Invention Grant
- Patent Title: Haptic system with increased LRA bandwidth
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Application No.: US16010916Application Date: 2018-06-18
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Publication No.: US10586431B2Publication Date: 2020-03-10
- Inventor: Stephen D. Rank , Erin B. Ramsay , Henry Da Costa , Arnab Sen , Elena Renee Redelsheimer
- Applicant: IMMERSION CORPORATION
- Applicant Address: US CA San Jose
- Assignee: Immersion Corporation
- Current Assignee: Immersion Corporation
- Current Assignee Address: US CA San Jose
- Agency: Medler Ferro Woodhouse & Mills PLLC
- Main IPC: G08B6/00
- IPC: G08B6/00 ; G06F3/0488 ; G06F3/01

Abstract:
A method of generating a haptic effect on a linear resonance actuator (“LRA”) having a resonant frequency includes receiving a haptic effect signal for the haptic effect, where the haptic effect comprises a desired frequency that is off-resonant from the LRA. The method further includes generating a first sine wave at the desired frequency and generating a second sine wave at or near the resonant frequency. The method further includes combining the first sine wave and the second sine wave to generate a drive signal.
Public/Granted literature
- US10540869B2 Haptic system with increased LRA bandwidth Public/Granted day:2020-01-21
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