Haptic system with increased LRA bandwidth
US10540869B2 · kind B2 · utility
0Cited by
6References
18Claims
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Key dates
| Filing date | Jun 18, 2018 |
| Grant date | Jan 21, 2020 |
| Priority date | — |
| Expiry date | Jun 18, 2038 |
Classification
- Technology area (CPC —)General
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.