Force sensing architectures
US11803276B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 9, 2020 |
| Grant date | Oct 31, 2023 |
| Priority date | — |
| Expiry date | Dec 9, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2203/04105
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An electronic device with a force sensing device is disclosed. The electronic device comprises a user input surface defining an exterior surface of the electronic device, a first capacitive sensing element, and a second capacitive sensing element capacitively coupled to the first capacitive sensing element. The electronic device also comprises a first spacing layer between the first and second capacitive sensing elements, and a second spacing layer between the first and second capacitive sensing elements. The first and second spacing layers have different compositions. The electronic device also comprises sensing circuitry coupled to the first and second capacitive sensing elements configured to determine an amount of applied force on the user input surface. The first spacing layer is configured to collapse if the applied force is below a force threshold, and the second spacing layer is configured to collapse if the applied force is above the force threshold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.