Hierarchical methods for generating force feedback effects
US7280095B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 30, 2003 |
| Grant date | Oct 9, 2007 |
| Priority date | — |
| Expiry date | Aug 9, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/016
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Embodiments of the invention relate to a hierarchical method for generating force feedback effects. In one embodiment, a method comprises receiving a first force contribution associated with a first (e.g., previous) position of a manipulandum; determining a second force contribution associated with a second (e.g., current) position of the manipulandum; and outputting a force signal to an actuator coupled to the manipulandum, such that the actuator renders a feedback force having a sum of the first and second force contributions. The method may further include classifying force effects according to a predetermined “hierarchy” (or “priority”) scheme, whereby the second force contribution is related to “high” priority force effects associated with the second position, and the first force contribution is related to “low” priority force effects associated with the first position. As such, computation delay in outputting force feedback effects can be substantially reduced, thereby enhancing the stability and performance of the underlying force feedback system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.