Capacitive force sensor
US9182856B2 · kind B2 · utility
8Cited by
17References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 19, 2011 |
| Grant date | Nov 10, 2015 |
| Priority date | — |
| Expiry date | Apr 17, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0447
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In one embodiment, a method includes detecting movement of a spring structure of a force sensor coupled to a center shaft of an active stylus; measuring a change of capacitance between electrodes of the force sensor; and determining an amount of force applied to the center shaft based on the change of capacitance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.