Force feedback haptic interface for a three-dimensional CAD surface
US5694013A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 6, 1996 |
| Grant date | Dec 2, 1997 |
| Priority date | — |
| Expiry date | Sep 6, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B2219/40122
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for providing a haptic interface between a user held physical device and a computer generated parametric surface determines if a collision has occurred therebetween. If a collision has occurred, a force to apply to the physical device is determined and a force actuation mechanism is activated so as to produce the force at the physical device. If a collision has not occurred, the force actuation mechanism is deactivated. The method is repeated as the physical device is moved through a virtual space in which the parametric surface is modeled. The physical device is capable of transmitting forces in at least three degrees-of-freedom via the force actuation mechanism which is connected thereto. A human operator holding the physical device can thus interact with the surface, which may be a CAD generated surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.