Eccentric rotating mass actuator optimization for haptic effects

The invention discloses an eccentric rotating mass actuator optimization for haptic effects. A system that generates a haptic effect using an Eccentric Rotating Mass ('ERM') actuator determines a back electromotive force ('EMF') of the ERM actuator and receives a haptic effect si...

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Bibliographic Details
Main Authors GREENISH MICHAEL A, LACROIX ROBERT A, RAMSAY ERIN B
Format Patent
LanguageChinese
English
Published 25.09.2013
Subjects
ALARM SYSTEMS
CALCULATING
COMPUTING
COUNTING
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRIC DIGITAL DATA PROCESSING
ELECTRICITY
ORDER TELEGRAPHS
PHYSICS
SIGNALLING
SIGNALLING OR CALLING SYSTEMS
TELEPHONIC COMMUNICATION
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Summary:The invention discloses an eccentric rotating mass actuator optimization for haptic effects. A system that generates a haptic effect using an Eccentric Rotating Mass ('ERM') actuator determines a back electromotive force ('EMF') of the ERM actuator and receives a haptic effect signal comprising one or more parameters, where one of the parameters is a voltage amplitude level as a function of time. The system varies the voltage amplitude level based at least on the back EMF, and applies the varied haptic effect signal to the ERM actuator.
Bibliography:Application Number: CN2013180012