period.
A haptic effect enabled system comprising:
- a resonant actuator that comprises a mass;
- circuitry coupled to the resonant actuator, wherein the circuitry is adapted to generate a drive cycle signal that comprises a drive period and a monitoring period, wherein the drive period comprises a plurality of drive pulses that are based on a haptic effect;
- wherein the circuitry is adapted to apply the drive pulses to a resonant actuator during the drive period, and receive a signal that comprises a position of the mass from the resonant actuator during the monitoring period.
A system for generating a haptic effect comprising:
- means for generating a drive cycle signal that comprises a drive period and a monitoring period, wherein the drive period comprises a plurality of drive pulses that are based on the haptic effect;
- means for applying the drive pulses to a resonant actuator during the drive period, wherein the resonant actuator comprises a mass;
- and
- means for receiving a signal that comprises a position of the mass from the resonant actuator during the monitoring period.
A computer readable media having instructions stored thereon that, when executed by a processor, causes the processor to generate a haptic effect, the instructions comprising:
- generating a drive cycle signal that comprises a drive period and a monitoring period, wherein the drive period comprises a plurality of drive pulses that are based on the haptic effect;
- applying the drive pulses to a resonant actuator during the drive period, wherein the resonant actuator comprises a mass;
- and
- receiving a signal that comprises a position of the mass from the resonant actuator during the monitoring period.
Dependencies are inferred from the claim text.