Resistive actuator with dynamic variations of frictional forces
US8154537B2 · kind B2 · utility
38Cited by
1References
23Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 16, 2007 |
| Grant date | Apr 10, 2012 |
| Priority date | — |
| Expiry date | May 16, 2030 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60K2360/126
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A system for generating haptic effects on a rotary knob includes an electrical coil and a core. A first level of voltage is applied to the coil to enable a first surface interface having a first coefficient of friction and to generate a first haptic effect by varying the voltage. A second level of voltage is applied to the coil to enable a second surface interface having a second coefficient of friction that is greater than the first coefficient of friction and to generate a second haptic effect by varying the voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.