Method for determining when a force sensor signal baseline in a force-based input device can be updated
US7698084B2 · kind B2 · utility
37Cited by
87References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 6, 2008 |
| Grant date | Apr 13, 2010 |
| Priority date | — |
| Expiry date | Mar 8, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/04144
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Disclosed is a method for determining a force sensor signal baseline in a force-based input device. The method includes accepting a signal associated with touch activity and determining a signal range, wherein the signal range decays with time and is reset when the signal exceeds the current range. A touch event is declared when the signal range exceeds a predetermined activity threshold. A previously determined baseline is held when a touch event is declared, and updated when a touch event is not declared.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.