Haptic system with increased LRA bandwidth
US9524624B2 · kind B2 · utility
7Cited by
6References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 13, 2013 |
| Grant date | Dec 20, 2016 |
| Priority date | — |
| Expiry date | Feb 1, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0488
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
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.