发明授权
- 专利标题: Eccentric rotating mass actuator optimization for haptic effects
- 专利标题(中): 偏心旋转质量执行器优化用于触觉效果
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申请号: US13755423申请日: 2013-01-31
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公开(公告)号: US08791799B2公开(公告)日: 2014-07-29
- 发明人: Robert A. Lacroix , Michael A. Greenish , Erin B. Ramsay
- 申请人: Immersion Corporation
- 申请人地址: US CA San Jose
- 专利权人: Immersion Corporation
- 当前专利权人: Immersion Corporation
- 当前专利权人地址: US CA San Jose
- 代理机构: Miles & Stockbridge P.C.
- 主分类号: H04B3/36
- IPC分类号: H04B3/36 ; G06F3/01
摘要:
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.
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