Dual resistive strain and pressure sensor for force touch
US10353506B2 · kind B2 · utility
22Cited by
29References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 16, 2017 |
| Grant date | Jul 16, 2019 |
| Priority date | — |
| Expiry date | Jun 27, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2203/04106
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Structures and methods are disclosed for an electronic device having an input surface that uses dual sensors to measure forces applied to the input surface. The forces can be estimated over a greater range of values than would be possible with either sensor alone. A second sensor can be used after a first sensor has reached a limit. A first sensor can be a strain sensor and a second sensor a pressure sensor. Both sensors may be resistance based, with signals from both sensors can be combined and measured by processing circuitry. Each sensor type may be part of planar arrays disposed beneath the input surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.